DE69421636T2 - Gerät zur Quantifizierungskontrolle innerhalb eines Videosignalkompressors - Google Patents

Gerät zur Quantifizierungskontrolle innerhalb eines Videosignalkompressors

Info

Publication number
DE69421636T2
DE69421636T2 DE69421636T DE69421636T DE69421636T2 DE 69421636 T2 DE69421636 T2 DE 69421636T2 DE 69421636 T DE69421636 T DE 69421636T DE 69421636 T DE69421636 T DE 69421636T DE 69421636 T2 DE69421636 T2 DE 69421636T2
Authority
DE
Germany
Prior art keywords
video signal
signal compressor
quantification control
quantification
control
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
DE69421636T
Other languages
English (en)
Other versions
DE69421636D1 (de
Inventor
Daniel Jorge Reininger
Ajanta Guha
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.)
RCA Licensing Corp
Original Assignee
RCA Licensing 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
Application filed by RCA Licensing Corp filed Critical RCA Licensing Corp
Publication of DE69421636D1 publication Critical patent/DE69421636D1/de
Application granted granted Critical
Publication of DE69421636T2 publication Critical patent/DE69421636T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04N19/10—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
    • 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
    • H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
    • 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
    • H04N19/102—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
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Signal Processing For Recording (AREA)
  • Color Television Systems (AREA)
DE69421636T 1993-02-22 1994-02-16 Gerät zur Quantifizierungskontrolle innerhalb eines Videosignalkompressors Expired - Fee Related DE69421636T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/020,920 US5426463A (en) 1993-02-22 1993-02-22 Apparatus for controlling quantizing in a video signal compressor

Publications (2)

Publication Number Publication Date
DE69421636D1 DE69421636D1 (de) 1999-12-23
DE69421636T2 true DE69421636T2 (de) 2000-03-02

Family

ID=21801295

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69421636T Expired - Fee Related DE69421636T2 (de) 1993-02-22 1994-02-16 Gerät zur Quantifizierungskontrolle innerhalb eines Videosignalkompressors

Country Status (8)

Country Link
US (1) US5426463A (de)
EP (1) EP0613306B1 (de)
JP (1) JP3688730B2 (de)
KR (1) KR100327650B1 (de)
DE (1) DE69421636T2 (de)
ES (1) ES2138647T3 (de)
MX (1) MX9401310A (de)
SG (1) SG64871A1 (de)

