Patent Id | Score | Title | Patent Type | Publication Date | Priority Date | Family Id | Search Efficiency | Original Assignee | Current Assignee |
|---|---|---|---|---|---|---|---|---|---|
| US6826527B1 | 1.556 | Concealment of frame erasures and method | GRANT | 2004-11-30 | 1999-11-23 | 33455919 | Great | Texas Instruments Inc | Texas Instruments Inc |
| EP1235203A2 | 1.510 | Method for concealing erased speech frames and decoder therefor | GRANT | 2002-08-28 | 2001-02-27 | 23036537 | Great | Texas Instruments Inc | Texas Instruments Inc |
| EP1103953A2 | 1.479 | Method for concealing erased speech frames | GRANT | 2001-05-30 | 1999-11-23 | 22606354 | Great | Texas Instruments Inc | Texas Instruments Inc |
| EP1088205A1 | 1.410 | IMPROVED LOST FRAME RECOVERY TECHNIQUES FOR PARAMETRIC LPC-BASED SPEECH CODING SYSTEMS | GRANT | 2001-04-04 | 1998-06-19 | 22277389 | Great | Comsat Corp | Comsat Corp |
| US6775649B1 | 1.390 | Concealment of frame erasures for speech transmission and storage system and method | GRANT | 2004-08-10 | 1999-09-01 | 32830762 | Great | Texas Instruments Inc | Texas Instruments Inc |
| EP1276832A2 | 1.356 | FRAME ERASURE COMPENSATION METHOD IN A VARIABLE RATE SPEECH CODER | GRANT | 2003-01-22 | 2000-04-24 | 24224779 | Great | Qualcomm Inc | Qualcomm Inc |
| EP1316087A1 | 1.347 | TRANSMISSION ERROR CONCEALMENT IN AN AUDIO SIGNAL | GRANT | 2003-06-04 | 2000-09-05 | 8853973 | Great | France Telecom SA | Orange SA |
| US6324503B1 | 1.330 | Method and apparatus for providing feedback from decoder to encoder to improve performance in a predictive speech coder under frame erasure conditions | GRANT | 2001-11-27 | 1999-07-19 | 23403267 | Great | Qualcomm Inc | Qualcomm Inc |
| EP1301891A2 | 1.323 | A SPEECH COMMUNICATION SYSTEM AND METHOD FOR HANDLING LOST FRAMES | GRANT | 2003-04-16 | 2000-07-14 | 24472632 | Great | Lakestar Semi Inc | Mindspeed Technologies LLC |
| US6952668B1 | 1.293 | Method and apparatus for performing packet loss or frame erasure concealment | GRANT | 2005-10-04 | 1999-04-19 | 35005201 | Great | AT&T Corp | AT&T Intellectual Property II LP |
| WO2000063885A1 | 1.273 | METHOD AND APPARATUS FOR PERFORMING PACKET LOSS OR FRAME ERASURE CONCEALMENT | APPLICATION | 2000-10-26 | 1999-04-19 | 22442648 | Great | ||
| US6871176B2 | 1.261 | Phase excited linear prediction encoder | GRANT | 2005-03-22 | 2001-07-26 | 25436387 | Great | NXP USA Inc | Apple Inc |
| US6973425B1 | 1.255 | Method and apparatus for performing packet loss or Frame Erasure Concealment | GRANT | 2005-12-06 | 1999-04-19 | 35430589 | Great | AT&T Corp | AT&T Corp |
| EP0747883A2 | 1.253 | Voiced/unvoiced classification of speech for use in speech decoding during frame erasures | GRANT | 1996-12-11 | 1995-06-07 | 23917119 | Great | AT&T Corp, AT&T IPM Corp | AT&T Corp |
| US7117156B1 | 1.248 | Method and apparatus for performing packet loss or frame erasure concealment | GRANT | 2006-10-03 | 1999-04-19 | 37037373 | Great | AT&T Corp | AT&T Intellectual Property II LP |
| EP0747882A2 | 1.246 | Pitch delay modification during frame erasures | GRANT | 1996-12-11 | 1995-06-07 | 23917124 | Great | AT&T Corp, AT&T IPM Corp | AT&T Corp |
| US7047190B1 | 1.244 | Method and apparatus for performing packet loss or frame erasure concealment | GRANT | 2006-05-16 | 1999-04-19 | 43855535 | Great | AT&T Corp | AT&T Intellectual Property II LP |
| US6233550B1 | 1.236 | Method and apparatus for hybrid coding of speech at 4kbps | GRANT | 2001-05-15 | 1997-08-29 | 22010447 | Great | University of California | University of California |
| US7577565B2 | 1.228 | Adaptive voice playout in VOP | GRANT | 2009-08-18 | 2001-02-21 | 33134512 | Great | Texas Instruments Inc | Texas Instruments Inc |
| US7050968B1 | 1.228 | Speech signal decoding method and apparatus using decoded information smoothed to produce reconstructed speech signal of enhanced quality | GRANT | 2006-05-23 | 1999-07-28 | 16653319 | Great | NEC Corp | NEC Corp |
| EP0747884A2 | 1.223 | Codebook gain attenuation during frame erasures | GRANT | 1996-12-11 | 1995-06-07 | 23928093 | Great | AT&T Corp, AT&T IPM Corp | AT&T Corp |
| EP1329877A2 | 1.221 | Speech synthesis and decoding | GRANT | 2003-07-23 | 2002-01-16 | 21944711 | Great | Digital Voice Systems Inc | Digital Voice Systems Inc |
| EP0925580A2 | 1.221 | TRANSMITTER WITH AN IMPROVED SPEECH ENCODER AND DECODER | GRANT | 1999-06-30 | 1997-07-11 | 8228544 | Great | Koninklijke Philips NV | Koninklijke Philips NV, Philips AB |
| US7139700B1 | 1.220 | Hybrid speech coding and system | GRANT | 2006-11-21 | 1999-09-22 | 37423309 | Great | Texas Instruments Inc | Texas Instruments Inc |
| US7222070B1 | 1.216 | Hybrid speech coding and system | GRANT | 2007-05-22 | 1999-09-22 | 38049635 | Great | Texas Instruments Inc | Texas Instruments Inc |
| US6614370B2 | 1.215 | Redundant compression techniques for transmitting data over degraded communication links and/or storing data on media subject to degradation | GRANT | 2003-09-02 | 2001-01-26 | 26735819 | Great | ||
| US7039581B1 | 1.210 | Hybrid speed coding and system | GRANT | 2006-05-02 | 1999-09-22 | 36216191 | Great | Texas Instruments Inc | Texas Instruments Inc |
| US4360708A | 1.205 | Speech processor having speech analyzer and synthesizer | GRANT | 1982-11-23 | 1978-03-30 | 27460429 | Great | NEC Corp | NEC Corp |
| EP1037197A2 | 1.205 | Voicing analysis in a linear predictive speech coder | GRANT | 2000-09-20 | 1999-03-17 | 26413193 | Great | YRP Advanced Mobile Communication Systems Research Laboratories Co Ltd | YRP Advanced Mobile Communication Systems Research Laboratories Co Ltd |
| EP0932141A2 | 1.204 | Method for signal controlled switching between different audio coding schemes | GRANT | 1999-07-28 | 1998-01-22 | 22105686 | Great | Deutsche Telekom AG | Deutsche Telekom AG |
| EP1281174A1 | 1.197 | FORWARD ERROR CORRECTION IN SPEECH CODING | GRANT | 2003-02-05 | 2000-05-11 | 24274909 | Great | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| EP0785541B1 | 1.193 | Usage of voice activity detection for efficient coding of speech | GRANT | 2003-04-16 | 1996-01-22 | 24356733 | Great | Rockwell International Corp | Boeing North American Inc |
| US6260017B1 | 1.192 | Multipulse interpolative coding of transition speech frames | GRANT | 2001-07-10 | 1999-05-07 | 23189096 | Great | Qualcomm Inc | Qualcomm Inc |
| EP1433164A1 | 1.192 | IMPROVED FRAME ERASURE CONCEALMENT FOR PREDICTIVE SPEECH CODING BASED ON EXTRAPOLATION OF SPEECH WAVEFORM | GRANT | 2004-06-30 | 2001-08-17 | 27539098 | Great | Broadcom Corp | Broadcom Corp |
| EP1279167A1 | 1.191 | METHOD AND APPARATUS FOR PREDICTIVELY QUANTIZING VOICED SPEECH | GRANT | 2003-01-29 | 2000-04-24 | 24224775 | Great | Qualcomm Inc | Qualcomm Inc |
| EP1129450A1 | 1.185 | LOW BIT-RATE CODING OF UNVOICED SEGMENTS OF SPEECH | GRANT | 2001-09-05 | 1998-11-13 | 22706272 | Great | Qualcomm Inc | Qualcomm Inc |
| US6640209B1 | 1.185 | Closed-loop multimode mixed-domain linear prediction (MDLP) speech coder | GRANT | 2003-10-28 | 1999-02-26 | 29250309 | Great | Qualcomm Inc | Qualcomm Inc |
| US7590525B2 | 1.182 | Frame erasure concealment for predictive speech coding based on extrapolation of speech waveform | GRANT | 2009-09-15 | 2001-08-17 | 27397154 | Great | Broadcom Corp | Avago Technologies General IP Singapore Pte Ltd |
| US7031926B2 | 1.181 | Spectral parameter substitution for the frame error concealment in a speech decoder | GRANT | 2006-04-18 | 2000-10-23 | 22915004 | Great | Nokia Oyj | Nokia Technologies Oy |
| US6449592B1 | 1.181 | Method and apparatus for tracking the phase of a quasi-periodic signal | GRANT | 2002-09-10 | 1999-02-26 | 22984178 | Great | Qualcomm Inc | Qualcomm Inc |
| US6188980B1 | 1.176 | Synchronized encoder-decoder frame concealment using speech coding parameters including line spectral frequencies and filter coefficients | GRANT | 2001-02-13 | 1998-08-24 | 26793416 | Great | Lakestar Semi Inc | Samsung Electronics Co Ltd |
| US7379865B2 | 1.166 | System and methods for concealing errors in data transmission | GRANT | 2008-05-27 | 2001-10-26 | 21698931 | Great | AT&T Corp | AT&T Corp |
| US4821324A | 1.166 | Low bit-rate pattern encoding and decoding capable of reducing an information transmission rate | GRANT | 1989-04-11 | 1984-12-24 | 26498945 | Great | NEC Corp | NEC Corp |
| EP1103955A2 | 1.164 | Multiband harmonic transform coder | GRANT | 2001-05-30 | 1999-11-29 | 23778441 | Great | Digital Voice Systems Inc | Digital Voice Systems Inc |
| EP1454315A2 | 1.163 | SIGNAL MODIFICATION METHOD FOR EFFICIENT CODING OF SPEECH SIGNALS | GRANT | 2004-09-08 | 2001-12-14 | 4170862 | Great | VoiceAge Corp | Nokia Oyj |
| US5550543A | 1.160 | Frame erasure or packet loss compensation method | GRANT | 1996-08-27 | 1994-10-14 | 23262912 | Great | Nokia of America Corp | Nokia of America Corp |
| EP0673015A2 | 1.157 | Computational complexity reduction during frame erasure or packet loss | GRANT | 1995-09-20 | 1994-03-14 | 22790996 | Great | AT&T Corp | AT&T Corp |
| EP0673017A2 | 1.156 | Excitation signal synthesis during frame erasure or packet loss | GRANT | 1995-09-20 | 1994-03-14 | 22790887 | Great | AT&T Corp | AT&T Corp |
| EP1259955A1 | 1.155 | METHOD AND APPARATUS FOR TRACKING THE PHASE OF A QUASI-PERIODIC SIGNAL | GRANT | 2002-11-27 | 2000-02-29 | 21741099 | Great | Qualcomm Inc | Qualcomm Inc |
| EP1141945A1 | 1.147 | ADAPTIVE WINDOWS FOR ANALYSIS-BY-SYNTHESIS CELP-TYPE SPEECH CODING | GRANT | 2001-10-10 | 1998-12-30 | 22836203 | Great | Nokia Mobile Phones Ltd, Nokia Oyj | Nokia Oyj |
| US7013269B1 | 1.147 | Voicing measure for a speech CODEC system | GRANT | 2006-03-14 | 2001-02-13 | 35998890 | Great | Hughes Electronics Corp | JPMorgan Chase Bank NA, Hughes Network Systems LLC |
| EP1002312A1 | 1.147 | TRANSMITTER WITH AN IMPROVED HARMONIC SPEECH ENCODER | GRANT | 2000-05-24 | 1997-07-11 | 8228541 | Great | Koninklijke Philips NV, Philips AB | Koninklijke Philips NV, Philips AB |
| EP1222659A1 | 1.146 | LPC-HARMONIC VOCODER WITH SUPERFRAME STRUCTURE | GRANT | 2002-07-17 | 1999-09-22 | 23586142 | Great | Microsoft Corp | Microsoft Corp |
| US20040002856A1 | 1.146 | Multi-rate frequency domain interpolative speech CODEC system | APPLICATION | 2004-01-01 | 2002-03-08 | 29782470 | Great | Hughes Electronics Corp | Hughes Network Systems LLC |
| US6931373B1 | 1.145 | Prototype waveform phase modeling for a frequency domain interpolative speech codec system | GRANT | 2005-08-16 | 2001-02-13 | 34831089 | Great | Hughes Electronics Corp | JPMorgan Chase Bank NA, Hughes Network Systems LLC |
| US6453287B1 | 1.145 | Apparatus and quality enhancement algorithm for mixed excitation linear predictive (MELP) and other speech coders | GRANT | 2002-09-17 | 1999-02-04 | 26816592 | Great | Georgia Tech Research Corp | Georgia Tech Research Corp |
| EP1340223A2 | 1.144 | METHOD AND APPARATUS FOR ROBUST SPEECH CLASSIFICATION | GRANT | 2003-09-03 | 2000-12-08 | 24948935 | Great | Qualcomm Inc | Qualcomm Inc |
| EP1259957A1 | 1.140 | CLOSED-LOOP MULTIMODE MIXED-DOMAIN LINEAR PREDICTION SPEECH CODER | GRANT | 2002-11-27 | 2000-02-29 | 21741098 | Great | Qualcomm Inc | Qualcomm Inc |
| US6996523B1 | 1.138 | Prototype waveform magnitude quantization for a frequency domain interpolative speech codec system | GRANT | 2006-02-07 | 2001-02-13 | 35734335 | Great | Hughes Electronics Corp | JPMorgan Chase Bank NA, Hughes Network Systems LLC |
| EP1088304A1 | 1.137 | A FREQUENCY DOMAIN INTERPOLATIVE SPEECH CODEC SYSTEM | GRANT | 2001-04-04 | 1999-04-05 | 22431916 | Great | Hughes Electronics Corp | DirecTV Group Inc |
| EP1930881A2 | 1.137 | Speech decoder employing noise compensation | GRANT | 2008-06-11 | 1998-08-24 | 39362821 | Great | Mindspeed Technologies LLC | Samsung Electronics Co Ltd |
| EP1509906A2 | 1.137 | METHOD AND DEVICE FOR PITCH ENHANCEMENT OF DECODED SPEECH | GRANT | 2005-03-02 | 2002-05-31 | 29589086 | Great | VoiceAge Corp | VoiceAge Corp |
| US7386444B2 | 1.135 | Hybrid speech coding and system | GRANT | 2008-06-10 | 2000-09-22 | 39514347 | Great | Texas Instruments Inc | Texas Instruments Inc |
| EP1390945A1 | 1.134 | METHOD AND APPARATUS FOR IMPROVED VOICING DETERMINATION IN SPEECH SIGNALS CONTAINING HIGH LEVELS OF JITTER | GRANT | 2004-02-25 | 2001-05-31 | 25356695 | Great | Nokia Oyj | Nokia Oyj |
| US6463406B1 | 1.134 | Fractional pitch method | GRANT | 2002-10-08 | 1994-03-25 | 22813371 | Great | Texas Instruments Inc | Texas Instruments Inc |
| US6823303B1 | 1.134 | Speech encoder using voice activity detection in coding noise | GRANT | 2004-11-23 | 1998-08-24 | 26793428 | Great | Lakestar Semi Inc | MACOM Technology Solutions Holdings Inc |
| EP0673018A2 | 1.134 | Linear prediction coefficient generation during frame erasure or packet loss | GRANT | 1995-09-20 | 1994-03-14 | 22791178 | Great | AT&T Corp | AT&T Corp |
| US6564182B1 | 1.133 | Look-ahead pitch determination | GRANT | 2003-05-13 | 2000-05-12 | 24275292 | Great | Lakestar Semi Inc | MACOM Technology Solutions Holdings Inc, WIAV Solutions LLC |
| US7363219B2 | 1.132 | Hybrid speech coding and system | GRANT | 2008-04-22 | 2000-09-22 | 39356555 | Great | Texas Instruments Inc | Texas Instruments Inc |
| US5699477A | 1.130 | Mixed excitation linear prediction with fractional pitch | GRANT | 1997-12-16 | 1994-11-09 | 23316797 | Great | Texas Instruments Inc | Texas Instruments Inc |
| US20020097807A1 | 1.129 | Wideband signal transmission system | APPLICATION | 2002-07-25 | 2001-01-19 | 8179771 | Great | Koninklijke Philips NV | Koninklijke Philips NV |
| US5953697A | 1.128 | Gain estimation scheme for LPC vocoders with a shape index based on signal envelopes | GRANT | 1999-09-14 | 1996-12-19 | 21625621 | Great | Holtek Semiconductor Inc | Holtek Semiconductor Inc |
| EP1224662A1 | 1.128 | VARIABLE BIT-RATE CELP CODING OF SPEECH WITH PHONETIC CLASSIFICATION | GRANT | 2002-07-24 | 1999-10-19 | 23670498 | Great | Atmel Corp | Atmel Corp |
| EP1288915A2 | 1.119 | Method and system for waveform attenuation of error corrupted speech frames | GRANT | 2003-03-05 | 2001-08-17 | 27391677 | Great | Broadcom Corp | Broadcom Corp |
| US6493665B1 | 1.119 | Speech classification and parameter weighting used in codebook search | GRANT | 2002-12-10 | 1998-08-24 | 26793420 | Great | Lakestar Semi Inc | Hanger Solutions LLC |
| US6119082A | 1.118 | Speech coding system and method including harmonic generator having an adaptive phase off-setter | GRANT | 2000-09-12 | 1998-07-13 | 22356660 | Great | Lockheed Martin Corp | Lockheed Martin Corp |
| EP0342687A2 | 1.117 | Coded speech communication system having code books for synthesizing small-amplitude components | GRANT | 1989-11-23 | 1988-05-20 | 27314638 | Great | NEC Corp | NEC Corp |
| US6138092A | 1.116 | CELP speech synthesizer with epoch-adaptive harmonic generator for pitch harmonics below voicing cutoff frequency | GRANT | 2000-10-24 | 1998-07-13 | 22356644 | Great | Lockheed Martin Corp | Lockheed Martin Corp |
| EP1232494A1 | 1.115 | GAIN-SMOOTHING IN WIDEBAND SPEECH AND AUDIO SIGNAL DECODER | GRANT | 2002-08-21 | 1999-11-18 | 4164645 | Great | VoiceAge Corp | VoiceAge Corp |
| US6959274B1 | 1.115 | Fixed rate speech compression system and method | GRANT | 2005-10-25 | 1999-09-22 | 37833478 | Great | Mindspeed Technologies LLC | Digimedia Tech LLC |
| US5450449A | 1.114 | Linear prediction coefficient generation during frame erasure or packet loss | GRANT | 1995-09-12 | 1994-03-14 | 22791025 | Great | AT&T IPM Corp | AT&T Corp, Nokia of America Corp |
| US6604070B1 | 1.113 | System of encoding and decoding speech signals | GRANT | 2003-08-05 | 1999-09-22 | 56290058 | Great | Lakestar Semi Inc | MACOM Technology Solutions Holdings Inc |
| US5862518A | 1.113 | Speech decoder for decoding a speech signal using a bad frame masking unit for voiced frame and a bad frame masking unit for unvoiced frame | GRANT | 1999-01-19 | 1992-12-24 | 18363756 | Great | NEC Corp | NEC Corp |
| EP1328925A2 | 1.112 | METHOD AND APPARATUS FOR CODING OF UNVOICED SPEECH | GRANT | 2003-07-23 | 2000-10-17 | 24774477 | Great | Qualcomm Inc | Qualcomm Inc |
| US6067511A | 1.110 | LPC speech synthesis using harmonic excitation generator with phase modulator for voiced speech | GRANT | 2000-05-23 | 1998-07-13 | 22356651 | Great | Lockheed Martin Corp | Lockheed Martin Corp |
| US6081776A | 1.109 | Speech coding system and method including adaptive finite impulse response filter | GRANT | 2000-06-27 | 1998-07-13 | 22356622 | Great | Lockheed Martin Corp | Lockheed Martin Corp |
| EP1288916A2 | 1.108 | Method and system for frame erasure concealment for predictive speech coding based on extrapolation of speech waveform | GRANT | 2003-03-05 | 2001-08-17 | 27391707 | Great | Broadcom Corp | Broadcom Corp |
| EP1291851A2 | 1.108 | Method and System for a waveform attenuation technique of error corrupted speech frames | GRANT | 2003-03-12 | 2001-08-17 | 27391676 | Great | Broadcom Corp | Broadcom Corp |
| US7319703B2 | 1.108 | Method and apparatus for reducing synchronization delay in packet-based voice terminals by resynchronizing during talk spurts | GRANT | 2008-01-15 | 2001-09-04 | 26884745 | Great | Nokia Oyj | III Holdings 3 LLC |
| EP1141947A2 | 1.107 | VARIABLE RATE SPEECH CODING | GRANT | 2001-10-10 | 1998-12-21 | 22810659 | Great | Qualcomm Inc | Qualcomm Inc |
| US4797926A | 1.106 | Digital speech vocoder | GRANT | 1989-01-10 | 1986-09-11 | 25422593 | Great | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US6691092B1 | 1.105 | Voicing measure as an estimate of signal periodicity for a frequency domain interpolative speech codec system | GRANT | 2004-02-10 | 1999-04-05 | 30772455 | Great | Hughes Electronics Corp | JPMorgan Chase Bank NA, Hughes Network Systems LLC |
| US5598506A | 1.100 | Apparatus and a method for concealing transmission errors in a speech decoder | GRANT | 1997-01-28 | 1993-06-11 | 20390257 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US4771465A | 1.098 | Digital speech sinusoidal vocoder with transmission of only subset of harmonics | GRANT | 1988-09-13 | 1986-09-11 | 25422427 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US6691085B1 | 1.097 | Method and system for estimating artificial high band signal in speech codec using voice activity information | GRANT | 2004-02-10 | 2000-10-18 | 24776068 | Good | Nokia Mobile Phones Ltd | Nokia Technologies Oy |
| US6078880A | 1.096 | Speech coding system and method including voicing cut off frequency analyzer | GRANT | 2000-06-20 | 1998-07-13 | 22356634 | Good | Lockheed Martin Corp | Lockheed Martin Corp |
| US6772126B1 | 1.092 | Method and apparatus for transferring low bit rate digital voice messages using incremental messages | GRANT | 2004-08-03 | 1999-09-30 | 32771691 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US5926788A | 1.089 | Method and apparatus for reproducing speech signals and method for transmitting same | GRANT | 1999-07-20 | 1995-06-20 | 15568696 | Good | Sony Corp | Sony Corp |
| US6249758B1 | 1.088 | Apparatus and method for coding speech signals by making use of voice/unvoiced characteristics of the speech signals | GRANT | 2001-06-19 | 1998-06-30 | 22316378 | Good | Nortel Networks Ltd | Apple Inc |
| US6098036A | 1.088 | Speech coding system and method including spectral formant enhancer | GRANT | 2000-08-01 | 1998-07-13 | 22356667 | Good | Lockheed Martin Corp | III Holdings 1 LLC |
| US7330814B2 | 1.086 | Wideband speech coding with modulated noise highband excitation system and method | GRANT | 2008-02-12 | 2000-05-22 | 27394903 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6370500B1 | 1.085 | Method and apparatus for non-speech activity reduction of a low bit rate digital voice message | GRANT | 2002-04-09 | 1999-09-30 | 23619408 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US6094629A | 1.084 | Speech coding system and method including spectral quantizer | GRANT | 2000-07-25 | 1998-07-13 | 22356628 | Good | Lockheed Martin Corp | Lockheed Martin Corp |
| EP1158495A2 | 1.082 | Wideband speech coding system and method | GRANT | 2001-11-28 | 2000-05-22 | 22765216 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US5749065A | 1.080 | Speech encoding method speech decoding method and speech encoding/decoding method | GRANT | 1998-05-05 | 1994-08-30 | 16504431 | Good | Sony Corp | Sony Corp |
| US6507814B1 | 1.079 | Pitch determination using speech classification and prior pitch estimation | GRANT | 2003-01-14 | 1998-08-24 | 26793417 | Good | Lakestar Semi Inc | Samsung Electronics Co Ltd |
| US6581032B1 | 1.078 | Bitstream protocol for transmission of encoded voice signals | GRANT | 2003-06-17 | 1999-09-22 | 35150877 | Good | Lakestar Semi Inc | Quarterhill Inc, Mindspeed Technologies LLC |
| US6260010B1 | 1.077 | Speech encoder using gain normalization that combines open and closed loop gains | GRANT | 2001-07-10 | 1998-08-24 | 26793425 | Good | Lakestar Semi Inc | MACOM Technology Solutions Holdings Inc |
| US20030163304A1 | 1.075 | Error concealment for voice transmission system | APPLICATION | 2003-08-28 | 2002-02-28 | 27753969 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US6574593B1 | 1.074 | Codebook tables for encoding and decoding | GRANT | 2003-06-03 | 1999-09-22 | 56290057 | Good | Lakestar Semi Inc | Digimedia Tech LLC |
| EP1214706B1 | 1.074 | MULTIMODE SPEECH ENCODER | GRANT | 2004-08-04 | 1999-09-22 | 26852220 | Good | Lakestar Semi Inc | Mindspeed Technologies LLC |
| US6418405B1 | 1.073 | Method and apparatus for dynamic segmentation of a low bit rate digital voice message | GRANT | 2002-07-09 | 1999-09-30 | 23623402 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US6985857B2 | 1.072 | Method and apparatus for speech coding using training and quantizing | GRANT | 2006-01-10 | 2001-09-27 | 25509924 | Good | Motorola Solutions Inc | Google Technology Holdings LLC |
| EP1431962A2 | 1.071 | Wideband speech coding system and method | GRANT | 2004-06-23 | 2000-05-22 | 32395343 | Good | Texas Instruments Inc | Texas Instruments Inc |
| WO1994029849A1 | 1.070 | REJECTED FRAME CONCEALMENT | APPLICATION | 1994-12-22 | 1993-06-11 | 27355718 | Good | ||
| EP1207519A1 | 1.069 | AUDIO DECODER AND CODING ERROR COMPENSATING METHOD | GRANT | 2002-05-22 | 1999-06-30 | 16175542 | Good | Panasonic Corp, NEC Corp | Panasonic Corp, NEC Corp |
| US6324505B1 | 1.068 | Amplitude quantization scheme for low-bit-rate speech coders | GRANT | 2001-11-27 | 1999-07-19 | 23402824 | Good | Qualcomm Inc | Qualcomm Inc |
| EP1061503B1 | 1.068 | Error detection and error concealment for encoded speech data | GRANT | 2006-03-15 | 1999-06-17 | 15907371 | Good | Sony Corp | Sony Corp |
| EP1145228A1 | 1.067 | PERIODIC SPEECH CODING | GRANT | 2001-10-17 | 1998-12-21 | 22811325 | Good | Qualcomm Inc | Qualcomm Inc |
| US5699478A | 1.066 | Frame erasure compensation technique | GRANT | 1997-12-16 | 1995-03-10 | 23589438 | Good | Nokia of America Corp | Nokia of America Corp |
| EP1105870A1 | 1.065 | SPEECH ENCODER ADAPTIVELY APPLYING PITCH PREPROCESSING WITH CONTINUOUS WARPING | GRANT | 2001-06-13 | 1998-08-24 | 26793419 | Good | Lakestar Semi Inc | Mindspeed Technologies LLC |
| EP1273005A1 | 1.065 | WIDEBAND SPEECH CODEC USING DIFFERENT SAMPLING RATES | GRANT | 2003-01-08 | 2000-02-16 | 24010193 | Good | Nokia Oyj | Nokia Oyj |
| US4618982A | 1.061 | Digital speech processing system having reduced encoding bit requirements | GRANT | 1986-10-21 | 1981-09-24 | 4305342 | Good | Gretag AG | OMNISEC AG TROCKENLOOSTRASSE 91 CH-8105 REGENSDORF SWITZERLAND A Co OF SWITZERLAND |
| US5867814A | 1.061 | Speech coder that utilizes correlation maximization to achieve fast excitation coding and associated coding method | GRANT | 1999-02-02 | 1995-11-17 | 24236294 | Good | National Semiconductor Corp | National Semiconductor Corp |
| EP1194924A1 | 1.060 | ADAPTIVE TILT COMPENSATION FOR SYNTHESIZED SPEECH RESIDUAL | GRANT | 2002-04-10 | 1998-08-24 | 26793427 | Good | Lakestar Semi Inc | Mindspeed Technologies LLC |
| US6418407B1 | 1.059 | Method and apparatus for pitch determination of a low bit rate digital voice message | GRANT | 2002-07-09 | 1999-09-30 | 23622835 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US6963833B1 | 1.059 | Modifications in the multi-band excitation (MBE) model for generating high quality speech at low bit rates | GRANT | 2005-11-08 | 1999-10-26 | 35207093 | Good | Sasken Communication Technologies Ltd | Sasken Communication Technologies Ltd, Nytell Software LLC |
| US6389006B1 | 1.054 | Systems and methods for encoding and decoding speech for lossy transmission networks | GRANT | 2002-05-14 | 1997-05-06 | 11070103 | Good | AudioCodes Ltd | AudioCodes Ltd |
| US6047253A | 1.054 | Method and apparatus for encoding/decoding voiced speech based on pitch intensity of input speech signal | GRANT | 2000-04-04 | 1996-09-20 | 17211203 | Good | Sony Corp | Sony Corp |
| EP1338003A1 | 1.052 | GAINS QUANTIZATION FOR A CELP SPEECH CODER | GRANT | 2003-08-27 | 2000-05-19 | 24295936 | Good | Lakestar Semi Inc | Mindspeed Technologies LLC |
| US6438517B1 | 1.051 | Multi-stage pitch and mixed voicing estimation for harmonic speech coders | GRANT | 2002-08-20 | 1998-05-19 | 22163979 | Good | Texas Instruments Inc | Texas Instruments Inc |
| WO2000011649A1 | 1.049 | SPEECH ENCODER USING A CLASSIFIER FOR SMOOTHING NOISE CODING | APPLICATION | 2000-03-02 | 1998-08-24 | 26793418 | Good | ||
| EP1105871A1 | 1.047 | LOW COMPLEXITY RANDOM CODEBOOK STRUCTURE | GRANT | 2001-06-13 | 1998-08-24 | 26793423 | Good | Lakestar Semi Inc | Mindspeed Technologies LLC |
| EP1125284A1 | 1.046 | HIGH FREQUENCY CONTENT RECOVERING METHOD AND DEVICE FOR OVER-SAMPLED SYNTHESIZED WIDEBAND SIGNAL | GRANT | 2001-08-22 | 1998-10-27 | 4162966 | Good | VoiceAge Corp | VoiceAge Corp |
| EP0770988A2 | 1.045 | Speech decoding method and portable terminal apparatus | GRANT | 1997-05-02 | 1995-10-26 | 26553357 | Good | Sony Corp | Sony Corp |
| US6687667B1 | 1.042 | Method for quantizing speech coder parameters | GRANT | 2004-02-03 | 1998-10-06 | 9531246 | Good | Thomson CSF SA | Thales SA |
| US7295974B1 | 1.041 | Encoding in speech compression | GRANT | 2007-11-13 | 1999-03-12 | 38664678 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6393394B1 | 1.041 | Method and apparatus for interleaving line spectral information quantization methods in a speech coder | GRANT | 2002-05-21 | 1999-07-19 | 23402819 | Good | Qualcomm Inc | Qualcomm Inc |
| US5574823A | 1.040 | Frequency selective harmonic coding | GRANT | 1996-11-12 | 1993-06-23 | 25676333 | Good | Canada Minister of Communications | Canada Minister of Communications |
| US6496797B1 | 1.039 | Apparatus and method of speech coding and decoding using multiple frames | GRANT | 2002-12-17 | 1999-04-01 | 23086698 | Good | LG Electronics Inc | LG Electronics Inc |
| US6862567B1 | 1.037 | Noise suppression in the frequency domain by adjusting gain according to voicing parameters | GRANT | 2005-03-01 | 2000-08-30 | 34194668 | Good | Mindspeed Technologies LLC | MACOM Technology Solutions Holdings Inc, WIAV Solutions LLC |
| US6240386B1 | 1.035 | Speech codec employing noise classification for noise compensation | GRANT | 2001-05-29 | 1998-08-24 | 27536839 | Good | Lakestar Semi Inc | MACOM Technology Solutions Holdings Inc |
| EP1035538B1 | 1.032 | Multimode quantizing of the prediction residual in a speech coder | GRANT | 2005-07-27 | 1999-03-12 | 26822196 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6456965B1 | 1.030 | Multi-stage pitch and mixed voicing estimation for harmonic speech coders | GRANT | 2002-09-24 | 1997-05-20 | 26724716 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6968309B1 | 1.029 | Method and system for speech frame error concealment in speech decoding | GRANT | 2005-11-22 | 2000-10-31 | 24821628 | Good | Nokia Mobile Phones Ltd | Nokia Technologies Oy |
| US7136810B2 | 1.029 | Wideband speech coding system and method | GRANT | 2006-11-14 | 2000-05-22 | 27498601 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US4815134A | 1.028 | Very low rate speech encoder and decoder | GRANT | 1989-03-21 | 1987-09-08 | 22243528 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US7478042B2 | 1.028 | Speech decoder that detects stationary noise signal regions | GRANT | 2009-01-13 | 2000-11-30 | 18836986 | Good | Panasonic Corp | Panasonic Corp, Nippon Telegraph and Telephone Corp |
| US5911128A | 1.027 | Method and apparatus for performing speech frame encoding mode selection in a variable rate encoding system | GRANT | 1999-06-08 | 1994-08-05 | 23100400 | Good | ||
| US7110947B2 | 1.027 | Frame erasure concealment technique for a bitstream-based feature extractor | GRANT | 2006-09-19 | 1999-12-10 | 26865789 | Good | AT&T Corp | Nuance Communications Inc |
| US5664055A | 1.026 | CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity | GRANT | 1997-09-02 | 1995-06-07 | 23917151 | Good | Nokia of America Corp | BlackBerry Ltd |
| EP0852376A2 | 1.024 | Improved multimodal code-excited linear prediction (CELP) coder and method | GRANT | 1998-07-08 | 1997-01-02 | 21876667 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6199037B1 | 1.019 | Joint quantization of speech subframe voicing metrics and fundamental frequencies | GRANT | 2001-03-06 | 1997-12-04 | 25531324 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| US6466904B1 | 1.017 | Method and apparatus using harmonic modeling in an improved speech decoder | GRANT | 2002-10-15 | 2000-07-25 | 24501018 | Good | Lakestar Semi Inc | WIAV Solutions LLC |
| EP0573398A2 | 1.017 | C.E.L.P. Vocoder | GRANT | 1993-12-08 | 1992-06-01 | 27128985 | Good | Hughes Aircraft Co | DirecTV Group Inc |
| US6449590B1 | 1.013 | Speech encoder using warping in long term preprocessing | GRANT | 2002-09-10 | 1998-08-24 | 26793422 | Good | Lakestar Semi Inc | Samsung Electronics Co Ltd |
| US20040199383A1 | 1.013 | Speech encoder speech decoder speech endoding method and speech decoding method | APPLICATION | 2004-10-07 | 2001-11-16 | 19164065 | Good | Panasonic Corp | Panasonic Corp |
| US5774837A | 1.012 | Speech coding system and method using voicing probability determination | GRANT | 1998-06-30 | 1995-09-13 | 24105985 | Good | Voxware Inc | Voxware Inc |
| US6978235B1 | 1.010 | Speech coding apparatus and speech decoding apparatus | GRANT | 2005-12-20 | 1998-05-11 | 15377091 | Good | NEC Corp | NEC Corp |
| US5960389A | 1.010 | Methods for generating comfort noise during discontinuous transmission | GRANT | 1999-09-28 | 1996-11-15 | 27363777 | Good | Nokia Mobile Phones Ltd | Nokia Technologies Oy |
| US6161089A | 1.009 | Multi-subframe quantization of spectral parameters | GRANT | 2000-12-12 | 1997-03-14 | 25224750 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| US6167375A | 1.009 | Method for encoding and decoding a speech signal including background noise | GRANT | 2000-12-26 | 1997-03-17 | 27464320 | Good | Toshiba Corp | Toshiba Corp |
| US5754974A | 1.008 | Spectral magnitude representation for multi-band excitation speech coders | GRANT | 1998-05-19 | 1995-02-22 | 23549623 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| US7020605B2 | 1.008 | Speech coding system with time-domain noise attenuation | GRANT | 2006-03-28 | 2000-09-15 | 26926497 | Good | Mindspeed Technologies LLC | MACOM Technology Solutions Holdings Inc, WIAV Solutions LLC |
| US7430507B2 | 1.007 | Frequency domain format enhancement | GRANT | 2008-09-30 | 2001-04-02 | 25236208 | Good | General Electric Co | General Electric Co |
| US5907822A | 1.006 | Loss tolerant speech decoder for telecommunications | GRANT | 1999-05-25 | 1997-04-04 | 25263990 | Good | Lincom Corp | Engility LLC |
| US7606703B2 | 1.004 | Layered celp system and method with varying perceptual filter or short-term postfilter strengths | GRANT | 2009-10-20 | 2000-11-15 | 26733250 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6910009B1 | 1.003 | Speech signal decoding method and apparatus speech signal encoding/decoding method and apparatus and program product therefor | GRANT | 2005-06-21 | 1999-11-01 | 18019455 | Good | NEC Corp | NEC Corp |
| EP1397655A1 | 1.003 | METHOD AND DEVICE FOR CODING SPEECH IN ANALYSIS-BY-SYNTHESIS SPEECH CODERS | GRANT | 2004-03-17 | 2001-06-21 | 8561469 | Good | Nokia Oyj | Nokia Oyj |
| US7117146B2 | 1.002 | System for improved use of pitch enhancement with subcodebooks | GRANT | 2006-10-03 | 1998-08-24 | 27580971 | Good | Mindspeed Technologies LLC | Samsung Electronics Co Ltd |
| EP0833305A2 | 1.001 | Low bit-rate pitch lag coder | GRANT | 1998-04-01 | 1996-09-26 | 24897881 | Good | Rockwell International Corp | Boeing North American Inc |
| US6173257B1 | 1.000 | Completed fixed codebook for speech encoder | GRANT | 2001-01-09 | 1998-08-24 | 26793426 | Good | Lakestar Semi Inc | HTC Corp, WIAV Solutions LLC |
| US6983242B1 | 0.999 | Method for robust classification in speech coding | GRANT | 2006-01-03 | 2000-08-21 | 24579015 | Good | Mindspeed Technologies LLC | WIAV Solutions LLC |
| US6850884B2 | 0.995 | Selection of coding parameters based on spectral content of a speech signal | GRANT | 2005-02-01 | 2000-09-15 | 26926583 | Good | Mindspeed Technologies LLC | HTC Corp, WIAV Solutions LLC |
| US6415252B1 | 0.995 | Method and apparatus for coding and decoding speech | GRANT | 2002-07-02 | 1998-05-28 | 22198309 | Good | Motorola Solutions Inc | Google Technology Holdings LLC |
| US6842733B1 | 0.995 | Signal processing system for filtering spectral content of a signal for speech coding | GRANT | 2005-01-11 | 2000-09-15 | 26926582 | Good | Mindspeed Technologies LLC | HTC Corp, Mindspeed Technologies LLC |
| US5787387A | 0.992 | Harmonic adaptive speech coding method and system | GRANT | 1998-07-28 | 1994-07-11 | 23042415 | Good | Voxware Inc | Google LLC |
| EP1018726A2 | 0.992 | Method and apparatus for reconstructing a linear prediction filter excitation signal | GRANT | 2000-07-12 | 1999-01-05 | 22850961 | Good | Motorola Solutions Inc | NXP USA Inc |
| US5701390A | 0.990 | Synthesis of MBE-based coded speech using regenerated phase information | GRANT | 1997-12-23 | 1995-02-22 | 23549243 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| US6556966B1 | 0.990 | Codebook structure for changeable pulse multimode speech coding | GRANT | 2003-04-29 | 1998-08-24 | 24660996 | Good | Lakestar Semi Inc | HTC Corp, WIAV Solutions LLC |
| US6937979B2 | 0.987 | Coding based on spectral content of a speech signal | GRANT | 2005-08-30 | 2000-09-15 | 25406622 | Good | Mindspeed Technologies LLC | MACOM Technology Solutions Holdings Inc, WIAV Solutions LLC |
| EP1001541A1 | 0.986 | SOUND DECODER AND SOUND DECODING METHOD | GRANT | 2000-05-17 | 1998-05-27 | 15402266 | Good | Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc | Nippon Telegraph and Telephone Corp, NTT Docomo Inc |
| US5680508A | 0.985 | Enhancement of speech coding in background noise for low-rate speech coder | GRANT | 1997-10-21 | 1991-05-03 | 24793564 | Good | ITT Corp | Exelis Inc |
| US6691082B1 | 0.983 | Method and system for sub-band hybrid coding | GRANT | 2004-02-10 | 1999-08-03 | 30772477 | Good | Nokia of America Corp | Nokia of America Corp |
| US5909663A | 0.982 | Speech decoding method and apparatus for selecting random noise codevectors as excitation signals for an unvoiced speech frame | GRANT | 1999-06-01 | 1996-09-18 | 17152013 | Good | Sony Corp | Sony Corp |
| US4589131A | 0.981 | Voiced/unvoiced decision using sequential decisions | GRANT | 1986-05-13 | 1981-09-24 | 4305323 | Good | Gretag AG | OMNISEC AG TROCKENLOOSTRASSE 91 CH-8105 REGENSDORF SWITZERLAND A Co OF SWITZERLAND |
| US6330532B1 | 0.981 | Method and apparatus for maintaining a target bit rate in a speech coder | GRANT | 2001-12-11 | 1999-07-19 | 23401670 | Good | Qualcomm Inc | Qualcomm Inc |
| US7024354B2 | 0.979 | Speech decoder capable of decoding background noise signal with high quality | GRANT | 2006-04-04 | 2000-11-06 | 18813128 | Good | NEC Corp | NEC Corp |
| US5293449A | 0.979 | Analysis-by-synthesis 2 4 kbps linear predictive speech codec | GRANT | 1994-03-08 | 1990-11-23 | 27087999 | Good | Comsat Corp | Comsat Corp |
| EP1281172A2 | 0.978 | METHOD AND APPARATUS FOR COMPRESSION OF SPEECH ENCODED PARAMETERS | GRANT | 2003-02-05 | 2000-02-10 | 26877230 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| EP0770990A2 | 0.978 | Speech encoding method and apparatus and speech decoding method and apparatus | GRANT | 1997-05-02 | 1995-10-26 | 17905273 | Good | Sony Corp | Sony Corp |
| US6055496A | 0.977 | Vector quantization in celp speech coder | GRANT | 2000-04-25 | 1997-03-19 | 26708123 | Good | Nokia Mobile Phones Ltd | Qualcomm Inc |
| EP1328924A1 | 0.976 | MULTIMODE SPEECH CODER | GRANT | 2003-07-23 | 2000-09-15 | 24660098 | Good | Lakestar Semi Inc | Mindspeed Technologies LLC |
| US6714907B2 | 0.976 | Codebook structure and search for speech coding | GRANT | 2004-03-30 | 1998-08-24 | 25135245 | Good | Mindspeed Technologies LLC | HTC Corp, WIAV Solutions LLC |
| US7272554B2 | 0.971 | Reduction of speech quality degradation caused by packet loss | GRANT | 2007-09-18 | 2002-04-19 | 29207814 | Good | NEC Corp | NEC Corp |
| US4667340A | 0.970 | Voice messaging system with pitch-congruent baseband coding | GRANT | 1987-05-19 | 1983-04-13 | 23925323 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US7680669B2 | 0.967 | Sound encoding apparatus and method and sound decoding apparatus and method | GRANT | 2010-03-16 | 2001-03-07 | 18922634 | Good | NEC Corp | NEC Corp |
| US6732075B1 | 0.966 | Sound synthesizing apparatus and method telephone apparatus and program service medium | GRANT | 2004-05-04 | 1999-04-22 | 14662017 | Good | Sony Corp | Sony Corp |
| US7010480B2 | 0.966 | Controlling a weighting filter based on the spectral content of a speech signal | GRANT | 2006-03-07 | 2000-09-15 | 25494046 | Good | Mindspeed Technologies LLC | MACOM Technology Solutions Holdings Inc, WIAV Solutions LLC |
| US6104992A | 0.964 | Adaptive gain reduction to produce fixed codebook target signal | GRANT | 2000-08-15 | 1998-08-24 | 26793421 | Good | Lakestar Semi Inc | Hanger Solutions LLC |
| US5778335A | 0.963 | Method and apparatus for efficient multiband celp wideband speech and music coding and decoding | GRANT | 1998-07-07 | 1996-02-26 | 24423961 | Good | University of California | University of California |
| US4731846A | 0.962 | Voice messaging system with pitch tracking based on adaptively filtered LPC residual signal | GRANT | 1988-03-15 | 1983-04-13 | 23925280 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US4561102A | 0.961 | Pitch detector for speech analysis | GRANT | 1985-12-24 | 1982-09-20 | 23665630 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US4879748A | 0.960 | Parallel processing pitch detector | GRANT | 1989-11-07 | 1985-08-28 | 25089225 | Good | American Telephone and Telegraph Co Inc, AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US20020169859A1 | 0.956 | Voice decode apparatus with packet error resistance voice encoding decode apparatus and method thereof | APPLICATION | 2002-11-14 | 2001-03-13 | 18927781 | Good | NEC Corp | NEC Corp |
| US5307441A | 0.955 | Wear-toll quality 4.8 kbps speech codec | GRANT | 1994-04-26 | 1989-11-29 | 23758326 | Good | Comsat Corp | Comsat Corp |
| EP0127729A1 | 0.955 | Voice messaging system with unified pitch and voice tracking | GRANT | 1984-12-12 | 1983-04-13 | 23925314 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US5265167A | 0.955 | Speech coding and decoding apparatus | GRANT | 1993-11-23 | 1989-04-25 | 26363533 | Good | Toshiba Corp | Toshiba Corp |
| US20030163318A1 | 0.954 | Compression/decompression technique for speech synthesis | APPLICATION | 2003-08-28 | 2002-02-28 | 27750906 | Good | NEC Corp | NEC Corp |
| US6801887B1 | 0.953 | Speech coding exploiting the power ratio of different speech signal components | GRANT | 2004-10-05 | 2000-09-20 | 24676290 | Good | Nokia Mobile Phones Ltd | Nokia Mobile Phones Ltd |
| US5826222A | 0.952 | Estimation of excitation parameters | GRANT | 1998-10-20 | 1995-01-12 | 23465238 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| US6226604B1 | 0.951 | Voice encoder voice decoder recording medium on which program for realizing voice encoding/decoding is recorded and mobile communication apparatus | GRANT | 2001-05-01 | 1996-08-02 | 26375818 | Good | Panasonic Corp | III Holdings 12 LLC |
| US6073092A | 0.951 | Method for speech coding based on a code excited linear prediction (CELP) model | GRANT | 2000-06-06 | 1997-06-26 | 25381822 | Good | Telogy Networks Inc | Google Technology Holdings LLC |
| US6269332B1 | 0.950 | Method of encoding a speech signal | GRANT | 2001-07-31 | 1997-09-30 | 20429572 | Good | Siemens AG | Siemens AG, Intel Germany Holding GmbH |
| US6804639B1 | 0.948 | Celp voice encoder | GRANT | 2004-10-12 | 1998-10-27 | 17948780 | Good | Panasonic Corp | III Holdings 12 LLC |
| WO1998052187A1 | 0.944 | AUDIO CODING SYSTEMS AND METHODS | APPLICATION | 1998-11-19 | 1997-05-15 | 8229331 | Good | ||
| WO2002023533A2 | 0.940 | SYSTEM FOR IMPROVED USE OF PITCH ENHANCEMENT WITH SUBCODEBOOKS | APPLICATION | 2002-03-21 | 2000-09-15 | 22875191 | Good | ||
| US7272556B1 | 0.940 | Scalable and embedded codec for speech and audio signals | GRANT | 2007-09-18 | 1998-09-23 | 38481871 | Good | Nokia of America Corp | Alcatel Lucent SAS, Nokia of America Corp, Voxware Inc |
| US5504834A | 0.939 | Pitch epoch synchronous linear predictive coding vocoder and method | GRANT | 1996-04-02 | 1993-05-28 | 22081837 | Good | Motorola Solutions Inc | General Dynamics C4 Systems Inc |
| EP0950238B1 | 0.939 | SPEECH CODING AND DECODING SYSTEM | GRANT | 2003-09-10 | 1996-07-05 | 26309651 | Good | Victoria University of Manchester, University of Manchester | Victoria University of Manchester, University of Manchester |
| US5884253A | 0.938 | Prototype waveform speech coding with interpolation of pitch pitch-period waveforms and synthesis filter | GRANT | 1999-03-16 | 1992-04-09 | 27497370 | Good | Nokia of America Corp | Nokia of America Corp |
| EP1354315A1 | 0.938 | INDEXING PULSE POSITIONS AND SIGNS IN ALGEBRAIC CODEBOOKS FOR CODING OF WIDEBAND SIGNALS | GRANT | 2003-10-22 | 2000-11-22 | 4167763 | Good | VoiceAge Corp | VoiceAge Corp |
| US5950155A | 0.938 | Apparatus and method for speech encoding based on short-term prediction valves | GRANT | 1999-09-07 | 1994-12-21 | 18101922 | Good | Sony Corp | Sony Corp |
| EP0718822A2 | 0.938 | A low rate multi-mode CELP CODEC that uses backward prediction | GRANT | 1996-06-26 | 1994-12-19 | 23412383 | Good | Hughes Aircraft Co | DirecTV Group Inc |
| US7257535B2 | 0.938 | Parametric speech codec for representing synthetic speech in the presence of background noise | GRANT | 2007-08-14 | 1999-07-26 | 36781871 | Good | Nokia of America Corp | Nokia of America Corp |
| US6996522B2 | 0.938 | Celp-Based speech coding for fine grain scalability by altering sub-frame pitch-pulse | GRANT | 2006-02-07 | 2001-03-13 | 31715413 | Good | Industrial Technology Research Institute ITRI | Industrial Technology Research Institute ITRI |
| US5054072A | 0.937 | Coding of acoustic waveforms | GRANT | 1991-10-01 | 1987-04-02 | 26710548 | Good | Massachusetts Institute of Technology | Massachusetts Institute of Technology |
| US5933803A | 0.936 | Speech encoding at variable bit rate | GRANT | 1999-08-03 | 1996-12-12 | 8547256 | Good | Nokia Mobile Phones Ltd | Nokia Mobile Phones Ltd |
| US6754630B2 | 0.931 | Synthesis of speech from pitch prototype waveforms by time-synchronous waveform interpolation | GRANT | 2004-06-22 | 1998-11-13 | 22706259 | Good | Qualcomm Inc | Qualcomm Inc |
| US6199035B1 | 0.931 | Pitch-lag estimation in speech coding | GRANT | 2001-03-06 | 1997-05-07 | 26160386 | Good | Nokia Mobile Phones Ltd | Nokia Technologies Oy |
| US5806024A | 0.929 | Coding of a speech or music signal with quantization of harmonics components specifically and then residue components | GRANT | 1998-09-08 | 1995-12-23 | 18408488 | Good | NEC Corp | NEC Corp |
| US6526376B1 | 0.927 | Split band linear prediction vocoder with pitch extraction | GRANT | 2003-02-25 | 1998-05-21 | 10832524 | Good | University of Surrey | University of Surrey |
| US7742917B2 | 0.925 | Method and apparatus for speech encoding by evaluating a noise level based on pitch information | GRANT | 2010-06-22 | 1997-12-24 | 18439687 | Good | Mitsubishi Electric Corp | BlackBerry Ltd |
| EP1184842A2 | 0.923 | Relative pulse position in CELP vocoding | GRANT | 2002-03-06 | 2000-08-07 | 24539732 | Good | Nokia of America Corp | Nokia of America Corp |
| US6470313B1 | 0.923 | Speech coding | GRANT | 2002-10-22 | 1998-03-09 | 8551196 | Good | Nokia Mobile Phones Ltd | Nokia Technologies Oy |
| US6829579B2 | 0.920 | Transcoding method and system between CELP-based speech codes | GRANT | 2004-12-07 | 2002-01-08 | 28047009 | Good | Dilithium Networks Inc | DILITHIUM (ASSIGNMENT FOR BENEFIT OF CREDITORS) LLC, Onmobile Global Ltd, Dilithium Networks Inc |
| WO2003010752A1 | 0.916 | SPEECH BANDWIDTH EXTENSION APPARATUS AND SPEECH BANDWIDTH EXTENSION METHOD | APPLICATION | 2003-02-06 | 2001-07-26 | 19059514 | Good | ||
| US5255339A | 0.916 | Low bit rate vocoder means and method | GRANT | 1993-10-19 | 1991-07-19 | 24945695 | Good | Motorola Solutions Inc | CDC Propriete Intellectuelle |
| US6665637B2 | 0.913 | Error concealment in relation to decoding of encoded acoustic signals | GRANT | 2003-12-16 | 2000-10-20 | 8175679 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| EP0459358A2 | 0.911 | Speech decoder | GRANT | 1991-12-04 | 1990-05-28 | 15147851 | Good | NEC Corp | NEC Corp |
| EP1208413A2 | 0.911 | CODED DOMAIN NOISE CONTROL | GRANT | 2002-05-29 | 1999-07-02 | 22498680 | Good | Tellabs Operations Inc | Coriant Operations Inc |
| US5179626A | 0.906 | HARMONIC SPEECH CODING ARRANGEMENT WHERE A SET OF PARAMETERS FOR A CONTINUOUS MAGNITUDE SPECTRUM IS DETERMINED BY A SPEECH ANALYZER AND THE PARAMETERS ARE USED BY A SYNTHESIZER TO DETERMINE A SPECTRUM WHICH IS USED TO DETERMINE SENUSOIDS FOR SYNTHESIS | GRANT | 1993-01-12 | 1988-04-08 | 22655511 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US5502713A | 0.905 | Soft error concealment in a TDMA radio system | GRANT | 1996-03-26 | 1993-12-07 | 22586362 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US6594626B2 | 0.905 | Voice encoding and voice decoding using an adaptive codebook and an algebraic codebook | GRANT | 2003-07-15 | 1999-09-14 | 14236705 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US6243672B1 | 0.903 | Speech encoding/decoding method and apparatus using a pitch reliability measure | GRANT | 2001-06-05 | 1996-09-27 | 17302125 | Good | Sony Corp | Sony Corp |
