ES2141236T3 - Ocultacion de error de transmision. - Google Patents

Ocultacion de error de transmision.

Info

Publication number
ES2141236T3
ES2141236T3 ES94919041T ES94919041T ES2141236T3 ES 2141236 T3 ES2141236 T3 ES 2141236T3 ES 94919041 T ES94919041 T ES 94919041T ES 94919041 T ES94919041 T ES 94919041T ES 2141236 T3 ES2141236 T3 ES 2141236T3
Authority
ES
Spain
Prior art keywords
frame
detected
transmission errors
internal state
state variables
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES94919041T
Other languages
English (en)
Inventor
Karl Torbjorn Wigren
Rolf Anders Bergstrom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of ES2141236T3 publication Critical patent/ES2141236T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes

Abstract

UN RECEPTOR EN UN SISTEMA DE COMUNICACION DE RADIO BASADA EN MARCOS INCLUYE UN DESCODIFICADOR DE VOZ DEL TIPO FUENTE-FILTRO QUE SE CONTROLA POR UNOS MEDIOS (20, 22, 24) QUE INCLUYEN VARIABLES DE ESTADO INTERNAS ACTUALIZADAS SOBRE UNA BASE DE MARCO POR MARCO PARA MODIFICAR LOS PARAMETROS DE FILTRO RECIBIDOS QUE REPRESENTAN LOS SONIDOS DE FONDO TRANSMITIDOS SOBRE UN CANAL DE COMUNICACION. EL RECEPTOR INCLUYE MEDIOS (12, 13, 14) PARA DETECTAR LOS MARCOS QUE CONTIENEN ERRORES DE TRANSMISION, MEDIOS (16) PARA DECIDIR CUANDO UN MARCO EN EL CUAL SE HAN DETECTADO ERRORES DE TRANSMISION ES ACEPTABLE, Y MEDIOS (18) PARA CANCELAR LOS ERRORES DE TRANSMISION DETECTADOS RESTRINGIENDO LA ACTUALIZACION DE AL MENOS UNA DE LAS VARIABLES DE ESTADO INTERNAS SI EL MARCO DETECTADO ES DECLARADO COMO NO ACEPTABLE POR LOS MEDIOS DE DECISION.
ES94919041T 1993-06-11 1994-06-02 Ocultacion de error de transmision. Expired - Lifetime ES2141236T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9302025A SE501340C2 (sv) 1993-06-11 1993-06-11 Döljande av transmissionsfel i en talavkodare

Publications (1)

Publication Number Publication Date
ES2141236T3 true ES2141236T3 (es) 2000-03-16

Family

ID=20390257

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94919041T Expired - Lifetime ES2141236T3 (es) 1993-06-11 1994-06-02 Ocultacion de error de transmision.

Country Status (20)

Country Link
US (1) US5598506A (es)
EP (1) EP0655160B1 (es)
JP (1) JPH08500235A (es)
KR (1) KR100220381B1 (es)
CN (1) CN1064768C (es)
AU (1) AU670699B2 (es)
CA (1) CA2140365A1 (es)
DE (1) DE69421500T2 (es)
DK (1) DK0655160T3 (es)
ES (1) ES2141236T3 (es)
FI (1) FI950592A (es)
GR (1) GR3031751T3 (es)
HK (1) HK1013880A1 (es)
MX (1) MX9404251A (es)
NZ (1) NZ267735A (es)
RU (1) RU2120668C1 (es)
SE (1) SE501340C2 (es)
SG (1) SG46982A1 (es)
TW (1) TW268172B (es)
WO (1) WO1994029851A1 (es)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5918205A (en) * 1996-01-30 1999-06-29 Lsi Logic Corporation Audio decoder employing error concealment technique
US5920833A (en) * 1996-01-30 1999-07-06 Lsi Logic Corporation Audio decoder employing method and apparatus for soft-muting a compressed audio signal
JPH1091194A (ja) * 1996-09-18 1998-04-10 Sony Corp 音声復号化方法及び装置
US7788092B2 (en) * 1996-09-25 2010-08-31 Qualcomm Incorporated Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters
EP0928521A1 (en) * 1996-09-25 1999-07-14 Qualcomm Incorporated Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters
FR2758676A1 (fr) * 1997-01-21 1998-07-24 Philips Electronics Nv Methode de reduction des clics dans un systeme de transmission de donnees
WO1998038764A1 (de) * 1997-02-27 1998-09-03 Siemens Aktiengesellschaft Verfahren und anordnung zur rahmenfehlerdetektion zwecks fehlerverdeckung insbesondere bei gsm übertragungen
DE19716147A1 (de) * 1997-04-17 1998-10-22 Alsthom Cge Alcatel Verfahren und Vorrichtung zur Fehlerverdeckung in digitalen Übertragungssystemen
CA2276202C (en) * 1997-04-23 2000-12-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Methods for concealing errors in an audio data stream
US6289053B1 (en) 1997-07-31 2001-09-11 Lsi Logic Corporation Architecture for decoding MPEG compliant video bitstreams meeting 2-frame and letterboxing requirements
US6122316A (en) * 1997-07-31 2000-09-19 Lsi Logic Corporation MPEG decoding system meeting 2-frame store and letterboxing requirements
US6266091B1 (en) 1997-07-31 2001-07-24 Lsi Logic Corporation System and method for low delay mode operation video decoding
US6310918B1 (en) 1997-07-31 2001-10-30 Lsi Logic Corporation System and method for motion vector extraction and computation meeting 2-frame store and letterboxing requirements
US6236681B1 (en) 1997-07-31 2001-05-22 Lsi Logic Corporation Method for decoding MPEG compliant video bitstreams meeting 2-frame and letterboxing requirements
US6101221A (en) * 1997-07-31 2000-08-08 Lsi Logic Corporation Video bitstream symbol extractor for use in decoding MPEG compliant video bitstreams meeting 2-frame and letterboxing requirements
FI104769B (fi) 1997-12-01 2000-03-31 Nokia Networks Oy Menetelmä ja laitteisto loogisen kanavan tunnistamiseksi
GB2337904B (en) 1998-05-29 2003-03-12 Nec Technologies Frame erasure for digital data transmision systems
US6810377B1 (en) 1998-06-19 2004-10-26 Comsat Corporation Lost frame recovery techniques for parametric, LPC-based speech coding systems
US6351495B1 (en) * 1998-08-28 2002-02-26 Lucent Technologies Inc. Apparatus and method for conveying TTY signals over wireless telecommunication systems
GB2348087B (en) * 1999-03-13 2003-08-13 Nec Technologies Detection of unreliable frames in digital data transmission systems
WO2000063881A1 (en) * 1999-04-19 2000-10-26 At & T Corp. Method and apparatus for performing packet loss or frame erasure concealment
US7117156B1 (en) 1999-04-19 2006-10-03 At&T Corp. Method and apparatus for performing packet loss or frame erasure concealment
US7047190B1 (en) 1999-04-19 2006-05-16 At&Tcorp. Method and apparatus for performing packet loss or frame erasure concealment
US6757654B1 (en) * 2000-05-11 2004-06-29 Telefonaktiebolaget Lm Ericsson Forward error correction in speech coding
WO2001093488A1 (en) * 2000-05-29 2001-12-06 Telefonaktiebolaget Lm Ericsson (Publ) Error detection and error concealment for encoded speech data
EP1199709A1 (en) 2000-10-20 2002-04-24 Telefonaktiebolaget Lm Ericsson Error Concealment in relation to decoding of encoded acoustic signals
US7031926B2 (en) 2000-10-23 2006-04-18 Nokia Corporation Spectral parameter substitution for the frame error concealment in a speech decoder
US20020181407A1 (en) * 2001-03-28 2002-12-05 Anders Khullar Link quality control by using time dispersion information
US20030163304A1 (en) * 2002-02-28 2003-08-28 Fisseha Mekuria Error concealment for voice transmission system
JP5142727B2 (ja) * 2005-12-27 2013-02-13 パナソニック株式会社 音声復号装置および音声復号方法
US20070174054A1 (en) * 2006-01-25 2007-07-26 Mediatek Inc. Communication apparatus with signal mode and voice mode
EP2063418A4 (en) 2006-09-15 2010-12-15 Panasonic Corp AUDIO CODING DEVICE AND AUDIO CODING METHOD
US7877253B2 (en) 2006-10-06 2011-01-25 Qualcomm Incorporated Systems, methods, and apparatus for frame erasure recovery
KR100862662B1 (ko) 2006-11-28 2008-10-10 삼성전자주식회사 프레임 오류 은닉 방법 및 장치, 이를 이용한 오디오 신호복호화 방법 및 장치
US8165224B2 (en) * 2007-03-22 2012-04-24 Research In Motion Limited Device and method for improved lost frame concealment
KR101570550B1 (ko) * 2008-03-14 2015-11-19 파나소닉 인텔렉츄얼 프로퍼티 코포레이션 오브 아메리카 부호화 장치, 복호 장치 및 이러한 방법
EP3239978B1 (en) 2011-02-14 2018-12-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoding and decoding of pulse positions of tracks of an audio signal
BR112013020592B1 (pt) 2011-02-14 2021-06-22 Fraunhofer-Gellschaft Zur Fôrderung Der Angewandten Forschung E. V. Codec de áudio utilizando síntese de ruído durante fases inativas
EP2550653B1 (en) 2011-02-14 2014-04-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Information signal representation using lapped transform
CN103503061B (zh) 2011-02-14 2016-02-17 弗劳恩霍夫应用研究促进协会 在一频谱域中用以处理已解码音频信号的装置及方法
TWI484479B (zh) * 2011-02-14 2015-05-11 Fraunhofer Ges Forschung 用於低延遲聯合語音及音訊編碼中之錯誤隱藏之裝置和方法
MX2013009304A (es) 2011-02-14 2013-10-03 Fraunhofer Ges Forschung Aparato y metodo para codificar una porcion de una señal de audio utilizando deteccion de un transiente y resultado de calidad.
JP6360165B2 (ja) 2013-06-21 2018-07-18 フラウンホーファーゲゼルシャフト ツール フォルデルング デル アンゲヴァンテン フォルシユング エー．フアー． 快適ノイズの適応スペクトル形状を生成するための装置及び方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153877A (en) * 1978-02-13 1979-05-08 Masco Corporation Of Indiana Mobile CB transceiver
US4357491A (en) * 1980-09-16 1982-11-02 Northern Telecom Limited Method of and apparatus for detecting speech in a voice channel signal
US4660196A (en) * 1983-08-01 1987-04-21 Scientific Atlanta, Inc. Digital audio satellite transmission system
US4656633A (en) * 1985-03-15 1987-04-07 Dolby Laboratories Licensing Corporation Error concealment system
FR2608867B1 (fr) * 1986-12-19 1988-12-30 Thomson Csf Procede et dispositif de transmissions numeriques de signaux vocaux par voie radio
US4802171A (en) * 1987-06-04 1989-01-31 Motorola, Inc. Method for error correction in digitally encoded speech
JPH01177227A (ja) * 1988-01-05 1989-07-13 Toshiba Corp 音声コーデック
JPH02288520A (ja) * 1989-04-28 1990-11-28 Hitachi Ltd 背景音再生機能付き音声符号復号方式
GB2239971B (en) * 1989-12-06 1993-09-29 Ca Nat Research Council System for separating speech from background noise
US5097507A (en) * 1989-12-22 1992-03-17 General Electric Company Fading bit error protection for digital cellular multi-pulse speech coder
JP2786001B2 (ja) * 1990-07-09 1998-08-13 森永乳業株式会社 チロシナーゼ活性阻害剤
US5271011A (en) * 1992-03-16 1993-12-14 Scientific-Atlanta, Inc. Digital audio data muting system and method
SE470372B (sv) * 1992-06-23 1994-01-31 Ericsson Telefon Ab L M Metod jämte anordning att uppskatta kvaliten vid ramfelsdetektering i mottagaren hos ett radiokommunikationssystem
US5459814A (en) * 1993-03-26 1995-10-17 Hughes Aircraft Company Voice activity detector for speech signals in variable background noise
US5485522A (en) * 1993-09-29 1996-01-16 Ericsson Ge Mobile Communications, Inc. System for adaptively reducing noise in speech signals
US5502713A (en) * 1993-12-07 1996-03-26 Telefonaktiebolaget Lm Ericsson Soft error concealment in a TDMA radio system

Also Published As

Publication number Publication date
GR3031751T3 (en) 2000-02-29
DE69421500T2 (de) 2000-07-13
SE9302025D0 (sv) 1993-06-11
KR950703192A (ko) 1995-08-23
TW268172B (es) 1996-01-11
CA2140365A1 (en) 1994-12-22
DK0655160T3 (da) 2000-01-03
SE501340C2 (sv) 1995-01-23
RU2120668C1 (ru) 1998-10-20
DE69421500D1 (de) 1999-12-09
CN1064768C (zh) 2001-04-18
HK1013880A1 (en) 1999-09-10
WO1994029851A1 (en) 1994-12-22
CN1110486A (zh) 1995-10-18
FI950592A0 (fi) 1995-02-10
SE9302025L (sv) 1994-12-12
EP0655160A1 (en) 1995-05-31
SG46982A1 (en) 1998-03-20
MX9404251A (es) 1995-01-31
FI950592A (fi) 1995-02-10
AU670699B2 (en) 1996-07-25
AU7011694A (en) 1995-01-03
NZ267735A (en) 1996-06-25
EP0655160B1 (en) 1999-11-03
US5598506A (en) 1997-01-28
JPH08500235A (ja) 1996-01-09
KR100220381B1 (ko) 1999-09-15

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