EP0938781A2 - Systeme de transmission dote d'un moyen de reconstruction amelioree des pieces manquantes - Google Patents

Systeme de transmission dote d'un moyen de reconstruction amelioree des pieces manquantes

Info

Publication number
EP0938781A2
EP0938781A2 EP98936615A EP98936615A EP0938781A2 EP 0938781 A2 EP0938781 A2 EP 0938781A2 EP 98936615 A EP98936615 A EP 98936615A EP 98936615 A EP98936615 A EP 98936615A EP 0938781 A2 EP0938781 A2 EP 0938781A2
Authority
EP
European Patent Office
Prior art keywords
signal
quality
reconstruction
encoded signal
transmission system
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.)
Withdrawn
Application number
EP98936615A
Other languages
German (de)
English (en)
Inventor
Juha Rapeli
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.)
Cellon France SAS
Original Assignee
Cellon France SAS
Koninklijke Philips Electronics NV
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 Cellon France SAS, Koninklijke Philips Electronics NV filed Critical Cellon France SAS
Priority to EP98936615A priority Critical patent/EP0938781A2/fr
Publication of EP0938781A2 publication Critical patent/EP0938781A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • 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
    • 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
    • H04L1/0045—Arrangements at the receiver end
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • 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
    • G10L19/012—Comfort noise or silence coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

Dans un système de transmission, un signal à transmettre par un premier noeud (2) est appliqué à un codeur (8) et est transmis par un émetteur (10) à un deuxième noeud (6). Dans le deuxième noeud (6), le signal provenant du support de transmission (4) est reçu par le récepteur (12) et envoyé à un sélecteur (18), directement et par l'intermédiaire d'un interpolateur (14). Le retardement du décodage du signal en cas d'erreurs de transmission entraînant la perte de séquences, permet de compléter lesdites séquences par interpolation.
EP98936615A 1997-09-12 1998-08-17 Systeme de transmission dote d'un moyen de reconstruction amelioree des pieces manquantes Withdrawn EP0938781A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98936615A EP0938781A2 (fr) 1997-09-12 1998-08-17 Systeme de transmission dote d'un moyen de reconstruction amelioree des pieces manquantes

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP97402129 1997-09-12
EP97402129 1997-09-12
EP98936615A EP0938781A2 (fr) 1997-09-12 1998-08-17 Systeme de transmission dote d'un moyen de reconstruction amelioree des pieces manquantes
PCT/IB1998/001262 WO1999014866A2 (fr) 1997-09-12 1998-08-17 Systeme de transmission dote d'un moyen de reconstruction amelioree des pieces manquantes

Publications (1)

Publication Number Publication Date
EP0938781A2 true EP0938781A2 (fr) 1999-09-01

Family

ID=8229846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98936615A Withdrawn EP0938781A2 (fr) 1997-09-12 1998-08-17 Systeme de transmission dote d'un moyen de reconstruction amelioree des pieces manquantes

Country Status (6)

Country Link
EP (1) EP0938781A2 (fr)
JP (1) JP2001508268A (fr)
KR (1) KR20000068950A (fr)
CN (1) CN1243621A (fr)
TW (1) TW424365B (fr)
WO (1) WO1999014866A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3881157B2 (ja) 2000-05-23 2007-02-14 株式会社エヌ・ティ・ティ・ドコモ 音声処理方法及び音声処理装置
CA2388439A1 (fr) * 2002-05-31 2003-11-30 Voiceage Corporation Methode et dispositif de dissimulation d'effacement de cadres dans des codecs de la parole a prevision lineaire
CA2602860A1 (fr) * 2005-04-04 2006-10-12 That Corporation Systeme de controle et d'estimation de la qualite de signal
JP4730183B2 (ja) 2006-04-17 2011-07-20 株式会社日立製作所 映像表示装置
CN101894565B (zh) * 2009-05-19 2013-03-20 华为技术有限公司 语音信号修复方法和装置
JP5703048B2 (ja) * 2011-02-04 2015-04-15 キヤノン株式会社 通信装置、通信装置の制御方法、およびプログラム
CN102568488B (zh) * 2012-02-23 2013-06-12 安徽创世科技有限公司 一种抑制网络丢包影响的语音数据后处理方法
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
JP6721977B2 (ja) * 2015-12-15 2020-07-15 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 音声音響信号符号化装置、音声音響信号復号装置、音声音響信号符号化方法、及び、音声音響信号復号方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3374109D1 (en) * 1983-10-28 1987-11-19 Ibm Method of recovering lost information in a digital speech transmission system, and transmission system using said method
US5036388A (en) * 1988-11-10 1991-07-30 U.S. Philips Corporation Apparatus including an improved device for recovering the d.c. component
EP0392126B1 (fr) * 1989-04-11 1994-07-20 International Business Machines Corporation Procédé pour la détermination rapide de la fréquence fondamentale pour des codeurs de parole avec prédiction à long terme
FR2654566A1 (fr) * 1989-11-14 1991-05-17 Philips Laboratoires Electroni Dispositif de decodage ameliore de signaux de television de type hd-mac.
US5550847A (en) * 1994-10-11 1996-08-27 Motorola, Inc. Device and method of signal loss recovery for realtime and/or interactive communications
CZ295867B6 (cs) * 1994-10-31 2005-11-16 Koninklijke Philips Electronics N.V. Digitální přenosový systém, přijímač, digitální záznamový systém, způsob vysílání a přijímání digitálních signálů, způsob záznamu a čtení digitálních symbolů, a způsob čtení kódovaných digitálních symbolů
US5708756A (en) * 1995-02-24 1998-01-13 Industrial Technology Research Institute Low delay, middle bit rate speech coder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9914866A2 *

Also Published As

Publication number Publication date
WO1999014866A2 (fr) 1999-03-25
JP2001508268A (ja) 2001-06-19
CN1243621A (zh) 2000-02-02
WO1999014866A3 (fr) 1999-06-10
TW424365B (en) 2001-03-01
KR20000068950A (ko) 2000-11-25

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