EP0609300B1 - Procede de transmission ou de memorisation d'un signal audio code numerise compose d'une sequence de blocs d'informations, par des canaux brouilles - Google Patents

Procede de transmission ou de memorisation d'un signal audio code numerise compose d'une sequence de blocs d'informations, par des canaux brouilles Download PDF

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Publication number
EP0609300B1
EP0609300B1 EP92921545A EP92921545A EP0609300B1 EP 0609300 B1 EP0609300 B1 EP 0609300B1 EP 92921545 A EP92921545 A EP 92921545A EP 92921545 A EP92921545 A EP 92921545A EP 0609300 B1 EP0609300 B1 EP 0609300B1
Authority
EP
European Patent Office
Prior art keywords
information
units
encoded
audio signal
regard
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
EP92921545A
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German (de)
English (en)
Other versions
EP0609300A1 (fr
Inventor
Detlef Wiese
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.)
Institut fuer Rundfunktechnik GmbH
Original Assignee
Institut fuer Rundfunktechnik GmbH
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Filing date
Publication date
Application filed by Institut fuer Rundfunktechnik GmbH filed Critical Institut fuer Rundfunktechnik GmbH
Publication of EP0609300A1 publication Critical patent/EP0609300A1/fr
Application granted granted Critical
Publication of EP0609300B1 publication Critical patent/EP0609300B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/95—Arrangements characterised by the broadcast information itself characterised by a specific format, e.g. an encoded audio stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
    • H04H60/07—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • Such a method is known from the international publication WO, A, 92 179 48 published on October 15, 1992.
  • bit-saving source codes are usually used before the channel coding, which are based on a reduction in redundancy and irrelevance.
  • additional and control information such as, for example, scale factors, scale factor selection information and bit allocation information
  • additional and control information are transmitted, ie successive information units of different content must be transmitted, a sequence of such information units being combined to form an information block (also called an “information frame”) is.
  • Bit error individual Binary digits within an information block produce a different subjective interference effect on the listener. For example, the disruption of a bit assignment in the broadcast channel can briefly lead to a complete failure on the playback side and thus to a muting of the audio signal of a certain duration.
  • This control information must therefore be protected considerably more than the encoded samples.
  • the listener can only perceive a bit error of a low-value binary position of the encoded sample with difficulty and sometimes even not at all.
  • the object of the invention is to provide, in a method of the type mentioned at the outset, a channel coding which is optimized with regard to minimal subjective interference, minimum data rate and maximum error protection.
  • the invention is based on the consideration of using the different meaning of the information units within each information block for a continuously graduated, variable error protection in such a way that certain interference patterns result in the case of transmission disturbances, which can be well concealed by suitable techniques. By permitting these error patterns, the data rate for transmission can be reduced since less data than in the prior art are required for adequate error protection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Stereo-Broadcasting Methods (AREA)

Claims (4)

  1. Procédé de transmission ou de mémorisation d'un signal codé numérisé composé d'une séquence de blocs numérisés d'informations, par des canaux brouillés, dans lequel les blocs d'informations individuels consistent en des unités d'informations de contenus d'informations différents, telles que des informations de commande, des informations de facteur d'échelle ainsi que des informations sur des valeurs échantillonnées codées, dérivées d'un codage de sources à bande partielle et/ou à transformation, les unités pour les informations se rapportant à des valeurs échantillonnées codées étant associées à une structure spectrale déterminée, et dans lequel le signal audio codé est soumis à un codage de canal proportionné à la protection désirée contre les erreurs, de sorte, qu'en cas de reconnaissance d'erreur, une correction d'erreur est effectuée et, pour des erreurs non corrigibles, un masquage d'erreur est réalisé, caractérisé en ce que, pour le codage de canal des unités d'informations qui concernent les valeurs échantillonnées codées, on prévoit une protection contre les erreurs de bits, variable, fonction de l'attribution variable des unités d'informations individuelles à une structure spectrale déterminée et, en outre, des unités pour des informations se rapportant à des valeurs échantillonnées codées de parties de signal audio à basses fréquences ont une protection contre les erreurs de bits plus élevée que des unités pour des informations se rapportant à des valeurs échantillonnées codées pour des parties de signaux audios à hautes fréquences, et en ce que, pour les unités d'information individuelles, on détermine la protection contre les erreurs variable, en outre, en fonction d'une durée et d'une quantité admissibles selon des critères subjectifs d'un masquage d'erreurs utilisé.
  2. Procédé selon la revendication 1, caractérisé en ce que, dans les unités individuelles, on prévoit, pour le codage de canal, une protection contre les erreurs de bits qui est étagée de façon continue pour les informations qui concernent les valeurs échantillonnées codées.
  3. Procédé selon la revendication 2, caractérisé en ce que la protection contre les erreurs de bits étagée de façon continue, dans les unités d'informations individuelles, aux limites de chaque unité, est adaptée à la protection contre les erreurs de bits de chaque unité d'informations voisine.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que pour la séquence des unités d'informations se rapportant aux valeurs échantillonnées codées, au moins dans une unité, se trouvent des informations se rapportant à une protection supplémentaire contre les erreurs afin d'élargir la reconnaissance d'erreurs.
EP92921545A 1991-10-24 1992-10-20 Procede de transmission ou de memorisation d'un signal audio code numerise compose d'une sequence de blocs d'informations, par des canaux brouilles Expired - Lifetime EP0609300B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4135070A DE4135070C1 (fr) 1991-10-24 1991-10-24
DE4135070 1991-10-24
PCT/EP1992/002401 WO1993008656A1 (fr) 1991-10-24 1992-10-20 Procede de transmission ou de memorisation d'un signal audio code numerise compose d'une sequence de blocs d'informations, par des canaux brouilles