| US5247579A | 0.903 | Methods for speech transmission | GRANT | 1993-09-21 | 1990-12-05 | 27089784 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| US6385576B2 | 0.903 | Speech encoding/decoding method using reduced subframe pulse positions having density related to pitch | GRANT | 2002-05-07 | 1997-12-24 | 18445568 | Good | Toshiba Corp | Toshiba Corp |
| EP0704088A1 | 0.902 | METHOD OF ENCODING A SIGNAL CONTAINING SPEECH | GRANT | 1996-04-03 | 1994-04-15 | 26921843 | Good | Hughes Aircraft Co, HE Holdings Inc | DirecTV Group Inc |
| US6581031B1 | 0.900 | Speech encoding method and speech encoding system | GRANT | 2003-06-17 | 1998-11-27 | 18312144 | Good | NEC Corp | NEC Corp |
| USRE43570E1 | 0.896 | Method and apparatus for improved weighting filters in a CELP encoder | GRANT | 2012-08-07 | 2000-07-25 | 35998889 | Good | Mindspeed Technologies LLC | MACOM Technology Solutions Holdings Inc |
| US6161091A | 0.895 | Speech recognition-synthesis based encoding/decoding method and speech encoding/decoding system | GRANT | 2000-12-12 | 1997-03-18 | 13272339 | Good | Toshiba Corp | Toshiba Corp |
| US6738739B2 | 0.895 | Voiced speech preprocessing employing waveform interpolation or a harmonic model | GRANT | 2004-05-18 | 2001-02-15 | 25132214 | Good | Mindspeed Technologies LLC | MACOM Technology Solutions Holdings Inc, WIAV Solutions LLC |
| EP1464047A2 | 0.890 | A TRANSCODING SCHEME BETWEEN CELP-BASED SPEECH CODES | GRANT | 2004-10-06 | 2002-01-08 | 23363030 | Good | Dilithium Networks Pty Ltd | Dilithium Networks Pty Ltd |
| US7577567B2 | 0.889 | Multimode speech coding apparatus and decoding apparatus | GRANT | 2009-08-18 | 2000-01-11 | 18531921 | Good | Panasonic Corp | III Holdings 12 LLC |
| EP0532225A2 | 0.889 | Method and apparatus for speech coding and decoding | GRANT | 1993-03-17 | 1991-09-10 | 25046668 | Good | American Telephone and Telegraph Co Inc, AT&T Corp | AT&T Corp |
| US5717819A | 0.884 | Methods and apparatus for encoding/decoding speech signals at low bit rates | GRANT | 1998-02-10 | 1995-04-28 | 23709897 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US6188981B1 | 0.884 | Method and apparatus for detecting voice activity in a speech signal | GRANT | 2001-02-13 | 1998-09-18 | 22559485 | Good | Lakestar Semi Inc | HTC Corp, WIAV Solutions LLC |
| US7039584B2 | 0.883 | Method for the encoding of prosody for a speech encoder working at very low bit rates | GRANT | 2006-05-02 | 2000-10-18 | 8855687 | Good | Thales SA | Thales SA |
| US5899967A | 0.882 | Speech decoding device to update the synthesis postfilter and prefilter during unvoiced speech or noise | GRANT | 1999-05-04 | 1996-03-27 | 13479340 | Good | NEC Corp | NEC Corp |
| US6122607A | 0.880 | Method and arrangement for reconstruction of a received speech signal | GRANT | 2000-09-19 | 1996-04-10 | 20402131 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US6470308B1 | 0.879 | Human speech processing apparatus for detecting instants of glottal closure | GRANT | 2002-10-22 | 1991-09-20 | 8207888 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US5517511A | 0.877 | Digital transmission of acoustic signals over a noisy communication channel | GRANT | 1996-05-14 | 1992-11-30 | 25529664 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| US5668925A | 0.874 | Low data rate speech encoder with mixed excitation | GRANT | 1997-09-16 | 1995-06-01 | 23915607 | Good | Martin Marietta Corp | RETRO REFLECTIVE OPTICS |
| US7680653B2 | 0.872 | Background noise reduction in sinusoidal based speech coding systems | GRANT | 2010-03-16 | 2000-02-11 | 22665558 | Good | Comsat Corp | Comsat Corp |
| EP1083546A2 | 0.872 | Speech coding method using linear prediction and algebraic code excitation | GRANT | 2001-03-14 | 1999-09-07 | 17243223 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US6055497A | 0.871 | System arrangement and method for replacing corrupted speech frames and a telecommunications system comprising such arrangement | GRANT | 2000-04-25 | 1995-03-10 | 20397500 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US6925435B1 | 0.871 | Method and apparatus for improved noise reduction in a speech encoder | GRANT | 2005-08-02 | 2000-11-27 | 24906993 | Good | Mindspeed Technologies LLC | MACOM Technology Solutions Holdings Inc, WIAV Solutions LLC |
| US6885988B2 | 0.869 | Bit error concealment methods for speech coding | GRANT | 2005-04-26 | 2001-08-17 | 26978541 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| EP0588932A1 | 0.867 | VARIABLE RATE VOCODER | GRANT | 1994-03-30 | 1991-06-11 | 24866989 | Good | Qualcomm Inc | Qualcomm Inc |
| US6584441B1 | 0.866 | Adaptive postfilter | GRANT | 2003-06-24 | 1998-01-21 | 8550488 | Good | Nokia Mobile Phones Ltd | Provenance Asset Group LLC, Nokia USA Inc |
| US6003001A | 0.866 | Speech encoding method and apparatus | GRANT | 1999-12-14 | 1996-07-09 | 16061307 | Good | Sony Corp | Sony Corp |
| US7289953B2 | 0.864 | Apparatus and method for speech coding | GRANT | 2007-10-30 | 1999-08-23 | 27332220 | Good | Panasonic Corp | III Holdings 12 LLC |
| US5966688A | 0.863 | Speech mode based multi-stage vector quantizer | GRANT | 1999-10-12 | 1997-10-28 | 25500643 | Good | Hughes Electronics Corp | JPMorgan Chase Bank NA, Hughes Network Systems LLC |
| US4710959A | 0.862 | Voice encoder and synthesizer | GRANT | 1987-12-01 | 1982-04-29 | 22167955 | Good | Massachusetts Institute of Technology | Massachusetts Institute of Technology |
| US5251261A | 0.861 | Device for the digital recording and reproduction of speech signals | GRANT | 1993-10-05 | 1990-06-15 | 6854678 | Good | US Philips Corp | US Philips Corp |
| US5966689A | 0.859 | Adaptive filter and filtering method for low bit rate coding | GRANT | 1999-10-12 | 1996-06-19 | 21798075 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6134518A | 0.858 | Digital audio signal coding using a CELP coder and a transform coder | GRANT | 2000-10-17 | 1997-03-04 | 8230016 | Good | International Business Machines Corp | Cisco Technology Inc |
| US6240383B1 | 0.857 | Celp speech coding and decoding system for creating comfort noise dependent on the spectral envelope of the speech signal | GRANT | 2001-05-29 | 1997-07-25 | 16417038 | Good | NEC Corp | NEC Corp |
| US20060206317A1 | 0.855 | Speech coding apparatus and speech decoding apparatus | APPLICATION | 2006-09-14 | 1998-06-09 | 26486711 | Good | Panasonic Corp | III Holdings 12 LLC |
| US5455888A | 0.853 | Speech bandwidth extension method and apparatus | GRANT | 1995-10-03 | 1992-12-04 | 25531476 | Good | Northern Telecom Ltd | Nortel Networks Ltd |
| US6266632B1 | 0.848 | Speech decoding apparatus and speech decoding method using energy of excitation parameter | GRANT | 2001-07-24 | 1998-03-16 | 13935580 | Good | Matsushita Graphic Communication Systems Inc | Panasonic System Solutions Japan Co Ltd |
| US6856955B1 | 0.848 | Voice encoding/decoding device | GRANT | 2005-02-15 | 1998-07-13 | 16369673 | Good | NEC Corp | NEC Corp |
| US6470311B1 | 0.847 | Method and apparatus for determining pitch synchronous frames | GRANT | 2002-10-22 | 1999-10-15 | 23658750 | Good | Fonix Corp | Fonix Corp |
| US5651092A | 0.844 | Method and apparatus for speech encoding speech decoding and speech post processing | GRANT | 1997-07-22 | 1993-05-21 | 14774445 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US6219636B1 | 0.842 | Audio pitch coding method apparatus and program storage device calculating voicing and pitch of subframes of a frame | GRANT | 2001-04-17 | 1998-02-26 | 12733076 | Good | Pioneer Electronic Corp | Pioneer Corp |
| US7272555B2 | 0.842 | Fine granularity scalability speech coding for multi-pulses CELP-based algorithm | GRANT | 2007-09-18 | 2001-09-13 | 36501780 | Good | Industrial Technology Research Institute ITRI | Industrial Technology Research Institute ITRI |
| US6295520B1 | 0.842 | Multi-pulse synthesis simplification in analysis-by-synthesis coders | GRANT | 2001-09-25 | 1999-03-15 | 23023436 | Good | Tritech Microelectronics Ltd | Cirrus Logic Inc |
| US5963897A | 0.841 | Apparatus and method for hybrid excited linear prediction speech encoding | GRANT | 1999-10-05 | 1998-02-27 | 21859929 | Good | Lernout and Hauspie Speech Products NV | Nuance Communications Inc |
| US7272553B1 | 0.837 | Varying pulse amplitude multi-pulse analysis speech processor and method | GRANT | 2007-09-18 | 1999-09-08 | 38481870 | Good | 8X8 Inc | 8X8 Inc |
| US7739106B2 | 0.836 | Sinusoidal coding including a phase jitter parameter | GRANT | 2010-06-15 | 2000-06-20 | 8171658 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US5983173A | 0.835 | Envelope-invariant speech coding based on sinusoidal analysis of LPC residuals and with pitch conversion of voiced speech | GRANT | 1999-11-09 | 1996-11-19 | 17978863 | Good | Sony Corp | Sony Corp |
| US6681202B1 | 0.834 | Wide band synthesis through extension matrix | GRANT | 2004-01-20 | 1999-11-10 | 8242175 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US7895046B2 | 0.833 | Low bit rate codec | GRANT | 2011-02-22 | 2001-12-04 | 20286184 | Good | Global IP Solutions GIPS AB, Global IP Solutions Inc | Google LLC |
| EP0573216A2 | 0.833 | CELP vocoder | GRANT | 1993-12-08 | 1992-06-04 | 25401353 | Good | American Telephone and Telegraph Co Inc, AT&T Corp | AT&T Corp |
| US7236928B2 | 0.831 | Joint optimization of speech excitation and filter parameters | GRANT | 2007-06-26 | 2001-12-19 | 21817428 | Good | NTT Docomo Inc | NTT Docomo Inc |
| US5913187A | 0.831 | Nonlinear filter for noise suppression in linear prediction speech processing devices | GRANT | 1999-06-15 | 1997-08-29 | 25444278 | Good | Nortel Networks Corp | Nortel Networks Ltd, DowBrands Inc, Genband US LLC |
| US6393391B1 | 0.830 | Speech coder for high quality at low bit rates | GRANT | 2002-05-21 | 1998-04-15 | 22223511 | Good | NEC Corp | NEC Corp |
| US6662153B2 | 0.829 | Speech coding system and method using time-separated coding algorithm | GRANT | 2003-12-09 | 2000-09-19 | 19689336 | Good | Electronics and Telecommunications Research Institute ETRI | Pantech Co Ltd |
| US5826226A | 0.829 | Speech coding apparatus having amplitude information set to correspond with position information | GRANT | 1998-10-20 | 1995-09-27 | 17199725 | Good | NEC Corp | NEC Corp |
| EP0834863A2 | 0.829 | Speech coder at low bit rates | GRANT | 1998-04-08 | 1996-08-26 | 26544914 | Good | NEC Corp | NEC Corp |
| US5819212A | 0.829 | Voice encoding method and apparatus using modified discrete cosine transform | GRANT | 1998-10-06 | 1995-10-26 | 26562996 | Good | Sony Corp | Sony Corp |
| US5717827A | 0.829 | Text-to-speech system using vector quantization based speech enconding/decoding | GRANT | 1998-02-10 | 1993-01-21 | 21724732 | Good | Apple Computer Inc | Apple Inc |
| EP0573215A2 | 0.829 | Vocoder synchronization | GRANT | 1993-12-08 | 1992-06-04 | 25401351 | Good | American Telephone and Telegraph Co Inc, AT&T Corp | AT&T Corp |
| US5839102A | 0.828 | Speech coding parameter sequence reconstruction by sequence classification and interpolation | GRANT | 1998-11-17 | 1994-11-30 | 23361091 | Good | Nokia of America Corp | AT&T Corp, Nokia of America Corp |
| US6006178A | 0.825 | Speech encoder capable of substantially increasing a codebook size without increasing the number of transmitted bits | GRANT | 1999-12-21 | 1995-07-27 | 16286951 | Good | NEC Corp | NEC Corp |
| US4724535A | 0.824 | Low bit-rate pattern coding with recursive orthogonal decision of parameters | GRANT | 1988-02-09 | 1984-04-17 | 27293764 | Good | NEC Corp | NEC Corp |
| US5023910A | 0.823 | Vector quantization in a harmonic speech coding arrangement | GRANT | 1991-06-11 | 1988-04-08 | 23249262 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US5832437A | 0.822 | Continuous and discontinuous sine wave synthesis of speech signals from harmonic data of different pitch periods | GRANT | 1998-11-03 | 1994-08-23 | 16391329 | Good | Sony Corp | Sony Corp |
| US5717823A | 0.822 | Speech-rate modification for linear-prediction based analysis-by-synthesis speech coders | GRANT | 1998-02-10 | 1994-04-14 | 22854705 | Good | Nokia of America Corp | Nokia of America Corp |
| US5864798A | 0.822 | Method and apparatus for adjusting a spectrum shape of a speech signal | GRANT | 1999-01-26 | 1995-09-18 | 27332640 | Good | Toshiba Corp | Toshiba Corp |
| US6453289B1 | 0.821 | Method of noise reduction for speech codecs | GRANT | 2002-09-17 | 1998-07-24 | 26788411 | Good | Hughes Electronics Corp | JPMorgan Chase Bank NA, Hughes Network Systems LLC |
| US6292774B1 | 0.821 | Introduction into incomplete data frames of additional coefficients representing later in time frames of speech signal samples | GRANT | 2001-09-18 | 1997-04-07 | 8228172 | Good | US Philips Corp | US Philips Corp |
| US5729694A | 0.820 | Speech coding reconstruction and recognition using acoustics and electromagnetic waves | GRANT | 1998-03-17 | 1996-02-06 | 24392138 | Good | University of California | Lawrence Livermore National Security LLC |
| US4873723A | 0.819 | Method and apparatus for multi-pulse speech coding | GRANT | 1989-10-10 | 1986-09-18 | 16764742 | Good | NEC Corp | NEC Corp |
| US6973424B1 | 0.818 | Voice coder | GRANT | 2005-12-06 | 1998-06-30 | 16166231 | Good | NEC Corp | NEC Corp |
| US6847928B1 | 0.818 | Speech decoder and speech decoding method | GRANT | 2005-01-25 | 1998-05-27 | 15402245 | Good | NTT Mobile Communications Networks Inc | NTT Docomo Inc |
| US20020184010A1 | 0.817 | Noise suppression | APPLICATION | 2002-12-05 | 2001-03-30 | 26655429 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| USRE43099E1 | 0.816 | Speech coder methods and systems | GRANT | 2012-01-10 | 1996-12-19 | 25089164 | Good | Alcatel Lucent SAS | Alcatel Lucent SAS |
| US6842732B2 | 0.815 | Speech encoding and decoding method and electronic apparatus for synthesizing speech signals using excitation signals | GRANT | 2005-01-11 | 2000-10-20 | 18798927 | Good | Toshiba Corp | Toshiba Corp |
| US6763329B2 | 0.814 | Method of converting the speech rate of a speech signal use of the method and a device adapted therefor | GRANT | 2004-07-13 | 2000-04-06 | 26073691 | Good | Telefonaktiebolaget LM Ericsson AB | Optis Wireless Technology LLC |
| US20020080779A1 | 0.812 | Late frame recovery method | APPLICATION | 2002-06-27 | 1999-12-09 | 27803692 | Good | Broadcom Corp | Avago Technologies General IP Singapore Pte Ltd |
| US5884252A | 0.810 | Method of and apparatus for coding speech signal | GRANT | 1999-03-16 | 1995-05-31 | 15103195 | Good | NEC Corp | Rakuten Inc |
| US6009388A | 0.809 | High quality speech code and coding method | GRANT | 1999-12-28 | 1996-12-18 | 18320148 | Good | NEC Corp | NEC Corp |
| US4862503A | 0.808 | Voice parameter extractor using oral airflow | GRANT | 1989-08-29 | 1988-01-19 | 22512456 | Good | Syracuse University | SYRACUSE UNIVERSITY A CORP OF NY, Syracuse University |
| US4625286A | 0.807 | Time encoding of LPC roots | GRANT | 1986-11-25 | 1982-05-03 | 23474642 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US5946651A | 0.801 | Speech synthesizer employing post-processing for enhancing the quality of the synthesized speech | GRANT | 1999-08-31 | 1995-06-16 | 10776197 | Good | Nokia Mobile Phones Ltd | Nokia Technologies Oy |
| US5216747A | 0.801 | Voiced/unvoiced estimation of an acoustic signal | GRANT | 1993-06-01 | 1990-09-20 | 27079530 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| US7337112B2 | 0.800 | Digital signal coding and decoding methods and apparatuses and programs therefor | GRANT | 2008-02-26 | 2001-08-23 | 27573766 | Good | Nippon Telegraph and Telephone Corp | Nippon Telegraph and Telephone Corp |
| US5781880A | 0.800 | Pitch lag estimation using frequency-domain lowpass filtering of the linear predictive coding (LPC) residual | GRANT | 1998-07-14 | 1994-11-21 | 23804758 | Good | Rockwell International Corp | ROCKWELLSCIENCE CENTER Inc, WIAV Solutions LLC |
| US6526378B1 | 0.799 | Method and apparatus for processing sound signal | GRANT | 2003-02-25 | 1997-12-08 | 18302839 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US4868867A | 0.798 | Vector excitation speech or audio coder for transmission or storage | GRANT | 1989-09-19 | 1987-04-06 | 21883199 | Good | VoiceCraft Inc | GERSHO ALLEN GOLETA, Cisco Technology Inc |
| US7269552B1 | 0.796 | Quantizing speech signal codewords to reduce memory requirements | GRANT | 2007-09-11 | 1998-10-06 | 7883505 | Good | Robert Bosch GmbH | Robert Bosch GmbH |
| US5933805A | 0.795 | Retaining prosody during speech analysis for later playback | GRANT | 1999-08-03 | 1996-12-13 | 25072281 | Good | Intel Corp | Intel Corp |
| EP0713208B1 | 0.795 | Pitch lag estimation system | GRANT | 2002-02-20 | 1994-11-21 | 23342074 | Good | Lakestar Semi Inc | Lakestar Semi Inc |
| US5193140A | 0.794 | EXCITATION PULSE POSITIONING METHOD IN A LINEAR PREDICTIVE SPEECH CODER | GRANT | 1993-03-09 | 1989-05-11 | 26660505 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5903866A | 0.792 | Waveform interpolation speech coding using splines | GRANT | 1999-05-11 | 1997-03-10 | 25214120 | Good | Nokia of America Corp | Nokia of America Corp |
| US5226084A | 0.792 | Methods for speech quantization and error correction | GRANT | 1993-07-06 | 1990-12-05 | 24503712 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| EP0867862A2 | 0.791 | Coding and decoding system for speech and musical sound | GRANT | 1998-09-30 | 1997-03-26 | 13492588 | Good | NEC Corp | NEC Corp |
| US5305421A | 0.791 | Low bit rate speech coding system and compression | GRANT | 1994-04-19 | 1991-08-28 | 25019952 | Good | ITT Corp | ITT Corp |
| US6014623A | 0.791 | Method of encoding synthetic speech | GRANT | 2000-01-11 | 1997-06-12 | 25362354 | Good | United Microelectronics Corp | United Microelectronics Corp |
| US6915263B1 | 0.791 | Digital audio decoder having error concealment using a dynamic recovery delay and frame repeating and also having fast audio muting capabilities | GRANT | 2005-07-05 | 1999-10-20 | 23673535 | Good | Sony Corp, Sony Electronics Inc | Saturn Licensing LLC |
| US5457783A | 0.791 | Adaptive speech coder having code excited linear prediction | GRANT | 1995-10-10 | 1992-08-07 | 25454248 | Good | Pacific Communication Sciences Inc | NVERA HOLDINGS Inc, Cirrus Logic Inc, Mindspeed Technologies LLC, AudioCodes Inc |
| US6018707A | 0.789 | Vector quantization method speech encoding method and apparatus | GRANT | 2000-01-25 | 1996-09-24 | 17225482 | Good | Sony Corp | Sony Corp |
| US5528726A | 0.788 | Digital waveguide speech synthesis system and method | GRANT | 1996-06-18 | 1992-01-27 | 26880443 | Good | Leland Stanford Junior University | Leland Stanford Junior University |
| US7146311B1 | 0.787 | CELP encoding/decoding method and apparatus | GRANT | 2006-12-05 | 1998-09-16 | 20412632 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US7180892B1 | 0.787 | Voice and data exchange over a packet based network with voice detection | GRANT | 2007-02-20 | 1999-09-20 | 27586443 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US6470310B1 | 0.786 | Method and system for speech encoding involving analyzing search range for current period according to length of preceding pitch period | GRANT | 2002-10-22 | 1998-10-08 | 17708395 | Good | Toshiba Corp | Toshiba Corp |
| US4991214A | 0.785 | Speech coding using sparse vector codebook and cyclic shift techniques | GRANT | 1991-02-05 | 1987-08-28 | 26292660 | Good | British Telecommunications PLC | British Telecommunications PLC |
| US5717824A | 0.783 | Adaptive speech coder having code excited linear predictor with multiple codebook searches | GRANT | 1998-02-10 | 1992-08-07 | 22588434 | Good | Pacific Communication Sciences Inc | NVERA HOLDINGS Inc, Cirrus Logic Inc, Mindspeed Technologies LLC, AudioCodes Inc |
| US6064956A | 0.782 | Method to determine the excitation pulse positions within a speech frame | GRANT | 2000-05-16 | 1995-04-12 | 20397946 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US6272459B1 | 0.782 | Voice signal coding apparatus | GRANT | 2001-08-07 | 1996-04-12 | 27306668 | Good | Olympus Corp | Olympus Corp |
| EP0154381A2 | 0.781 | Digital speech coder with baseband residual coding | GRANT | 1985-09-11 | 1984-03-07 | 19843614 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US20040148162A1 | 0.781 | Method for encoding and transmitting voice signals | APPLICATION | 2004-07-29 | 2001-05-18 | 7685379 | Good | Siemens AG | Siemens AG |
| US5893061A | 0.781 | Method of synthesizing a block of a speech signal in a celp-type coder | GRANT | 1999-04-06 | 1995-11-09 | 8219802 | Good | Nokia Mobile Phones Ltd | Nokia Mobile Phones Ltd |
| US5673363A | 0.778 | Error concealment method and apparatus of audio signals | GRANT | 1997-09-30 | 1994-12-21 | 19402727 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US6038530A | 0.777 | Communication network for transmitting speech signals | GRANT | 2000-03-14 | 1997-02-10 | 8227998 | Good | US Philips Corp | US Philips Corp |
| US7089179B2 | 0.775 | Voice coding method voice coding apparatus and voice decoding apparatus | GRANT | 2006-08-08 | 1998-09-01 | 26500934 | Good | Fujitsu Ltd | Fujitsu Ltd |
| EP0764941A2 | 0.774 | Speech signal quantization using human auditory models in predictive coding systems | GRANT | 1997-03-26 | 1995-09-19 | 24115771 | Good | AT&T Corp | AT&T Corp |
| US7206739B2 | 0.772 | Excitation codebook search method in a speech coding system | GRANT | 2007-04-17 | 2001-05-23 | 19709844 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| WO2001067437A1 | 0.771 | SPEECH DECODER AND A METHOD FOR DECODING SPEECH | APPLICATION | 2001-09-13 | 2000-03-07 | 8557866 | Good | ||
| US4720861A | 0.771 | Digital speech coding circuit | GRANT | 1988-01-19 | 1985-12-24 | 25211477 | Good | ITT Corp, ITT DEFENSE COMMUNICATIONS A DIVISION OF ITT Corp | ITT DEFENSE COMMUNICATIONS A DIVISION OF ITT Corp |
| EP0764938A2 | 0.769 | Perceptual noise masking based on synthesis filter frequency response | GRANT | 1997-03-26 | 1995-09-19 | 24115777 | Good | AT&T Corp | AT&T Corp |
| US5754976A | 0.769 | Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech | GRANT | 1998-05-19 | 1990-02-23 | 27010408 | Good | Universite de Sherbrooke | Universite de Sherbrooke |
| EP0954851A1 | 0.766 | MULTI-STAGE SPEECH CODER WITH TRANSFORM CODING OF PREDICTION RESIDUAL SIGNALS WITH QUANTIZATION BY AUDITORY MODELS | GRANT | 1999-11-10 | 1996-02-26 | 21754300 | Good | AT&T Corp | AT&T Corp |
| US6052660A | 0.766 | Adaptive codebook | GRANT | 2000-04-18 | 1997-06-16 | 15665900 | Good | NEC Corp | NEC Corp |
| EP0764939A2 | 0.766 | Synthesis of speech signals in the absence of coded parameters | GRANT | 1997-03-26 | 1995-09-19 | 24114940 | Good | AT&T Corp | AT&T Corp |
| US5809456A | 0.766 | Voiced speech coding and decoding using phase-adapted single excitation | GRANT | 1998-09-15 | 1995-06-28 | 11371877 | Good | Alcatel Lucent Italia SpA | Alcatel Lucent Italia SpA |
| US7630884B2 | 0.766 | Code conversion method apparatus program and storage medium | GRANT | 2009-12-08 | 2001-11-13 | 19160057 | Good | NEC Corp | NEC Corp |
| US5091944A | 0.765 | APPARATUS FOR LINEAR PREDICTIVE CODING AND DECODING OF SPEECH USING RESIDUAL WAVE FORM TIME-ACCESS COMPRESSION | GRANT | 1992-02-25 | 1989-04-21 | 14334989 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US4669120A | 0.764 | Low bit-rate speech coding with decision of a location of each exciting pulse of a train concurrently with optimum amplitudes of pulses | GRANT | 1987-05-26 | 1983-07-08 | 26461163 | Good | NEC Corp | NEC Corp |
