DE69622646T2 - Abschwächung der Kodebuchverstärkung bei Ausfall von Datenpaketen - Google Patents

Abschwächung der Kodebuchverstärkung bei Ausfall von Datenpaketen

Info

Publication number
DE69622646T2
DE69622646T2 DE69622646T DE69622646T DE69622646T2 DE 69622646 T2 DE69622646 T2 DE 69622646T2 DE 69622646 T DE69622646 T DE 69622646T DE 69622646 T DE69622646 T DE 69622646T DE 69622646 T2 DE69622646 T2 DE 69622646T2
Authority
DE
Germany
Prior art keywords
attenuation
event
data packet
codebook gain
packet failure
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 - Fee Related
Application number
DE69622646T
Other languages
English (en)
Other versions
DE69622646D1 (de
Inventor
Yair Shoham
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.)
AT&T Corp
Original Assignee
AT&T Corp
AT&T IPM Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23928093&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69622646(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by AT&T Corp, AT&T IPM Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of DE69622646D1 publication Critical patent/DE69622646D1/de
Publication of DE69622646T2 publication Critical patent/DE69622646T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
    • G10L19/04—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 using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (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)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE69622646T 1995-06-07 1996-05-29 Abschwächung der Kodebuchverstärkung bei Ausfall von Datenpaketen Expired - Fee Related DE69622646T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48542095A 1995-06-07 1995-06-07

Publications (2)

Publication Number Publication Date
DE69622646D1 DE69622646D1 (de) 2002-09-05
DE69622646T2 true DE69622646T2 (de) 2003-03-13

Family

ID=23928093

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69622646T Expired - Fee Related DE69622646T2 (de) 1995-06-07 1996-05-29 Abschwächung der Kodebuchverstärkung bei Ausfall von Datenpaketen

Country Status (8)

Country Link
EP (1) EP0747884B1 (de)
JP (1) JPH09120297A (de)
KR (1) KR970004469A (de)
AU (1) AU5463796A (de)
CA (1) CA2177413A1 (de)
DE (1) DE69622646T2 (de)
ES (1) ES2177729T3 (de)
MX (1) MX9602144A (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI113571B (fi) * 1998-03-09 2004-05-14 Nokia Corp Puheenkoodaus
US6636829B1 (en) * 1999-09-22 2003-10-21 Mindspeed Technologies, Inc. Speech communication system and method for handling lost frames
AU1922901A (en) * 1999-11-19 2001-05-30 Siemens Information And Communication Mobile Llc System and method for wireless communication incorporating error concealment
FR2813722B1 (fr) 2000-09-05 2003-01-24 France Telecom Procede et dispositif de dissimulation d'erreurs et systeme de transmission comportant un tel dispositif
JP2003044098A (ja) * 2001-07-26 2003-02-14 Nec Corp 音声帯域拡張装置及び音声帯域拡張方法
JP4419748B2 (ja) * 2004-08-12 2010-02-24 沖電気工業株式会社 消失補償装置、消失補償方法、および消失補償プログラム
KR20090076964A (ko) * 2006-11-10 2009-07-13 파나소닉 주식회사 파라미터 복호 장치, 파라미터 부호화 장치 및 파라미터 복호 방법
EP2233288A1 (de) 2009-03-23 2010-09-29 Founder Fine Chemical Industry Co., Ltd. Strahlungsempfindliche Zusammensetzung und Verfahren zur Herstellung der strahlungsempfindlichen Zusammensetzung
CN103988255B (zh) * 2011-10-20 2016-03-02 Lg电子株式会社 管理抖动缓存器的方法和使用其的抖动缓存器
US9449607B2 (en) * 2012-01-06 2016-09-20 Qualcomm Incorporated Systems and methods for detecting overflow
EP2980797A1 (de) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiodecodierer, Verfahren und Computerprogramm mit Zero-Input-Response zur Erzeugung eines sanften Übergangs
KR20180026528A (ko) * 2015-07-06 2018-03-12 노키아 테크놀로지스 오와이 오디오 신호 디코더를 위한 비트 에러 검출기
JP6883047B2 (ja) * 2016-03-07 2021-06-02 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ 適切に復号されたオーディオフレームの復号化表現の特性を使用する誤り隠蔽ユニット、オーディオデコーダ、および関連する方法およびコンピュータプログラム
JP6826126B2 (ja) * 2016-03-07 2021-02-03 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ 異なる周波数帯域の異なる減衰係数に従って隠蔽されたオーディオフレームをフェードアウトする誤り隠蔽ユニット、オーディオデコーダ、および関連する方法およびコンピュータプログラム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3102015B2 (ja) * 1990-05-28 2000-10-23 日本電気株式会社 音声復号化方法
US5383202A (en) * 1992-11-25 1995-01-17 Motorola, Inc. Simplified method of attenuation of logarithmically coded digital signals
US5450449A (en) * 1994-03-14 1995-09-12 At&T Ipm Corp. Linear prediction coefficient generation during frame erasure or packet loss

Also Published As

Publication number Publication date
CA2177413A1 (en) 1996-12-08
MX9602144A (es) 1997-09-30
ES2177729T3 (es) 2002-12-16
AU5463796A (en) 1996-12-19
EP0747884A3 (de) 1997-09-10
KR970004469A (ko) 1997-01-29
EP0747884A2 (de) 1996-12-11
DE69622646D1 (de) 2002-09-05
EP0747884B1 (de) 2002-07-31
JPH09120297A (ja) 1997-05-06

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee