Patent Id | Score | Title | Patent Type | Publication Date | Priority Date | Family Id | Search Efficiency | Original Assignee | Current Assignee |
|---|---|---|---|---|---|---|---|---|---|
| US7027464B1 | 1.650 | OFDM signal transmission scheme and OFDM signal transmitter/receiver | GRANT | 2006-04-11 | 1999-07-30 | 36127791 | Great | Panasonic Corp | InterDigital Patent Holdings Inc |
| US6810020B2 | 1.593 | Apparatus and method for measuring bit error rate in an OFDM communication system | GRANT | 2004-10-26 | 2000-01-28 | 19642521 | Great | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US7149253B2 | 1.531 | Wireless communication | GRANT | 2006-12-12 | 2000-03-21 | 26886490 | Great | Texas Instruments Inc | Intel Corp |
| US6647003B1 | 1.477 | Channel estimation unit and CDMA receiver and CDMA transceiver with channel estimation unit | GRANT | 2003-11-11 | 1997-11-21 | 18133951 | Great | NTT Mobile Communications Networks Inc | NTT Docomo Inc |
| US6567374B1 | 1.428 | Data and pilot mapping in an OFDM system | GRANT | 2003-05-20 | 1998-02-18 | 8231443 | Great | Sony International Europe GmbH | Sony Deutschland GmbH |
| EP1158709A1 | 1.371 | SIGNAL FORMAT IN MULTI-CARRIER CDMA TRANSMISSION SYSTEM | GRANT | 2001-11-28 | 2000-01-05 | 18529878 | Great | NTT Docomo Inc | NTT Docomo Inc |
| EP1170916A1 | 1.240 | Channel estimator for OFDM system | GRANT | 2002-01-09 | 2000-07-05 | 8169171 | Great | Sony International Europe GmbH | Sony Deutschland GmbH |
| EP0938208A1 | 1.223 | Multicarrier transmission compatible with the existing GSM system | GRANT | 1999-08-25 | 1998-02-22 | 8231462 | Great | Sony International Europe GmbH | Sony Deutschland GmbH |
| US5867478A | 1.191 | Synchronous coherent orthogonal frequency division multiplexing system method software and device | GRANT | 1999-02-02 | 1997-06-20 | 25374088 | Great | Motorola Inc | Google Technology Holdings LLC |
| US6954481B1 | 1.183 | Pilot use in orthogonal frequency division multiplexing based spread spectrum multiple access systems | GRANT | 2005-10-11 | 2000-04-18 | 24202693 | Great | Flarion Technologies Inc | Qualcomm Inc |
| EP1290809A1 | 1.143 | APPARATUS AND METHOD FOR TRANSMISSION DIVERSITY USING MORE THAN TWO ANTENNAS | GRANT | 2003-03-12 | 2000-05-25 | 36089224 | Great | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| EP1133841A1 | 1.135 | SYSTEM AND METHOD FOR COMPENSATING TIMING ERROR USING PILOT SYMBOL IN OFDM/CDMA COMMUNICATION SYSTEM | GRANT | 2001-09-19 | 1999-09-29 | 36974549 | Great | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US7414962B2 | 1.119 | OFDM diversity transmission | GRANT | 2008-08-19 | 2000-04-18 | 8168499 | Great | Sony Deutschland GmbH | DRNC Holdings Inc |
| US6853689B1 | 1.111 | Method and apparatus for channel estimation with transmit diversity | GRANT | 2005-02-08 | 1999-07-15 | 26841549 | Great | Telefonaktiebolaget LM Ericsson AB | Optis Wireless Technology LLC, Cluster LLC |
| EP1168654B1 | 1.096 | Pilot channel power measurement means for a mobile station in asynchronous CDMA communication system | GRANT | 2006-08-16 | 2000-06-28 | 26638153 | Great | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| EP0898381A2 | 1.095 | Equalizing method and equalizer for ofdm receiver | GRANT | 1999-02-24 | 1997-08-20 | 19517923 | Great | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| EP0981207A1 | 1.081 | Pilot symbols | GRANT | 2000-02-23 | 1998-06-30 | 8234899 | Great | Nokia of America Corp | Nokia of America Corp |
| EP0810742A2 | 1.068 | Direct sequence code division multiple access transmission method using pilot symbols | GRANT | 1997-12-03 | 1996-05-30 | 26470136 | Great | Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc | NTT Docomo Inc |
| EP0716520A1 | 1.049 | CDMA DEMODULATION CIRCUIT AND DEMODULATING METHOD | GRANT | 1996-06-12 | 1994-06-23 | 27275886 | Great | Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc | NTT Docomo Inc |
| EP0683576A1 | 1.039 | An OFDM digital broadcasting system and a transmission system and a receiving system used for digital broadcasting | GRANT | 1995-11-22 | 1994-05-20 | 14436679 | Great | Hitachi Ltd | Hitachi Ltd |
| US5140615A | 1.017 | Maximal ratio diversity combining technique | GRANT | 1992-08-18 | 1990-06-12 | 24140137 | Great | Motorola Inc | Motorola Solutions Inc |
| US8873366B2 | 1.016 | Frequency division multiplexing system with selectable rate | GRANT | 2014-10-28 | 1998-01-06 | 8233277 | Great | Conversant Intellectual Property Management Inc | Mosaid Technologies Inc |
| US5692015A | 1.005 | Coherent detector and a coherent detection method for a digital communication receiver | GRANT | 1997-11-25 | 1994-06-22 | 15271740 | Great | NTT Mobile Communications Networks Inc | NTT Docomo Inc |
| US5912931A | 1.005 | Method for multicarrier signal detection and parameter estimation in mobile radio communication channels | GRANT | 1999-06-15 | 1996-08-01 | 24775197 | Great | Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc, Nextel Communications Inc | NTT Docomo Inc, Nippon Telegraph and Telephone Corp, Nextel Communications Inc |
| US5241544A | 1.002 | MULTI-CHANNEL TDM COMMUNICATION SYSTEM SLOT PHASE CORRECTION | GRANT | 1993-08-31 | 1991-11-01 | 25138582 | Great | Motorola Inc | Motorola Solutions Inc |
| EP1164733A1 | 0.999 | CHANNEL CONSTRUCTING METHOD AND BASE STATION USING THE METHOD | GRANT | 2001-12-19 | 2000-01-24 | 18542309 | Great | NTT Docomo Inc | NTT Docomo Inc |
| US6853616B1 | 0.997 | Orthogonal frequency division multiplexing receiver where FFT Window position recovery interlocks with sampling clock adjustment and method thereof | GRANT | 2005-02-08 | 1997-11-25 | 19525531 | Great | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US5666378A | 0.996 | High performance modem using pilot symbols for equalization and frame synchronization | GRANT | 1997-09-09 | 1994-03-18 | 22801777 | Great | Glenayre Electronics Inc | Quarterhill Inc |
| EP0993129A2 | 0.986 | Channel estimation in space time block coded transmit antenna diversity for WCDMA | GRANT | 2000-04-12 | 1998-10-07 | 26800464 | Great | Texas Instruments Inc | Texas Instruments Inc |
| US7292651B2 | 0.985 | Pilot-aided channel estimation for OFDM in wireless systems | GRANT | 2007-11-06 | 1998-12-31 | 29586247 | Great | AT&T Corp | AT&T Corp |
| US6650617B1 | 0.964 | Reduced complexity FFT window synchronization for an orthogonal frequency division multiplexing system | GRANT | 2003-11-18 | 2000-02-22 | 24033801 | Great | Thomson Licensing SAS | Thomson Licensing SAS |
| US7009932B2 | 0.947 | Frequency tracking device for a receiver of a multi-carrier communication system | GRANT | 2006-03-07 | 2000-06-05 | 8168815 | Great | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US20010015954A1 | 0.935 | Orthogonal frequency division multiplexing receiver device | APPLICATION | 2001-08-23 | 2000-02-18 | 18569150 | Great | Denso Corp | Denso Corp |