Publications (2)

Publication Number Publication Date
EP0609300A1 EP0609300A1 (fr) 1994-08-10
EP0609300B1 true EP0609300B1 (fr) 1996-09-11

Family

ID=6443299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92921545A Expired - Lifetime EP0609300B1 (fr) 1991-10-24 1992-10-20 Procede de transmission ou de memorisation d'un signal audio code numerise compose d'une sequence de blocs d'informations, par des canaux brouilles

Country Status (9)

Country Link
US (1) US5440584A (fr)
EP (1) EP0609300B1 (fr)
AT (1) ATE142828T1 (fr)
AU (1) AU2769192A (fr)
CA (1) CA2122011C (fr)
DE (2) DE4135070C1 (fr)
DK (1) DK0609300T3 (fr)
ES (1) ES2090697T3 (fr)
WO (1) WO1993008656A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE4202140A1 (de) * 1992-01-27 1993-07-29 Thomson Brandt Gmbh Verfahren zur uebertragung digitaler audio-signale
US5642437A (en) * 1992-02-22 1997-06-24 Texas Instruments Incorporated System decoder circuit with temporary bit storage and method of operation
US5729556A (en) * 1993-02-22 1998-03-17 Texas Instruments System decoder circuit with temporary bit storage and method of operation
DE4327588A1 (de) * 1993-08-17 1995-02-23 Thomson Brandt Gmbh Verfahren zur Übertragung oder Demodulation eines digitalen Signals und Demodulator zur Decodierung dieses Signals
DE4335305A1 (de) * 1993-10-16 1995-04-20 Philips Patentverwaltung Verfahren und Schaltungsanordnung zur Übertragung von Sprachsignalen
EP0713295B1 (fr) * 1994-04-01 2004-09-15 Sony Corporation Methode et dispositif de codage et de decodage d'informations
DE4417993A1 (de) * 1994-05-21 1995-12-07 Bosch Gmbh Robert Verfahren zur Übertragung von digitalen Audio-Signalen und Vorrichtung zur Übertragung digitaler Audio-Signale
US5617541A (en) * 1994-12-21 1997-04-01 International Computer Science Institute System for packetizing data encoded corresponding to priority levels where reconstructed data corresponds to fractionalized priority level and received fractionalized packets
EP0978172B1 (fr) 1997-04-23 2000-10-11 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Procede de masquage des erreurs dans un courant de donnees audio
US6775652B1 (en) 1998-06-30 2004-08-10 At&T Corp. Speech recognition over lossy transmission systems
RU2283536C2 (ru) * 2000-07-17 2006-09-10 Конинклейке Филипс Электроникс Н.В. Способ кодирования сигнала
US7425618B2 (en) 2002-06-14 2008-09-16 Medimmune, Inc. Stabilized anti-respiratory syncytial virus (RSV) antibody formulations
US7132100B2 (en) 2002-06-14 2006-11-07 Medimmune, Inc. Stabilized liquid anti-RSV antibody formulations
EP2363025A1 (fr) 2003-03-27 2011-09-07 PTC Therapeutics, Inc. Ciblage d'enzymes du trajet d'epissage d'arnt pour l'identification de molecules anti-fongiques et/ou anti-proliferatives
EP2316487B1 (fr) 2003-04-11 2014-06-11 MedImmune, LLC Anticorps IL-9 recombinants et leurs utilisations
CA2562771C (fr) 2004-04-12 2013-04-09 Medimmune, Inc. Preparations d'anticorps anti-il-9 et leurs applications
US7351739B2 (en) 2004-04-30 2008-04-01 Wellgen, Inc. Bioactive compounds and methods of uses thereof
DK2497492T3 (en) 2004-06-01 2018-11-26 Icahn School Med Mount Sinai Genetically modified swine influenza virus and its applications
JP2008518023A (ja) 2004-10-27 2008-05-29 メディミューン，インコーポレーテッド 同族抗原に対する親和性を改変することによる抗体特異性の調節
EP2540741A1 (fr) 2006-03-06 2013-01-02 Aeres Biomedical Limited Anticorps humanisés anti CD22 et leur utilisation dans le traitement de l'oncologie, la transplantation et les maladies auto-immunes
KR20100017514A (ko) 2007-05-07 2010-02-16 메디뮨 엘엘씨 항 ｉｃｏｓ 항체, 및 종양, 이식 및 자가면역성 질환 치료에서의 이의 용도
EP2173378B1 (fr) 2007-06-27 2014-03-19 Admune Therapeutics LLC Complexes d'il-15 et il-15r alpha et leurs utilisations
CN102438652B (zh) 2008-11-12 2014-08-13 米迪缪尼有限公司 抗体制剂
CA2769822C (fr) 2009-08-13 2019-02-19 The Johns Hopkins University Methodes de modulation de la fonction immunitaire
WO2014047232A2 (fr) 2012-09-21 2014-03-27 Cornell University Inhibiteurs de c-rel et leurs utilisations
ES2747997T3 (es) 2012-10-24 2020-03-12 Novartis Ag Formas de IL-15R alfa, células que expresan formas de IL-15R alfa, y usos terapéuticos de IL-15R alfa y complejos IL-15/IL-15R alfa
US10335460B2 (en) 2014-07-29 2019-07-02 Novartis Ag IL-15 and IL-15Rα heterodimer dose escalation regimens for treating conditions
US10960086B2 (en) 2017-12-28 2021-03-30 Augusta University Research Institute, Inc. Aptamer compositions and methods of use thereof
EP3755332A1 (fr) 2018-02-21 2020-12-30 AI Therapeutics, Inc. Polythérapie avec apilimod et agents glutamatergiques