| US5081681A | 0.763 | Method and apparatus for phase synthesis for speech processing | GRANT | 1992-01-14 | 1989-11-30 | 23763247 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| US6014619A | 0.763 | Reduced complexity signal transmission system | GRANT | 2000-01-11 | 1996-02-15 | 8223671 | Good | US Philips Corp | US Philips Corp |
| US6041298A | 0.763 | Method for synthesizing a frame of a speech signal with a computed stochastic excitation part | GRANT | 2000-03-21 | 1996-10-09 | 7808273 | Good | Nokia Mobile Phones Ltd | Qualcomm Inc |
| US6094630A | 0.762 | Sequential searching speech coding device | GRANT | 2000-07-25 | 1995-12-06 | 18095159 | Good | NEC Corp | NEC Corp |
| US5067158A | 0.761 | Linear predictive residual representation via non-iterative spectral reconstruction | GRANT | 1991-11-19 | 1985-06-11 | 24991724 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US20030088417A1 | 0.761 | Speech analysis method and speech synthesis system | APPLICATION | 2003-05-08 | 2001-09-19 | 25497291 | Good | Panasonic Corp | Panasonic Corp |
| US5517595A | 0.759 | Decomposition in noise and periodic signal waveforms in waveform interpolation | GRANT | 1996-05-14 | 1994-02-08 | 22720511 | Good | AT&T Corp | AT&T Corp |
| US4742550A | 0.758 | 4800 BPS interoperable relp system | GRANT | 1988-05-03 | 1984-09-17 | 24611225 | Good | Motorola Solutions Inc | General Dynamics Decision Systems Inc |
| US5444816A | 0.755 | Dynamic codebook for efficient speech coding based on algebraic codes | GRANT | 1995-08-22 | 1990-02-23 | 4144369 | Good | Universite de Sherbrooke | Universite de Sherbrooke |
| EP0149724A1 | 0.752 | Method and apparatus for coding digital signals | GRANT | 1985-07-31 | 1983-11-30 | 4126639 | Good | Northern Telecom Ltd | Nortel Networks Ltd |
| US3624302A | 0.752 | SPEECH ANALYSIS AND SYNTHESIS BY THE USE OF THE LINEAR PREDICTION OF A SPEECH WAVE | GRANT | 1971-11-30 | 1969-10-29 | 25358732 | Good | Bell Telephone Laboratories Inc | AT&T Corp |
| US6064962A | 0.751 | Formant emphasis method and formant emphasis filter device | GRANT | 2000-05-16 | 1995-09-14 | 27332387 | Good | Toshiba Corp | Toshiba Corp |
| US4441200A | 0.750 | Digital voice processing system | GRANT | 1984-04-03 | 1981-10-08 | 23199040 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US6564183B1 | 0.749 | Speech coding including soft adaptability feature | GRANT | 2003-05-13 | 1998-03-04 | 21877362 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5195166A | 0.749 | Methods for generating the voiced portion of speech signals | GRANT | 1993-03-16 | 1990-09-20 | 24343133 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| EP1458145A1 | 0.745 | ERROR CONCEALMENT APPARATUS AND METHOD | GRANT | 2004-09-15 | 2001-11-15 | 19162561 | Good | Panasonic Corp | Panasonic Corp |
| US6763330B2 | 0.744 | Receiver for receiving a linear predictive coded speech signal | GRANT | 2004-07-13 | 1993-12-14 | 22602342 | Good | InterDigital Technology Corp | InterDigital Technology Corp |
| US7233893B2 | 0.743 | Method and apparatus for transmitting wideband speech signals | GRANT | 2007-06-19 | 2001-12-19 | 19717231 | Good | Electronics and Telecommunications Research Institute ETRI | Electronics and Telecommunications Research Institute ETRI |
| US7260541B2 | 0.743 | Audio signal decoding device and audio signal encoding device | GRANT | 2007-08-21 | 2001-07-13 | 19048367 | Good | Panasonic Corp | Panasonic Corp |
| US5933802A | 0.743 | Speech reproducing system with efficient speech-rate converter | GRANT | 1999-08-03 | 1996-06-10 | 15423318 | Good | NEC Corp | NEC Electronics Corp |
| EP0592151A1 | 0.740 | Time-frequency interpolation with application to low rate speech coding | GRANT | 1994-04-13 | 1992-10-09 | 25501895 | Good | American Telephone and Telegraph Co Inc, AT&T Corp | AT&T Corp |
| US7130796B2 | 0.739 | Voice encoding method and apparatus of selecting an excitation mode from a plurality of excitation modes and encoding an input speech using the excitation mode selected | GRANT | 2006-10-31 | 2001-02-27 | 18913489 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US6549587B1 | 0.738 | Voice and data exchange over a packet based network with timing recovery | GRANT | 2003-04-15 | 1999-09-20 | 27586442 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US5091945A | 0.735 | Source dependent channel coding with error protection | GRANT | 1992-02-25 | 1989-09-28 | 23640183 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US6351730B2 | 0.734 | Low-complexity low-delay scalable and embedded speech and audio coding with adaptive frame loss concealment | GRANT | 2002-02-26 | 1998-03-30 | 22154981 | Good | Nokia of America Corp | Nokia of America Corp |
| US20020128839A1 | 0.734 | Speech bandwidth extension | APPLICATION | 2002-09-12 | 2001-01-12 | 26696319 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US7289952B2 | 0.733 | Excitation vector generator speech coder and speech decoder | GRANT | 2007-10-30 | 1996-11-07 | 27459954 | Good | Panasonic Corp | Godo Kaisha IP Bridge 1 |
| US6928406B1 | 0.732 | Excitation vector generating apparatus and speech coding/decoding apparatus | GRANT | 2005-08-09 | 1999-03-05 | 26400568 | Good | Panasonic Corp | III Holdings 12 LLC |
| US6157907A | 0.731 | Interpolation in a speech decoder of a transmission system on the basis of transformed received prediction parameters | GRANT | 2000-12-05 | 1997-02-10 | 8227999 | Good | US Philips Corp | US Philips Corp |
| US6104994A | 0.727 | Method for speech coding under background noise conditions | GRANT | 2000-08-15 | 1998-01-13 | 21720805 | Good | Lakestar Semi Inc | WIAV Solutions LLC |
| US6889182B2 | 0.723 | Speech bandwidth extension | GRANT | 2005-05-03 | 2001-01-12 | 26695712 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5568588A | 0.720 | Multi-pulse analysis speech processing System and method | GRANT | 1996-10-22 | 1994-04-29 | 22890857 | Good | AudioCodes Ltd | AudioCodes Ltd |
| US7065485B1 | 0.720 | Enhancing speech intelligibility using variable-rate time-scale modification | GRANT | 2006-06-20 | 2002-01-09 | 36586517 | Good | AT&T Corp | Nuance Communications Inc |
| US6766289B2 | 0.720 | Fast code-vector searching | GRANT | 2004-07-20 | 2001-06-04 | 25364269 | Good | Qualcomm Inc | Qualcomm Inc |
| US6597961B1 | 0.720 | System and method for concealing errors in an audio transmission | GRANT | 2003-07-22 | 1999-04-27 | 23160637 | Good | RealNetworks Inc | Intel Corp |
| EP1308932A2 | 0.720 | Adaptive postfiltering methods and systems for decoding speech | GRANT | 2003-05-07 | 2001-10-03 | 26909634 | Good | Broadcom Corp | Broadcom Corp |
| US4885790A | 0.719 | Processing of acoustic waveforms | GRANT | 1989-12-05 | 1985-03-18 | 26991899 | Good | Massachusetts Institute of Technology | Massachusetts Institute of Technology |
| US5822724A | 0.719 | Optimized pulse location in codebook searching techniques for speech processing | GRANT | 1998-10-13 | 1995-06-14 | 24063578 | Good | AT&T IPM Corp | AT&T Corp |
| US6807526B2 | 0.718 | Method of and apparatus for processing at least one coded binary audio flux organized into frames | GRANT | 2004-10-19 | 1999-12-08 | 9553092 | Good | France Telecom SA | Orange SA |
| US5704003A | 0.716 | RCELP coder | GRANT | 1997-12-30 | 1995-09-19 | 24112207 | Good | Nokia of America Corp | Nokia of America Corp |
| US5506934A | 0.716 | Post-filter for speech synthesizing apparatus | GRANT | 1996-04-09 | 1991-06-28 | 15676798 | Good | Sharp Corp | Sharp Corp |
| US3940565A | 0.714 | Time domain speech recognition system | GRANT | 1976-02-24 | 1973-07-27 | 23512490 | Good | ||
| US4964169A | 0.713 | Method and apparatus for speech coding | GRANT | 1990-10-16 | 1984-02-02 | 26353847 | Good | NEC Corp | NEC Corp |
| US6681203B1 | 0.713 | Coupled error code protection for multi-mode vocoders | GRANT | 2004-01-20 | 1999-02-26 | 22978477 | Good | Nokia of America Corp | Google LLC |
| US6415254B1 | 0.712 | Sound encoder and sound decoder | GRANT | 2002-07-02 | 1997-10-22 | 27304940 | Good | Panasonic Corp | Godo Kaisha IP Bridge 1 |
| US20020102942A1 | 0.709 | Communication system having bad frame indicator means for resynchronization purposes | APPLICATION | 2002-08-01 | 2000-11-21 | 8172307 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US6272196B1 | 0.708 | Encoder using an excitation sequence and a residual excitation sequence | GRANT | 2001-08-07 | 1996-02-15 | 8223673 | Good | US Philips Corp | US Philips Corp |
| US6401062B1 | 0.707 | Apparatus for encoding and apparatus for decoding speech and musical signals | GRANT | 2002-06-04 | 1998-02-27 | 13266312 | Good | NEC Corp | NEC Corp |
| US3975587A | 0.707 | Digital vocoder | GRANT | 1976-08-17 | 1974-09-13 | 24011929 | Good | International Telephone and Telegraph Corp | ITT Corp |
| US6202045B1 | 0.706 | Speech coding with variable model order linear prediction | GRANT | 2001-03-13 | 1997-10-02 | 8549657 | Good | Nokia Mobile Phones Ltd | Provenance Asset Group LLC, Nokia USA Inc |
| US6587817B1 | 0.705 | Method and apparatus for determining speech coding parameters | GRANT | 2003-07-01 | 1999-01-08 | 8553299 | Good | Nokia Mobile Phones Ltd | Nokia Technologies Oy |
| US6205421B1 | 0.704 | Speech coding apparatus linear prediction coefficient analyzing apparatus and noise reducing apparatus | GRANT | 2001-03-20 | 1994-12-19 | 27474829 | Good | Panasonic Corp | Panasonic Intellectual Property Corp |
| US6678651B2 | 0.704 | Short-term enhancement in CELP speech coding | GRANT | 2004-01-13 | 2000-09-15 | 22875162 | Good | Mindspeed Technologies LLC | MACOM Technology Solutions Holdings Inc |
| US4908863A | 0.703 | Multi-pulse coding system | GRANT | 1990-03-13 | 1986-07-30 | 16081934 | Good | NEC Corp | NEC Corp |
| US6278387B1 | 0.701 | Audio encoder and decoder utilizing time scaling for variable playback | GRANT | 2001-08-21 | 1999-09-28 | 23612222 | Good | Lakestar Semi Inc | Synaptics Inc |
| US6408273B1 | 0.696 | Method and device for the processing of sounds for auditory correction for hearing impaired individuals | GRANT | 2002-06-18 | 1998-12-04 | 9533606 | Good | Thomson CSF SA | Thales SA |
| US8069038B2 | 0.692 | System for bandwidth extension of narrow-band speech | GRANT | 2011-11-29 | 2001-10-04 | 25518296 | Good | AT&T Intellectual Property II LP | Nuance Communications Inc |
| US5710862A | 0.691 | Method and apparatus for reducing an undesirable characteristic of a spectral estimate of a noise signal between occurrences of voice signals | GRANT | 1998-01-20 | 1993-06-30 | 22193332 | Good | Motorola Solutions Inc | Google Technology Holdings LLC |
| US9792919B2 | 0.691 | Efficient and scalable parametric stereo coding for low bitrate applications | GRANT | 2017-10-17 | 2001-07-10 | 41696421 | Good | Dolby International AB | Dolby International AB |
| US7395211B2 | 0.690 | Modulating one or more parameters of an audio or video perceptual coding system in response to supplemental information | GRANT | 2008-07-01 | 2000-08-16 | 27575224 | Good | Dolby Laboratories Licensing Corp | Dolby Laboratories Licensing Corp |
| US7337107B2 | 0.690 | Perceptual harmonic cepstral coefficients as the front-end for speech recognition | GRANT | 2008-02-26 | 2000-10-02 | 22893097 | Good | University of California | University of California |
| US5963898A | 0.689 | Analysis-by-synthesis speech coding method with truncation of the impulse response of a perceptual weighting filter | GRANT | 1999-10-05 | 1995-01-06 | 9474932 | Good | Matra Communication SA | Microsoft Technology Licensing LLC |
| US6879955B2 | 0.688 | Signal modification based on continuous time warping for low bit rate CELP coding | GRANT | 2005-04-12 | 2001-06-29 | 25405930 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6064954A | 0.687 | Digital audio signal coding | GRANT | 2000-05-16 | 1997-04-03 | 8230017 | Good | International Business Machines Corp | Cisco Technology Inc |
| EP0514912A2 | 0.686 | Speech coding and decoding methods | GRANT | 1992-11-25 | 1991-05-22 | 27565852 | Good | Nippon Telegraph and Telephone Corp | Nippon Telegraph and Telephone Corp |
| EP1168651A2 | 0.684 | Optimising audio coding through re-encoding | GRANT | 2002-01-02 | 2000-06-30 | 18696682 | Good | Hitachi Ltd | Hitachi Ltd |
| US5974377A | 0.683 | Analysis-by-synthesis speech coding method with open-loop and closed-loop search of a long-term prediction delay | GRANT | 1999-10-26 | 1995-01-06 | 9474931 | Good | Matra Communication SA | Apple Inc |
| US5819217A | 0.683 | Method and system for differentiating between speech and noise | GRANT | 1998-10-06 | 1995-12-21 | 24302957 | Good | Nynex Science and Technology Inc | Verizon Patent and Licensing Inc |
| EP0658874B1 | 0.683 | Process and circuit for producing from a speech signal with small bandwidth a speech signal with great bandwidth | GRANT | 1999-08-04 | 1993-12-18 | 6505454 | Good | Grundig AG | Grundig AG |
| US6664913B1 | 0.682 | Lossless coding method for waveform data | GRANT | 2003-12-16 | 1995-05-15 | 10774504 | Good | Dolby Laboratories Licensing Corp | Dolby Laboratories Licensing Corp |
| US5751901A | 0.681 | Method for searching an excitation codebook in a code excited linear prediction (CELP) coder | GRANT | 1998-05-12 | 1996-07-31 | 24773618 | Good | Qualcomm Inc | Qualcomm Inc |
| US7013267B1 | 0.681 | Method and apparatus for reconstructing voice information | GRANT | 2006-03-14 | 2001-07-30 | 35998888 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US7047187B2 | 0.678 | Method and apparatus for audio error concealment using data hiding | GRANT | 2006-05-16 | 2002-02-27 | 27753380 | Good | Panasonic Corp | Panasonic Corp |
| US6581030B1 | 0.678 | Target signal reference shifting employed in code-excited linear prediction speech coding | GRANT | 2003-06-17 | 2000-04-13 | 24187842 | Good | Lakestar Semi Inc | MACOM Technology Solutions Holdings Inc, WIAV Solutions LLC |
| US9218818B2 | 0.677 | Efficient and scalable parametric stereo coding for low bitrate audio coding applications | GRANT | 2015-12-22 | 2001-07-10 | 27354735 | Good | Dolby International AB | Dolby International AB |
| US5956674A | 0.676 | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency time and over the multiple channels | GRANT | 1999-09-21 | 1995-12-01 | 26677495 | Good | Digital Theater Systems Inc | DTS Inc |
| US7124077B2 | 0.674 | Frequency domain postfiltering for quality enhancement of coded speech | GRANT | 2006-10-17 | 2001-06-29 | 25405563 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US5864797A | 0.673 | Pitch-synchronous speech coding by applying multiple analysis to select and align a plurality of types of code vectors | GRANT | 1999-01-26 | 1995-05-30 | 26466172 | Good | Sanyo Electric Co Ltd | Sanyo Electric Co Ltd |
| US6169970B1 | 0.672 | Generalized analysis-by-synthesis speech coding method and apparatus | GRANT | 2001-01-02 | 1998-01-08 | 21710644 | Good | Nokia of America Corp | Nokia of America Corp |
| US5794182A | 0.667 | Linear predictive speech encoding systems with efficient combination pitch coefficients computation | GRANT | 1998-08-11 | 1996-09-30 | 24909339 | Good | Apple Computer Inc | Apple Inc |
| US6738733B1 | 0.666 | G.723.1 audio encoder | GRANT | 2004-05-18 | 1999-09-30 | 20430238 | Good | STMicroelectronics Asia Pacific Pte Ltd | STMicroelectronics Asia Pacific Pte Ltd |
| US6704703B2 | 0.663 | Recursively excited linear prediction speech coder | GRANT | 2004-03-09 | 2000-02-04 | 26876139 | Good | Nuance Communications Inc | Nuance Communications Inc |
| US6519558B1 | 0.663 | Audio signal pitch adjustment apparatus and method | GRANT | 2003-02-11 | 1999-05-21 | 15317185 | Good | Sony Corp | Sony Corp |
| US6415253B1 | 0.663 | Method and apparatus for enhancing noise-corrupted speech | GRANT | 2002-07-02 | 1998-02-20 | 26756855 | Good | Meta C Corp | META-C Corp, Meta C Corp |
| WO1996022639A1 | 0.663 | METHOD AND APPARATUS FOR THE FORMATTING OF DATA FOR TRANSMISSION | APPLICATION | 1996-07-25 | 1995-01-17 | 23476847 | Good | ||
| US5970444A | 0.661 | Speech coding method | GRANT | 1999-10-19 | 1997-03-13 | 13114126 | Good | Nippon Telegraph and Telephone Corp | Nippon Telegraph and Telephone Corp |
| US7930171B2 | 0.660 | Multi-channel audio encoding/decoding with parametric compression/decompression and weight factors | GRANT | 2011-04-19 | 2001-12-14 | 21784087 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US20030093266A1 | 0.659 | Speech coding apparatus speech decoding apparatus and speech coding/decoding method | APPLICATION | 2003-05-15 | 2001-11-13 | 19160417 | Good | Panasonic Corp | Panasonic Corp |
| US7289951B1 | 0.657 | Method for improving the coding efficiency of an audio signal | GRANT | 2007-10-30 | 1999-07-05 | 8555025 | Good | Nokia Oyj | Provenance Asset Group LLC, Nokia USA Inc |
| US4076958A | 0.656 | Signal synthesizer spectrum contour scaler | GRANT | 1978-02-28 | 1976-09-13 | 24903499 | Good | E Systems Inc | Raytheon Co |
| US5924062A | 0.654 | ACLEP codec with modified autocorrelation matrix storage and search | GRANT | 1999-07-13 | 1997-07-01 | 25389369 | Good | Nokia Mobile Phones Ltd | Qualcomm Inc |
| US5171930A | 0.653 | Electroglottograph-driven controller for a MIDI-compatible electronic music synthesizer device | GRANT | 1992-12-15 | 1990-09-26 | 24356293 | Good | Synchro Voice Inc | SYNCHRO VOICE Inc A CORP OF NEW YORK, Synchro Voice Inc |
| WO2003090204A1 | 0.652 | METHOD AND APPARATUS FOR PITCH PERIOD ESTIMATION | APPLICATION | 2003-10-30 | 2002-04-19 | 29254546 | Good | ||
| US5384891A | 0.651 | Vector quantizing apparatus and speech analysis-synthesis system using the apparatus | GRANT | 1995-01-24 | 1988-09-28 | 27572018 | Good | Hitachi Ltd | Hitachi Ltd |
| US4520499A | 0.651 | Combination speech synthesis and recognition apparatus | GRANT | 1985-05-28 | 1982-06-25 | 23550080 | Good | Milton Bradley Co | Milton Bradley Co |
| US20040120309A1 | 0.649 | Methods for changing the size of a jitter buffer and for time alignment communications system receiving end and transcoder | APPLICATION | 2004-06-24 | 2001-04-24 | 8164382 | Good | Nokia Oyj | Nokia Oyj |
| US20020069052A1 | 0.647 | Noise feedback coding method and system for performing general searching of vector quantization codevectors used for coding a speech signal | APPLICATION | 2002-06-06 | 2000-10-25 | 26935259 | Good | Broadcom Corp | Avago Technologies General IP Singapore Pte Ltd |
| US6397178B1 | 0.647 | Data organizational scheme for enhanced selection of gain parameters for speech coding | GRANT | 2002-05-28 | 1998-09-18 | 22562272 | Good | Lakestar Semi Inc | MACOM Technology Solutions Holdings Inc |
| US7177803B2 | 0.646 | Method and apparatus for enhancing loudness of an audio signal | GRANT | 2007-02-13 | 2001-10-22 | 23347439 | Good | Motorola Solutions Inc | Google Technology Holdings LLC |
| US4935963A | 0.642 | Method and apparatus for processing speech signals | GRANT | 1990-06-19 | 1986-01-24 | 27007341 | Good | Racal Data Communications Inc | Racal Data Communications Inc |
| US7047184B1 | 0.641 | Speech coding apparatus and speech decoding apparatus | GRANT | 2006-05-16 | 1999-11-08 | 18085645 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US4091237A | 0.639 | Bi-Phase harmonic histogram pitch extractor | GRANT | 1978-05-23 | 1975-10-06 | 24483764 | Good | Lockheed Missiles and Space Co Inc | Lockheed Missiles and Space Co Inc |
| US6789059B2 | 0.637 | Reducing memory requirements of a codebook vector search | GRANT | 2004-09-07 | 2001-06-06 | 25367508 | Good | Qualcomm Inc | Qualcomm Inc |
| US7177304B1 | 0.637 | Devices softwares and methods for prioritizing between voice data packets for discard decision purposes | GRANT | 2007-02-13 | 2002-01-03 | 37719723 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US7206740B2 | 0.637 | Efficient excitation quantization in noise feedback coding with general noise shaping | GRANT | 2007-04-17 | 2002-01-04 | 26910859 | Good | Broadcom Corp | Qualcomm Inc |
| US4817154A | 0.634 | Method and apparatus for encoding and decoding speech signal primary information | GRANT | 1989-03-28 | 1986-12-09 | 25474019 | Good | NCR Corp | MagnaChip Semiconductor Ltd, Symbios Inc, NCR Corp |
| EP0871158A2 | 0.634 | System for speech coding using a multipulse excitation | GRANT | 1998-10-14 | 1997-04-09 | 13997973 | Good | NEC Corp | NEC Corp |
| US6141640A | 0.633 | Multistage positive product vector quantization for line spectral frequencies in low rate speech coding | GRANT | 2000-10-31 | 1998-02-20 | 21838061 | Good | General Electric Co | General Electric Co |
| US7003448B1 | 0.633 | Method and device for error concealment in an encoded audio-signal and method and device for decoding an encoded audio signal | GRANT | 2006-02-21 | 1999-05-07 | 7907325 | Good | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV |
| US4680797A | 0.629 | Secure digital speech communication | GRANT | 1987-07-14 | 1984-06-26 | 24502483 | Good | US Air Force | US Air Force |
| US7447639B2 | 0.629 | System and method for error concealment in digital audio transmission | GRANT | 2008-11-04 | 2001-01-24 | 27361466 | Good | Nokia Oyj | Nokia Solutions and Networks Oy |
| US6161086A | 0.628 | Low-complexity speech coding with backward and inverse filtered target matching and a tree structured mutitap adaptive codebook search | GRANT | 2000-12-12 | 1997-07-29 | 26732584 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US7392179B2 | 0.628 | LPC vector quantization apparatus | GRANT | 2008-06-24 | 2000-11-30 | 18836849 | Good | Panasonic Corp, Nippon Telegraph and Telephone Corp | Panasonic Corp, Nippon Telegraph and Telephone Corp |
| US5878387A | 0.625 | Coding apparatus having adaptive coding at different bit rates and pitch emphasis | GRANT | 1999-03-02 | 1995-03-23 | 13235729 | Good | Toshiba Corp | Toshiba Corp |
| EP0658875A2 | 0.624 | Speech decoder | GRANT | 1995-06-21 | 1993-12-10 | 18006259 | Good | NEC Corp | NEC Corp |
| US5659658A | 0.624 | Method for converting speech using lossless tube models of vocals tracts | GRANT | 1997-08-19 | 1993-02-12 | 8537362 | Good | Nokia Networks Oy | Nokia Solutions and Networks Oy |
| US6480827B1 | 0.621 | Method and apparatus for voice communication | GRANT | 2002-11-12 | 2000-03-07 | 24058365 | Good | Motorola Solutions Inc | Google Technology Holdings LLC |
| US4677671A | 0.620 | Method and device for coding a voice signal | GRANT | 1987-06-30 | 1982-11-26 | 8189988 | Good | International Business Machines Corp | International Business Machines Corp |
| US3982070A | 0.620 | Phase vocoder speech synthesis system | GRANT | 1976-09-21 | 1974-06-05 | 23892415 | Good | Bell Telephone Laboratories Inc | AT&T Corp |
| US4672669A | 0.620 | Voice activity detection process and means for implementing said process | GRANT | 1987-06-09 | 1983-06-07 | 8191498 | Good | International Business Machines Corp | International Business Machines Corp |