| US7724720B2 | 0.933 | Method for transmitting a sequence of symbols | GRANT | 2010-05-25 | 1999-07-09 | 8555066 | Great | Nokia Oyj | Nokia Technologies Oy, Vringo Infrastructure Inc |
| US6473467B1 | 0.912 | Method and apparatus for measuring reporting channel state information in a high efficiency high performance communications system | GRANT | 2002-10-29 | 2000-03-22 | 24150335 | Great | Qualcomm Inc | Qualcomm Inc |
| US6141393A | 0.907 | Method and device for channel estimation equalization and interference suppression | GRANT | 2000-10-31 | 1999-03-03 | 22993631 | Great | Motorola Inc | Google Technology Holdings LLC |
| US6768713B1 | 0.896 | Orthogonal frequency division multiplexing receiver with iterative channel estimation and a corresponding method | GRANT | 2004-07-27 | 1999-09-13 | 9549773 | Great | France Telecom SA | Orange SA |
| US6952394B1 | 0.890 | Method for transmitting and receiving orthogonal frequency division multiplexing signal and apparatus therefor | GRANT | 2005-10-04 | 1999-05-25 | 26635233 | Great | Samsung Electronics Co Ltd | Samsung Electronics Co Ltd |
| US5712877A | 0.878 | Pilot-symbol aided continuous phase modulation system | GRANT | 1998-01-27 | 1995-05-26 | 23792245 | Great | Simon Fraser University | Simon Fraser University |
| US6654339B1 | 0.876 | Synchronization symbol structure using OFDM based transmission method | GRANT | 2003-11-25 | 1999-01-08 | 26152852 | Great | Sony International Europe GmbH | Wi-Fi One LLC |
| US6826240B1 | 0.864 | Method and device for multi-user channel estimation | GRANT | 2004-11-30 | 2000-03-15 | 33452548 | Great | Motorola Inc | Motorola Solutions Inc |
| EP0689313A2 | 0.862 | AFC for OFDM using windowing | GRANT | 1995-12-27 | 1994-05-26 | 15220735 | Great | NEC Corp, Nippon Hoso Kyokai NHK, Japan Broadcasting Corp | NEC Corp, Japan Broadcasting Corp |
| EP0734132A2 | 0.862 | Signal structure for multicarrier modulation which reduces the overhead requirement | GRANT | 1996-09-25 | 1995-03-23 | 13241746 | Great | Toshiba Corp | Toshiba Corp |
| US9118387B2 | 0.861 | Pilot reference transmission for a wireless communication system | GRANT | 2015-08-25 | 1997-11-03 | 38919051 | Great | Qualcomm Inc | Qualcomm Inc |
| US6707856B1 | 0.839 | Transmission of system configuration information | GRANT | 2004-03-16 | 1999-10-07 | 31946993 | Great | Cisco Technology Inc | Cisco Technology Inc |
| US5737327A | 0.835 | Method and apparatus for demodulation and power control bit detection in a spread spectrum communication system | GRANT | 1998-04-07 | 1996-03-29 | 24501573 | Great | Motorola Inc | Apple Inc |
| US6269131B1 | 0.820 | Physical channel estimator | GRANT | 2001-07-31 | 1998-05-28 | 22202074 | Great | Glenayre Electronics Inc | Quarterhill Inc |
| US6807147B1 | 0.818 | Methods and apparatus for use in obtaining frame synchronization in an OFDM communication system | GRANT | 2004-10-19 | 1999-06-23 | 33134560 | Great | AT&T Wireless Services Inc | AT&T Mobility II LLC, AT&T Wireless Services Inc |
| US6298035B1 | 0.817 | Estimation of two propagation channels in OFDM | GRANT | 2001-10-02 | 1999-12-21 | 23859301 | Great | Nokia Networks Oy | Nokia Technologies Oy |
| EP0876002A2 | 0.812 | Pilot interference cancellation for a coherent wireless code division multiple access receiver | GRANT | 1998-11-04 | 1997-04-30 | 25284563 | Great | Nokia of America Corp | Nokia of America Corp |
| US6470044B1 | 0.807 | Computationally parsimonious forward link receiver for DS-CDMA systems and method for same | GRANT | 2002-10-22 | 1999-01-15 | 22872632 | Great | Sharp Laboratories of America Inc | Sharp Laboratories of America Inc |
| US6091702A | 0.804 | Method and apparatus for symbol synchronization in orthogonal frequency division multiplexing systems | GRANT | 2000-07-18 | 1996-07-31 | 16732452 | Great | Victor Company of Japan Ltd | Rakuten Group Inc |
| US6765969B1 | 0.802 | Method and device for multi-user channel estimation | GRANT | 2004-07-20 | 1999-09-01 | 32684535 | Great | Motorola Inc | Motorola Solutions Inc |
| US5809083A | 1.287 | Differentially encoded pilot word system and method for wireless transmissions of digital data | GRANT | 1998-09-15 | 1994-11-23 | 23349633 | Good | AT&T Wireless Services Inc | AT&T Mobility II LLC, AT&T Wireless Services Inc |
| US5596608A | 1.112 | Fading distortion compensation method and circuit | GRANT | 1997-01-21 | 1993-05-11 | 15087688 | Good | Hitachi Denshi KK | Hitachi Denshi KK |
| US6570909B1 | 0.795 | Interference suppression in a CDMA receiver | GRANT | 2003-05-27 | 1999-07-09 | 23375698 | Good | Nokia Mobile Phones Ltd | HMD Global Oy |
| US7664193B2 | 0.785 | Multiplexing of real time services and non-real time services for OFDM systems | GRANT | 2010-02-16 | 2000-03-22 | 35005179 | Good | Qualcomm Inc | Qualcomm Inc |
| EP1043861A1 | 0.780 | Frequency hopping multicarrier transmission in segmented cells | GRANT | 2000-10-11 | 1999-03-11 | 23014295 | Good | Nokia of America Corp | Nokia of America Corp |
| US6424679B1 | 0.780 | Space time block coded transmit antenna diversity for WCDMA | GRANT | 2002-07-23 | 1998-10-07 | 26800468 | Good | Texas Instruments Inc | Intel Corp |
| US6178194B1 | 0.774 | Cellular mobile telephone system | GRANT | 2001-01-23 | 1997-01-16 | 11617463 | Good | NEC Corp | NEC Corp |
| US6606296B1 | 0.765 | Data transmission method and radio system | GRANT | 2003-08-12 | 1997-01-16 | 8547638 | Good | Nokia Oyj | Nokia Technologies Oy |
| US6930989B1 | 0.763 | Wide frequency offset correction using encoded interburst phase differences | GRANT | 2005-08-16 | 2000-06-20 | 34826282 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US6907026B2 | 0.761 | Receiving apparatus for signal transmission system of orthogonal frequency division multiplexing type | GRANT | 2005-06-14 | 2000-06-27 | 18691473 | Good | Hitachi Kokusai Electric Inc | Hitachi Kokusai Electric Inc |
| US6483821B1 | 0.760 | CDMA mobile communications system and method with improved channel estimation and pilot symbol transmission | GRANT | 2002-11-19 | 1998-04-22 | 22172666 | Good | Texas Instruments Inc | Texas Instruments Inc |
| EP0721264A1 | 0.750 | METHOD AND DEVICE FOR RECEIVING CODE-DIVISION MULTIPLEX SIGNAL | GRANT | 1996-07-10 | 1994-06-23 | 15301203 | Good | Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc | NTT Docomo Inc, Nippon Telegraph and Telephone Corp |
| EP1028556A2 | 0.749 | Space-time diversity for WCDMA | GRANT | 2000-08-16 | 1999-02-12 | 27382359 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6487253B1 | 0.749 | OFDM channel estimation in the presence of interference | GRANT | 2002-11-26 | 1999-10-04 | 23626913 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US7095791B2 | 0.739 | OFDM interference cancellation based on training symbol interference | GRANT | 2006-08-22 | 2000-05-04 | 35430541 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US20030138058A1 | 0.726 | Diversity coded OFDM for high data-rate communication | APPLICATION | 2003-07-24 | 1998-02-06 | 46282010 | Good | ||
| US5732113A | 0.722 | Timing and frequency synchronization of OFDM signals | GRANT | 1998-03-24 | 1996-06-20 | 24673373 | Good | Leland Stanford Junior University | Leland Stanford Junior University |
| US6442214B1 | 0.721 | Diversity transmitter based on linear transform processing of transmitted information | GRANT | 2002-08-27 | 2000-05-19 | 24296403 | Good | Iospan Wireless Inc | Apple Inc |
| US7512409B1 | 0.721 | Cellular network system | GRANT | 2009-03-31 | 2000-01-13 | 23914351 | Good | Zion Hadad Communications Ltd | Zion Hadad Communications Ltd |
| US5594757A | 0.715 | Method and apparatus for digital automatic frequency control | GRANT | 1997-01-14 | 1994-07-28 | 23079428 | Good | Motorola Inc | Google Technology Holdings LLC |
| EP0752779A2 | 0.712 | Distribution of phase of references in a multicarrier system | GRANT | 1997-01-08 | 1995-07-03 | 8543725 | Good | Nokia Mobile Phones Ltd, Nokia Networks Oy | Nokia Mobile Phones Ltd, Nokia Networks Oy, Nokia Oyj |
| US6317411B1 | 0.711 | Method and system for transmitting and receiving signals transmitted from an antenna array with transmit diversity techniques | GRANT | 2001-11-13 | 1999-02-22 | 22961697 | Good | Motorola Inc | Google Technology Holdings LLC |
| US6061327A | 0.700 | Device and method for vector equalization of an OFDM signal | GRANT | 2000-05-09 | 1996-09-30 | 9496160 | Good | Thomson Licensing SAS | Thomson Licensing SAS |
| US6131016A | 0.694 | Method and apparatus for enhancing communication reception at a wireless communication terminal | GRANT | 2000-10-10 | 1997-08-27 | 25443236 | Good | AT&T Corp | AT&T Corp |
| US5724388A | 0.693 | Digital signal modulation analysis device | GRANT | 1998-03-03 | 1994-04-22 | 14471911 | Good | Advantest Corp | BALLARINI INDUSTRIES Inc, Advantest Corp |
| US6158041A | 0.691 | System and method for I/Q trellis coded modulation | GRANT | 2000-12-05 | 1998-10-14 | 22630035 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US7428265B1 | 0.689 | Systems and methods for optimal symbol spacing to minimize intersymbol interference in a receiver | GRANT | 2008-09-23 | 1999-11-12 | 39764199 | Good | Cornell Research Foundation Inc | Cornell Research Foundation Inc |
| US6282185B1 | 0.687 | Transmitting and receiving method and radio system | GRANT | 2001-08-28 | 1996-09-05 | 8546608 | Good | Nokia Networks Oy | Nokia Technologies Oy |
| US8290084B2 | 0.680 | Space time transmit diversity for TDD/WCDMA systems | GRANT | 2012-10-16 | 1999-02-25 | 32330007 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US5170413A | 0.680 | Control strategy for reuse system assignments and handoff | GRANT | 1992-12-08 | 1990-12-24 | 24536089 | Good | Motorola Inc | Motorola Solutions Inc |
| US6359926B1 | 0.674 | Multi-carrier transmission systems | GRANT | 2002-03-19 | 1996-09-02 | 20403749 | Good | STMicroelectronics NV | RPX Corp |
| WO1998019405A1 | 0.672 | METHOD AND APPARATUS FOR PERFORMING DATA RATE DETERMINATION | APPLICATION | 1998-05-07 | 1996-10-30 | 24979883 | Good | ||
| US6222891B1 | 0.671 | Timing recovery using the pilot signal in high definition TV | GRANT | 2001-04-24 | 1998-11-03 | 27557722 | Good | Broadcom Corp | Avago Technologies International Sales Pte Ltd |
| US5764687A | 0.664 | Mobile demodulator architecture for a spread spectrum multiple access communication system | GRANT | 1998-06-09 | 1995-06-20 | 23956850 | Good | Qualcomm Inc | Qualcomm Inc |
| WO2001071928A2 | 0.663 | HIGH EFFICIENCY HIGH PERFORMANCE COMMUNICATIONS SYSTEM EMPLOYING MULTI-CARRIER MODULATION | APPLICATION | 2001-09-27 | 2000-03-22 | 24122043 | Good | ||
| US6438173B1 | 0.662 | Multicarrier transmission system for irregular transmission of data blocks | GRANT | 2002-08-20 | 1997-08-05 | 7838040 | Good | Infineon Technologies AG | Siemens AG, Intel Germany Holding GmbH |
| US20040196916A1 | 0.660 | Optimized synchronization preamble structure | APPLICATION | 2004-10-07 | 1999-06-16 | 8238373 | Good | Sony Deutschland GmbH | Sony Deutschland GmbH |
| US6005876A | 0.653 | Method and apparatus for mobile data communication | GRANT | 1999-12-21 | 1996-03-08 | 26682576 | Good | AT&T Corp | AT&T Corp |
| EP1011211A1 | 0.652 | BASE STATION APPARATUS OF MOBILE COMMUNICATION SYSTEM | GRANT | 2000-06-21 | 1997-04-17 | 14681121 | Good | Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc | NTT Docomo Inc |
| US6618454B1 | 0.650 | Diversity coded OFDM for high data-rate communication | GRANT | 2003-09-09 | 1998-02-06 | 26755041 | Good | AT&T Corp | AT&T Corp |
| US8315326B2 | 0.650 | Apparatus for generating at least one signal based on at least one aspect of at least two received signals | GRANT | 2012-11-20 | 2000-06-13 | 39774550 | Good | Aloft Media LLC | Comcast Cable Communications LLC |
| US5914933A | 0.648 | Clustered OFDM communication system | GRANT | 1999-06-22 | 1996-03-08 | 26682577 | Good | Nokia of America Corp | Nokia of America Corp |
| US6208669B1 | 0.646 | Method and apparatus for mobile data communication | GRANT | 2001-03-27 | 1996-09-24 | 24887209 | Good | AT&T Corp | AT&T Corp |
| US6430148B1 | 0.633 | Multidirectional communication systems | GRANT | 2002-08-06 | 1997-12-22 | 10824026 | Good | LSI Logic Corp | Avago Technologies International Sales Pte Ltd |
| WO1997001256A1 | 0.633 | ADAPTIVE CHANNEL ALLOCATION IN A FREQUENCY DIVISION MULTIPLEXED SYSTEM | APPLICATION | 1997-01-09 | 1995-06-22 | 23960420 | Good | ||
| USRE43703E1 | 0.630 | Transmission system for OFDM-signals with optimized synchronization | GRANT | 2012-10-02 | 1997-09-04 | 45922246 | Good | Sony Deutschland GmbH | Redwood Technologies LLC |
| US5799047A | 0.627 | Carrier synchronization unit and synchronization method | GRANT | 1998-08-25 | 1995-09-25 | 17144945 | Good | NEC Corp | NEC Corp |
| US6711123B1 | 0.624 | Receiving apparatus for OFDM communication system | GRANT | 2004-03-23 | 1999-02-15 | 12457667 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| EP1039684A1 | 0.623 | Spread spectrum multiple access based on multicarrier modulation | GRANT | 2000-09-27 | 1999-03-11 | 23014287 | Good | Nokia of America Corp | Qualcomm Flarion Technologies Inc |
| WO1998043362A2 | 0.620 | METHOD AND APPARATUS FOR REDUCING SPREAD-SPECTRUM NOISE | APPLICATION | 1998-10-01 | 1997-03-26 | 11069967 | Good | ||
| US6985468B2 | 0.619 | Memory circuit and coherent detection circuit | GRANT | 2006-01-10 | 2000-02-03 | 18552059 | Good | Panasonic Corp | Socionext Inc |