Families Citing this family (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5887115A (en) * 1993-01-13 1999-03-23 Hitachi America, Ltd. Method and apparatus for implementing a video tape recorder for recording digital video signals having either a fixed or variable data transmission rate
BR9404929A (pt) * 1993-04-09 1999-07-27 Sony Corp Processo e aparelho para codificação de imagens e suporte de gravação de imagens
US5703646A (en) * 1993-04-09 1997-12-30 Sony Corporation Picture encoding method, picture encoding apparatus and picture recording medium
JP2531106B2 (ja) * 1993-08-17 1996-09-04 日本電気株式会社 動画像符号化制御方式
US5576843A (en) * 1993-10-29 1996-11-19 Time Warner Entertainment Co., L.P. System and method for controlling play of multiple dialog audio tracks of a software carrier
BE1007808A3 (nl) * 1993-11-30 1995-10-24 Philips Electronics Nv Inrichting voor het coderen van een videosignaal.
JPH07177464A (ja) * 1993-12-16 1995-07-14 Pioneer Video Corp リアルタイム画像圧縮処理装置
EP0660619A1 (de) * 1993-12-22 1995-06-28 Laboratoires D'electronique Philips S.A.S. Verfahren zur variablen Längenkodierung von Bildern und Vorrichtung zur Ausführung eines solchen Verfahrens
EP0665653B1 (de) * 1994-01-28 2001-12-05 Matsushita Electric Industrial Co., Ltd. Vorrichtung und Verfahren zur Dekodierung von Kodes variabler Länge
JP3097437B2 (ja) * 1994-03-14 2000-10-10 松下電器産業株式会社 圧縮動画像の記録方法と再生装置
FR2720582B1 (fr) * 1994-05-27 1996-08-14 Sgs Thomson Microelectronics Circuit de détermination du coefficient de quantification dans une chaîne de compression d'image.
JP2935334B2 (ja) * 1994-07-28 1999-08-16 日本電気株式会社 符号量制御方法
JP2882287B2 (ja) * 1994-08-22 1999-04-12 日本電気株式会社 動画像符号化装置
US5534930A (en) * 1994-09-12 1996-07-09 Daewoo Electronics Co., Ltd. Method for constructing a quantization pattern codebook
US5623311A (en) * 1994-10-28 1997-04-22 Matsushita Electric Corporation Of America MPEG video decoder having a high bandwidth memory
US5920352A (en) * 1994-10-28 1999-07-06 Matsushita Electric Industrial Co., Ltd. Image memory storage system and method for a block oriented image processing system
US5889561A (en) * 1994-11-04 1999-03-30 Rca Thomson Licensing Corporation Method and apparatus for scaling a compressed video bitstream
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
EP0753235B1 (de) * 1994-12-28 2000-07-12 Koninklijke Philips Electronics N.V. Pufferverwaltung in kompressionssystemen mit variabler bitrate
KR100727787B1 (ko) * 1995-01-25 2007-11-09 톰슨 비디오신호압축시스템들을위한양자화회로
DE69603924T2 (de) * 1995-02-24 2000-08-31 Koninkl Philips Electronics Nv Vorrichtung und verfahren zur kodierung von videobildern
US5841476A (en) * 1995-03-03 1998-11-24 Kokusai Denshin Denwa Co. Ltd. Coding apparatus for encoding motion picture
US6151360A (en) * 1995-04-28 2000-11-21 Sony Corporation Method for encoding video signal using statistical information
KR0153671B1 (ko) * 1995-06-30 1998-11-16 배순훈 고선명 텔레비젼 엔코더의 레이트 콘트롤러
FR2736743B1 (fr) * 1995-07-10 1997-09-12 France Telecom Procede de controle de debit de sortie d'un codeur de donnees numeriques representatives de sequences d'images
US6160579A (en) * 1995-08-01 2000-12-12 Canon Kabushiki Kaisha Image processing apparatus and method
RU2093968C1 (ru) * 1995-08-02 1997-10-20 Закрытое акционерное общество "Техно-ТМ" Способ кодирования-декодирования изображений и устройство для его осуществления
US5926222A (en) * 1995-09-28 1999-07-20 Intel Corporation Bitrate estimator for selecting quantization levels for image encoding
US5909249A (en) * 1995-12-15 1999-06-01 General Instrument Corporation Reduction of noise visibility in a digital video system
US5686963A (en) * 1995-12-26 1997-11-11 C-Cube Microsystems Method for performing rate control in a video encoder which provides a bit budget for each frame while employing virtual buffers and virtual buffer verifiers
KR970057947A (ko) * 1995-12-28 1997-07-31 배순훈 영상 부호화기에서의 타입 결정 및 버퍼 제어 장치
KR970057995A (ko) * 1995-12-30 1997-07-31 배순훈 Mpeg 복호기에서 역양자화기의 최적화 장치