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EP0139803B1 (fr) * 1983-10-28 1987-10-14 International Business Machines Corporation Procédé de reconstitution d'informations perdues dans un système de transmission numérique de la voix et système de transmission utilisant ledit procédé
ATE50429T1 (de) * 1985-06-14 1990-02-15 Philips Nv System zum uebertragen von worten, gesichert bei einer kombination eines blockcodes und eines rekurrenten kodes, uebertragungsgeraet zur verwendung in solchem system und empfaengergeraet zur verwendung in solchem system.
DE3805169A1 (de) * 1988-02-19 1989-08-31 Inst Rundfunktechnik Gmbh Verfahren zum uebertragen eines digital-codierten tonsignals
US5010553A (en) * 1988-12-05 1991-04-23 Compuquest, Inc. High speed, error-free data transmission system and method
US5105442A (en) * 1990-11-07 1992-04-14 At&T Bell Laboratories Coded modulation with unequal error protection
US5164963A (en) * 1990-11-07 1992-11-17 At&T Bell Laboratories Coding for digital transmission
DE4111131C2 (de) * 1991-04-06 2001-08-23 Inst Rundfunktechnik Gmbh Verfahren zum Übertragen digitalisierter Tonsignale
US5289501A (en) * 1991-11-26 1994-02-22 At&T Bell Laboratories Coded modulation with unequal error protection for fading channels

Also Published As

Publication number Publication date
ES2090697T3 (es) 1996-10-16
ATE142828T1 (de) 1996-09-15
CA2122011C (fr) 1999-06-08
EP0609300A1 (fr) 1994-08-10
CA2122011A1 (fr) 1993-04-29
DE59207139D1 (de) 1996-10-17
US5440584A (en) 1995-08-08
AU2769192A (en) 1993-05-21
DK0609300T3 (da) 1996-11-25
WO1993008656A1 (fr) 1993-04-29
DE4135070C1 (fr) 1993-05-19

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