| US5627863A | 0.614 | Frame synchronization in multicarrier transmission systems | GRANT | 1997-05-06 | 1994-07-15 | 23052168 | Good | Amati Communications Corp | Texas Instruments Inc |
| US5822368A | 0.603 | Developing a channel impulse response by using distortion | GRANT | 1998-10-13 | 1996-04-04 | 24517561 | Good | Nokia of America Corp | Infineon Technologies AG |
| US7948865B2 | 0.596 | Bi-directional communication channel | GRANT | 2011-05-24 | 1999-03-25 | 34102554 | Good | ||
| US6249250B1 | 0.591 | Adaptive variable directional antenna | GRANT | 2001-06-19 | 1998-01-08 | 11535476 | Good | Toshiba Corp | Toshiba Corp |
| WO1999029046A1 | 0.590 | METHOD AND APPARATUS FOR COHERENTLY-AVERAGED POWER ESTIMATION | APPLICATION | 1999-06-10 | 1997-12-04 | 25531283 | Good | ||
| US6865237B1 | 0.588 | Method and system for digital signal transmission | GRANT | 2005-03-08 | 2000-02-22 | 34222451 | Good | Nokia Mobile Phones Ltd | Commworks Solutions LLC |
| US6549592B1 | 0.587 | Enhanced synchronization burst for OFDM systems | GRANT | 2003-04-15 | 1998-02-06 | 26755532 | Good | Cisco Technology Inc | Cisco Technology Inc |
| US6064645A | 0.583 | Bulk filtering and demodulation of independent FDMA sources | GRANT | 2000-05-16 | 1997-12-22 | 25541664 | Good | TRW Inc | Northrop Grumman Systems Corp |
| US7733966B2 | 0.581 | System and method for space diversified linear block interleaving | GRANT | 2010-06-08 | 1997-12-30 | 46300097 | Good | SUMMIT Tech SYSTEMS LP | SUMMIT Tech SYSTEMS LP |
| US6515960B1 | 0.579 | Radio communication system | GRANT | 2003-02-04 | 1997-08-27 | 16919485 | Good | Sony Corp | Sony Corp |
| US6115427A | 0.579 | Method and apparatus for data transmission using multiple transmit antennas | GRANT | 2000-09-05 | 1996-04-26 | 26689384 | Good | AT&T Corp | AT&T Corp |
| EP1226673A1 | 0.573 | FIXED OFDM WIRELESS MAN UTILIZING CPE HAVING INTERNAL ANTENNA | GRANT | 2002-07-31 | 1999-10-22 | 22579851 | Good | NextNet Wireless Inc | NextNet Wireless Inc |
| US6937557B1 | 0.573 | OFDM communication apparatus | GRANT | 2005-08-30 | 1999-08-27 | 17066052 | Good | Panasonic Corp | Panasonic Intellectual Property Corp of America |
| US6658044B1 | 0.570 | Frequency hopping communication device and frequency hopping method | GRANT | 2003-12-02 | 1999-06-23 | 19594572 | Good | Samsung Thomson CSF Co Ltd | Hanwha Systems Co Ltd |
| US6944120B2 | 0.565 | Method and system for tiered digital television terrestrial broadcasting services using multi-bit-stream frequency interleaved OFDM | GRANT | 2005-09-13 | 2000-04-12 | 22724815 | Good | Canada Minister of Industry | Canada, AS REPRESENTED BY TH MINISTER OF INDUSTRY, Apple Inc |
| EP1172944A2 | 0.564 | Wireless transmitter and receiver | GRANT | 2002-01-16 | 2000-07-05 | 22804469 | Good | Texas Instruments Inc | Texas Instruments Inc |
| US6631143B1 | 0.561 | Methods and apparatus for frame synchronization in a digital audio broadcasting system | GRANT | 2003-10-07 | 1999-11-12 | 23742040 | Good | Nokia of America Corp | Nokia of America Corp |
| WO1998038758A2 | 0.560 | ORTHOGONAL CODE SYNCHRONIZATION SYSTEM AND METHOD FOR SPREAD SPECTRUM CDMA COMMUNICATIONS | APPLICATION | 1998-09-03 | 1997-02-28 | 25195867 | Good | ||
| EP0656706A2 | 0.559 | Synchronisation of OFDM signals | GRANT | 1995-06-07 | 1993-11-12 | 17667385 | Good | Toshiba Corp | Toshiba Corp |
| US6185258B1 | 0.559 | Transmitter diversity technique for wireless communications | GRANT | 2001-02-06 | 1997-09-16 | 27369572 | Good | AT&T Wireless Services Inc | AT&T Mobility II LLC, AT&T Wireless Services Inc |
| US7020072B1 | 0.559 | Orthogonal frequency division multiplexing transmit diversity system for frequency-selective fading channels | GRANT | 2006-03-28 | 2000-05-09 | 24270190 | Good | Nokia of America Corp | Nokia of America Corp |
| EP0441731A1 | 0.555 | Method of data broadcasting using time-frequency interleaving and coherent demodulation | GRANT | 1991-08-14 | 1990-02-06 | 9393517 | Good | Telediffusion de France ets Public de Diffusion, Francais Etat, Centre National dEtudes des Telecommunications CNET | Telediffusion de France ets Public de Diffusion, Orange SA |
| US8064409B1 | 0.552 | Method and apparatus using a multi-carrier forward link in a wireless communication system | GRANT | 2011-11-22 | 1999-08-25 | 23508949 | Good | Qualcomm Inc | Qualcomm Inc |
| US7324437B1 | 0.551 | Method for co-channel interference cancellation in a multicarrier communication system | GRANT | 2008-01-29 | 1999-11-27 | 8167514 | Good | Deutsche Telekom AG | Deutsche Telekom AG |
| US6148007A | 0.551 | Method for data transmission in a digital audio broadcasting system | GRANT | 2000-11-14 | 1998-03-27 | 21958652 | Good | USA Digital Radio Partners LP | Ibiquity Digital Corp |
| US8718163B2 | 0.547 | Method for seamlessly changing power modes in an ADSL system | GRANT | 2014-05-06 | 1999-03-12 | 37494073 | Good | Intellectual Ventures II LLC | Intellectual Ventures II LLC |
| US6990061B2 | 0.546 | Method and apparatus for channel estimation | GRANT | 2006-01-24 | 2000-05-31 | 22774648 | Good | Interuniversitair Microelektronica Centrum vzw IMEC, National Semiconductor Corp | Interuniversitair Microelektronica Centrum vzw IMEC, National Semiconductor Corp |
| EP0760564A2 | 0.541 | Random access in multicarrier systems | GRANT | 1997-03-05 | 1995-08-28 | 20399295 | Good | Telia AB | Telia AB |
| US5754599A | 0.541 | Method and apparatus for coherent channel estimation in a communication system | GRANT | 1998-05-19 | 1996-01-04 | 24330758 | Good | Motorola Inc | Google Technology Holdings LLC |
| US6678337B1 | 0.540 | Method and device for demodulating receive signal including a pilot signal | GRANT | 2004-01-13 | 1998-08-05 | 16766437 | Good | NEC Corp | NEC Corp |
| US6144711A | 0.538 | Spatio-temporal processing for communication | GRANT | 2000-11-07 | 1996-08-29 | 26699473 | Good | Cisco Systems Inc | Cisco Technology Inc, Cisco Systems Inc |
| EP0869646A2 | 0.537 | Complementary encoding and modulation for multicarrier transmission | GRANT | 1998-10-07 | 1997-04-01 | 25267497 | Good | Nokia of America Corp | Nokia of America Corp |
| US6985534B1 | 0.527 | Channel allocation method and device for coded and combined information sets | GRANT | 2006-01-10 | 1998-10-27 | 7885832 | Good | Siemens AG | Nokia Solutions and Networks GmbH and Co KG |
| US8068453B2 | 0.527 | Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel | GRANT | 2011-11-29 | 1999-10-07 | 23642838 | Good | Qualcomm Inc | Qualcomm Inc |
| US7400614B2 | 0.526 | Methods and apparatus for downlink diversity in CDMA using Walsh codes | GRANT | 2008-07-15 | 1999-04-19 | 23134378 | Good | Nokia of America Corp | Nokia of America Corp, WSOU Investments LLC |
| US6731594B1 | 0.526 | Transmission system for OFDM-signals with optimized synchronisation | GRANT | 2004-05-04 | 1997-09-04 | 8227316 | Good | Sony International Europe GmbH | Redwood Technologies LLC |
| US6795424B1 | 0.526 | Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems | GRANT | 2004-09-21 | 1998-06-30 | 22313783 | Good | Tellabs Operations Inc | Coriant Operations Inc |
| US6785258B1 | 0.524 | System and method for data scrambling to reduce the crest factor in an OFDM waveform | GRANT | 2004-08-31 | 1999-06-23 | 32911679 | Good | AT&T Wireless Services Inc | Canon Inc |
| US5481565A | 0.516 | Method and apparatus for channel equalization | GRANT | 1996-01-02 | 1993-10-18 | 22487451 | Good | AT&T Corp | AT&T Corp |
| US6839335B1 | 0.515 | Radio communication apparatus and radio communication method | GRANT | 2005-01-04 | 1999-07-02 | 16242671 | Good | Panasonic Corp | INVT SPE LLC |
| US7068628B2 | 0.507 | MIMO OFDM system | GRANT | 2006-06-27 | 2000-05-22 | 26901119 | Good | AT&T Corp | AT&T Intellectual Property II LP |
| US4881241A | 0.507 | Method and installation for digital communication particularly between and toward moving vehicles | GRANT | 1989-11-14 | 1988-02-24 | 22574680 | Good | Telediffusion de France ets Public de Diffusion, Centre National dEtudes des Telecommunications CNET | ETAT FRANCAIS REPRESENTE PAR LE SECRETARIAT D'ETAT AUX POSTES ET TELECOMMUNICATIONS (CENTRE NATIONAL D'ETUDES DES TELECOMMUNICATIONS), Telediffusion de France ets Public de Diffusion, France Telecom R&D SA |
| US7995531B2 | 0.506 | Method and apparatus for high rate packet data transmission | GRANT | 2011-08-09 | 1997-11-03 | 32961187 | Good | Qualcomm Inc | Qualcomm Inc |
| US5652772A | 0.505 | Method and apparatus for synchronization in digital transmisison systems of the OFDM type | GRANT | 1997-07-29 | 1993-07-20 | 20390641 | Good | Telia AB | Intellectual Ventures I LLC |
| US6891903B2 | 0.495 | Multiple transmit antenna differential detection from generalized orthogonal designs | GRANT | 2005-05-10 | 1999-04-22 | 26896639 | Good | AT&T Corp | AT&T Corp |
| EP0810746A2 | 0.494 | Transmission apparatus using a multi-carrier signal with allocation of subcarriers | GRANT | 1997-12-03 | 1996-05-27 | 15081285 | Good | Sony Corp | Sony Corp |
| US6088408A | 0.493 | Decoding for generalized orthogonal designs for space-time codes for wireless communication | GRANT | 2000-07-11 | 1998-11-06 | 22686776 | Good | AT&T Corp | AT&T Corp |
| WO1995019671A1 | 0.490 | METHOD AND ARRANGEMENT FOR SYNCHRONIZATION IN OFDM MODULATION | APPLICATION | 1995-07-20 | 1994-01-18 | 20392588 | Good | ||
| US6628638B1 | 0.488 | Method and apparatus for receiving diversity signals for use in OFDM radio communication system | GRANT | 2003-09-30 | 1998-01-08 | 11531353 | Good | Toshiba Corp | Toshiba Corp |
| US5544156A | 0.484 | Direct sequence CDMA coherent uplink detector | GRANT | 1996-08-06 | 1994-04-29 | 22885863 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5727032A | 0.481 | Method and device for estimating transmitted signals in a receiver in digital signal transmission operations | GRANT | 1998-03-10 | 1993-06-24 | 20390418 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US5734646A | 0.481 | Code division multiple access system providing load and interference based demand assignment service to users | GRANT | 1998-03-31 | 1995-10-05 | 24151375 | Good | Nokia of America Corp | Nokia of America Corp |
| US5583886A | 0.471 | Method for determining a plurality of channel responses and modifying a received signal therewith | GRANT | 1996-12-10 | 1992-12-03 | 25531145 | Good | Motorola Inc | Motorola Solutions Inc |
| US5343499A | 0.471 | Quadrature amplitude modulation synchronization method | GRANT | 1994-08-30 | 1990-06-12 | 25225267 | Good | Motorola Inc | Motorola Solutions Inc |
| US5781541A | 0.471 | CDMA system having time-distributed transmission paths for multipath reception | GRANT | 1998-07-14 | 1995-05-03 | 23724227 | Good | Bell Atlantic Network Services Inc | Verizon Patent and Licensing Inc |
| US5282222A | 0.466 | Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum | GRANT | 1994-01-25 | 1992-03-31 | 25336586 | Good | Quarterhill Inc | Quarterhill Inc |
| EP0562868A2 | 0.466 | Method and apparatus for multiple access between transceivers in wireless communication using OFDM spread spectrum | GRANT | 1993-09-29 | 1992-03-27 | 25675066 | Good | WiLAN Inc | Quarterhill Inc |
| WO1999045657A1 | 0.465 | DECODING OF SPACE-TIME CODED SIGNALS FOR WIRELESS COMMUNICATION | APPLICATION | 1999-09-10 | 1998-03-03 | 26758288 | Good | ||
| US5838268A | 0.463 | Apparatus and methods for modulation and demodulation of data | GRANT | 1998-11-17 | 1997-03-14 | 25225431 | Good | Orckit Communications Ltd | STMicroelectronics NV |
| US5450456A | 0.461 | Method and arrangement for measuring the carrier frequency deviation in a multi-channel transmission system | GRANT | 1995-09-12 | 1993-11-12 | 22538566 | Good | Daimler Benz AG | Continental Electronics Corp |
| US6697351B1 | 0.460 | Filter for telecommunications system | GRANT | 2004-02-24 | 1999-11-09 | 8241725 | Good | Nokia of America Corp | Nokia of America Corp |
| US6501803B1 | 0.458 | Low complexity maximum likelihood detecting of concatenated space codes for wireless applications | GRANT | 2002-12-31 | 1998-10-05 | 22607325 | Good | AT&T Wireless Services Inc | AT&T Mobility II LLC, AT&T Wireless Services Inc |
| US20010043578A1 | 0.454 | ENHANCED ACCESS IN WIRELESS COMMUNICATION SYSTEMS UNDER RAPIDLY FLUCTUATING FADING CONDITIONS | APPLICATION | 2001-11-22 | 1997-08-27 | 25441316 | Good | Nokia of America Corp | Nokia of America Corp, WSOU Investments LLC |
| US6137843A | 0.448 | Methods and apparatus for canceling adjacent channel signals in digital communications systems | GRANT | 2000-10-24 | 1995-02-24 | 25414651 | Good | Ericsson Inc | Ericsson Inc |
| EP0825741A2 | 0.444 | Communication method and apparatus | GRANT | 1998-02-25 | 1996-08-23 | 16790085 | Good | Sony Corp | Sony Corp |
| US6512738B1 | 0.441 | Apparatus for and method of receiving diversity | GRANT | 2003-01-28 | 1998-01-14 | 11628353 | Good | Toshiba Corp | Toshiba Corp |
| US6473393B1 | 0.436 | Channel estimation for OFDM systems with transmitter diversity | GRANT | 2002-10-29 | 1998-12-18 | 22801535 | Good | AT&T Corp | AT&T Corp |
| EP0786890A2 | 0.431 | Resource allocation in a multi-user multicarrier mobile radio system | GRANT | 1997-07-30 | 1996-01-29 | 11819675 | Good | Sony Corp | Sony Corp |
| US7656961B2 | 0.431 | Method and apparatus for multi-user transmission | GRANT | 2010-02-02 | 1999-04-19 | 34864177 | Good | Interuniversitair Microelektronica Centrum vzw IMEC | RPX Corp |
| US6317466B1 | 0.430 | Wireless communications system having a space-time architecture employing multi-element antennas at both the transmitter and receiver | GRANT | 2001-11-13 | 1998-04-15 | 22030957 | Good | Nokia of America Corp | Nokia Technologies Oy, Alcatel Lucent SAS |
| US6625113B1 | 0.430 | Digital signal frame and interleaver synchronizer | GRANT | 2003-09-23 | 1999-08-30 | 28042109 | Good | Agere Systems LLC | Avago Technologies International Sales Pte Ltd, Nokia of America Corp |
| US5729526A | 0.430 | Asynchronous transfer mode type multimedia radiocommunication system | GRANT | 1998-03-17 | 1995-10-31 | 17659672 | Good | Fujitsu Ltd | Fujitsu Ltd |
| USRE42236E1 | 0.429 | Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing | GRANT | 2011-03-22 | 1995-02-06 | 38428183 | Good | ADC Telecommunications Inc | HTC Corp |
| US5307376A | 0.425 | Device for the coherent demodulation of time-frequency interlaced digital data with estimation of the frequency response of the transmission channel and threshold and corresponsing transmitter | GRANT | 1994-04-26 | 1991-01-17 | 9408899 | Good | France Telecom SA | Telediffusion de France ets Public de Diffusion, Orange SA |
| US20020039388A1 | 0.420 | High data-rate powerline network system and method | APPLICATION | 2002-04-04 | 2000-02-29 | 22682842 | Good | Inari Inc | Thomson Licensing SAS, Inari Inc |
| US6389085B1 | 0.419 | Receiver combiner for spatial diversity digital communications | GRANT | 2002-05-14 | 1998-01-14 | 21724793 | Good | Vecima Networks Inc | Vecima Networks Inc |
| US6549585B2 | 0.419 | Combined interference cancellation and maximum likelihood decoding of space-time block codes | GRANT | 2003-04-15 | 1997-10-06 | 26740775 | Good | AT&T Corp | AT&T Corp |
| US6704370B1 | 0.418 | Interleaving methodology and apparatus for CDMA | GRANT | 2004-03-09 | 1998-10-09 | 26800835 | Good | Nortel Networks Ltd | Apple Inc |
| WO2000014921A1 | 0.416 | COMBINED CHANNEL CODING AND SPACE-BLOCK CODING IN A MULTI-ANTENNA ARRANGEMENT | APPLICATION | 2000-03-16 | 1998-09-04 | 26795775 | Good | ||
| USRE41771E1 | 0.415 | System for multiple use subchannels | GRANT | 2010-09-28 | 1995-02-06 | 38873558 | Good | ADC Telecommunications Inc | HTC Corp |
| US6662367B2 | 0.411 | Poly-phase filters in multicarrier communication systems | GRANT | 2003-12-09 | 1995-02-06 | 27095858 | Good | ADC Telecommunications Inc | HTC Corp |
| WO2001001605A1 | 0.407 | HIGH-SPEED DATA SERVICES USING MULTIPLE TRANSMIT ANTENNAS | APPLICATION | 2001-01-04 | 1999-06-28 | 27495465 | Good | ||
| WO2001082544A2 | 0.407 | PROTOCOL FOR A COMMUNICATION SYSTEM USING OVERLAID SIGNALS AND MULTI-CARRIER FREQUENCY COMMUNICATION | APPLICATION | 2001-11-01 | 2000-04-21 | 24210357 | Good | ||
| WO1993015573A1 | 0.406 | CDMA/TDMA COMMUNICATION SYSTEM | APPLICATION | 1993-08-05 | 1992-01-29 | 10709454 | Good | ||
| EP1106026A1 | 0.405 | MULTIPLE FREQUENCY ALLOCATION RADIO FREQUENCY DEVICE AND METHOD | GRANT | 2001-06-13 | 1998-08-18 | 26792242 | Good | Motorola Inc | Motorola Solutions Inc, Motorola Mobility LLC |
| EP1143630A1 | 0.394 | A receiver for a CDMA mobile radiocommunication system | GRANT | 2001-10-10 | 2000-04-07 | 8173638 | Good | Alcatel CIT SA, Alcatel SA | Alcatel CIT SA, Alcatel SA |
| US6765951B2 | 0.386 | Method for estimating the channel impulse response of a mobile radio channel | GRANT | 2004-07-20 | 1999-07-15 | 7914944 | Good | Infineon Technologies AG | Apple Inc, Intel Corp |
| US5444697A | 0.383 | Method and apparatus for frame synchronization in mobile OFDM data communication | GRANT | 1995-08-22 | 1993-08-11 | 22301134 | Good | University of British Columbia | University of British Columbia |
| WO1999023766A2 | 0.382 | MAXIMUM LIKELIHOOD DETECTION OF CONCATENATED SPACE-TIME CODES FOR WIRELESS APPLICATIONS WITH TRANSMITTER DIVERSITY | APPLICATION | 1999-05-14 | 1997-10-31 | 26743809 | Good | ||
| EP1180866A1 | 0.381 | BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD | GRANT | 2002-02-20 | 2000-03-27 | 18602162 | Good | Panasonic Corp | Panasonic Corp |
| US5781583A | 0.380 | Method and system for communication over multiple channels in a spread spectrum communication system | GRANT | 1998-07-14 | 1996-01-19 | 24356936 | Good | Motorola Inc | Google Technology Holdings LLC |
| US6922388B1 | 0.375 | Signal construction detection and estimation for uplink timing synchronization and access control in a multi-access wireless communication system | GRANT | 2005-07-26 | 2000-02-11 | 24000524 | Good | Nokia of America Corp | GEMATLO SA, Alcatel Lucent SAS, Thales DIS France SA |
| US6452987B1 | 0.374 | Fast start-up in discrete multi-tone (DMT) based communications system | GRANT | 2002-09-17 | 1998-11-25 | 22738975 | Good | Nokia of America Corp | Nokia of America Corp |
| US5973642A | 0.364 | Adaptive antenna arrays for orthogonal frequency division multiplexing systems with co-channel interference | GRANT | 1999-10-26 | 1998-04-01 | 21983127 | Good | AT&T Corp | AT&T Corp |
| US5357502A | 0.359 | Device for the reception of digital data time frequency interlacing notably for radio broadcasting at high bit rate towards mobile receivers with nyquist temporal window | GRANT | 1994-10-18 | 1990-02-06 | 26227848 | Good | France Telecom and Telediffusion de France SA | Telediffusion de France ets Public de Diffusion, Orange SA, France Telecom and Telediffusion de France SA |
| US6314146B1 | 0.358 | Peak to average power ratio reduction | GRANT | 2001-11-06 | 1998-06-05 | 22232708 | Good | Leland Stanford Junior University | Leland Stanford Junior University |
| US6470043B1 | 0.357 | Near-optimal low-complexity decoding of space-time codes for fixed wireless applications | GRANT | 2002-10-22 | 1997-12-23 | 26743772 | Good | AT&T Wireless Services Inc | AT&T Mobility II LLC, AT&T Wireless Services Inc |
| US6456606B1 | 0.356 | Handoff control in an asynchronous CDMA system | GRANT | 2002-09-24 | 1999-03-24 | 23052680 | Good | Qualcomm Inc | Qualcomm Inc |
| US6002716A | 0.356 | Equalizer with extended channel estimation for a receiver in a digital transmission system | GRANT | 1999-12-14 | 1996-04-12 | 7791124 | Good | US Philips Corp | ST Ericsson SA |
| US5933454A | 0.352 | Multi-carrier data transmissions system using an overhead bus for synchronizing multiple remote units | GRANT | 1999-08-03 | 1994-06-02 | 22957727 | Good | Amati Communications Corp | Texas Instruments Inc |
| US6470055B1 | 0.351 | Spectrally efficient FQPSK FGMSK and FQAM for enhanced performance CDMA TDMA GSM OFDN and other systems | GRANT | 2002-10-22 | 1998-08-10 | 27378027 | Good | Quarterhill Inc | Quarterhill Inc |
| US6614852B1 | 0.350 | System for the estimation of the complex gain of a transmission channel | GRANT | 2003-09-02 | 1999-02-26 | 9542596 | Good | Thomson CSF SA | Thales SA |
| US6327314B1 | 0.350 | Method and apparatus for channel estimation for multicarrier systems | GRANT | 2001-12-04 | 1998-04-01 | 46203370 | Good | AT&T Corp | AT&T Corp |
| EP1146708A1 | 0.349 | Multicarrier transmission system using Multiple-Input Multiple-Output channels | GRANT | 2001-10-17 | 2000-04-12 | 8168444 | Good | ||
| US7020071B2 | 0.349 | Methods and apparatus for wireless communication using orthogonal frequency division multiplexing | GRANT | 2006-03-28 | 1998-11-25 | 22742070 | Good | Nokia of America Corp | Nokia of America Corp |
| US6317098B1 | 0.347 | Communication employing triply-polarized transmissions | GRANT | 2001-11-13 | 1999-08-23 | 23898056 | Good | Nokia of America Corp | Nokia of America Corp, WSOU Investments LLC |
| US6985471B1 | 0.343 | Data transmission method radio network subsystem and user equipment | GRANT | 2006-01-10 | 1998-07-22 | 8552223 | Good | Nokia Networks Oy | Nokia Solutions and Networks Oy |
| US7006430B2 | 0.342 | Receiver receiving method and recording medium which records program for receiving data signals | GRANT | 2006-02-28 | 2000-05-25 | 18659312 | Good | Denso Corp, National Institute of Information and Communications Technology | Denso Corp, National Institute of Information and Communications Technology |
| US6393073B1 | 0.339 | Method of frequency offset estimation and correction for adaptive antennas | GRANT | 2002-05-21 | 1999-06-28 | 23334244 | Good | Raytheon Co | Raytheon Co |
| US6275506B1 | 0.335 | Radio transmission method for digital multimedia data signals between subscriber stations in a local network | GRANT | 2001-08-14 | 1997-01-08 | 7816915 | Good | Thomson Licensing SAS | Deutsches Zentrum fuer Luft und Raumfahrt eV, Thomson Licensing SAS |
| USRE42219E1 | 0.328 | Multiple-input multiple-output (MIMO) spread spectrum system and method | GRANT | 2011-03-15 | 1998-11-24 | 22734159 | Good | Linex Technologies Inc | HARMONY LICENSING LLC |
| US7324495B1 | 0.325 | System and method for broadcasting timing information to remote units in a wireless multiple access network | GRANT | 2008-01-29 | 1999-06-23 | 38973957 | Good | Clearwire Corp | Clear Wireless LLC, Clearwire IP Holdings LLC, Clearwire Legacy LLC |
| US5581580A | 0.320 | Low complexity model based channel estimation algorithm for fading channels | GRANT | 1996-12-03 | 1993-05-20 | 22052728 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| EP1094615A2 | 0.315 | Method and transmitter unit for synchronisation in a CDMA system | GRANT | 2001-04-25 | 1999-10-20 | 8310306 | Good | Alcatel CIT SA, Alcatel SA | Alcatel CIT SA, Alcatel SA |
| EP0836303A2 | 0.312 | Reduction of peak to average power ratio in MCM systems | GRANT | 1998-04-15 | 1996-10-14 | 17494886 | Good | Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc | NTT Docomo Inc, Nippon Telegraph and Telephone Corp |
| US5005188A | 0.310 | Channel estimation and detection for digital communication systems | GRANT | 1991-04-02 | 1986-04-21 | 10596570 | Good | National Research Development Corp UK | BTG International Ltd |
| US6795392B1 | 0.310 | Clustered OFDM with channel estimation | GRANT | 2004-09-21 | 2000-03-27 | 24136469 | Good | AT&T Corp | AT&T Intellectual Property II LP |
| US6266348B1 | 0.310 | Splitterless multicarrier modem | GRANT | 2001-07-24 | 1997-10-10 | 27490224 | Good | Aware Inc | Intellectual Ventures II LLC |
| US6295326B1 | 0.308 | Kalman filter based equalization for digital multicarrier communications systems | GRANT | 2001-09-25 | 1999-03-08 | 22408156 | Good | Bandspeed Inc | Callahan Cellular LLC, Bandspeed Inc |
| US6307892B1 | 0.301 | Multicarrier communication system and method for peak power control | GRANT | 2001-10-23 | 1996-01-17 | 10787152 | Good | Motorola Inc | Google Technology Holdings LLC, Hewlett Packard Enterprise Development LP |
| US5313169A | 0.294 | Method of realigning the local oscillators of a receiver and device for implementing the method | GRANT | 1994-05-17 | 1990-11-30 | 9402779 | Good | Thomson CSF SA | Thales SA |
| US6292917B1 | 0.293 | Unequal error protection for digital broadcasting using channel classification | GRANT | 2001-09-18 | 1998-09-30 | 22590992 | Good | Agere Systems Guardian Corp | Avago Technologies International Sales Pte Ltd |
| US5751705A | 0.290 | Code division multiple access base station transmitter | GRANT | 1998-05-12 | 1995-06-30 | 16224838 | Good | NEC Corp | NEC Corp |
| EP1191709A1 | 0.280 | SPREAD SPECTRUM RECEIVING APPARATUS | GRANT | 2002-03-27 | 2000-04-26 | 18636246 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US5473601A | 0.269 | Frequency reuse technique for a high data rate satellite communication system | GRANT | 1995-12-05 | 1993-10-21 | 22498775 | Good | Hughes Aircraft Co | DirecTV Group Inc |
| US6304750B1 | 0.267 | Space-time diversity receiver for wireless systems | GRANT | 2001-10-16 | 1998-11-06 | 22691453 | Good | Nokia of America Corp | Provenance Asset Group LLC, Nokia USA Inc |
| US5949833A | 0.264 | Method and apparatus to implement antenna diversity for direct sequence spread spectrum receivers | GRANT | 1999-09-07 | 1995-11-13 | 24219310 | Good | Nokia of America Corp | Nokia of America Corp |
| US9893921B2 | 0.256 | Systems and methods for a multicarrier modulation system with a variable margin | GRANT | 2018-02-13 | 2000-04-18 | 22730513 | Good | TQ Delta LLC | TQ Delta LLC |
| US6333953B1 | 0.253 | System and methods for selecting an appropriate detection technique in a radiocommunication system | GRANT | 2001-12-25 | 1997-07-21 | 25407729 | Good | Ericsson Inc | Ericsson Inc |
| US6351499B1 | 0.251 | Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter | GRANT | 2002-02-26 | 1999-12-15 | 23843684 | Good | Iospan Wireless Inc | Intel Corp, Gigabit Wireless Inc |
| US6480558B1 | 0.236 | Synchronization and cell search methods and apparatus for wireless communications | GRANT | 2002-11-12 | 1999-03-17 | 23034091 | Good | Ericsson Inc | Ericsson Inc, Optis Wireless Technology LLC, Cluster LLC |
| US5696766A | 0.231 | Apparatus and method of synchronizing a transmitter in a subscriber terminal of a wireless telecommunications system | GRANT | 1997-12-09 | 1995-06-02 | 27267747 | Good | Alcatel Lucent Holdings Inc | Airspan Networks Inc, Airspan Networks Holdings Inc |
| US5648983A | 0.227 | CDMA rake receiver with sub-chip resolution | GRANT | 1997-07-15 | 1995-04-24 | 23695219 | Good | Nokia of America Corp | Avago Technologies International Sales Pte Ltd, AT&T Corp, Nokia of America Corp |
| US5592490A | 0.226 | Spectrally efficient high capacity wireless communication systems | GRANT | 1997-01-07 | 1991-12-12 | 23482624 | Good | Arraycomm LLC | Intel Corp |
| US5933768A | 0.224 | Receiver apparatus and associated method for receiving a receive signal transmitted upon a channel susceptible to interference | GRANT | 1999-08-03 | 1997-02-28 | 25199846 | Good | Telefonaktiebolaget LM Ericsson AB | Telefonaktiebolaget LM Ericsson AB |
| US7710928B2 | 0.223 | Channelization code determination by a user equipment | GRANT | 2010-05-04 | 2000-02-04 | 22660319 | Good | InterDigital Technology Corp | InterDigital Technology Corp |
| US5550810A | 0.214 | Direct sequence code division multiple access (DS-CDMA) communication system and a receiver for use in such a system | GRANT | 1996-08-27 | 1993-08-24 | 10740963 | Good | US Philips Corp | Pendragon Wireless LLC |
| US9264533B2 | 0.214 | Systems and methods for establishing a diagnostic transmission mode and communicating over the same | GRANT | 2016-02-16 | 2000-01-07 | 26870616 | Good | TQ Delta LLC | TQ Delta LLC |
| US5828658A | 0.208 | Spectrally efficient high capacity wireless communication systems with spatio-temporal processing | GRANT | 1998-10-27 | 1991-12-12 | 27499764 | Good | Arraycomm LLC | Intel Corp |
| US6018317A | 0.207 | Cochannel signal processing system | GRANT | 2000-01-25 | 1995-06-02 | 27578841 | Good | TRW Inc | Northrop Grumman Systems Corp |
| US9646444B2 | 0.203 | Electronic wireless hand held multimedia device | GRANT | 2017-05-09 | 2000-06-27 | 26908898 | Good | Mesa Digital LLC | Mesa Digital LLC |
| US6804313B2 | 0.203 | Approach for processing data received from a communications channel | GRANT | 2004-10-12 | 1999-12-30 | 26869522 | Good | Bandspeed Inc | Callahan Cellular LLC, Bandspeed Inc |
| US5442625A | 0.202 | Code division multiple access system providing variable data rate access to a user | GRANT | 1995-08-15 | 1994-05-13 | 22914901 | Good | AT&T IPM Corp | AT&T Corp |
| US5088113A | 0.198 | Diversity coded modulation | GRANT | 1992-02-11 | 1990-01-02 | 23826508 | Good | AT&T Bell Laboratories Inc | Nokia Bell Labs |
| US7362734B1 | 0.196 | Time-slot partitioning in a TDMA system | GRANT | 2008-04-22 | 1999-06-09 | 8241439 | Good | Nokia of America Corp | Provenance Asset Group LLC, Nokia USA Inc |
| US6400780B1 | 0.192 | Space-time diversity for wireless systems | GRANT | 2002-06-04 | 1998-11-06 | 22690867 | Good | Nokia of America Corp | Nokia of America Corp, WSOU Investments LLC |
| US6961365B2 | 0.183 | Method for signal processing in user equipment of CDMA mobile communication system | GRANT | 2005-11-01 | 2000-04-11 | 4577984 | Good | China Academy of Telecommunications Technology CATT | Datang Mobile Communications Equipment Co Ltd |
| US5805575A | 0.183 | Apparatus and method for providing a beacon signal in a wireless communication system | GRANT | 1998-09-08 | 1996-08-19 | 24799832 | Good | Motorola Inc | Motorola Solutions Inc |
| US7088785B2 | 0.179 | Block level space time transmit diversity in wireless communications | GRANT | 2006-08-08 | 1998-12-31 | 34315948 | Good | Texas Instruments Inc | Intel Corp |
| EP0756387A2 | 0.178 | Serial acquisition system with adaptive threshold and optimal decision for spread spectrum systems | GRANT | 1997-01-29 | 1995-07-25 | 24014183 | Good | Nokia Mobile Phones Ltd | Nokia Mobile Phones Ltd, Nokia Oyj |
| US5507035A | 0.147 | Diversity transmission strategy in mobile/indoor cellula radio communications | GRANT | 1996-04-09 | 1993-04-30 | 22002585 | Good | International Business Machines Corp | Netgear Inc |
| WO1996003819A1 | 0.111 | SPREAD SPECTRUM INTERFERENCE CANCELER SYSTEM AND METHOD | APPLICATION | 1996-02-08 | 1994-07-26 | 23069142 | Good | ||
| US7039436B1 | 0.064 | Mobile communication terminal | GRANT | 2006-05-02 | 2000-01-12 | 11735568 | Good | Mitsubishi Electric Corp | Mitsubishi Electric Corp |
| US5228054A | 0.061 | Power-of-two length pseudo-noise sequence generator with fast offset adjustment | GRANT | 1993-07-13 | 1992-04-03 | 25339060 | Good | Qualcomm Inc | Qualcomm Inc |
| KR100405097B1 | NR | No title | GRANT | 2003-11-10 | 1999-12-06 | 18383637 | Good | ||
| KR100383466B1 | NR | No title | GRANT | 2003-05-12 | 1999-09-13 | 23562562 | Good | ||
| JPH11239115A | NR | DEVICE AND METHOD FOR RECEIVING SIGNAL AND PROVIDING MEDIUM | GRANT | 1999-08-31 | 1998-02-20 | 12521708 | Good | ||
| JPH11163822A | NR | OFDM RECEIVER | GRANT | 1999-06-18 | 1997-11-26 | 18171163 | Good | ||
| JP2002535875A | NR | No title | APPLICATION | 2002-10-22 | 1999-01-13 | 22861412 | Good | ||
| GB2340000A | NR | Storing digital video braodcast signals | GRANT | 2000-02-09 | 1998-07-02 | 28043426 | Good | LSI Logic Corp | LSI Corp |
| GB2337419A | NR | Direct sequence CDMA multi-user interference canceller | GRANT | 1999-11-17 | 1998-04-07 | 14127886 | Good | NEC Corp | NEC Corp |
| GB2320868A | NR | Measuring coarse frequency offset of a multi-carrier signal | GRANT | 1998-07-01 | 1996-12-03 | 10803849 | Good | Ensigma Ltd | Ensigma Ltd |
| FR2792138A1 | NR | No title | GRANT | 2000-10-13 | 1999-04-06 | 9544154 | Good | Telediffusion de France ets Public de Diffusion | Telediffusion de France ets Public de Diffusion |
| FR2743967A1 | NR | No title | GRANT | 1997-07-25 | 1996-01-18 | 9488392 | Good | France Telecom SA | Orange SA |
| FR2738095A1 | NR | No title | GRANT | 1997-02-28 | 1995-08-21 | 9482073 | Good | France Telecom SA | Orange SA |
| DE4219677A1 | NR | Antenna diversity digital transmission in mobile radio system - using single antenna receiver for producing two channel estimates between which symbol sub-blocks are switched rhythmically | GRANT | 1993-02-04 | 1991-07-31 | 4230320 | Good | Ascom Tech AG | Ascom Tech AG |
| CA2298360A1 | NR | ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING BASED SPREAD SPECTRUM MULTIPLE ACCESS | GRANT | 2000-09-11 | 1999-03-11 | 23018916 | Good | Nokia of America Corp | Qualcomm Inc |
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| JPH10172479A | NR | IMAGE FORMING DEVICE AND DRIVING METHOD THEREOF | GRANT | 1998-06-26 | 1996-10-07 | 26547163 | Fair | ||
| JPH10164162A | NR | VITERBI DECODING CIRCUIT | GRANT | 1998-06-19 | 1996-12-04 | 18158675 | Fair | ||
| JPH08265184A | NR | MULTICARRIER MODULATION SYSTEM RECEIVER | GRANT | 1996-10-11 | 1995-03-22 | 13214316 | Fair | ||
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| JPH04204993A | NR | DRIVING CIRCUIT FOR DISPLAY DEVICE | GRANT | 1992-07-27 | 1990-11-30 | 18334334 | Fair | ||
| JPH04107293A | NR | METHOD FOR COLORING METALLIC MATERIAL | GRANT | 1992-04-08 | 1990-08-28 | 16832022 | Fair | ||
| JPH0355738A | NR | ELECTRON EMITTING ELEMENT AND IMAGE DISPLAY DEVICE AND DRAWING DEVICE USING THE SAME | GRANT | 1991-03-11 | 1989-03-30 | 26416913 | Fair | ||
| JPH0348889A | NR | SCANNING CIRCUIT FOR DISPLAY PANEL DEVICE | GRANT | 1991-03-01 | 1989-07-17 | 16150668 | Fair | ||
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 |  |
Validity Report Full Report
US10291454B2 — Pilot pattern design for a STTD scheme in an OFDM system Priority Date: 2000-07-05, Publication Date: 2019-05-14, Current Assignee: Redwood Technologies LLCReport Generated: 2022-01-26