Validity Report
Basic 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
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Patent Id
Score
Title
Patent Type
Publication Date
Priority Date
Search Efficiency
Original Assignee
Current Assignee
US6826527B1●●●●●Concealment of frame erasures and methodGRANT2004-11-301999-11-23GreatTexas Instruments IncTexas Instruments Inc
EP1235203A2●●●●●Method for concealing erased speech frames and decoder thereforGRANT2002-08-282001-02-27GreatTexas Instruments IncTexas Instruments Inc
EP1103953A2●●●●●Method for concealing erased speech framesGRANT2001-05-301999-11-23GreatTexas Instruments IncTexas Instruments Inc
EP1088205A1●●●●●IMPROVED LOST FRAME RECOVERY TECHNIQUES FOR PARAMETRIC  LPC-BASED SPEECH CODING SYSTEMSGRANT2001-04-041998-06-19GreatComsat CorpComsat Corp
US6775649B1●●●●●Concealment of frame erasures for speech transmission and storage system and methodGRANT2004-08-101999-09-01GreatTexas Instruments IncTexas Instruments Inc
EP1276832A2●●●●●FRAME ERASURE COMPENSATION METHOD IN A VARIABLE RATE SPEECH CODERGRANT2003-01-222000-04-24GreatQualcomm IncQualcomm Inc
EP1316087A1●●●●●TRANSMISSION ERROR CONCEALMENT IN AN AUDIO SIGNALGRANT2003-06-042000-09-05GreatFrance Telecom SAOrange SA
US6324503B1●●●●●Method and apparatus for providing feedback from decoder to encoder to improve performance in a predictive speech coder under frame erasure conditionsGRANT2001-11-271999-07-19GreatQualcomm IncQualcomm Inc
EP1301891A2●●●●●A SPEECH COMMUNICATION SYSTEM AND METHOD FOR HANDLING LOST FRAMESGRANT2003-04-162000-07-14GreatLakestar Semi IncMindspeed Technologies LLC
US6952668B1●●●●●Method and apparatus for performing packet loss or frame erasure concealmentGRANT2005-10-041999-04-19GreatAT&T CorpAT&T Intellectual Property II LP
WO2000063885A1●●●●●METHOD AND APPARATUS FOR PERFORMING PACKET LOSS OR FRAME ERASURE CONCEALMENTAPPLICATION2000-10-261999-04-19Great
US6871176B2●●●●●Phase excited linear prediction encoderGRANT2005-03-222001-07-26GreatNXP USA IncApple Inc
US6973425B1●●●●●Method and apparatus for performing packet loss or Frame Erasure ConcealmentGRANT2005-12-061999-04-19GreatAT&T CorpAT&T Corp
EP0747883A2●●●●●Voiced/unvoiced classification of speech for use in speech decoding during frame erasuresGRANT1996-12-111995-06-07GreatAT&T Corp, AT&T IPM CorpAT&T Corp
US7117156B1●●●●●Method and apparatus for performing packet loss or frame erasure concealmentGRANT2006-10-031999-04-19GreatAT&T CorpAT&T Intellectual Property II LP
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Predictive Analytics

Composite Research Score (1-10)
6
  MODERATE
Art VolumeMEDIUM
Tech ComplexityINTRICATE
Priority DateMID
Tech DiversityNARROW
Expert Services Estimate$3,150 — $3,600
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Preview CPC Technology Profile

Possible Classes
133
Recommended Classes
34
Government Assigned Classes
3
CPC
Title
Score
G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction  e.g. in vocoders| Coding or decoding of speech or audio signals  using source filter models or psychoacoustic analysis | in musical instruments | (ref: G10H)●●●●●
G10L19/005Correction of errors induced by the transmission channel  if related to the coding algorithm●●●●●
G10L19/08Determination or coding of the excitation function| Determination or coding of the long-term prediction parameters●●●●●
G10L19/24Variable rate codecs  e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding●●●●●
G10L19/083the excitation function being an excitation gain | (ref: G10L25/90)|  takes precedence●●●●●
G10L19/26Pre-filtering or post-filtering●●●●●
G10L19/20using sound class specific coding  hybrid encoders or object based coding●●●●●
G10L19/173Transcoding  i.e. converting between two coded representations avoiding cascaded coding-decoding●●●●●
G10L25/93Discriminating between voiced and unvoiced parts of speech signals | (ref: G10L25/90)|  takes precedence●●●●●
G10L25/78Detection of presence or absence of voice signals | switching of direction of transmission by voice frequency in two-way loud-speaking telephone systems | (ref: H04M9/10)●●●●●
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