[go: up one dir, main page]

ES2127350T3 - Dispositivo de transcodificacion. - Google Patents

Dispositivo de transcodificacion.

Info

Publication number
ES2127350T3
ES2127350T3 ES94202246T ES94202246T ES2127350T3 ES 2127350 T3 ES2127350 T3 ES 2127350T3 ES 94202246 T ES94202246 T ES 94202246T ES 94202246 T ES94202246 T ES 94202246T ES 2127350 T3 ES2127350 T3 ES 2127350T3
Authority
ES
Spain
Prior art keywords
encoder
decoder
data signal
compressed video
decoding
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
ES94202246T
Other languages
English (en)
Inventor
Dolf Albert Schinkel
Arian Koster
Johannes Fransiscus Koppelmans
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.)
Koninklijke KPN NV
Original Assignee
Koninklijke KPN 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 Koninklijke KPN NV filed Critical Koninklijke KPN NV
Application granted granted Critical
Publication of ES2127350T3 publication Critical patent/ES2127350T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/162—User input
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Luminescent Compositions (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Electromechanical Clocks (AREA)
  • Holo Graphy (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Color Television Systems (AREA)
  • Image Processing (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

TRANSCODIFICADORES CONOCIDOS PARA SEÑALES DE VIDEO COMPRIMIDAS COMPRENDEN UN DECODIFICADOR Y UN CODIFICADOR ACOPLADO A EL, ENTRE LOS CUALES ES TRANSMITIDA UNA SEÑAL DE DATOS. A CAUSA DE LAS SEÑALES DE VIDEO COMPRIMIDAS COMPRENDE, ASI DENOMINADAS, IMAGENES DE DIFERENCIA E IMAGENES NORMALES, AMBOS EL DECODIFICADOR Y EL CODIFICADOR DEBEN TENER UN BUCLE DE RE-ALIMENTACION QUE ES UTILIZADO EN DECODIFICAR Y CODIFICAR UNA IMAGEN DE DIFERENCIA Y NO ES UTILIZADO PARA DECODIFICAR Y CODIFICAR UNA IMAGEN NORMAL. POR EJEMPLO, PARA EL PROPOSITO DE MEDIOS DE PREDICCION (COMPENSACION DE MOVIMIENTO Y ESTIMACION DE MOVIMIENTO) PRESENTES EN EL BUCLE DE RE-ALIMENTACION DEL CODIFICADOR, MUCHO CALCULO AUTOMATICO TIENE QUE SER REALIZADO EN EL CODIFICADOR. EL CALCULO REQUERIDO ES CONSIDERABLEMENTE REDUCIDO TRANSMITIENDO CONCOMITANTEMENTE UNA O MAS SEÑALES DE INFORMACION EN ADICION A LA SEÑAL DE DATOS EN UN TRANSCODIFICADOR DE ACUERDO A LA INVENCION, Y TIENEN LUGAR DECODIFICACION COMPLETA Y CODIFICACION COMPLETA NOTAN LARGA.
ES94202246T 1993-08-04 1994-08-03 Dispositivo de transcodificacion. Expired - Lifetime ES2127350T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9301358A NL9301358A (nl) 1993-08-04 1993-08-04 Transcodeerinrichting.

Publications (1)

Publication Number Publication Date
ES2127350T3 true ES2127350T3 (es) 1999-04-16

Family

ID=19862729

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94202246T Expired - Lifetime ES2127350T3 (es) 1993-08-04 1994-08-03 Dispositivo de transcodificacion.

Country Status (15)

Country Link
US (1) US5544266A (es)
EP (1) EP0637893B1 (es)
JP (1) JP2860880B2 (es)
KR (1) KR0127094B1 (es)
CN (1) CN1056489C (es)
AT (1) ATE174178T1 (es)
AU (1) AU672507B2 (es)
CA (1) CA2128793C (es)
DE (1) DE69414931T2 (es)
DK (1) DK0637893T3 (es)
ES (1) ES2127350T3 (es)
FI (1) FI112146B (es)
GR (1) GR3029529T3 (es)
NL (1) NL9301358A (es)
NO (1) NO308569B1 (es)

Families Citing this family (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6243139B1 (en) * 1993-12-22 2001-06-05 Canon Kabushiki Kaisha Apparatus for block-encoding input image signals
US5715009A (en) 1994-03-29 1998-02-03 Sony Corporation Picture signal transmitting method and apparatus
US5940130A (en) * 1994-04-21 1999-08-17 British Telecommunications Public Limited Company Video transcoder with by-pass transfer of extracted motion compensation data
SG43051A1 (en) * 1994-04-21 1997-10-17 British Telecomm A transcoder
DE4416967A1 (de) * 1994-05-13 1995-11-16 Thomson Brandt Gmbh Verfahren und Vorrichtung zur Transcodierung von Bitströmen mit Videodaten
DE69535800D1 (de) 1994-06-08 2008-09-11 Matsushita Electric Ind Co Ltd Bildumsetzungsvorrichtung
DE69529579D1 (de) 1994-06-17 2003-03-13 Snell & Wilcox Ltd Komprimieren eines aus kompressionskodierten Videosignalen nach deren Teildekodierung kombinierten Signales
JP3058028B2 (ja) * 1994-10-31 2000-07-04 三菱電機株式会社 画像符号化データ再符号化装置
US5617142A (en) * 1994-11-08 1997-04-01 General Instrument Corporation Of Delaware Method and apparatus for changing the compression level of a compressed digital signal
JPH09512410A (ja) * 1995-02-15 1997-12-09 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ ビデオ信号の符号変換方法および装置
GB2307613B (en) * 1995-08-31 2000-03-22 British Broadcasting Corp Switching bit-rate reduced signals
DE19608737C1 (de) * 1996-03-06 1997-06-19 Siemens Ag Anordnung und Verfahren zur Formatwandlung von Bildblöcken von einem ersten Codierungsformat in ein zweites Codierungsformat
DE69730419T2 (de) * 1996-04-12 2005-09-08 Imedia Corp., San Francisco System zur Verteilung komprimierter Videosignale, mit statistischem Multiplexer mit Transkodierern
GB9608271D0 (en) 1996-04-22 1996-06-26 Electrocraft Lab Video compession
JP3623056B2 (ja) 1996-09-10 2005-02-23 ソニー株式会社 動画像圧縮装置
US6141447A (en) * 1996-11-21 2000-10-31 C-Cube Microsystems, Inc. Compressed video transcoder
KR100599017B1 (ko) * 1996-12-12 2006-12-13 소니 가부시끼 가이샤 영상 데이터 압축 장치 및 그 방법
US5870146A (en) * 1997-01-21 1999-02-09 Multilink, Incorporated Device and method for digital video transcoding
WO1999005870A2 (en) * 1997-07-22 1999-02-04 Koninklijke Philips Electronics N.V. Method of switching between video sequences and corresponding device
WO1999022524A1 (en) * 1997-10-23 1999-05-06 Mitsubishi Denki Kabushiki Kaisha Image decoder, image encoder, image communication system, and encoded bit stream converter
EP1010330B1 (en) * 1997-11-27 2002-01-16 BRITISH TELECOMMUNICATIONS public limited company Transcoding
EP0982726A4 (en) 1998-01-19 2003-06-04 Sony Corp CUTTING SYSTEM, CUTTING CONTROL DEVICE AND CUTTING METHOD
GB2333656B (en) 1998-01-22 2002-08-14 British Broadcasting Corp Compressed signals
JPH11275592A (ja) * 1998-01-22 1999-10-08 Victor Co Of Japan Ltd 動画像符号列変換装置及びその方法
US6058143A (en) * 1998-02-20 2000-05-02 Thomson Licensing S.A. Motion vector extrapolation for transcoding video sequences
CA2265089C (en) 1998-03-10 2007-07-10 Sony Corporation Transcoding system using encoding history information
JP4308924B2 (ja) * 1998-03-31 2009-08-05 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 符号化データストリームのデータ変更方法及び装置
US6477706B1 (en) 1998-05-01 2002-11-05 Cogent Technology, Inc. Cable television system using transcoding method
US6226328B1 (en) * 1998-05-01 2001-05-01 Boom Corporation Transcoding apparatus for digital video networking
US6215824B1 (en) * 1998-05-01 2001-04-10 Boom Corporation Transcoding method for digital video networking
US7130351B1 (en) * 1998-05-14 2006-10-31 Vulcan Patents Llc Storage reduction during compression
JP3099809B2 (ja) * 1998-06-04 2000-10-16 日本電気株式会社 片フィールドデータによるフレーム表示方法および装置
US6549652B1 (en) 1998-09-11 2003-04-15 Cirrus Logic, Inc. Method and apparatus for reducing noise during lossy transformation processes
US6307971B1 (en) 1998-10-01 2001-10-23 Sharewave, Inc. Method and apparatus for digital data compression
US7158681B2 (en) * 1998-10-01 2007-01-02 Cirrus Logic, Inc. Feedback scheme for video compression system
US6229852B1 (en) * 1998-10-26 2001-05-08 Sony Corporation Reduced-memory video decoder for compressed high-definition video data
US7194138B1 (en) * 1998-11-04 2007-03-20 International Business Machines Corporation Reduced-error processing of transformed digital data
US6393155B1 (en) * 1998-11-04 2002-05-21 International Business Machines Corporation Error reduction in transformed digital data
US6256422B1 (en) * 1998-11-04 2001-07-03 International Business Machines Corporation Transform-domain correction of real-domain errors
WO2000031878A1 (en) * 1998-11-20 2000-06-02 Interval Research Corporation Low cost video compression using fast, modified z-coding of wavelet pyramids
US6434197B1 (en) 1999-01-07 2002-08-13 General Instrument Corporation Multi-functional transcoder for compressed bit streams
KR100420740B1 (ko) 1999-02-05 2004-03-02 소니 가부시끼 가이샤 인코딩 장치, 인코딩 방법, 디코딩 장치, 디코딩 방법,코딩 시스템, 코딩 방법
WO2000046995A1 (en) * 1999-02-05 2000-08-10 Sony Corporation Encoding system, encoding method, decoding system, decoding method, multiplexing device, multiplexing method, display system and display method
KR100571687B1 (ko) * 1999-02-09 2006-04-18 소니 가부시끼 가이샤 코딩 시스템 및 방법, 부호화 장치 및 방법, 복호화 장치및 방법, 기록 장치 및 방법, 및 재생 장치 및 방법
US6259741B1 (en) * 1999-02-18 2001-07-10 General Instrument Corporation Method of architecture for converting MPEG-2 4:2:2-profile bitstreams into main-profile bitstreams
US6625211B1 (en) * 1999-02-25 2003-09-23 Matsushita Electric Industrial Co., Ltd. Method and apparatus for transforming moving picture coding system
JP3807157B2 (ja) * 1999-06-25 2006-08-09 日本ビクター株式会社 符号化装置及び符号化方法
JP3694888B2 (ja) 1999-12-03 2005-09-14 ソニー株式会社 復号装置および方法、符号化装置および方法、情報処理装置および方法、並びに記録媒体
CN1183766C (zh) * 2000-01-14 2005-01-05 皇家菲利浦电子有限公司 在编码信号中的简化标识插入
GB0003954D0 (en) * 2000-02-18 2000-04-12 Radioscape Ltd Method of and apparatus for converting a signal between data compression formats
GB2398215B (en) * 2000-02-18 2004-09-22 Radioscape Ltd Method of and apparatus for converting an audio signal between data compression formats
JP2001251616A (ja) * 2000-03-02 2001-09-14 Media Glue Corp 多重化音響・動画圧縮符号化信号変換方法、装置および変換プログラムを記録した媒体
JP4576783B2 (ja) * 2000-03-13 2010-11-10 ソニー株式会社 データ処理方法及びデータ処理装置
JP2001339460A (ja) * 2000-05-26 2001-12-07 Matsushita Electric Ind Co Ltd デジタル送受信装置
US6711212B1 (en) 2000-09-22 2004-03-23 Industrial Technology Research Institute Video transcoder, video transcoding method, and video communication system and method using video transcoding with dynamic sub-window skipping
US6650707B2 (en) 2001-03-02 2003-11-18 Industrial Technology Research Institute Transcoding apparatus and method
US6804299B2 (en) * 2001-06-15 2004-10-12 Microsoft Corporation Methods and systems for reducing requantization-originated generational error in predictive video streams using motion compensation
KR100395396B1 (ko) * 2001-06-15 2003-08-21 주식회사 성진씨앤씨 다채널 동영상 압축 방법 및 장치
US7236529B2 (en) * 2001-10-30 2007-06-26 Industrial Technology Research Institute Methods and systems for video transcoding in DCT domain with low complexity
JP4193406B2 (ja) * 2002-04-16 2008-12-10 三菱電機株式会社 映像データ変換装置および映像データ変換方法
KR100454151B1 (ko) * 2002-06-28 2004-10-26 주식회사농심 비스켓 및 그 제조 방법
JP4196726B2 (ja) * 2003-05-14 2008-12-17 ソニー株式会社 画像処理装置および画像処理方法、記録媒体、並びに、プログラム
JP4120934B2 (ja) * 2003-06-16 2008-07-16 ソニー株式会社 画像処理装置および画像処理方法、記録媒体、並びに、プログラム
TWI230547B (en) * 2004-02-04 2005-04-01 Ind Tech Res Inst Low-complexity spatial downscaling video transcoder and method thereof
US20050232497A1 (en) * 2004-04-15 2005-10-20 Microsoft Corporation High-fidelity transcoding
WO2006072992A1 (ja) * 2005-01-07 2006-07-13 Fujitsu Limited 圧縮符号化装置、伸張復号化装置
US8102916B1 (en) 2006-01-12 2012-01-24 Zenverge, Inc. Dynamically changing media compression format in compressed domain
US7830800B1 (en) 2006-01-12 2010-11-09 Zenverge, Inc. Architecture for combining media processing with networking
US8311114B1 (en) * 2006-12-06 2012-11-13 Zenverge, Inc. Streamlined transcoder architecture
US8457958B2 (en) * 2007-11-09 2013-06-04 Microsoft Corporation Audio transcoder using encoder-generated side information to transcode to target bit-rate
US8265168B1 (en) 2008-02-01 2012-09-11 Zenverge, Inc. Providing trick mode for video stream transmitted over network
WO2009097284A1 (en) * 2008-02-01 2009-08-06 Zenverge, Inc. Intermediate compression of reference frames for transcoding
US8396114B2 (en) * 2009-01-29 2013-03-12 Microsoft Corporation Multiple bit rate video encoding using variable bit rate and dynamic resolution for adaptive video streaming
US8311115B2 (en) * 2009-01-29 2012-11-13 Microsoft Corporation Video encoding using previously calculated motion information
US8270473B2 (en) * 2009-06-12 2012-09-18 Microsoft Corporation Motion based dynamic resolution multiple bit rate video encoding
US8705616B2 (en) 2010-06-11 2014-04-22 Microsoft Corporation Parallel multiple bitrate video encoding to reduce latency and dependences between groups of pictures
US9591318B2 (en) 2011-09-16 2017-03-07 Microsoft Technology Licensing, Llc Multi-layer encoding and decoding
US11089343B2 (en) 2012-01-11 2021-08-10 Microsoft Technology Licensing, Llc Capability advertisement, configuration and control for video coding and decoding

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047151A (en) * 1974-12-24 1977-09-06 Rydbeck Nils R C Adaptive error correcting transmission system
JPS57166640A (en) * 1981-04-03 1982-10-14 Hitachi Ltd Data transmission converting system of buffer device
DE3613343A1 (de) * 1986-04-19 1987-10-22 Philips Patentverwaltung Hybrid-codierer
DE3639753A1 (de) * 1986-11-21 1988-06-01 Inst Rundfunktechnik Gmbh Verfahren zum uebertragen digitalisierter tonsignale
NL8801155A (nl) * 1988-05-03 1989-12-01 Philips Nv Televisie-overdrachtsysteem met hybride kodeerschakeling.
CA2016641C (en) * 1989-05-12 1995-07-11 Toshiyuki Tanoi Adaptive interframe prediction coded video communications system
EP0442548B1 (fr) * 1990-01-30 1995-08-02 Laboratoires D'electronique Philips S.A.S. Dispositifs de codage et de décodage à longueur variable de signaux numériques
JPH04192080A (ja) * 1990-11-27 1992-07-10 Mitsubishi Electric Corp 画像メモリ装置及び画像データ処理方法
EP0500077B1 (en) * 1991-02-21 1997-09-24 Nec Corporation Motion image data compression coding apparatus
US5334977A (en) * 1991-03-08 1994-08-02 Nec Corporation ADPCM transcoder wherein different bit numbers are used in code conversion
NL9200499A (nl) * 1992-03-17 1993-10-18 Nederland Ptt Systeem omvattende ten minste een encoder voor het coderen van een digitaal signaal en ten minste een decoder voor het decoderen van een gecodeerd digitaal signaal, alsmede encoder en decoder voor toepassing in het systeem.
NL9201594A (nl) * 1992-09-14 1994-04-05 Nederland Ptt Systeem omvattende ten minste één encoder voor het coderen van een digitaal signaal en ten minste één decoder voor het decoderen van een gecodeerd digitaal signaal, en encoder en decoder voor toepassing in het systeem.

Also Published As

Publication number Publication date
GR3029529T3 (en) 1999-06-30
NO308569B1 (no) 2000-09-25
ATE174178T1 (de) 1998-12-15
AU672507B2 (en) 1996-10-03
DK0637893T3 (da) 1999-08-16
EP0637893B1 (en) 1998-12-02
DE69414931T2 (de) 1999-07-08
JP2860880B2 (ja) 1999-02-24
FI943622A (fi) 1995-02-05
DE69414931D1 (de) 1999-01-14
EP0637893A1 (en) 1995-02-08
CN1111878A (zh) 1995-11-15
JPH0795090A (ja) 1995-04-07
AU6880594A (en) 1995-02-16
KR950006612A (ko) 1995-03-21
FI112146B (fi) 2003-10-31
FI943622A0 (fi) 1994-08-04
NO942866D0 (es) 1994-08-02
KR0127094B1 (ko) 1997-12-29
CA2128793A1 (en) 1995-02-05
NL9301358A (nl) 1995-03-01
CA2128793C (en) 1998-07-14
NO942866L (no) 1995-02-06
US5544266A (en) 1996-08-06
CN1056489C (zh) 2000-09-13

Similar Documents

Publication Publication Date Title
ES2127350T3 (es) Dispositivo de transcodificacion.
ES2190995T3 (es) Decodificador de video con compensacion de movimiento.
ATE189353T1 (de) Videodatenkodierer und -dekodierer
ES2171312T3 (es) Transcodificacion.
KR970060176A (ko) 부호화 장치, 부호화 방법, 전송 장치, 전송 방법 및 기록 매체
NO953369L (no) Fremgangsmåte og system for to-trinn videofilm kompresjon
GB2381403A (en) Video coding using multiple buffers
MY140227A (en) Picture coding method
NO952221L (no) Apparat for dekoding av kodete bildedata
WO2000002392A3 (en) Scalable video coding system
BR0214328A (pt) Métodos de decodificação de um bloco de imagem e de compressão de dados de vìdeo, e, decodificador de vìdeo para decodificar um bloco de imagem
BR0110770A (pt) Método de codificação/ decodificação de um sinal de vìdeo representando uma sequência de imagens, e, codificador/decodificador de vìdeo
EP1450565A4 (en) PROCESS FOR CODING MOVING IMAGES AND METHOD FOR DECODING MOVING IMAGES
BR0302718A (pt) Método e aparelho de codificação de imagem e método e aparelho de decodificação de imagem
MY142188A (en) Reduced resolution update mode for advanced video coding
BR9801156A (pt) Método de decodificação de predição de imagem, aparelho de decodificação de predição de imagem, método de codificação de predição de imagem, aparelho de codificação de predição de imagem e meio de armazenamento de dados.
MY137090A (en) Picture decoding method
TW200735666A (en) Moving image decoding apparatus and moving image coding apparatus
KR950703257A (ko) 자막 데이타 부호화/복호화 장치 및 그 방법(Apparatus and method for coding/decoding subtitles data)
KR970057951A (ko) 화상 부호화 장치와 화상 복호화 장치 및 부호화 · 복호화 시스템
KR900017409A (ko) 화상 데이타의 전송 방법 및 그 전송 장치
BR0206798A (pt) Método de codificação e decodificação de imagens, dispositivos e aplicações correspondentes
JP2005503736A5 (es)
NO20014284D0 (no) Apparat for koding og dekoding av videosignaler
ATE466452T1 (de) Videokodierungsverfahren und entsprechendes übertragbares videosignal

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 637893

Country of ref document: ES