US5731837A (en) * 1996-01-25 1998-03-24 Thomson Multimedia, S.A. Quantization circuitry as for video signal compression systems
US6957350B1 (en) 1996-01-30 2005-10-18 Dolby Laboratories Licensing Corporation Encrypted and watermarked temporal and resolution layering in advanced television
US6337879B1 (en) * 1996-08-14 2002-01-08 Sony Corporation Video data compression apparatus and method of same
WO1998035500A1 (en) * 1997-02-11 1998-08-13 Sharp Kabushiki Kaisha Method and apparatus for optimizing quantizer values in an image encoder
US5974182A (en) * 1997-04-24 1999-10-26 Eastman Kodak Company Photographic image compression method and system
US6181821B1 (en) * 1997-04-30 2001-01-30 Massachusetts Institute Of Technology Predictive source encoding and multiplexing
US6088392A (en) * 1997-05-30 2000-07-11 Lucent Technologies Inc. Bit rate coder for differential quantization
KR20000068362A (ko) * 1997-07-01 2000-11-25 이데이 노부유끼 화상 부호화 제어장치와 방법, 부호화 시스템, 전송 시스템 및방송 시스템
WO1999003282A1 (en) 1997-07-08 1999-01-21 Sony Corporation Video data encoder, video data encoding method, video data transmitter, and video data recording medium
US6335950B1 (en) * 1997-10-14 2002-01-01 Lsi Logic Corporation Motion estimation engine
JP4531871B2 (ja) * 1997-10-30 2010-08-25 富士通セミコンダクター株式会社 画像情報処理装置及び符号装置
US6366704B1 (en) 1997-12-01 2002-04-02 Sharp Laboratories Of America, Inc. Method and apparatus for a delay-adaptive rate control scheme for the frame layer
US6067118A (en) * 1997-12-16 2000-05-23 Philips Electronics North America Corp. Method of frame-by-frame calculation of quantization matrices
US6173069B1 (en) 1998-01-09 2001-01-09 Sharp Laboratories Of America, Inc. Method for adapting quantization in video coding using face detection and visual eccentricity weighting
US6278735B1 (en) 1998-03-19 2001-08-21 International Business Machines Corporation Real-time single pass variable bit rate control strategy and encoder
US6895048B2 (en) * 1998-03-20 2005-05-17 International Business Machines Corporation Adaptive encoding of a sequence of still frames or partially still frames within motion video
US6396956B1 (en) 1998-03-31 2002-05-28 Sharp Laboratories Of America, Inc. Method and apparatus for selecting image data to skip when encoding digital video
CN1174624C (zh) * 1998-09-29 2004-11-03 松下电器产业株式会社 可变比特率编码装置
US6526097B1 (en) * 1999-02-03 2003-02-25 Sarnoff Corporation Frame-level rate control for plug-in video codecs
JP2000253397A (ja) * 1999-03-01 2000-09-14 Nec Corp 動画像符号化装置
JP4289727B2 (ja) * 1999-07-06 2009-07-01 キヤノン株式会社 画像符号化装置、方法及びコンピュータ読み取り可能な記憶媒体
US6535251B1 (en) 1999-10-26 2003-03-18 Sharplabs Of America, Inc. Video encoder and method for adjusting quantization step in real time
JP2001169281A (ja) * 1999-12-13 2001-06-22 Matsushita Electric Ind Co Ltd 動画像符号化装置、および動画像符号化方法
KR100357266B1 (ko) * 2000-12-06 2002-10-19 엘지전자 주식회사 데이터 분할 기법을 이용한 영상 부호화 전송방법
JP4534106B2 (ja) * 2000-12-26 2010-09-01 日本電気株式会社 動画像符号化システム及び方法
US8374237B2 (en) 2001-03-02 2013-02-12 Dolby Laboratories Licensing Corporation High precision encoding and decoding of video images
US7266150B2 (en) 2001-07-11 2007-09-04 Dolby Laboratories, Inc. Interpolation of video compression frames
US8111754B1 (en) 2001-07-11 2012-02-07 Dolby Laboratories Licensing Corporation Interpolation of video compression frames
US20030112863A1 (en) 2001-07-12 2003-06-19 Demos Gary A. Method and system for improving compressed image chroma information
US7042941B1 (en) * 2001-07-17 2006-05-09 Vixs, Inc. Method and apparatus for controlling amount of quantization processing in an encoder
US20030123540A1 (en) * 2001-12-27 2003-07-03 Koninklijke Philips Electronics N.V. Dynamic control in complexity-constrained data compression
US7295610B2 (en) * 2002-03-27 2007-11-13 Scientific-Atlanta, Inc. Hybrid rate control in a digital stream transcoder
US7190723B2 (en) * 2002-03-27 2007-03-13 Scientific-Atlanta, Inc. Digital stream transcoder with a hybrid-rate controller
KR20040058929A (ko) * 2002-12-27 2004-07-05 삼성전자주식회사 Ｄｔｃ 기반의 개선된 동영상 부호화 방법 및 그 장치
US8031768B2 (en) * 2004-12-15 2011-10-04 Maxim Integrated Products, Inc. System and method for performing optimized quantization via quantization re-scaling
US7974193B2 (en) 2005-04-08 2011-07-05 Qualcomm Incorporated Methods and systems for resizing multimedia content based on quality and rate information
US20060280242A1 (en) * 2005-06-13 2006-12-14 Nokia Corporation System and method for providing one-pass rate control for encoders
US20070201388A1 (en) * 2006-01-31 2007-08-30 Qualcomm Incorporated Methods and systems for resizing multimedia content based on quality and rate information
US8582905B2 (en) * 2006-01-31 2013-11-12 Qualcomm Incorporated Methods and systems for rate control within an encoding device
JP4250638B2 (ja) * 2006-06-30 2009-04-08 株式会社東芝 動画像符号化装置及びその方法
US8724698B2 (en) * 2007-04-13 2014-05-13 Apple Inc. Method and system for video rate control
US8995522B2 (en) * 2007-04-13 2015-03-31 Apple Inc. Method and system for rate control
TW200845723A (en) * 2007-04-23 2008-11-16 Thomson Licensing Method and apparatus for encoding video data, method and apparatus for decoding encoded video data and encoded video signal
US8213498B2 (en) * 2007-05-31 2012-07-03 Qualcomm Incorporated Bitrate reduction techniques for image transcoding
JP4915317B2 (ja) * 2007-09-05 2012-04-11 ソニー株式会社 画像処理装置、および画像処理方法、並びにコンピュータ・プログラム
US8218653B2 (en) * 2008-03-31 2012-07-10 Sony Corporation Lossy frame memory compression using intra refresh
CN102113326A (zh) 2008-08-04 2011-06-29 杜比实验室特许公司 重叠块差异估计和补偿体系结构
KR101517100B1 (ko) * 2008-08-21 2015-05-15 삼성전자주식회사 동영상의 부호화 및 복호화를 위한 장치 및 방법
KR20100057388A (ko) * 2008-11-21 2010-05-31 삼성전자주식회사 버퍼 상태에 적응적인 영상 부호화 방법 및 장치, 영상 복호화 방법 및 장치
US8768082B2 (en) 2011-06-22 2014-07-01 Blackberry Limited Compressing image data
US8837582B2 (en) 2011-06-22 2014-09-16 Blackberry Limited Compressing image data
CN110121074B (zh) * 2019-04-25 2021-06-11 西安空间无线电技术研究所 一种性能预知的卫星图像大压缩方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU564770B2 (en) * 1981-07-17 1987-08-27 Nippon Electric Co. Ltd. Forward and inverse quantization by varying a reference step size
CA1212452A (en) * 1982-06-11 1986-10-07 Tokumichi Murakami Vector quantizer
JP2604371B2 (ja) * 1987-04-30 1997-04-30 日本電気株式会社 直交変換符号化装置
US4972260A (en) * 1988-08-22 1990-11-20 Matsushita Electric Industrial Co., Ltd. Apparatus for coding a moving-picture signal
JPH02119486A (ja) * 1988-10-28 1990-05-07 Nec Corp 動画像信号の符号化制御方法および符号化制御器
JPH02131038A (ja) * 1988-11-10 1990-05-18 Pioneer Electron Corp 信号伝送装置
JPH0797753B2 (ja) * 1989-01-24 1995-10-18 日本ビクター株式会社 符号化出力データ量の制御方式
CA2000156C (en) * 1989-02-14 1995-05-02 Kohtaro Asai Picture signal encoding and decoding apparatus
US5144426A (en) * 1989-10-13 1992-09-01 Matsushita Electric Industrial Co., Ltd. Motion compensated prediction interframe coding system
JP2830184B2 (ja) * 1989-10-14 1998-12-02 ソニー株式会社 映像信号符号化装置及び映像信号符号化方法
JPH03129987A (ja) * 1989-10-14 1991-06-03 Sony Corp 映像信号符号化装置及び映像信号符号化方法
JP3085465B2 (ja) * 1989-10-31 2000-09-11 オリンパス光学工業株式会社 画像データの符号化装置および符号化方法
EP0789494B1 (de) * 1989-12-25 2002-04-10 Mitsubishi Denki Kabushiki Kaisha Kodierungsgerät
US5146324A (en) * 1990-07-31 1992-09-08 Ampex Corporation Data compression using a feedforward quantization estimator
GB9022326D0 (en) * 1990-10-15 1990-11-28 British Telecomm Signal coding
US5150208A (en) * 1990-10-19 1992-09-22 Matsushita Electric Industrial Co., Ltd. Encoding apparatus
US5136377A (en) * 1990-12-11 1992-08-04 At&T Bell Laboratories Adaptive non-linear quantizer
US5122875A (en) * 1991-02-27 1992-06-16 General Electric Company An HDTV compression system
US5159447A (en) * 1991-05-23 1992-10-27 At&T Bell Laboratories Buffer control for variable bit-rate channel
US5144424A (en) * 1991-10-15 1992-09-01 Thomson Consumer Electronics, Inc. Apparatus for video data quantization control
JPH05167998A (ja) * 1991-12-16 1993-07-02 Nippon Telegr & Teleph Corp <Ntt> 画像の符号化制御処理方法