| US20050228656A1 | 0.619 | Audio coding | APPLICATION | 2005-10-13 | 2002-05-30 | 29595018 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US6889185B1 | 0.619 | Quantization of linear prediction coefficients using perceptual weighting | GRANT | 2005-05-03 | 1997-08-28 | 34525706 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US7069208B2 | 0.619 | System and method for concealment of data loss in digital audio transmission | GRANT | 2006-06-27 | 2001-01-24 | 25087521 | Good | Nokia Oyj | Nokia Solutions and Networks Oy |
| US6167371A | 0.618 | Speech filter for digital electronic communications | GRANT | 2000-12-26 | 1998-09-22 | 9530706 | Good | US Philips Corp | US Philips Corp |
| EP0788091A2 | 0.617 | Speech encoding and decoding method and apparatus therefor | GRANT | 1997-08-06 | 1996-01-31 | 26351930 | Good | Toshiba Corp | Toshiba Corp |
| US8050911B2 | 0.617 | Method and apparatus for transmitting speech activity in distributed voice recognition systems | GRANT | 2011-11-01 | 2001-06-14 | 26854323 | Good | Qualcomm Inc | Qualcomm Inc |
| US6393390B1 | 0.616 | LPAS speech coder using vector quantized multi-codebook multi-tap pitch predictor and optimized ternary source excitation codebook derivation | GRANT | 2002-05-21 | 1998-08-06 | 22445875 | Good | DSP Software Engineering Inc | Coriant Operations Inc |
| US5583962A | 0.614 | Encoder/decoder for multidimensional sound fields | GRANT | 1996-12-10 | 1991-01-08 | 27093204 | Good | Dolby Laboratories Licensing Corp | Dolby Laboratories Licensing Corp |
| US5235669A | 0.614 | LOW-DELAY CODE-EXCITED LINEAR-PREDICTIVE CODING OF WIDEBAND SPEECH AT 32 KBITS/SEC | GRANT | 1993-08-10 | 1990-06-29 | 24181283 | Good | AT&T Labs Inc | AT&T Corp, AT&T Labs Inc |
| US6411925B1 | 0.613 | Speech processing apparatus and method for noise masking | GRANT | 2002-06-25 | 1998-10-20 | 10840934 | Good | Canon Inc | Canon Inc |
| US5664053A | 0.613 | Predictive split-matrix quantization of spectral parameters for efficient coding of speech | GRANT | 1997-09-02 | 1995-04-03 | 23648186 | Good | Universite de Sherbrooke | Universite de Sherbrooke |
| US4550425A | 0.612 | Speech sampling and companding device | GRANT | 1985-10-29 | 1982-09-20 | 23666909 | Good | Sperry Corp | Sperry Corp |
| US6138093A | 0.612 | High resolution post processing method for a speech decoder | GRANT | 2000-10-24 | 1997-03-03 | 20406015 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US6829578B1 | 0.612 | Tone features for speech recognition | GRANT | 2004-12-07 | 1999-11-11 | 8240851 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US6088667A | 0.611 | LSP prediction coding utilizing a determined best prediction matrix based upon past frame information | GRANT | 2000-07-11 | 1997-02-13 | 12699570 | Good | NEC Corp | NEC Corp |
| US7328151B2 | 0.610 | Audio decoder with dynamic adjustment of signal modification | GRANT | 2008-02-05 | 2002-03-22 | 28040577 | Good | Sound ID | K/S Himpp |
| EP0481374A2 | 0.609 | Dynamic bit allocation subband excited transform coding method and apparatus | GRANT | 1992-04-22 | 1990-10-15 | 24391497 | Good | GTE Laboratories Inc | Verizon Laboratories Inc |
| US6775650B1 | 0.609 | Method for conditioning a digital speech signal | GRANT | 2004-08-10 | 1997-09-18 | 9511228 | Good | Matra Nortel Communications SAS | Apple Inc |
| WO2002017301A1 | 0.609 | AUDIO TRANSMISSION SYSTEM HAVING A PITCH PERIOD ESTIMATOR FOR BAD FRAME HANDLING | APPLICATION | 2002-02-28 | 2000-08-22 | 8171935 | Good | ||
| EP1087379A2 | 0.609 | Quantization errors correction method in a audio decoder | GRANT | 2001-03-28 | 1999-09-27 | 17522930 | Good | Pioneer Corp | Pioneer Corp |
| US4284846A | 0.609 | System and method for sound recognition | GRANT | 1981-08-18 | 1978-05-08 | 26742660 | Good | WHIPPLE PATENT MANAGEMENT Corp A CORP OF CALIFORNIA | WHIPPLE PATENT MANAGEMENT Corp A CORP OF CALIFORNIA |
| US4622680A | 0.608 | Hybrid subband coder/decoder method and apparatus | GRANT | 1986-11-11 | 1984-10-17 | 24654289 | Good | General Electric Co | Ericsson Inc, General Electric Co |
| US6092039A | 0.608 | Symbiotic automatic speech recognition and vocoder | GRANT | 2000-07-18 | 1997-10-31 | 25503300 | Good | International Business Machines Corp | International Business Machines Corp |
| US20040002855A1 | 0.607 | Method for adaptive codebook pitch-lag computation in audio transcoders | APPLICATION | 2004-01-01 | 2002-03-12 | 28041908 | Good | Dilithium Networks Inc | Onmobile Global Ltd |
| US4785349A | 0.606 | Digital video decompression system | GRANT | 1988-11-15 | 1987-10-05 | 22298818 | Good | Technology Inc | Intel Corp, RCA Corp |
| US6937978B2 | 0.606 | Suppression system of background noise of speech signals and the method thereof | GRANT | 2005-08-30 | 2001-10-30 | 25530654 | Good | Chunghwa Telecom Co Ltd | Chunghwa Telecom Co Ltd |
| US6772114B1 | 0.606 | High frequency and low frequency audio signal encoding and decoding system | GRANT | 2004-08-03 | 1999-11-16 | 8240869 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US6421387B1 | 0.604 | Methods and systems for forward error correction based loss recovery for interactive video transmission | GRANT | 2002-07-16 | 1998-05-15 | 27072325 | Good | North Carolina State University | North Carolina State University |
| US4764963A | 0.603 | Speech pattern compression arrangement utilizing speech event identification | GRANT | 1988-08-16 | 1983-04-12 | 26673500 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs |
| US7096180B2 | 0.601 | Method and apparatuses for improving quality of digitally encoded speech in the presence of interference | GRANT | 2006-08-22 | 2002-05-15 | 29418903 | Good | Intel Corp | Intel Corp, Warsaw Orthopedic Inc |
| US20030177011A1 | 0.600 | Audio data interpolation apparatus and method audio data-related information creation apparatus and method audio data interpolation information transmission apparatus and method program and recording medium thereof | APPLICATION | 2003-09-18 | 2001-03-06 | 18921475 | Good | NTT Docomo Inc | NTT Docomo Inc |
| US6393392B1 | 0.600 | Multi-channel signal encoding and decoding | GRANT | 2002-05-21 | 1998-09-30 | 20412777 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5586126A | 0.599 | Sample amplitude error detection and correction apparatus and method for use with a low information content signal | GRANT | 1996-12-17 | 1993-12-30 | 22641416 | Good | ||
| US7010482B2 | 0.599 | REW parametric vector quantization and dual-predictive SEW vector quantization for waveform interpolative coding | GRANT | 2006-03-07 | 2000-03-17 | 26886047 | Good | University of California | University of California |
| US4611342A | 0.597 | Digital voice compression having a digitally controlled AGC circuit and means for including the true gain in the compressed data | GRANT | 1986-09-09 | 1983-03-01 | 23870410 | Good | Racal Data Communications Inc | Racal Data Communications Inc |
| US4811398A | 0.597 | Method of and device for speech signal coding and decoding by subband analysis and vector quantization with dynamic bit allocation | GRANT | 1989-03-07 | 1985-12-17 | 11307553 | Good | CSELT Centro Studi e Laboratori Telecomunicazioni SpA | CSELT Centro Studi e Laboratori Telecomunicazioni SpA |
| US4860355A | 0.597 | Method of and device for speech signal coding and decoding by parameter extraction and vector quantization techniques | GRANT | 1989-08-22 | 1986-10-21 | 11305325 | Good | CSELT Centro Studi e Laboratori Telecomunicazioni SpA | CSELT Centro Studi e Laboratori Telecomunicazioni SpA |
| US6778953B1 | 0.595 | Method and apparatus for representing masked thresholds in a perceptual audio coder | GRANT | 2004-08-17 | 2000-06-02 | 24344184 | Good | Agere Systems LLC | Avago Technologies International Sales Pte Ltd, Nokia of America Corp |
| US6349277B1 | 0.594 | Method and system for analyzing voices | GRANT | 2002-02-19 | 1997-04-09 | 26432111 | Good | Panasonic Corp | Panasonic Intellectual Property Corp |
| US7917369B2 | 0.594 | Quality improvement techniques in an audio encoder | GRANT | 2011-03-29 | 2001-12-14 | 21779728 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| EP0545386A2 | 0.587 | Method for speech coding and voice-coder | GRANT | 1993-06-09 | 1991-12-03 | 18108816 | Good | NEC Corp | NEC Corp |
| US7643996B1 | 0.586 | Enhanced waveform interpolative coder | GRANT | 2010-01-05 | 1998-12-01 | 26808108 | Good | University of California | COMPANDENT Inc, University of California |
| US6449596B1 | 0.585 | Wideband audio signal encoding apparatus that divides wide band audio data into a number of sub-bands of numbers of bits for quantization based on noise floor information | GRANT | 2002-09-10 | 1996-02-08 | 26359481 | Good | Panasonic Corp | Panasonic Corp |
| US6526139B1 | 0.584 | Consolidated noise injection in a voice processing system | GRANT | 2003-02-25 | 1999-11-03 | 26859581 | Good | Tellabs Operations Inc | Coriant Operations Inc |
| US6275796B1 | 0.583 | Apparatus for quantizing spectral envelope including error selector for selecting a codebook index of a quantized LSF having a smaller error value and method therefor | GRANT | 2001-08-14 | 1997-04-23 | 19503612 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US5717825A | 0.581 | Algebraic code-excited linear prediction speech coding method | GRANT | 1998-02-10 | 1995-01-06 | 9474930 | Good | France Telecom SA | Orange SA |
| US9431020B2 | 0.581 | Methods for improving high frequency reconstruction | GRANT | 2016-08-30 | 2001-11-29 | 20286143 | Good | Dolby International AB | Dolby International AB |
| US5784532A | 0.578 | Application specific integrated circuit (ASIC) for performing rapid speech compression in a mobile telephone system | GRANT | 1998-07-21 | 1994-02-16 | 22729345 | Good | Qualcomm Inc | Qualcomm Inc |
| US6629068B1 | 0.578 | Calculating a postfilter frequency response for filtering digitally processed speech | GRANT | 2003-09-30 | 1998-10-13 | 10840505 | Good | Nokia Mobile Phones Ltd | Qualcomm Inc |
| US6088484A | 0.578 | Downloading of personalization layers for symbolically compressed objects | GRANT | 2000-07-11 | 1996-11-08 | 24997338 | Good | Hughes Electronics Corp | DirecTV Group Inc |
| US3995116A | 0.578 | Emphasis controlled speech synthesizer | GRANT | 1976-11-30 | 1974-11-18 | 24090667 | Good | Bell Telephone Laboratories Inc | AT&T Corp |
| US6438513B1 | 0.576 | Process for searching for a noise model in noisy audio signals | GRANT | 2002-08-20 | 1997-07-04 | 9508879 | Good | Thales Avionics SAS | Thales Avionics SAS |
| US5097508A | 0.575 | DIGITAL SPEECH CODER HAVING IMPROVED LONG TERM LAG PARAMETER DETERMINATION | GRANT | 1992-03-17 | 1989-08-31 | 23593968 | Good | Codex Corp | Motorola Solutions Inc |
| US5848384A | 0.575 | Analysis of audio quality using speech recognition and synthesis | GRANT | 1998-12-08 | 1994-08-18 | 8217819 | Good | British Telecommunications PLC | British Telecommunications PLC |
| US6658382B1 | 0.573 | Audio signal coding and decoding methods and apparatus and recording media with programs therefor | GRANT | 2003-12-02 | 1999-03-23 | 13623290 | Good | Nippon Telegraph and Telephone Corp | Nippon Telegraph and Telephone Corp |
| US7941313B2 | 0.573 | System and method for transmitting speech activity information ahead of speech features in a distributed voice recognition system | GRANT | 2011-05-10 | 2001-05-17 | 27360781 | Good | Qualcomm Inc | Qualcomm Inc, Speech Works International Inc |
| US6115687A | 0.569 | Sound reproducing speed converter | GRANT | 2000-09-05 | 1996-11-11 | 18031074 | Good | Panasonic Corp | III Holdings 12 LLC |
| US6122608A | 0.568 | Method for switched-predictive quantization | GRANT | 2000-09-19 | 1997-08-28 | 22008627 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6708145B1 | 0.567 | Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting | GRANT | 2004-03-16 | 1999-01-27 | 26663489 | Good | Coding Technologies Sweden AB | Dolby International AB |
| US6721700B1 | 0.565 | Audio coding method and apparatus | GRANT | 2004-04-13 | 1997-03-14 | 8548401 | Good | Nokia Mobile Phones Ltd | Nokia Technologies Oy |
| US5222189A | 0.565 | Low time-delay transform coder decoder and encoder/decoder for high-quality audio | GRANT | 1993-06-22 | 1989-01-27 | 27501835 | Good | Dolby Laboratories Licensing Corp | Dolby Laboratories Licensing Corp |
| US6704706B2 | 0.563 | Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec | GRANT | 2004-03-09 | 1999-05-27 | 23250806 | Good | America Online Inc | Facebook Inc |
| US6975984B2 | 0.562 | Electrolaryngeal speech enhancement for telephony | GRANT | 2005-12-13 | 2000-02-08 | 26876839 | Good | Speech Tech and Applied Res Corp | SPEECH TECHNOLOGY AND APPLIED RESEARCH Corp, Speech Tech and Applied Res Corp |
| US20010012993A1 | 0.561 | Coding method facilitating the reproduction as sound of digitized speech signals transmitted to a user terminal during a telephone call set up by transmitting packets and equipment implementing the method | APPLICATION | 2001-08-09 | 2000-02-03 | 8846606 | Good | Alcatel SA | Alcatel SA |
| US5479564A | 0.561 | Method and apparatus for manipulating pitch and/or duration of a signal | GRANT | 1995-12-26 | 1991-08-09 | 8207817 | Good | US Philips Corp | Nuance Communications Inc |
| US4799261A | 0.560 | Low data rate speech encoding employing syllable duration patterns | GRANT | 1989-01-17 | 1983-11-03 | 26788207 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US4609788A | 0.560 | Digital voice transmission having improved echo suppression | GRANT | 1986-09-02 | 1983-03-01 | 23870406 | Good | Racal Data Communications Inc | Racal Data Communications Inc |
| US5550924A | 0.560 | Reduction of background noise for speech enhancement | GRANT | 1996-08-27 | 1993-07-07 | 22200351 | Good | PictureTel Corp | Polycom Inc |
| US5864800A | 0.558 | Methods and apparatus for processing digital signals by allocation of subband signals and recording medium therefor | GRANT | 1999-01-26 | 1995-01-05 | 11468372 | Good | Sony Corp | Sony Corp |
| WO2000018057A1 | 0.556 | AUDIO CODER UTILISING REPEATED TRANSMISSION OF PACKET PORTION | APPLICATION | 2000-03-30 | 1998-09-22 | 10839284 | Good | ||
| US6611212B1 | 0.555 | Matrix improvements to lossless encoding and decoding | GRANT | 2003-08-26 | 1999-04-07 | 26315389 | Good | Dolby Laboratories Licensing Corp | Dolby Laboratories Licensing Corp |
| US6775654B1 | 0.554 | Digital audio reproducing apparatus | GRANT | 2004-08-10 | 1998-08-31 | 17146765 | Good | Fujitsu Ltd, FFC Ltd | Fujitsu Ltd, FFC Ltd |
| EP0446817A2 | 0.552 | Method for reducing the search complexity in analysis-by-synthesis coding | GRANT | 1991-09-18 | 1990-03-15 | 23962911 | Good | GTE Laboratories Inc | Verizon Laboratories Inc |
| US7742927B2 | 0.551 | Spectral enhancing method and device | GRANT | 2010-06-22 | 2000-04-18 | 29404161 | Good | Telediffusion de France ets Public de Diffusion, France Telecom SA | Telediffusion de France ets Public de Diffusion, Orange SA |
| US7606711B2 | 0.549 | Audio signal processing device signal recovering device audio signal processing method and signal recovering method | GRANT | 2009-10-20 | 2002-01-21 | 26625586 | Good | Kenwood KK | Rakuten Inc |
| US7457757B1 | 0.547 | Intelligibility control for speech communications systems | GRANT | 2008-11-25 | 2002-05-30 | 40029548 | Good | Plantronics Inc | Plantronics Inc |
| US7191121B2 | 0.542 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching | GRANT | 2007-03-13 | 1999-10-01 | 20417226 | Good | Coding Technologies Sweden AB | Dolby International AB |
| US5943347A | 0.541 | Apparatus and method for error concealment in an audio stream | GRANT | 1999-08-24 | 1996-06-07 | 24647501 | Good | Silicon Graphics Inc | Microsoft Technology Licensing LLC |
| US6092041A | 0.540 | System and method of encoding and decoding a layered bitstream by re-applying psychoacoustic analysis in the decoder | GRANT | 2000-07-18 | 1996-08-22 | 24816785 | Good | Motorola Solutions Inc | Google Technology Holdings LLC |
| US6765904B1 | 0.537 | Packet networks | GRANT | 2004-07-20 | 1999-08-10 | 32684527 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US5479562A | 0.536 | Method and apparatus for encoding and decoding audio information | GRANT | 1995-12-26 | 1989-01-27 | 27557190 | Good | Dolby Laboratories Licensing Corp | Dolby Laboratories Licensing Corp |
| US7280969B2 | 0.536 | Method and apparatus for producing natural sounding pitch contours in a speech synthesizer | GRANT | 2007-10-09 | 2000-12-07 | 24942287 | Good | International Business Machines Corp | Nuance Communications Inc |
| US5774856A | 0.536 | User-Customized low bit-rate speech vocoding method and communication unit for use therewith | GRANT | 1998-06-30 | 1995-10-02 | 24143248 | Good | Motorola Solutions Inc | CDC Propriete Intellectuelle |
| US6801499B1 | 0.534 | Diversity schemes for packet communications | GRANT | 2004-10-05 | 1999-08-10 | 33032559 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US7574351B2 | 0.533 | Arranging CELP information of one frame in a second packet | GRANT | 2009-08-11 | 1999-12-14 | 33510928 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US4797925A | 0.533 | Method for coding speech at low bit rates | GRANT | 1989-01-10 | 1986-09-26 | 25430850 | Good | Telcordia Technologies Inc | Telcordia Technologies Inc |
| US4817157A | 0.533 | Digital speech coder having improved vector excitation source | GRANT | 1989-03-28 | 1988-01-07 | 22495733 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US4802171A | 0.532 | Method for error correction in digitally encoded speech | GRANT | 1989-01-31 | 1987-06-04 | 22015337 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US4802223A | 0.532 | Low data rate speech encoding employing syllable pitch patterns | GRANT | 1989-01-31 | 1983-11-03 | 24188070 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6098039A | 0.531 | Audio encoding apparatus which splits a signal allocates and transmits bits and quantitizes the signal based on bits | GRANT | 2000-08-01 | 1998-02-18 | 12454212 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US6801532B1 | 0.531 | Packet reconstruction processes for packet communications | GRANT | 2004-10-05 | 1999-08-10 | 33032560 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US5109417A | 0.529 | Low bit rate transform coder decoder and encoder/decoder for high-quality audio | GRANT | 1992-04-28 | 1989-01-27 | 26973612 | Good | Dolby Laboratories Licensing Corp | Dolby Laboratories Licensing Corp |
| US5774839A | 0.527 | Delayed decision switched prediction multi-stage LSF vector quantization | GRANT | 1998-06-30 | 1995-09-29 | 24140347 | Good | Rockwell International Corp | Nytell Software LLC |
| US6804244B1 | 0.527 | Integrated circuits for packet communications | GRANT | 2004-10-12 | 1999-08-10 | 33100707 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US4015088A | 0.524 | Real-time speech analyzer | GRANT | 1977-03-29 | 1975-10-31 | 24516476 | Good | Bell Telephone Laboratories Inc | AT&T Corp |
| US20020040299A1 | 0.523 | Apparatus and method for performing orthogonal transform apparatus and method for performing inverse orthogonal transform apparatus and method for performing transform encoding and apparatus and method for encoding data | APPLICATION | 2002-04-04 | 2000-07-31 | 18725152 | Good | Sony Corp | Sony Corp |
| US5910960A | 0.523 | Signal processing apparatus and method | GRANT | 1999-06-08 | 1995-06-07 | 23910636 | Good | Discovision Associates | Chartoleaux KG LLC |
| US20040078194A1 | 0.523 | Source coding enhancement using spectral-band replication | APPLICATION | 2004-04-22 | 1997-06-10 | 27355877 | Good | Coding Technologies Sweden AB | Dolby International AB |
| US20010005365A1 | 0.522 | Method of facilitating the playback of speech signals transmitted at the beginning of a telephone call established over a packet exchange network and hardware for implementing the method | APPLICATION | 2001-06-28 | 1999-12-27 | 9553868 | Good | Alcatel SA | Provenance Asset Group LLC, Nokia USA Inc |
| US7124076B2 | 0.520 | Encoding apparatus and decoding apparatus | GRANT | 2006-10-17 | 2000-12-14 | 18848780 | Good | Sony Corp | Sony Corp |
| US5142656A | 0.520 | Low bit rate transform coder decoder and encoder/decoder for high-quality audio | GRANT | 1992-08-25 | 1989-01-27 | 27404962 | Good | Dolby Laboratories Licensing Corp | Dolby Laboratories Licensing Corp |
| US5635864A | 0.519 | Comparator circuit | GRANT | 1997-06-03 | 1995-06-07 | 10775695 | Good | Discovision Associates | Chartoleaux KG LLC |
| EP0838804A2 | 0.518 | Audio bandwidth extending system and method | GRANT | 1998-04-29 | 1996-10-24 | 17649810 | Good | Sony Corp | Sony Corp |
| US4809334A | 0.517 | Method for detection and correction of errors in speech pitch period estimates | GRANT | 1989-02-28 | 1987-07-09 | 22100148 | Good | Comsat Corp | Comsat Corp |
| US7324444B1 | 0.517 | Adaptive playout scheduling for multimedia communication | GRANT | 2008-01-29 | 2002-03-05 | 38973951 | Good | Leland Stanford Junior University | Leland Stanford Junior University |
| US5230038A | 0.509 | Low bit rate transform coder decoder and encoder/decoder for high-quality audio | GRANT | 1993-07-20 | 1989-01-27 | 27501836 | Good | ||
| US6564181B2 | 0.508 | Method and system for measurement of speech distortion from samples of telephonic voice signals | GRANT | 2003-05-13 | 1999-05-18 | 23217298 | Good | Worldcom Inc | Verizon Business Global LLC, Verizon Patent and Licensing Inc |
| US6505152B1 | 0.506 | Method and apparatus for using formant models in speech systems | GRANT | 2003-01-07 | 1999-09-03 | 23540210 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US5729556A | 0.505 | System decoder circuit with temporary bit storage and method of operation | GRANT | 1998-03-17 | 1993-02-22 | 26694146 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US5233629A | 0.502 | METHOD AND APPARATUS FOR COMMUNICATING DIGITAL DATA USING TRELLIS CODED QAM | GRANT | 1993-08-03 | 1991-07-26 | 24961105 | Good | Arris Technology Inc | Vizio Inc |
| US4972484A | 0.499 | Method of transmitting or storing masked sub-band coded audio signals | GRANT | 1990-11-20 | 1986-11-21 | 6314427 | Good | Bayerische Rundfunkwerbung GmbH | Bayerische Rundfunkwerbung GmbH |
| US7174135B2 | 0.492 | Wideband signal transmission system | GRANT | 2007-02-06 | 2001-06-28 | 8180561 | Good | Koninklijke Philips NV | Uniloc 2017 LLC |
| US5832425A | 0.491 | Phoneme recognition and difference signal for speech coding/decoding | GRANT | 1998-11-03 | 1994-10-04 | 23236246 | Good | Hughes Electronics Corp | DirecTV Group Inc |
| US5717818A | 0.487 | Audio signal storing apparatus having a function for converting speech speed | GRANT | 1998-02-10 | 1992-08-18 | 27322824 | Good | Hitachi Ltd | Hitachi Ltd |
| US5956672A | 0.487 | Wide-band speech spectral quantizer | GRANT | 1999-09-21 | 1996-08-16 | 16688831 | Good | NEC Corp | NEC Corp |
| US6477501B1 | 0.487 | Real-time lossless encoding and decoding system by moving excess data amounts and a method therefor | GRANT | 2002-11-05 | 1998-05-06 | 36848416 | Good | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US20050143983A1 | 0.483 | Speech recognition using dual-pass pitch tracking | APPLICATION | 2005-06-30 | 2001-04-24 | 25289346 | Good | Microsoft Corp | Microsoft Technology Licensing LLC |
| US6421802B1 | 0.483 | Method for masking defects in a stream of audio data | GRANT | 2002-07-16 | 1997-04-23 | 26036030 | Good | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV | Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV |
| US5058168A | 0.480 | OVERFLOW SPEECH DETECTING APPARATUS FOR SPEECH RECOGNITION | GRANT | 1991-10-15 | 1988-06-27 | 15677598 | Good | Toshiba Corp | Toshiba Corp |
| US5285498A | 0.479 | Method and apparatus for coding audio signals based on perceptual model | GRANT | 1994-02-08 | 1992-03-02 | 25293673 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US5592584A | 0.476 | Method and apparatus for two-component signal compression | GRANT | 1997-01-07 | 1992-03-02 | 25293716 | Good | Nokia of America Corp | Nokia of America Corp |
| US4864620A | 0.475 | Method for performing time-scale modification of speech information or speech signals | GRANT | 1989-09-05 | 1987-12-21 | 11058406 | Good | DSP Group Inc | DSP Group Inc |
| US4486899A | 0.474 | System for extraction of pole parameter values | GRANT | 1984-12-04 | 1981-03-17 | 26376393 | Good | NEC Corp | NEC Corp |
| WO2001086633A1 | 0.470 | VOICE ACTIVITY DETECTION AND END-POINT DETECTION | APPLICATION | 2001-11-15 | 2000-05-10 | 11454720 | Good | ||
| US7155385B2 | 0.468 | Automatic gain control for adjusting gain during non-speech portions | GRANT | 2006-12-26 | 2002-05-16 | 29418874 | Good | Comerica Bank California | Sangoma Us Inc, Comerica Bank California |
| US4004096A | 0.465 | Process for extracting pitch information | GRANT | 1977-01-18 | 1975-02-18 | 24199053 | Good | US Department of Army | US Department of Army |
| US6502068B1 | 0.463 | Multipulse search processing method and speech coding apparatus | GRANT | 2002-12-31 | 1999-09-17 | 17393548 | Good | NEC Corp | NEC Electronics Corp |
| US6671518B2 | 0.463 | Method and apparatus for transmitting voice information | GRANT | 2003-12-30 | 2001-11-19 | 26968934 | Good | Motorola Solutions Inc | Google Technology Holdings LLC |
| US5793818A | 0.461 | Signal processing system | GRANT | 1998-08-11 | 1995-06-07 | 10775686 | Good | Discovision Associates | Chartoleaux KG LLC |
| US5463641A | 0.460 | Tailored error protection | GRANT | 1995-10-31 | 1993-07-16 | 22234188 | Good | AT&T IPM Corp | AT&T Corp |
| US7092877B2 | 0.457 | Method for suppressing noise as well as a method for recognizing voice signals | GRANT | 2006-08-15 | 2001-07-31 | 27214529 | Good | Turk and Turk Electric GmbH | INTERTON ELECTRONIC HORGERATE GmbH, TURK & TURK ELECTRONIC GmbH |
| US6167085A | 0.454 | Image data compression | GRANT | 2000-12-26 | 1997-07-31 | 25418060 | Good | Sony Europe Ltd, Sony Corp | Sony Europe Ltd, Sony Corp |
| US5133013A | 0.453 | NOISE REDUCTION BY USING SPECTRAL DECOMPOSITION AND NON-LINEAR TRANSFORMATION | GRANT | 1992-07-21 | 1988-01-18 | 10630116 | Good | British Telecommunications PLC | British Telecommunications PLC |
| US6711538B1 | 0.450 | Information processing apparatus and method and recording medium | GRANT | 2004-03-23 | 1999-09-29 | 17564852 | Good | Sony Corp | Sony Corp |
| US6011824A | 0.440 | Signal-reproduction method and apparatus | GRANT | 2000-01-04 | 1996-09-06 | 16997893 | Good | Sony Corp | Sony Corp |
| US3706929A | 0.437 | COMBINED MODEM AND VOCODER PIPELINE PROCESSOR | GRANT | 1972-12-19 | 1971-01-04 | 22295545 | Good | Space Systems Loral LLC | Space Systems Loral LLC |
| US20030040918A1 | 0.437 | Data compression method | APPLICATION | 2003-02-27 | 2001-08-21 | 9920734 | Good | Micron Technology Inc | Micron Technology Inc |
| US5774851A | 0.431 | Speech recognition apparatus utilizing utterance length information | GRANT | 1998-06-30 | 1985-08-15 | 27553475 | Good | Canon Inc | Canon Inc |
| US5539859A | 0.430 | Method of using a dominant angle of incidence to reduce acoustic noise in a speech signal | GRANT | 1996-07-23 | 1992-02-18 | 9426753 | Good | Alcatel Lucent NV | Alcatel Lucent NV |
| US5870412A | 0.429 | Forward error correction system for packet based real time media | GRANT | 1999-02-09 | 1997-12-12 | 25535152 | Good | 3Com Corp | HP Inc, Hewlett Packard Enterprise Development LP |
| US5799276A | 0.428 | Knowledge-based speech recognition system and methods having frame length computed based upon estimated pitch period of vocalic intervals | GRANT | 1998-08-25 | 1995-11-07 | 24214999 | Good | Accent Inc | LEXIA LEARNING SYSTEMS LLC, Rosetta Stone Ltd |
| EP0637012A2 | 0.428 | Signal processing device | GRANT | 1995-02-01 | 1990-01-18 | 27454980 | Good | Panasonic Corp | Panasonic Corp |
| US4401855A | 0.425 | Apparatus for the linear predictive coding of human speech | GRANT | 1983-08-30 | 1980-11-28 | 22785636 | Good | University of California | CALIFORNIA A CORP OF, University of, Regents of, University of California |
| EP1335349A2 | 0.424 | Pitch extraction methods and systems for speech coding using multiple time lag extraction | GRANT | 2003-08-13 | 2002-02-06 | 27616486 | Good | Broadcom Corp | Broadcom Corp |
| US6889183B1 | 0.419 | Apparatus and method of regenerating a lost audio segment | GRANT | 2005-05-03 | 1999-07-15 | 34519843 | Good | Nortel Networks Ltd | RPX Clearinghouse LLC |
| WO2002080559A2 | 0.417 | DIGITAL TELEVISION SYSTEM | APPLICATION | 2002-10-10 | 2001-04-02 | 26761132 | Good | ||
| US6988067B2 | 0.416 | LSF quantizer for wideband speech coder | GRANT | 2006-01-17 | 2001-03-26 | 19707417 | Good | Electronics and Telecommunications Research Institute ETRI | Uniloc 2017 LLC |
| US6298057B1 | 0.412 | System and method for reliability transporting aural information across a network | GRANT | 2001-10-02 | 1996-04-19 | 24545717 | Good | Nortel Networks Ltd | RPX Clearinghouse LLC |
| EP0781051A2 | 0.410 | Hierarchical transmission of digital image signals | GRANT | 1997-06-25 | 1995-12-20 | 7780747 | Good | Deutsche Thomson Brandt GmbH | Deutsche Thomson Brandt GmbH |
| US7346516B2 | 0.405 | Method of segmenting an audio stream | GRANT | 2008-03-18 | 2002-02-21 | 29546250 | Good | LG Electronics Inc | LG Electronics Inc |
| US6725192B1 | 0.404 | Audio coding and quantization method | GRANT | 2004-04-20 | 1998-06-26 | 26465801 | Good | Ricoh Co Ltd | Ricoh Co Ltd |
| US5479560A | 0.403 | Formant detecting device and speech processing apparatus | GRANT | 1995-12-26 | 1992-10-30 | 17782026 | Good | Technology Research Association of Medical and Welfare Apparatus | TECHNOLOGY RESEARCH ASSOCIATION OF MEDICAL AN WELFARE APPARATUS, New Energy and Industrial Technology Development Organization |
| US6510413B1 | 0.401 | Distributed synthetic speech generation | GRANT | 2003-01-21 | 2000-06-29 | 24425598 | Good | Intel Corp | Intel Corp |
| US20030115043A1 | 0.395 | Error concealment in digital transmissions | APPLICATION | 2003-06-19 | 1991-04-06 | 6428931 | Good | Hanger Solutions LLC | DG FastChannel Inc |
| US9245534B2 | 0.385 | Spectral translation/folding in the subband domain | GRANT | 2016-01-26 | 2000-05-23 | 20279807 | Good | Dolby International AB | Dolby International AB |
| US7114072B2 | 0.384 | Apparatus and method for watermark embedding and detection using linear prediction analysis | GRANT | 2006-09-26 | 2000-12-30 | 19704047 | Good | Electronics and Telecommunications Research Institute ETRI | SEALTRONIC TECHNOLOGY Inc, Electronics and Telecommunications Research Institute ETRI |
| EP0303312A1 | 0.381 | Method and system for determining the variation of a speech parameter for example the pitch in a speech signal | GRANT | 1989-02-15 | 1987-07-30 | 19850395 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US4813075A | 0.379 | Method for determining the variation with time of a speech parameter and arrangement for carryin out the method | GRANT | 1989-03-14 | 1986-11-26 | 6314791 | Good | US Philips Corp | US Philips Corp |
| US5619004A | 0.377 | Method and device for determining the primary pitch of a music signal | GRANT | 1997-04-08 | 1995-06-07 | 23884060 | Good | Virtual DSP Corp | Virtual DSP Corp |
| US5455841A | 0.374 | Variable bit rate bandwidth compression transmission through a network having cell loss probability | GRANT | 1995-10-03 | 1991-07-22 | 26344363 | Good | NEC Corp | NEC Corp |
| US6009117A | 0.369 | Spread spectrum communication system | GRANT | 1999-12-28 | 1996-09-17 | 17118373 | Good | Toyota Industries Corp | Toyota Industries Corp |
| US20030195006A1 | 0.364 | Smart vocoder | APPLICATION | 2003-10-16 | 2001-10-16 | 25525049 | Good | Lockheed Martin Corp | Lockheed Martin Corp |
| US4975657A | 0.363 | Speech detector for automatic level control systems | GRANT | 1990-12-04 | 1989-11-02 | 23708597 | Good | Motorola Solutions Inc | Motorola Solutions Inc |
| US7420993B2 | 0.356 | Variable length code multiplexer and variable length code demultiplexer | GRANT | 2008-09-02 | 2001-09-04 | 19093705 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US6128317A | 0.356 | Transmitter and receiver supporting differing speed codecs over single links | GRANT | 2000-10-03 | 1997-12-22 | 25542575 | Good | Motorola Solutions Inc | Apple Inc |
| US5794203A | 0.347 | Biofeedback system for speech disorders | GRANT | 1998-08-11 | 1994-03-22 | 22807840 | Good | ||
| US4809331A | 0.343 | Apparatus and methods for speech analysis | GRANT | 1989-02-28 | 1985-11-12 | 10588116 | Good | National Research Development Corp UK | BTG International Ltd |
| US6760740B2 | 0.343 | Method of calculating line spectral frequencies | GRANT | 2004-07-06 | 2000-07-05 | 8171760 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US5602548A | 0.341 | Data output apparatus for variable length decoder | GRANT | 1997-02-11 | 1993-12-29 | 19373553 | Good | SK Hynix Inc | SK Hynix Inc |
| US5406632A | 0.337 | Method and device for correcting an error in high efficiency coded digital data | GRANT | 1995-04-11 | 1992-07-16 | 16614897 | Good | Yamaha Corp | Yamaha Corp |
| EP0138061A1 | 0.335 | Method of determining speech spectra with an application to automatic speech recognition and speech coding | GRANT | 1985-04-24 | 1983-09-29 | 6210452 | Good | Siemens AG | Siemens AG |
| US4074228A | 0.326 | ERROR CORRECTION OF DIGITAL SIGNALS | GRANT | 1978-02-14 | 1975-11-03 | 10438022 | Good | Post Office | Post Office |
| EP1096477A2 | 0.323 | Apparatus for converting reproducing speed and method of converting reproducing speed | GRANT | 2001-05-02 | 1999-10-26 | 17935277 | Good | Sony Corp | Sony Corp |
| US4700390A | 0.321 | Signal synthesizer | GRANT | 1987-10-13 | 1983-03-17 | 27275470 | Good | ||
| US7366661B2 | 0.319 | Information extracting device | GRANT | 2008-04-29 | 2000-12-14 | 18848782 | Good | Sony Corp | Sony Corp |
| US6487686B1 | 0.318 | Error correction method and transmission apparatus | GRANT | 2002-11-26 | 1998-12-28 | 18504459 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US4888806A | 0.310 | Computer speech system | GRANT | 1989-12-19 | 1987-05-29 | 22004824 | Good | ANIMATED VOICE CORP | ANIMATED VOICE Corp A CORP OF, ANIMATED VOICE CORP |
| US5890105A | 0.310 | Low bit rate coding system for high speed compression of speech data | GRANT | 1999-03-30 | 1994-11-30 | 17831312 | Good | Fujitsu Ltd | Fujitsu Ltd |
| US4297528A | 0.304 | Training circuit for audio signal recognition computer | GRANT | 1981-10-27 | 1979-09-10 | 22115757 | Good | Interstate Electronics Corp | GTE Wireless Inc |
| US6192336B1 | 0.295 | Method and system for searching for an optimal codevector | GRANT | 2001-02-20 | 1996-09-30 | 24904405 | Good | Apple Computer Inc | Apple Inc |
| US6584442B1 | 0.293 | Method and apparatus for compressing and generating waveform | GRANT | 2003-06-24 | 1999-03-25 | 27303982 | Good | Yamaha Corp | Yamaha Corp |
| US6668015B1 | 0.288 | Efficient fixed-length block compression and decompression | GRANT | 2003-12-23 | 1996-12-18 | 29737979 | Good | Thomson Licensing SAS | Thomson Licensing DTV SAS |
| EP0649257A2 | 0.283 | Transmission system minimizing interference in digital transmission | GRANT | 1995-04-19 | 1993-10-13 | 22472804 | Good | Koninklijke Philips NV | Koninklijke Philips NV |
| US6424794B1 | 0.281 | Data structure for representing a program containing components organized in a series of data blocks | GRANT | 2002-07-23 | 1993-10-29 | 22510149 | Good | Time Warner Entertainment Co LP | Warner Bros Home Entertainment Inc, Warner Communications LLC |
| US7043145B2 | 0.276 | Method of distributing multimedia presentations in different formats on optical discs | GRANT | 2006-05-09 | 1993-10-29 | 27495643 | Good | Warner Home Video Inc | Warner Bros Home Entertainment Inc |
| US6324409B1 | 0.256 | System and method for optimizing telecommunication signal quality | GRANT | 2001-11-27 | 1998-07-17 | 22379391 | Good | Siemens Information and Communication Networks Inc | Unify GmbH and Co KG, Enterprise Systems Technologies SARL, Unify Inc |
| US6681364B1 | 0.224 | Cyclic redundancy check for partitioned frames | GRANT | 2004-01-20 | 1999-09-24 | 30001012 | Good | International Business Machines Corp | International Business Machines Corp |
| US3511932A | NR | SELF-OSCILLATING VOCAL TRACT EXCITATION SOURCE | GRANT | 1970-05-12 | 1967-08-29 | 24664663 | Good | Bell Telephone Laboratories Inc | AT&T Corp |
| KR100804888B1 | NR | A PREDICTIVE SPEECH CODER USING CODING SCHEME SELECTION PATTERNS TO REDUCE SENSITIVITY TO FRAME ERRORS | GRANT | 2008-02-20 | 1999-10-28 | 23704610 | Good | ||
| KR100576024B1 | NR | CODEBOOK SEARCHING APPARATUS AND METHOD IN A SPEECH COMPRESSOR HAVING AN ACELP STRUCTURE | GRANT | 2006-05-02 | 2000-04-12 | 19663987 | Good | ||
| KR100438175B1 | NR | No title | GRANT | 2004-07-01 | 2001-10-23 | 19715315 | Good | ||
| KR100409167B1 | NR | No title | GRANT | 2003-12-12 | 1998-09-11 | 22538745 | Good | ||
| KR100294918B1 | NR | METHOD FOR MODELING AMPLITUDE OF SPECTRALLY MIXED EXCITATION SIGNAL | GRANT | 2001-07-12 | 1998-04-09 | 37527651 | Good | ||
| JPH10260698A | NR | SIGNAL ENCODING DEVICE | GRANT | 1998-09-29 | 1997-03-21 | 13350720 | Good | ||
| JPH09281998A | NR | VOICE CODING DEVICE | GRANT | 1997-10-31 | 1996-04-17 | 14136971 | Good | ||
| JPH09281996A | NR | VOICED SOUND/UNVOICED SOUND DECISION METHOD AND APPARATUS THEREFOR AND SPEECH ENCODING METHOD | GRANT | 1997-10-31 | 1996-04-15 | 14065856 | Good | ||
| GB2324689A | NR | Dual subframe quantisation of spectral magnitudes | GRANT | 1998-10-28 | 1997-03-14 | 25224767 | Good | Digital Voice Systems Inc | Digital Voice Systems Inc |
| FR2796189A1 | NR | No title | GRANT | 2001-01-12 | 1999-07-05 | 9547702 | Good | Matra Nortel Communications SAS | Nortel Networks France SAS |
| DE19609170A1 | NR | No title | GRANT | 1996-09-19 | 1995-03-10 | 27017596 | Good | Universite de Sherbrooke | Universite de Sherbrooke |
| CN1263625A | NR | Method for decoding audio signal with transmission error correction | GRANT | 2000-08-16 | 1998-02-06 | 9522700 | Good | ||
| CN1243615A | NR | Method and apparatus for controlling signal amplitude level | GRANT | 2000-02-02 | 1997-09-05 | 25450490 | Good | ||
| CA2388358A1 | NR | A METHOD AND DEVICE FOR MULTI-RATE LATTICE VECTOR QUANTIZATION | GRANT | 2003-11-30 | 2002-05-31 | 29589087 | Good | VoiceAge Corp | VoiceAge Corp |
| US6721327B1 | 1.106 | Delayed packet concealment method and apparatus | GRANT | 2004-04-13 | 1998-05-14 | 20411339 | Fair | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5400434A | 0.945 | Voice source for synthetic speech system | GRANT | 1995-03-21 | 1990-09-04 | 26710365 | Fair | Panasonic Corp | Panasonic Corp |
| US5091948A | 0.918 | Speaker recognition with glottal pulse-shapes | GRANT | 1992-02-25 | 1989-03-16 | 13195146 | Fair | NEC Corp | NEC Corp |
| WO2003026136A1 | 0.874 | ENCODER REDUNDANCY SELECTION SYSTEM AND METHOD | APPLICATION | 2003-03-27 | 2001-09-14 | 25492656 | Fair | ||
| US7505594B2 | 0.858 | Discontinuous transmission (DTX) controller system and method | GRANT | 2009-03-17 | 2000-12-19 | 24983257 | Fair | Qualcomm Inc | Qualcomm Inc |
| US20030167170A1 | 0.829 | Method and arrangement in a communication system | APPLICATION | 2003-09-04 | 1999-12-28 | 20418334 | Fair | Global IP Sound AB | Global IP Solutions GIPS AB, Google LLC |
| US6792405B2 | 0.809 | Bitstream-based feature extraction method for a front-end speech recognizer | GRANT | 2004-09-14 | 1999-12-10 | 26865790 | Fair | AT&T Corp | Nuance Communications Inc |
| US5323424A | 0.796 | Multistage decoder | GRANT | 1994-06-21 | 1991-03-29 | 9411278 | Fair | US Philips Corp | Funai Electric Co Ltd |
| US7009935B2 | 0.736 | Transmission over packet switched networks | GRANT | 2006-03-07 | 2000-05-10 | 20279621 | Fair | Global IP Sound AB | Global IP Solutions GIPS AB, Google LLC |
| US6601206B1 | 0.729 | Error concealment or correction of speech image and video signals | GRANT | 2003-07-29 | 1998-12-04 | 8235189 | Fair | Agere Systems LLC | Avago Technologies General IP Singapore Pte Ltd, Nokia of America Corp |
| US6055499A | 0.704 | Use of periodicity and jitter for automatic speech recognition | GRANT | 2000-04-25 | 1998-05-01 | 22099967 | Fair | Nokia of America Corp | Nokia of America Corp |
| US6754203B2 | 0.698 | Method and program product for organizing data into packets | GRANT | 2004-06-22 | 2001-11-27 | 26797285 | Fair | University of Illinois | University of Illinois |
| US6636565B1 | 0.694 | Method for concealing error | GRANT | 2003-10-21 | 1999-01-12 | 19571083 | Fair | LG Electronics Inc | LG Electronics Inc |
| US6006175A | 0.687 | Methods and apparatus for non-acoustic speech characterization and recognition | GRANT | 1999-12-21 | 1996-02-06 | 24392161 | Fair | University of California | Lawrence Livermore National Security LLC |
| US6470470B2 | 0.671 | Information coding method and devices utilizing error correction and error detection | GRANT | 2002-10-22 | 1997-02-07 | 8548148 | Fair | Nokia Mobile Phones Ltd | Nokia Technologies Oy |
| US5353059A | 0.668 | Data error concealment | GRANT | 1994-10-04 | 1992-01-09 | 10708350 | Fair | Sony Europe Ltd | Sony Europe Ltd |
| US5491513A | 0.655 | Bit rate controller for encoding video signals | GRANT | 1996-02-13 | 1993-06-16 | 26761126 | Fair | Intel Corp | Intel Corp |
| USRE43209E1 | 0.651 | Speech coding apparatus and speech decoding apparatus | GRANT | 2012-02-21 | 1999-11-08 | 45561626 | Fair | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US7016833B2 | 0.650 | Speaker verification system using acoustic data and non-acoustic data | GRANT | 2006-03-21 | 2000-11-21 | 34278089 | Fair | University of California | Lawrence Livermore National Security LLC |
| US4827339A | 0.648 | Moving picture signal transmission system | GRANT | 1989-05-02 | 1986-02-20 | 12396034 | Fair | Kokusai Denshin Denwa KK | Kokusai Denshin Denwa KK |
| US5247363A | 0.639 | ERROR CONCEALMENT APPARATUS FOR HDTV RECEIVERS | GRANT | 1993-09-21 | 1992-03-02 | 25292386 | Fair | RCA Licensing Corp | RCA Licensing Corp |
| WO1999052224A1 | 0.631 | METHOD FOR UPDATING FORWARD POWER CONTROL IN A COMMUNICATION SYSTEM | APPLICATION | 1999-10-14 | 1998-04-08 | 22008911 | Fair | ||
| US4809067A | 0.624 | Method and apparatus for encoding transmitting and receiving image by pulse code modulation | GRANT | 1989-02-28 | 1986-05-26 | 27526876 | Fair | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US5122875A | 0.619 | An HDTV compression system | GRANT | 1992-06-16 | 1991-02-27 | 24655956 | Fair | General Electric Co | General Electric Co |
| US7958532B2 | 0.618 | Method of transmitting layered video-coded information | GRANT | 2011-06-07 | 2001-06-18 | 25379753 | Fair | AT&T Intellectual Property II LP | AT&T Corp, AT&T Intellectual Property II LP |
| US7072291B1 | 0.612 | Devices softwares and methods for redundantly encoding a data stream for network transmission with adjustable redundant-coding delay | GRANT | 2006-07-04 | 2001-08-23 | 36613788 | Fair | Cisco Technology Inc | Cisco Technology Inc |
| US5274740A | 0.605 | Decoder for variable number of channel presentation of multidimensional sound fields | GRANT | 1993-12-28 | 1991-01-08 | 27093203 | Fair | Dolby Laboratories Licensing Corp | Dolby Laboratories Licensing Corp |
| US4554670A | 0.605 | System and method for ADPCM transmission of speech or like signals | GRANT | 1985-11-19 | 1982-04-14 | 27298024 | Fair | NEC Corp | NEC Corp |
| US6560575B1 | 0.602 | Speech processing apparatus and method | GRANT | 2003-05-06 | 1998-10-20 | 10840935 | Fair | Canon Inc | Canon Inc |
| US5477397A | 0.595 | Digital high definition television receiver with features that facilitate trick-play modes on a digital VCR | GRANT | 1995-12-19 | 1993-02-23 | 22115813 | Fair | Panasonic Corp of North America | Panasonic Corp of North America |
| US8050321B2 | 0.582 | Grouping of image frames in video coding | GRANT | 2011-11-01 | 2002-01-23 | 27614673 | Fair | Nokia Oyj | Nokia Oyj |
| US5515107A | 0.579 | Method of encoding a stream of motion picture data | GRANT | 1996-05-07 | 1994-03-30 | 22824643 | Fair | Sigma Designs Inc | Sigma Designs Inc |
| US5425061A | 0.574 | Method and apparatus for bit stream synchronization | GRANT | 1995-06-13 | 1993-06-07 | 22103290 | Fair | Texas Instruments Inc | Texas Instruments Inc |
| US5231384A | 0.570 | APPARATUS FOR SPLITTING VIDEO SIGNAL BETWEEN TWO CHANNELS | GRANT | 1993-07-27 | 1991-08-26 | 25016769 | Fair | General Electric Co | General Electric Co |
| EP1098527A1 | 0.564 | Picture coding apparatus and decoding apparatus | GRANT | 2001-05-09 | 1994-11-04 | 27335924 | Fair | Panasonic Corp | Panasonic Corp |
| US6414972B1 | 0.561 | Signal decoding method signal decoding apparatus signal multiplexing method signal multiplexing apparatus and recording medium | GRANT | 2002-07-02 | 1997-02-20 | 12458955 | Fair | Panasonic Corp | Panasonic Corp |
| US5748784A | 0.551 | Moving image signal coding apparatus and coded signal decoding apparatus | GRANT | 1998-05-05 | 1991-11-08 | 18131790 | Fair | Victor Company of Japan Ltd | Victor Company of Japan Ltd |
| US5241382A | 0.550 | Digital HDTV data packet format and receiver therefor | GRANT | 1993-08-31 | 1992-04-25 | 25358603 | Fair | Arris Technology Inc | Arris Technology Inc |
| US4707857A | 0.549 | Voice command recognition system having compact significant feature data | GRANT | 1987-11-17 | 1984-08-27 | 24586235 | Fair | ||
| US5326349A | 0.546 | Artificial larynx | GRANT | 1994-07-05 | 1992-07-09 | 25428476 | Fair | ||
| US7894521B2 | 0.543 | Grouping of image frames in video coding | GRANT | 2011-02-22 | 2002-01-23 | 8562891 | Fair | Nokia Oyj | Nokia Technologies Oy |
| US5781561A | 0.539 | Encoding apparatus for hierarchically encoding image signal and decoding apparatus for decoding the image signal hierarchically encoded by the encoding apparatus | GRANT | 1998-07-14 | 1995-03-16 | 26424548 | Fair | Panasonic Corp | Panasonic Corp |
| US6678267B1 | 0.536 | Wireless telephone with excitation reconstruction of lost packet | GRANT | 2004-01-13 | 1999-08-10 | 29782230 | Fair | Texas Instruments Inc | Texas Instruments Inc |
| US6744757B1 | 0.535 | Private branch exchange systems for packet communications | GRANT | 2004-06-01 | 1999-08-10 | 32328625 | Fair | Texas Instruments Inc | Texas Instruments Inc |
| US5742347A | 0.526 | Efficient support for interactive playout of videos | GRANT | 1998-04-21 | 1994-09-19 | 23195297 | Fair | International Business Machines Corp | International Business Machines Corp |
| US7212517B2 | 0.524 | Method and apparatus for jitter and frame erasure correction in packetized voice communication systems | GRANT | 2007-05-01 | 2001-04-09 | 25254169 | Fair | Nokia of America Corp | Nokia of America Corp |
| US6373842B1 | 0.524 | Unidirectional streaming services in wireless systems | GRANT | 2002-04-16 | 1998-11-19 | 22721279 | Fair | Nortel Networks Ltd | Microsoft Technology Licensing LLC |
| US8767969B1 | 0.523 | Process for removing voice from stereo recordings | GRANT | 2014-07-01 | 1999-09-27 | 50982147 | Fair | Creative Technology Ltd | Creative Technology Ltd |
| US6757256B1 | 0.522 | Process of sending packets of real-time information | GRANT | 2004-06-29 | 1999-08-10 | 32510879 | Fair | Texas Instruments Inc | Texas Instruments Inc |
| EP1478190A1 | 0.516 | IMAGE ENCODING DEVICE IMAGE DECODING DEVICE IMAGE ENCODING METHOD IMAGE DECODING METHOD IMAGE ENCODING PROGRAM AND IMAGE DECODING PROGRAM | GRANT | 2004-11-17 | 2002-04-26 | 32180613 | Fair | NTT Docomo Inc | NTT Docomo Inc |
| US5533138A | 0.515 | Image compression encoding and decoding method and apparatus therefor | GRANT | 1996-07-02 | 1992-03-13 | 25309742 | Fair | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US5522013A | 0.510 | Method for speaker recognition using a lossless tube model of the speaker's | GRANT | 1996-05-28 | 1991-04-30 | 26158950 | Fair | Nokia Networks Oy | Nokia Networks Oy |
| US20070198899A1 | 0.509 | LOW COMPLEXITY CHANNEL DECODERS | APPLICATION | 2007-08-23 | 2001-06-12 | 25376895 | Fair | Intel Corp | Intel Corp |
| US6456663B1 | 0.506 | DCT domain down conversion system that compensates for IDCT mismatch | GRANT | 2002-09-24 | 2000-03-29 | 24142269 | Fair | Panasonic Corp | Panasonic Corp |
| US5625571A | 0.502 | Prediction filter | GRANT | 1997-04-29 | 1994-03-24 | 10752475 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US6438317B1 | 0.501 | Encoded stream generating apparatus and method data transmission system and method and editing system and method | GRANT | 2002-08-20 | 1997-09-25 | 17342377 | Fair | Sony Corp | Sony Corp |
| EP0595403A1 | 0.499 | Device for coding digital signals representative of images and corresponding decoding device | GRANT | 1994-05-04 | 1992-10-28 | 9434940 | Fair | Philips Research Suresnes, Koninklijke Philips NV | Philips Research Suresnes, Koninklijke Philips NV |
| US6081300A | 0.496 | Apparatus and method for generating on-screen-display messages using stored bitstreams | GRANT | 2000-06-27 | 1995-05-24 | 26307083 | Fair | Thomson Consumer Electronics Inc | Technicolor USA Inc |
| US4858005A | 0.495 | System for encoding broadcast quality television signals to enable transmission as an embedded code | GRANT | 1989-08-15 | 1986-02-17 | 10593189 | Fair | Independent Broadcasting Authority | Independent Broadcasting Authority |
| US6931062B2 | 0.494 | Decoding system and method for proper interpolation for motion compensation | GRANT | 2005-08-16 | 2001-04-11 | 25262162 | Fair | Koninklijke Philips NV | LG Electronics Inc |
| US7162045B1 | 0.493 | Sound processing method and apparatus | GRANT | 2007-01-09 | 1999-06-22 | 26497027 | Fair | Yamaha Corp | Yamaha Corp |
| US6961432B1 | 0.492 | Multidescriptive coding technique for multistream communication of signals | GRANT | 2005-11-01 | 1999-04-29 | 35150848 | Fair | Agere Systems LLC | Avago Technologies General IP Singapore Pte Ltd, Nokia of America Corp |
| US5684893A | 0.491 | Image signal processing apparatus | GRANT | 1997-11-04 | 1992-06-29 | 16333247 | Fair | Canon Inc | Canon Inc |
| US7130793B2 | 0.491 | System and method for minimizing overrun and underrun errors in packetized voice transmission | GRANT | 2006-10-31 | 2002-04-05 | 28674137 | Fair | Avaya Technology LLC | Avaya Inc |
| US6075974A | 0.490 | Method and apparatus for adjusting thresholds and measurements of received signals by anticipating power control commands yet to be executed | GRANT | 2000-06-13 | 1996-11-20 | 25028174 | Fair | Qualcomm Inc | Qualcomm Inc |
| EP0613306A2 | 0.485 | Apparatus for controlling quantizing in a video signal compressor | GRANT | 1994-08-31 | 1993-02-22 | 21801295 | Fair | RCA Licensing Corp | RCA Licensing Corp |
| US5589993A | 0.480 | Digital high definition television video recorder with trick-play features | GRANT | 1996-12-31 | 1993-02-23 | 21803174 | Fair | Panasonic Corp of North America | Panasonic Corp of North America |
| US5386239A | 0.476 | Multiple QAM digital television signal decoder | GRANT | 1995-01-31 | 1993-05-03 | 21997188 | Fair | Thomson Consumer Electronics Inc | Technicolor USA Inc |
| US6505222B1 | 0.475 | Systems methods and computer program products for controlling undesirable bias in an equalizer | GRANT | 2003-01-07 | 1999-10-29 | 23708160 | Fair | International Business Machines Corp | International Business Machines Corp |
| US6529086B2 | 0.470 | Encoding/decoding apparatus for orientation interpolator node data | GRANT | 2003-03-04 | 2000-10-20 | 36101286 | Fair | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US6980694B2 | 0.469 | Picture decoding apparatus picture decoding method and recording medium for storing the picture decoding method | GRANT | 2005-12-27 | 1999-05-13 | 28396672 | Fair | Sony Corp | Sony Corp |
| US5243419A | 0.468 | Soft coding for HDTV | GRANT | 1993-09-07 | 1991-10-31 | 25136262 | Fair | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp |
| US4903125A | 0.464 | Method and apparatus for conveying information signals | GRANT | 1990-02-20 | 1986-04-17 | 10596382 | Fair | British Broadcasting Corp | British Broadcasting Corp |
| US4745474A | 0.461 | Two resolution level DPCM system | GRANT | 1988-05-17 | 1987-04-17 | 21911146 | Fair | General Electric Co | General Electric Co, RCA Corp |
| US5453797A | 0.460 | Method and apparatus for decoding broadcast digital HDTV in the presence of quasi-cyclostationary interference | GRANT | 1995-09-26 | 1993-02-22 | 21801713 | Fair | Massachusetts Institute of Technology | Massachusetts Institute of Technology |
| US5481543A | 0.460 | Rational input buffer arrangements for auxiliary information in video and audio signal processing systems | GRANT | 1996-01-02 | 1993-03-16 | 26471239 | Fair | Sony Corp | Sony Corp |
| US6289129B1 | 0.456 | Video rate buffer for use with push dataflow | GRANT | 2001-09-11 | 1998-06-19 | 26781410 | Fair | Motorola Solutions Inc, Arris Technology Inc | St Elizabeths Medical Center of Boston Inc, Google Technology Holdings LLC |
| US5734783A | 0.452 | Variable length code recording/playback apparatus | GRANT | 1998-03-31 | 1992-03-24 | 27464698 | Fair | Toshiba Corp | Toshiba Corp |
| US4394774A | 0.452 | Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback | GRANT | 1983-07-19 | 1978-12-15 | 26958825 | Fair | Compression Labs Inc | MAGNITUDE COMPRESSION SYSTEMS Inc |
| US6608935B2 | 0.451 | Picture encoding method and apparatus picture decoding method and apparatus and furnishing medium | GRANT | 2003-08-19 | 1998-06-26 | 16097751 | Fair | Sony Corp | Sony Corp |
| US5365272A | 0.450 | Method for formatting compressed video data into transport cells | GRANT | 1994-11-15 | 1992-06-19 | 25413511 | Fair | General Electric Co | General Electric Co |
| US5313279A | 0.449 | Digital carrier combining apparatus in a multiple QAM digital television signal receiver | GRANT | 1994-05-17 | 1992-09-10 | 10721721 | Fair | Thomson Consumer Electronics Inc | Technicolor USA Inc |
| US5555193A | 0.444 | Video compression system with editing flag | GRANT | 1996-09-10 | 1993-05-25 | 22067857 | Fair | Toshiba Corp | Toshiba Corp |
| US7075991B1 | 0.444 | Apparatus for encoding and decoding header data in picture signal transmission | GRANT | 2006-07-11 | 1993-01-18 | 35136397 | Fair | Sony Corp | Sony Corp |
| US6546113B1 | 0.444 | Method and apparatus for video watermarking | GRANT | 2003-04-08 | 1999-03-02 | 22989457 | Fair | Leitch Technology International Inc | 0960471 Bc Unlimited Liability Co, HB CANADA COMMUNICATIONS Ltd |
| US20030012137A1 | 0.442 | Controlling network congestion using a biased packet discard policy for congestion control and encoded session packets: methods systems and program products | APPLICATION | 2003-01-16 | 2001-07-16 | 25422546 | Fair | International Business Machines Corp | Verizon Media Inc |
| US3670107A | 0.440 | WORD AND LETTER SPACING ARRANGEMENT FOR HUMAN-SPEECH TYPEWRITERS | GRANT | 1972-06-13 | 1970-12-14 | 22265648 | Fair | ||
| US7184951B2 | 0.438 | Methods and systems for generating phase-derivative sound | GRANT | 2007-02-27 | 2002-02-15 | 27732471 | Fair | Radiodetection Ltd | Radiodetection Ltd |
| US6714683B1 | 0.438 | Wavelet based feature modulation watermarks and related applications | GRANT | 2004-03-30 | 2000-08-24 | 30116233 | Fair | Digimarc Corp | Digimarc Corp |
| US6124898A | 0.435 | Digital television receiver with equalization performed on digital intermediate-frequency signals | GRANT | 2000-09-26 | 1998-06-19 | 27376367 | Fair | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US5835144A | 0.435 | Methods of coding and decoding moving-picture signals using self-resynchronizing variable-length codes | GRANT | 1998-11-10 | 1994-10-13 | 17171355 | Fair | Oki Electric Industry Co Ltd | Inphi Corp |
| US7558324B2 | 0.433 | Apparatus for encoding and decoding header data in picture signal transmission | GRANT | 2009-07-07 | 1993-01-18 | 34117699 | Fair | Sony Corp | Sony Corp |
| US5287178A | 0.430 | Reset control network for a video signal encoder | GRANT | 1994-02-15 | 1992-07-06 | 25427315 | Fair | General Electric Co | General Electric Co |
| US5079771A | 0.429 | BIT AND SYMBOL TIMING RECOVERY FOR SEQUENTIAL DECODERS | GRANT | 1992-01-07 | 1988-05-24 | 14969671 | Fair | NEC Corp | NEC Corp |
| US6144799A | 0.429 | Method and apparatus of retrieving voice coded data and moving image coded data | GRANT | 2000-11-07 | 1996-05-24 | 15017092 | Fair | Hitachi Denshi KK | Hitachi Denshi KK |
| US8913667B2 | 0.428 | Video decoding system having a programmable variable-length decoder | GRANT | 2014-12-16 | 1999-11-09 | 31499510 | Fair | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US6249610B1 | 0.428 | Apparatus and method for coding a picture and apparatus and method for decoding a picture | GRANT | 2001-06-19 | 1996-06-19 | 26399929 | Fair | Panasonic Corp | Panasonic Corp |
| US5850258A | 0.423 | High level video decoding apparatus capable of decoding video data of a plurality of channels coded at a lower level | GRANT | 1998-12-15 | 1995-03-21 | 19410300 | Fair | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US4742519A | 0.421 | Apparatus for decoding error correcting code | GRANT | 1988-05-03 | 1985-05-21 | 26448695 | Fair | Sony Corp | Sony Corp |
| US4799059A | 0.416 | Automatic/remote RF instrument monitoring system | GRANT | 1989-01-17 | 1986-03-14 | 25280903 | Fair | ENSCAN Inc | ENSCAN Inc A CORP OF, Itron Inc |
| US5818530A | 0.413 | MPEG compatible decoder including a dual stage data reduction network | GRANT | 1998-10-06 | 1996-06-19 | 24675415 | Fair | Thomson Consumer Electronics Inc | Technicolor USA Inc |
| EP0123456A2 | 0.411 | A combined intraframe and interframe transform coding method | GRANT | 1984-10-31 | 1983-03-28 | 23905336 | Fair | Compression Labs Inc | Compression Labs Inc |
| US6052814A | 0.409 | Coding/decoding apparatus | GRANT | 2000-04-18 | 1994-04-19 | 14391991 | Fair | Canon Inc | Canon Inc |
| US3770892A | 0.408 | CONNECTED WORD RECOGNITION SYSTEM | GRANT | 1973-11-06 | 1972-05-26 | 22975512 | Fair | International Business Machines Corp | International Business Machines Corp |
| US7660353B2 | 0.406 | Picture level adaptive frame/field coding for digital video content | GRANT | 2010-02-09 | 2001-11-27 | 27578791 | Fair | Arris Technology Inc | Google Technology Holdings LLC |
| US5473726A | 0.405 | Audio and amplitude modulated photo data collection for speech recognition | GRANT | 1995-12-05 | 1993-07-06 | 22199489 | Fair | US Air Force | UNITED STATES AMERICA AIR FORCE, Secretary of, US Air Force |
| US7095783B1 | 0.405 | Multistandard video decoder and decompression system for processing encoded bit streams including start codes and methods relating thereto | GRANT | 2006-08-22 | 1992-06-30 | 27562083 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US5095392A | 0.405 | Digital signal magnetic recording/reproducing apparatus using multi-level QAM modulation and maximum likelihood decoding | GRANT | 1992-03-10 | 1988-01-27 | 26352312 | Fair | Panasonic Corp | Panasonic Corp |
| EP0725541A2 | 0.402 | Image information encoding/decoding system | GRANT | 1996-08-07 | 1995-02-03 | 11912807 | Fair | Toshiba Corp | Toshiba Corp |
| US6330665B1 | 0.402 | Video parser | GRANT | 2001-12-11 | 1992-06-30 | 27562086 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US7061913B1 | 0.401 | Method and apparatus for delayed frame detection in third generation radio link protocol | GRANT | 2006-06-13 | 2000-08-25 | 24601615 | Fair | Qualcomm Inc | Qualcomm Inc |
| US6320907B1 | 0.401 | Adaptive tree-search vector quantization in MPEG2 decoder | GRANT | 2001-11-20 | 1997-11-24 | 8230869 | Fair | STMicroelectronics SRL | STMicroelectronics SRL |
| US5262854A | 0.397 | Lower resolution HDTV receivers | GRANT | 1993-11-16 | 1992-02-21 | 25279009 | Fair | RCA Licensing Corp | RCA Licensing Corp |
| US5262853A | 0.396 | Video signal encoder capable of encoding video signal data of video signals having both conventional and greater aspect ratios while maintaining transformation block at a constant length | GRANT | 1993-11-16 | 1991-02-06 | 11881959 | Fair | Panasonic Corp | Panasonic Corp |
| US5589885A | 0.391 | Moving picture coding and decoding circuit | GRANT | 1996-12-31 | 1992-03-17 | 13091726 | Fair | NEC Corp | Renesas Electronics Corp |
| US6326999B1 | 0.389 | Data rate conversion | GRANT | 2001-12-04 | 1994-08-23 | 10760360 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US6804566B1 | 0.388 | Method for continuously controlling the quality of distributed digital sounds | GRANT | 2004-10-12 | 1999-10-01 | 9550499 | Fair | Telediffusion de France ets Public de Diffusion, France Telecom SA | Telediffusion de France ets Public de Diffusion, Orange SA |
| US5805914A | 0.386 | Data pipeline system and data encoding method | GRANT | 1998-09-08 | 1993-06-24 | 27374248 | Fair | Discovision Associates | Discovision Associates |
| US5479209A | 0.385 | Preprocessor for moving picture encoding | GRANT | 1995-12-26 | 1993-05-17 | 14615489 | Fair | NEC Corp | NEC Corp |
| US5835740A | 0.383 | Data pipeline system and data encoding method | GRANT | 1998-11-10 | 1992-06-30 | 46251460 | Fair | Discovision Associates | Discovision Associates |
| US6112017A | 0.382 | Pipeline processing machine having a plurality of reconfigurable processing stages interconnected by a two-wire interface bus | GRANT | 2000-08-29 | 1992-06-30 | 27545634 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US5809270A | 0.381 | Inverse quantizer | GRANT | 1998-09-15 | 1992-06-30 | 27562087 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US6385261B1 | 0.381 | Impulse noise detector and noise reduction system | GRANT | 2002-05-07 | 1998-01-19 | 11677080 | Fair | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US5703793A | 0.381 | Video decompression | GRANT | 1997-12-30 | 1994-07-29 | 26305370 | Fair | Discovision Associates | TALON RESEARCH LLC |
| US5603012A | 0.380 | Start code detector | GRANT | 1997-02-11 | 1992-06-30 | 46250246 | Fair | Discovision Associates | TALON RESEARCH LLC |
| US6067417A | 0.380 | Picture start token | GRANT | 2000-05-23 | 1992-06-30 | 27545632 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US6018776A | 0.379 | System for microprogrammable state machine in video parser clearing and resetting processing stages responsive to flush token generating by token generator responsive to received data | GRANT | 2000-01-25 | 1992-06-30 | 27234740 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US6079009A | 0.379 | Coding standard token in a system compromising a plurality of pipeline stages | GRANT | 2000-06-20 | 1992-06-30 | 27562088 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US5768561A | 0.379 | Tokens-based adaptive video processing arrangement | GRANT | 1998-06-16 | 1992-06-30 | 27545636 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US5573012A | 0.378 | Body monitoring and imaging apparatus and method | GRANT | 1996-11-12 | 1994-08-09 | 23104155 | Fair | University of California | Lawrence Livermore National Security LLC |
| US5867530A | 0.378 | Method and apparatus for accomodating signal blockage in satellite mobile radio systems | GRANT | 1999-02-02 | 1996-06-14 | 24668904 | Fair | TRW Inc | Northrop Grumman Systems Corp |
| US5751356A | 0.378 | Video/audio signal coding system and method | GRANT | 1998-05-12 | 1995-08-15 | 16896397 | Fair | Nippon Steel Corp | MediaTek Inc |
| EP0755153A1 | 0.377 | Method and control module and the control of received digital signals by control instructions which are independent from the transmission channel | GRANT | 1997-01-22 | 1995-07-17 | 9481217 | Fair | Comatlas Sa | Comatlas Sa |
| USRE41089E1 | 0.374 | Method of decoding a current image | GRANT | 2010-01-26 | 1998-11-13 | 19558268 | Fair | LG Electronics Inc | LG Electronics Inc |
| US5792073A | 0.372 | System and method for acoustic response measurement in the ear canal | GRANT | 1998-08-11 | 1996-01-23 | 26792814 | Fair | Boys Town National Research Hospital | Boys Town National Research Hospital |
| US6459679B1 | 0.371 | Method and apparatus for synchronizing orthogonal frequency division multiplexing (OFDM) receiver | GRANT | 2002-10-01 | 1998-07-08 | 19543477 | Fair | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US4961204A | 0.371 | PCM signal generating/reproducing apparatus | GRANT | 1990-10-02 | 1988-05-23 | 26460641 | Fair | Hitachi Ltd | Hitachi Ltd |
| US5231486A | 0.370 | Data separation processing in a dual channel digital high definition television system | GRANT | 1993-07-27 | 1992-07-27 | 25440903 | Fair | General Electric Co | General Electric Co |
| US20020152073A1 | 0.363 | Corpus-based prosody translation system | APPLICATION | 2002-10-17 | 2000-09-29 | 22889656 | Fair | Lernout and Hauspie Speech Products NV | Lernout and Hauspie Speech Products NV |
| US7613241B2 | 0.362 | Method of filtering a pixel of an image | GRANT | 2009-11-03 | 2001-06-15 | 19710887 | Fair | LG Electronics Inc | LG Electronics Inc |
| US20020163455A1 | 0.360 | Audio signal compression | APPLICATION | 2002-11-07 | 2000-09-08 | 8171989 | Fair | Koninklijke Philips NV, US Philips Corp | Koninklijke Philips NV, Pendragon Wireless LLC |
| US5724537A | 0.360 | Interface for connecting a bus to a random access memory using a two wire link | GRANT | 1998-03-03 | 1994-03-24 | 26304578 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US4544950A | 0.356 | Technique for the transmission of video and audio signals over a digital transmission system | GRANT | 1985-10-01 | 1984-01-03 | 24267573 | Fair | AT&T Bell Laboratories Inc | Nokia Bell Labs, AT&T Corp, CBS Corp |
| US5263018A | 0.352 | Apparatus for time division multiplexed processing of plural QAM signals | GRANT | 1993-11-16 | 1992-07-29 | 25446508 | Fair | Thomson Consumer Electronics Inc | Technicolor USA Inc |
| US5768433A | 0.351 | Picture compression circuit | GRANT | 1998-06-16 | 1994-03-30 | 9461875 | Fair | SGS Thomson Microelectronics SA | STMicroelectronics SA |
| US6320850B1 | 0.350 | Satellite communication adaptive control coding | GRANT | 2001-11-20 | 1998-04-24 | 22067031 | Fair | TRW Inc | Northrop Grumman Systems Corp |
| US5329365A | 0.349 | Method and apparatus for providing compressed non-interlaced scanned video signal | GRANT | 1994-07-12 | 1993-07-07 | 22211601 | Fair | RCA Licensing Corp | RCA Licensing Corp |
| US6584108B1 | 0.348 | Method and apparatus for dynamic allocation of multiple signal processing resources among multiple channels in voice over packet-data-network systems (VOPS) | GRANT | 2003-06-24 | 1998-09-30 | 22592872 | Fair | Cisco Technology Inc | Cisco Technology Inc |
| US4914675A | 0.343 | Apparatus for efficiently packing data in a buffer | GRANT | 1990-04-03 | 1988-01-28 | 22530827 | Fair | General Electric Co | General Electric Co |
| US5909250A | 0.343 | Adaptive video compression using variable quantization | GRANT | 1999-06-01 | 1993-04-16 | 21954700 | Fair | Media 100 Inc | Acoustic Technology LLC |
| WO1994000955A1 | 0.342 | METHOD OF PROCESSING DIGITAL COLOR TELEVISION SIGNALS FOR MAGNETIC TAPE RECORDING | APPLICATION | 1994-01-06 | 1992-06-26 | 6462049 | Fair | ||
| US5313472A | 0.342 | Bit detecting method and apparatus | GRANT | 1994-05-17 | 1991-06-14 | 26493471 | Fair | Sony Corp | Sony Corp |
| US5596581A | 0.340 | Recording and reproducing an MPEG information signal using tagged timing information | GRANT | 1997-01-21 | 1994-04-08 | 22843911 | Fair | Philips North America LLC | Philips North America LLC |
| US5454375A | 0.338 | Pneumotachograph mask or mouthpiece coupling element for airflow measurement during speech or singing | GRANT | 1995-10-03 | 1993-10-21 | 22494462 | Fair | Glottal Enterprises | Glottal Enterprises |
| US6023531A | 0.336 | Quantization table adjustment | GRANT | 2000-02-08 | 1991-12-13 | 25195617 | Fair | Avid Technology Inc | Avid Technology Inc |
| US5608862A | 0.335 | Apparatus for processing hierarchically-coded image data | GRANT | 1997-03-04 | 1992-01-06 | 11464911 | Fair | Canon Inc | Canon Inc |
| US20020102097A1 | 0.335 | Data transmitting apparatus and method and data receiving apparatus and method | APPLICATION | 2002-08-01 | 1999-12-17 | 18464318 | Fair | Sony Corp | Sony Corp |
| US8694663B2 | 0.333 | System for transferring digital data at a high rate between a host and a client over a communication path for presentation to a user | GRANT | 2014-04-08 | 2001-09-06 | 43465273 | Fair | Qualcomm Inc | Qualcomm Inc |
| US5563649A | 0.331 | System and method for transmitting video material | GRANT | 1996-10-08 | 1993-06-16 | 22139494 | Fair | PORTE MICHAEL | PORTE MICHAEL |
| US5682464A | 0.329 | Word model candidate preselection for speech recognition using precomputed matrix of thresholded distance values | GRANT | 1997-10-28 | 1992-06-29 | 26941067 | Fair | L&H Applications USA Inc | Nuance Communications Inc |
| US5982938A | 0.326 | System and method for compressing data using differential coding of coefficient addresses | GRANT | 1999-11-09 | 1997-03-31 | 25255498 | Fair | Mediabin Inc | Mediabin Inc, Hewlett Packard Development Co LP |
| US5799279A | 0.326 | Continuous speech recognition of text and commands | GRANT | 1998-08-25 | 1995-11-13 | 24232717 | Fair | L&H Holdings USA Inc | Nuance Communications Inc |
| US8645137B2 | 0.323 | Fast language-independent method for user authentication by voice | GRANT | 2014-02-04 | 2000-03-16 | 38862619 | Fair | Apple Inc | Apple Inc |
| US8745251B2 | 0.322 | Power reduction system for an apparatus for high data rate signal transfer using a communication protocol | GRANT | 2014-06-03 | 2000-12-15 | 27361455 | Fair | Qualcomm Inc | Qualcomm Inc |
| US5060229A | 0.322 | Serial transport frame format method | GRANT | 1991-10-22 | 1989-05-12 | 23381019 | Fair | Alcatel NA Network Systems Corp | Alcatel Network Systems Inc |
| US5757306A | 0.321 | Vector quantization with a control circuit for input and predicted vector quantization | GRANT | 1998-05-26 | 1994-08-22 | 16359855 | Fair | NEC Corp | NEC Corp |
| EP0618730A2 | 0.320 | Priority processing of encoded video signal | GRANT | 1994-10-05 | 1993-04-02 | 21920439 | Fair | RCA Licensing Corp | RCA Licensing Corp |
| US5481553A | 0.319 | Methods and apparatus for preventing rounding errors when transform coefficients representing a motion picture signal are inversely transformed | GRANT | 1996-01-02 | 1993-03-01 | 26379647 | Fair | Sony Corp | Sony Corp |
| USRE41386E1 | 0.317 | Method of filtering an image including application of a weighted average operation | GRANT | 2010-06-22 | 1998-08-31 | 19548900 | Fair | LG Electronics Inc | LG Electronics Inc |
| US5768527A | 0.315 | Device system and method of real-time multimedia streaming | GRANT | 1998-06-16 | 1996-04-23 | 24551805 | Fair | Motorola Solutions Inc | Google Technology Holdings LLC |
| US5583572A | 0.312 | Moving picture decoding device | GRANT | 1996-12-10 | 1992-12-04 | 18180239 | Fair | Sony Corp | Sony Corp |
| US4594687A | 0.309 | Address arithmetic circuit of a memory unit utilized in a processing system of digitalized analogue signals | GRANT | 1986-06-10 | 1982-07-28 | 15061581 | Fair | Nippon Telegraph and Telephone Corp | Nippon Telegraph and Telephone Corp |
| US6185339B1 | 0.307 | Bit stream analyzing method and apparatus | GRANT | 2001-02-06 | 1997-09-24 | 17322774 | Fair | Sony Corp | Sony Corp |
| US5577190A | 0.306 | Media editing system with adjustable source material compression | GRANT | 1996-11-19 | 1991-12-13 | 25348511 | Fair | Avid Technology Inc | Avid Technology Inc |
| US6459815B1 | 0.306 | Method of buffering video data in video compression system | GRANT | 2002-10-01 | 1998-10-10 | 19554109 | Fair | LG Information and Communications Ltd | LG Information and Communications Ltd |
| US20050288936A1 | 0.305 | Multi-context conversational environment system and method | APPLICATION | 2005-12-29 | 2001-05-30 | 25354946 | Fair | BellSouth Intellectual Property Corp | Nuance Communications Inc |
| US6266447B1 | 0.305 | Coding apparatus | GRANT | 2001-07-24 | 1992-06-09 | 26479347 | Fair | Canon Inc | Canon Inc |
| US5717828A | 0.304 | Speech recognition apparatus and method for learning | GRANT | 1998-02-10 | 1995-03-15 | 23602077 | Fair | Syracuse Language Systems Inc | VIVENDI UNIVERSAL INTERACTIVE PUBLISHING NORTH AMERICA Inc |
| US20120033812A1 | 0.304 | SYSTEM AND METHOD FOR DECOMPRESSING AND MAKING PUBLICALLY AVAILABLE RECEIVED MEDIA CONTENT | APPLICATION | 2012-02-09 | 1997-07-03 | 25392350 | Fair | AT&T Intellectual Property II LP | Hanger Solutions LLC |
| US8718047B2 | 0.303 | Text to speech conversion of text messages from mobile communication devices | GRANT | 2014-05-06 | 2001-10-22 | 11442289 | Fair | Apple Inc | Apple Inc |
| US5410355A | 0.302 | Video signal processor including input codeword buffer for providing stored codewords to codeword priority analysis circuit | GRANT | 1995-04-25 | 1993-04-02 | 21920480 | Fair | RCA Licensing Corp | RCA Licensing Corp |
| US5606543A | 0.300 | Recording multiplex coded signals on a disk recording medium with a priority switching means | GRANT | 1997-02-25 | 1993-11-19 | 18050134 | Fair | Victor Company of Japan Ltd | Victor Company of Japan Ltd |
| US5767912A | 0.299 | Datastream packet alignment indicator in a system for assembling transport data packets | GRANT | 1998-06-16 | 1993-11-30 | 24599632 | Fair | General Electric Co | General Electric Co |
| WO1995015650A1 | 0.295 | DATA PROCESSOR FOR ASSEMBLING TRANSPORT DATA PACKETS | APPLICATION | 1995-06-08 | 1993-11-30 | 22237242 | Fair | ||
| US5619424A | 0.294 | Software carrier for storing digital data representative of picture information and including pan scan data | GRANT | 1997-04-08 | 1993-10-29 | 22517368 | Fair | Time Warner Entertainment Co LP | Warner Bros Home Entertainment Inc, Warner Communications LLC |
| US5568061A | 0.294 | Redundant line decoder master enable | GRANT | 1996-10-22 | 1993-09-30 | 22441504 | Fair | SGS Thomson Microelectronics Inc | STMicroelectronics lnc USA |
| US5784110A | 0.293 | Data processor for assembling transport data packets | GRANT | 1998-07-21 | 1993-11-30 | 24599642 | Fair | General Electric Co | General Electric Co |
| US5818468A | 0.293 | Decoding video signals at high speed using a memory buffer | GRANT | 1998-10-06 | 1996-06-04 | 24643605 | Fair | Sigma Designs Inc | V-Silicon Semiconductor (hefei) Co Ltd |
| US5754235A | 0.293 | Bit-rate conversion circuit for a compressed motion video bitstream | GRANT | 1998-05-19 | 1994-03-25 | 13015442 | Fair | Sanyo Electric Co Ltd | Sanyo Electric Co Ltd |
| US5253041A | 0.289 | Digital television signal compression apparatus | GRANT | 1993-10-12 | 1992-05-26 | 25393463 | Fair | General Electric Co | Thomson Licensing SAS |
| US5623314A | 0.288 | MPEG decoder memory data storage and transfer | GRANT | 1997-04-22 | 1994-05-18 | 22927893 | Fair | Zoran MIcroelectronics Ltd | Qualcomm Technologies International Ltd |
| US5349549A | 0.285 | Forward transform processing apparatus and inverse processing apparatus for modified discrete cosine transforms and method of performing spectral and temporal analyses including simplified forward and inverse orthogonal transform processing | GRANT | 1994-09-20 | 1991-09-30 | 17565642 | Fair | Sony Corp | Sony Corp |
| US4955056A | 0.283 | Pattern recognition system | GRANT | 1990-09-04 | 1985-07-16 | 10582353 | Fair | British Telecommunications PLC | British Telecommunications PLC |
| US4594708A | 0.282 | Synchronization for a digital train intended for a correct framing of received information | GRANT | 1986-06-10 | 1982-10-21 | 9278712 | Fair | ||
| WO2002003584A2 | 0.281 | HEAD END DEVICE FOR USE IN A HIERARCHICAL BROADBAND BROADCAST NETWORK AND METHOD AND SYSTEM FOR TRANSMITTING CONTENT DATA IN A HIERARCHICAL NETWORK | APPLICATION | 2002-01-10 | 2000-06-30 | 9894874 | Fair | ||
| US4873577A | 0.281 | Edge decomposition for the transmission of high resolution facsimile images | GRANT | 1989-10-10 | 1988-01-22 | 22519565 | Fair | American Telephone and Telegraph Co Inc, AT&T Bell Laboratories Inc | AT&T Corp, Nokia of America Corp |
| US5914751A | 0.280 | Method and apparatus for perception-optimized transmission of video and audio signals | GRANT | 1999-06-22 | 1995-08-23 | 7770189 | Fair | International Business Machines Corp | International Business Machines Corp |
| US5907692A | 0.278 | Data pipeline system and data encoding method | GRANT | 1999-05-25 | 1992-06-30 | 8211419 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US5400077A | 0.274 | System for generating multiple aspect ratio video signals from motion picture disk recorded in a single aspect ratio | GRANT | 1995-03-21 | 1993-10-29 | 22510154 | Fair | Time Warner Entertainment Co LP | Warner Bros Home Entertainment Inc, Warner Communications LLC |
| US7231308B2 | 0.273 | Test system dynamic range extension through compression compensation | GRANT | 2007-06-12 | 2001-12-21 | 21839571 | Fair | Agilent Technologies Inc | Agilent Technologies Inc |
| US6553515B1 | 0.272 | System method and computer program product for diagnostic supervision of internet connections | GRANT | 2003-04-22 | 1999-09-10 | 23555697 | Fair | COMDIAL CORP | Chemtron Research LLC, Vertical Communications Acquisition Corp |
| US5874999A | 0.268 | Image processing apparatus with multiple data modes | GRANT | 1999-02-23 | 1993-04-28 | 27468982 | Fair | Fukuyama and Assoc | Olympus Corp, Fukuyama and Assoc |
| US20060277049A1 | 0.268 | Personal Mobile Computing Device Having Antenna Microphone and Speech Detection for Improved Speech Recognition | APPLICATION | 2006-12-07 | 1999-11-22 | 23775363 | Fair | Microsoft Corp | Microsoft Technology Licensing LLC |
| EP0794650A2 | 0.266 | Voice mail on the internet | GRANT | 1997-09-10 | 1996-03-05 | 10789877 | Fair | International Business Machines Corp | International Business Machines Corp |
| US5861894A | 0.264 | Buffer manager | GRANT | 1999-01-19 | 1993-06-24 | 27547222 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US5475798A | 0.263 | Speech-to-text translator | GRANT | 1995-12-12 | 1992-01-06 | 25222978 | Fair | Handlos LLC | HANDLOS LL C |
| US5036515A | 0.260 | Bit error rate detection | GRANT | 1991-07-30 | 1989-05-30 | 23410984 | Fair | Motorola Solutions Inc | Motorola Solutions Inc |
| US5821947A | 0.257 | Mixing of computer graphics and animation sequences | GRANT | 1998-10-13 | 1992-11-10 | 25523552 | Fair | Sigma Designs Inc | Sigma Designs Inc |
| US20030120726A1 | 0.247 | Method and apparatus for a mixed-media messaging delivery system | APPLICATION | 2003-06-26 | 2001-11-15 | 23298362 | Fair | HIGHWIRED TECHNOLOGIES Inc | HIGHWIRED TECHNOLOGIES Inc |
| US6067383A | 0.244 | Coding method coding apparatus wavelet transform apparatus and wavelet reverse transform apparatus | GRANT | 2000-05-23 | 1995-09-12 | 26531164 | Fair | Panasonic Corp | Panasonic Corp |
| US6816993B1 | 0.244 | Control method of electronic device controllable from external control apparatus by communication | GRANT | 2004-11-09 | 1998-11-25 | 18270516 | Fair | Canon Inc | Canon Inc |
| US5719511A | 0.241 | Circuit for generating an output signal synchronized to an input signal | GRANT | 1998-02-17 | 1996-01-31 | 24374291 | Fair | Sigma Designs Inc | V-Silicon Semiconductor (hefei) Co Ltd |
| US7031599B2 | 0.237 | Recording apparatus and reproducing apparatus | GRANT | 2006-04-18 | 1994-02-02 | 26346560 | Fair | Sony Corp | Sony Corp |
| US5583569A | 0.237 | Video camera having asynchronous digital output including header data | GRANT | 1996-12-10 | 1994-08-19 | 23127817 | Fair | Intel Corp | Intel Corp |
| US5528309A | 0.236 | Analog video chromakey mixer | GRANT | 1996-06-18 | 1994-06-28 | 23024377 | Fair | Sigma Designs Inc | Sigma Designs Inc |
| US20030216921A1 | 0.234 | Method and system for limited domain text to speech (TTS) processing | APPLICATION | 2003-11-20 | 2002-05-16 | 29419196 | Fair | Intel Corp | Intel Corp |
| US6392397B1 | 0.221 | Method and apparatus for spectrum analysis by creating and manipulating candidate spectra | GRANT | 2002-05-21 | 1997-06-25 | 10814841 | Fair | IFR Ltd | Aeroflex Ltd |
| WO1998019273A1 | 0.218 | IMAGE TRANSMISSION | APPLICATION | 1998-05-07 | 1996-10-28 | 3797602 | Fair | ||
| US5914962A | 0.216 | MPEG transport mux for independently clocked transport streams | GRANT | 1999-06-22 | 1996-06-27 | 24694622 | Fair | Zenith Electronics LLC | Zenith Electronics LLC |
| US5699544A | 0.215 | Method and apparatus for using a fixed width word for addressing variable width data | GRANT | 1997-12-16 | 1993-06-24 | 27562904 | Fair | Discovision Associates | TALON RESEARCH LLC |
| US5761741A | 0.203 | Technique for addressing a partial word and concurrently providing a substitution field | GRANT | 1998-06-02 | 1994-03-24 | 27267120 | Fair | Discovision Associates | TALON RESEARCH LLC |
| US7203250B2 | 0.202 | Frequency analysis method and apparatus and spectrum spreading demodulation method and apparatus | GRANT | 2007-04-10 | 2001-07-04 | 26618102 | Fair | Sony Corp | Sony Corp |
| US6128726A | 0.196 | Accurate high speed digital signal processor | GRANT | 2000-10-03 | 1996-06-04 | 24637681 | Fair | Sigma Designs Inc | V-Silicon Semiconductor (hefei) Co Ltd |
| US5615401A | 0.186 | Video and audio data presentation interface | GRANT | 1997-03-25 | 1994-03-30 | 22826629 | Fair | Sigma Designs Inc | Sigma Designs Inc |
| US5724391A | 0.183 | Apparatus for transmission of variable length data | GRANT | 1998-03-03 | 1995-09-20 | 26396288 | Fair | Panasonic Corp | Panasonic Intellectual Property Corp |
| US4858115A | 0.182 | Loop control mechanism for scientific processor | GRANT | 1989-08-15 | 1985-07-31 | 25059979 | Fair | Unisys Corp | Unisys Corp, Sperry Corp |
| US6009237A | 0.179 | Optical disk and optical disk reproduction apparatus | GRANT | 1999-12-28 | 1995-02-24 | 26375525 | Fair | Hitachi Ltd | Hitachi Ltd |
| EP0606137A2 | 0.173 | Apparatus and method for storing and printing image data | GRANT | 1994-07-13 | 1993-01-04 | 21689786 | Fair | Xerox Corp | Xerox Corp |
| US20030163702A1 | 0.172 | System and method for secure and verified sharing of resources in a peer-to-peer network environment | APPLICATION | 2003-08-28 | 2001-04-06 | 27403297 | Fair | Networks Associates Technology Inc | McAfee LLC |
| US6002834A | 0.171 | Optical disk having table relating sector address and time and optical disk reproducing apparatus | GRANT | 1999-12-14 | 1995-02-24 | 27289107 | Fair | Hitachi Ltd | Hitachi Consumer Electronics Co Ltd |
| US5461427A | 0.168 | Television receiver having the capability to associate any HDTV and any NTSC channel | GRANT | 1995-10-24 | 1994-06-28 | 23016468 | Fair | Thomson Consumer Electronics Inc | Technicolor USA Inc |
| US5453796A | 0.160 | Signal swap apparatus for a television receiver having an HDTV main picture signal processor and an NTSC Pix-in-Pix signal processor | GRANT | 1995-09-26 | 1994-06-28 | 23016463 | Fair | Thomson Consumer Electronics Inc | Technicolor USA Inc |
| US5355133A | 0.151 | Data modulating method and apparatus and data demodulating method and apparatus | GRANT | 1994-10-11 | 1992-02-14 | 13120961 | Fair | Sony Corp | Sony Corp |
| US6191822B1 | 0.150 | Method of and apparatus for separating audio and video data from a combined audio/video stream of data | GRANT | 2001-02-20 | 1997-06-20 | 25375044 | Fair | Sony Corp, Sony Electronics Inc | Sony Corp, Sony Electronics Inc |
| US5776037A | 0.149 | Isometric exercise device | GRANT | 1998-07-07 | 1997-02-10 | 25171995 | Fair | ||
| US4008892A | 0.149 | Apparatus for rebound running | GRANT | 1977-02-22 | 1973-03-05 | 26991081 | Fair | Nissen Corp | NISSEN UNIVERSAL HOLDINGS Inc |
| US5598576A | 0.148 | Audio output device having digital signal processor for responding to commands issued by processor by emulating designated functions according to common command interface | GRANT | 1997-01-28 | 1994-03-30 | 22820994 | Fair | Sigma Designs Inc | SIGMA DESIGNS, SIGMA DESIGNS ICNORPORATED, Sigma Designs Inc |
| US4844775A | 0.145 | Ion etching and chemical vapour deposition | GRANT | 1989-07-04 | 1986-12-11 | 10608847 | Fair | CHRISTOPHER DAVID DOBSON OF ELECTROTECH EQUIPMENTS Ltd THORNBURY LABORATORIES LITTLETON-UPON-SEVERN BRISTOL BS12 INP GREAT BRITAIN | NationsBank of Texas NA |
| US6119139A | 0.143 | Virtual windowing for fixed-point digital signal processors | GRANT | 2000-09-12 | 1997-10-27 | 25502065 | Fair | Nortel Networks Corp | Nortel Networks Ltd |
| US6170033B1 | 0.143 | Forwarding causes of non-maskable interrupts to the interrupt handler | GRANT | 2001-01-02 | 1997-09-30 | 25474459 | Fair | Intel Corp | Intel Corp |
| US20030048957A1 | 0.142 | System and method for correlated noise removal in complex imaging systems | APPLICATION | 2003-03-13 | 2001-09-07 | 25488823 | Fair | nLine Corp | nLine Corp |
| WO2001006367A1 | 0.138 | HIERARCHICAL BACKUP AND RETRIEVAL SYSTEM | APPLICATION | 2001-01-25 | 1999-07-15 | 23391721 | Fair | ||
| US5790881A | 0.134 | Computer system including coprocessor devices simulating memory interfaces | GRANT | 1998-08-04 | 1995-02-07 | 23520637 | Fair | Sigma Designs Inc | V-Silicon Semiconductor (hefei) Co Ltd |
| US6266652B1 | 0.129 | Computer auction system | GRANT | 2001-07-24 | 1996-08-26 | 24823699 | Fair | Bid Com International Inc | ADB SYSTEM INTERNATIONAL Inc |
| WO2001017265A1 | 0.127 | METHOD AND SYSTEM OF IDENTIFYING SOFTWARE AND FIRMWARE OBJECTS AVAILABLE FOR DOWNLOAD OVER A NETWORK SUCH AS A CABLE TELEVISION SYSTEM | APPLICATION | 2001-03-08 | 1999-09-02 | 26849258 | Fair | ||
| US5701311A | 0.126 | Redundant acknowledgements for packetized data in noisy links and method thereof | GRANT | 1997-12-23 | 1996-02-08 | 24396902 | Fair | Motorola Solutions Inc | Motorola Solutions Inc |
| US6018354A | 0.122 | Method for accessing banks of DRAM | GRANT | 2000-01-25 | 1994-03-24 | 27267121 | Fair | Discovision Associates | Chartoleaux KG LLC |
| US8634468B2 | 0.117 | Method of decoding a current image block | GRANT | 2014-01-21 | 2002-05-03 | 36389070 | Fair | LG Electronics Inc | LG Electronics Inc |
| US4990229A | 0.112 | High density plasma deposition and etching apparatus | GRANT | 1991-02-05 | 1989-06-13 | 23439252 | Fair | Plasma and Materials Technologies Inc | SPP PROCESS Tech SYSTEMS UK Ltd, SPTS Technologies Ltd, Silicon Valley Bank Inc |
| US8257725B2 | 0.111 | Delivery of highly lipophilic agents via medical devices | GRANT | 2012-09-04 | 1997-09-26 | 38445691 | Fair | Abbott Laboratories | Abbott Laboratories |
| US6505216B1 | 0.110 | Methods and apparatus for backing-up and restoring files using multiple trails | GRANT | 2003-01-07 | 1999-10-01 | 23629629 | Fair | EMC Corp | EMC Corp |
| US4873689A | 0.099 | Method and apparatus for collecting errors in the digital data of a television signal | GRANT | 1989-10-10 | 1987-06-16 | 9352090 | Fair | US Philips Corp | US Philips Corp |
| WO2003044662A1 | 0.098 | INCREMENTALLY INCREASING OR DECREASING THE AVAILABLE FUNCTIONALITIES OF A COMPUTER PROGRAM | APPLICATION | 2003-05-30 | 2001-11-15 | 21742980 | Fair | ||
| US6457036B1 | 0.098 | System for accurately performing an integer multiply-divide operation | GRANT | 2002-09-24 | 1999-08-24 | 23498222 | Fair | Avaya Technology LLC | Hanger Solutions LLC |
| US4276647A | 0.095 | High speed Hamming code circuit and method for the correction of error bursts | GRANT | 1981-06-30 | 1979-08-02 | 22046393 | Fair | Xerox Corp | Xerox Corp |
| US20060240070A1 | 0.094 | Delivery of highly lipophilic agents via medical devices | APPLICATION | 2006-10-26 | 1998-09-24 | 38516133 | Fair | Abbott Laboratories | Abbott Laboratories |
| US4859908A | 0.093 | Plasma processing apparatus for large area ion irradiation | GRANT | 1989-08-22 | 1986-09-24 | 27522596 | Fair | Panasonic Corp | Panasonic Corp |
| US3800338A | 0.093 | RELEASE MECHANISM FOR BACK REST SUPPORT | GRANT | 1974-04-02 | 1972-08-21 | 23080056 | Fair | CR Bard Inc | CR Bard Inc |
| US20060133349A1 | 0.093 | Apparatus and associated method for a CTI-enabled SIP-phone | APPLICATION | 2006-06-22 | 2001-07-27 | 35735527 | Fair | Alcatel SA | Provenance Asset Group LLC, Nokia USA Inc |
| WO2000017738A1 | 0.091 | INTERNET-BASED SERVICE FOR UPDATING A PROGRAMMABLE CONTROL DEVICE | APPLICATION | 2000-03-30 | 1998-09-17 | 26797591 | Fair | ||
| EP0993163A1 | 0.086 | Distributed client-based data caching system and method | GRANT | 2000-04-12 | 1998-10-05 | 22604301 | Fair | Backweb Technologies Ltd | Backweb Technologies Ltd |
| US6463873B1 | 0.071 | High density plasmas | GRANT | 2002-10-15 | 2000-04-04 | 26073093 | Fair | Plasma Quest Ltd | Plasma Quest Ltd |
| US4401054A | 0.064 | Plasma deposition apparatus | GRANT | 1983-08-30 | 1980-05-02 | 26355770 | Fair | Nippon Telegraph and Telephone Corp | Nippon Telegraph and Telephone Corp |
| US4123316A | 0.057 | Plasma processor | GRANT | 1978-10-31 | 1975-10-06 | 26350879 | Fair | Hitachi Ltd | Hitachi Ltd |
| EP1027519A1 | 0.052 | APPARATUS FOR DIRECTIONAL DRILLING | GRANT | 2000-08-16 | 1998-08-24 | 26793547 | Fair | Earth Tool Co LLC | Earth Tool Co LLC |
| WO1990000381A1 | 0.045 | IMPROVED FLUIDIZED BEAD BED | APPLICATION | 1990-01-25 | 1988-07-11 | 22812069 | Fair | ||
| US5667340A | 0.036 | Cementitious composition for underwater use and a method for placing the composition underwater | GRANT | 1997-09-16 | 1995-09-05 | 24084062 | Fair | Sandoz KK | Construction Research and Technology GmbH, Sandoz KK |
| US3197560A | NR | Frequency measuring system | GRANT | 1965-07-27 | 1944-12-29 | 24279529 | Fair | Bell Telephone Laboratories Inc | AT&T Corp |
| RU2000102555A | NR | No title | APPLICATION | 2002-01-10 | 2000-02-02 | 72613759 | Fair | ||
| KR100766761B1 | NR | METHOD AND APPARATUS FOR CONSTRUCTING VOICE TEMPLATES FOR A SPEAKER-INDEPENDENT VOICE RECOGNITION SYSTEM | GRANT | 2007-10-17 | 2000-07-13 | 24465970 | Fair | ||
| KR100413868B1 | NR | - APPARATUS AND METHOD FOR GENERATING ON-SCREEN-DISPLAY MESSAGES USING STORED BITSTREAMS | GRANT | 2004-03-24 | 1995-05-24 | 10774946 | Fair | ||
| JPS61242117A | NR | BLOCK FLOATING SYSTEM | GRANT | 1986-10-28 | 1985-04-19 | 13769609 | Fair | ||
| JPH1069297A | NR | VOICE CODING DEVICE | GRANT | 1998-03-10 | 1996-08-26 | 17357399 | Fair | ||
| JPH10340098A | NR | SIGNAL ENCODING DEVICE | GRANT | 1998-12-22 | 1997-04-09 | 26431899 | Fair | ||
| JPH10109409A | NR | INK JET RECORDING APPARATUS AND CONTROL METHOD THEREOF | GRANT | 1998-04-28 | 1996-10-04 | 17402163 | Fair | ||
| JPH0955778A | NR | BANDWIDTH WIDENING DEVICE FOR SOUND SIGNAL | GRANT | 1997-02-25 | 1995-08-15 | 16548925 | Fair | ||
| JPH09294077A | NR | COMPRESSION VOICE DATA PROCESSING METHOD DATA STREAM REPRODUCTION METHOD AND DEVICE FOR THE METHODS | GRANT | 1997-11-11 | 1996-04-26 | 14436067 | Fair | ||
| JPH09134198A | NR | VOICE DECODING DEVICE | GRANT | 1997-05-20 | 1995-11-10 | 17783515 | Fair | ||
| JPH06334613A | NR | VOICE DECODER | GRANT | 1994-12-02 | 1993-05-21 | 15288542 | Fair | ||
| JPH06202699A | NR | SPEECH ENCODING DEVICE AND SPEECH DECODING DEVICE AND SPEECH ENCODING AND DECODING METHOD | GRANT | 1994-07-22 | 1992-09-29 | 26534595 | Fair | ||
| JP2003249957A | NR | METHOD AND DEVICE FOR CONSTITUTING PACKET PROGRAM FOR CONSTITUTING PACKET AND METHOD AND DEVICE FOR PACKET DISASSEMBLY PROGRAM FOR PACKET DISASSEMBLY | APPLICATION | 2003-09-05 | 2002-02-22 | 28659486 | Fair | ||
| JP2003177797A | NR | DIGITAL SIGNAL ENCODING DEVICE AND DIGITAL SIGNAL RECORDING DEVICE PROVIDED WITH THE DEVICE | APPLICATION | 2003-06-27 | 2001-12-10 | 19184530 | Fair | ||
| JP2003005798A | NR | RECORDER AND REPRODUCING DEVICE | APPLICATION | 2003-01-08 | 2001-06-21 | 19027430 | Fair | ||
| JP2002268696A | NR | SOUND SIGNAL ENCODING METHOD METHOD AND DEVICE FOR DECODING PROGRAM AND RECORDING MEDIUM | APPLICATION | 2002-09-20 | 2001-03-13 | 18927856 | Fair | ||
| JP2002236495A | NR | DEVICE AND METHOD FOR DECODING VOICE | APPLICATION | 2002-08-23 | 2000-11-30 | 26605030 | Fair | ||
| JP2002221994A | NR | METHOD AND APPARATUS FOR ASSEMBLING PACKET OF CODE STRING OF VOICE SIGNAL METHOD AND APPARATUS FOR DISASSEMBLING PACKET PROGRAM FOR EXECUTING THESE METHODS AND RECORDING MEDIUM FOR RECORDING PROGRAM THEREON | APPLICATION | 2002-08-09 | 2001-01-26 | 18884557 | Fair | ||
| JP2002189499A | NR | METHOD AND DEVICE FOR COMPRESSING DIGITAL AUDIO SIGNAL | APPLICATION | 2002-07-05 | 2000-12-20 | 18854301 | Fair | ||
| JP2001022367A | NR | SPEECH DISCRIMINATION DEVICE AND METHOD THEREFOR | APPLICATION | 2001-01-26 | 1993-08-17 | 18688648 | Fair | ||
| JP2000117573A | NR | ASSEMBLY DEVICE FOR CORE OF HEAT-EXCHANGER | APPLICATION | 2000-04-25 | 1998-10-16 | 22632948 | Fair | ||
| ES2078834A2 | NR | Method of segmentation of chains of words in the training phase of a connected word recognizer. | GRANT | 1995-12-16 | 1992-10-30 | 8278635 | Fair | Nokia Spain SA | Nokia Spain SA |
| CN1090869C | NR | Datastream packet allgnment indicator in a system for assembling transport data packets | GRANT | 2002-09-11 | 1993-11-30 | 22237249 | Fair | ||
| AU683056B2 | NR | Adaptive video decompression | GRANT | 1997-10-30 | 1993-04-16 | 21956422 | Fair | Data Translation Inc | Media 100 Inc |
| AU663032B2 | NR | Data receiving apparatus and method | GRANT | 1995-09-21 | 1993-10-29 | 26385647 | Fair | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
 |  |
Validity Report Full Report
US7693710B2 — Method and device for efficient frame erasure concealment in linear predictive based speech codecs Priority Date: 2002-05-31, Publication Date: 2010-04-06, Current Assignee: VoiceAge EVS LLCReport Generated: 2021-04-01