Also Published As

Publication number Publication date
KR940020836A (ko) 1994-09-16
ES2138647T3 (es) 2000-01-16
US5426463A (en) 1995-06-20
JPH06268986A (ja) 1994-09-22
DE69421636D1 (de) 1999-12-23
KR100327650B1 (ko) 2002-06-20
MX9401310A (es) 1994-08-31
JP3688730B2 (ja) 2005-08-31
EP0613306A2 (de) 1994-08-31
EP0613306A3 (de) 1995-09-20
EP0613306B1 (de) 1999-11-17
SG64871A1 (en) 1999-05-25

Similar Documents

Publication Publication Date Title
DE69421636T2 (de) Gerät zur Quantifizierungskontrolle innerhalb eines Videosignalkompressors
DE69521966D1 (de) Einrichtung zur Kodierung eines Videosignales bei Anwesenheit eines Leuchtdichtegradienten
DE69225621D1 (de) Vorrichtung zur Kodierung eines Videosignals
DE69426175T2 (de) Verarbeitungsgerät zur Nachführung eines Videosignals
DE69231194D1 (de) Verfahren zur Verbesserung eines Videosignals
DE69421868T2 (de) Verfahren und vorrichtung zur kodierung/dekodierung eines videosignals
DE69606887T2 (de) Verfahren zur analyse des inhaltes eines videosignals
DE69430684T2 (de) Gerät zur Aufzeichnung und Wiedergabe eines Videosignals
DE69422257T2 (de) Gerät zur Videosignalkompression unter Verwendung einer Rauschreduktion
DE69412431D1 (de) Vorrichtung zur Kodierung eines Videosignals
DE69033508T2 (de) Verfahren zur Dekodierung eines Videosignals
DE69636152D1 (de) Vorrichtung zur Dekodierung eines digitalen Signals
DE69423127D1 (de) System zur Verarbeitung eines Videosignals mit Bewegungsadaption
DE69318516D1 (de) Vorrichtung zur Grössenkontrolle eines digitalen Videosignalkodes
DE69610144D1 (de) Vorrichtung zum Darstellen eines Fernsehsignals
DE69420002T2 (de) Gerät zur Wiedergabe eines Videosignals
DE69421127T2 (de) Gerät zur Übertragung eines digitalen Bildsignals
DE59209551D1 (de) Filterschaltung zur Vorverarbeitung eines Videosignals
DE69421430D1 (de) Gerät zur Aufzeichnung eines Videosignals
DE69225922D1 (de) Gerät zur Einstellung eines wiedergegebenen Signals
DE59601910D1 (de) Verfahren zur kompression eines analogen signals
DE69210963D1 (de) Verfahren zur Bildkodierung eines Videosignals
DE69610151D1 (de) Schaltung zur vertikalen Kompression eines Kleinbildsignals
DE69333810D1 (de) Vorrichtung zur Wiedergabe eines Videosignals
DE69431072D1 (de) Vorrichtung zur komplexitätsbestimmung zum steuern der kodierung eines videosignals

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee