DE3062525D1 - Device for coding and decoding a digital videophone signal - Google Patents

Device for coding and decoding a digital videophone signal

Info

Publication number
DE3062525D1
DE3062525D1 DE8080401030T DE3062525T DE3062525D1 DE 3062525 D1 DE3062525 D1 DE 3062525D1 DE 8080401030 T DE8080401030 T DE 8080401030T DE 3062525 T DE3062525 T DE 3062525T DE 3062525 D1 DE3062525 D1 DE 3062525D1
Authority
DE
Germany
Prior art keywords
decoding
coding
videophone signal
digital videophone
digital
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
Application number
DE8080401030T
Other languages
English (en)
Inventor
Jean Pierre Temime
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE3062525D1 publication Critical patent/DE3062525D1/de
Expired 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
    • 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
    • H04N19/146—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
    • H04N19/50—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
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
DE8080401030T 1979-07-09 1980-07-08 Device for coding and decoding a digital videophone signal Expired DE3062525D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7917798A FR2461405A1 (fr) 1979-07-09 1979-07-09 Systeme de codage et de decodage d'un signal visiophonique numerique

Publications (1)

Publication Number Publication Date
DE3062525D1 true DE3062525D1 (en) 1983-05-05

Family

ID=9227686

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080401030T Expired DE3062525D1 (en) 1979-07-09 1980-07-08 Device for coding and decoding a digital videophone signal

Country Status (5)

Country Link
US (1) US4369464A (de)
EP (1) EP0022713B1 (de)
JP (1) JPS5656081A (de)
DE (1) DE3062525D1 (de)
FR (1) FR2461405A1 (de)

Families Citing this family (32)

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US4965825A (en) 1981-11-03 1990-10-23 The Personalized Mass Media Corporation Signal processing apparatus and methods
US7831204B1 (en) 1981-11-03 2010-11-09 Personalized Media Communications, Llc Signal processing apparatus and methods
USRE47642E1 (en) 1981-11-03 2019-10-08 Personalized Media Communications LLC Signal processing apparatus and methods
US4488174A (en) * 1982-06-01 1984-12-11 International Business Machines Corporation Method for eliminating motion induced flicker in a video image
US4494144A (en) * 1982-06-28 1985-01-15 At&T Bell Laboratories Reduced bandwidth video transmission
FR2543384A1 (fr) * 1983-03-22 1984-09-28 Thomson Csf Procede de codage adaptatif, et de decodage, d'une image de television, et dispositifs pour la mise en oeuvre de ce procede
GB8407764D0 (en) * 1984-03-26 1984-05-02 Indep Broadcasting Authority Local movement detector
US4862264A (en) * 1985-12-24 1989-08-29 British Broadcasting Corporation Method of coding a video signal for transmission in a restricted bandwidth
FR2599201A1 (fr) * 1986-05-23 1987-11-27 Trt Telecom Radio Electr Dispositif de codage a modulation differentielle par impulsions codees, dispositif de decodage associe et systeme de transmission comportant au moins un tel dispositif de codage ou de decodage
JPS63190473A (ja) * 1986-09-25 1988-08-08 Nippon Board Computer Kk 多階調画像デ−タの情報量圧縮方法及び装置
AU616688B2 (en) * 1987-08-28 1991-11-07 British Telecommunications Public Limited Company Video signal movement matrix coding
JPS6477391A (en) * 1987-09-18 1989-03-23 Victor Company Of Japan System and device for predictive coding
GB8724789D0 (en) * 1987-10-19 1987-11-25 British Telecomm Signal coding
US4951140A (en) * 1988-02-22 1990-08-21 Kabushiki Kaisha Toshiba Image encoding apparatus
US4888640A (en) * 1988-05-16 1989-12-19 General Electric Company Refresh system for digital signals
GB2222338B (en) * 1988-08-27 1992-11-04 Plessey Co Plc Remote operated vehicle control
WO1990008443A1 (en) * 1989-01-16 1990-07-26 Zeevi Yehoshua Y Video imaging system
FR2653953A1 (fr) * 1989-10-27 1991-05-03 Philips Electronique Lab Dispositif de codage comportant un codeur a mots de longueur variable et dispositif de decodage associe.
US5303372A (en) * 1991-06-24 1994-04-12 Picker International, Inc. Pipelined image data compression system
JP3133517B2 (ja) * 1992-10-15 2001-02-13 シャープ株式会社 画像領域検出装置、該画像検出装置を用いた画像符号化装置
JPH0865665A (ja) * 1994-08-25 1996-03-08 Hitachi Denshi Ltd 画像圧縮伝送方法および画像圧縮伝送システム
US20010002851A1 (en) * 1995-04-14 2001-06-07 Takao Shimada Multimedia data processing system in network
GB2371638A (en) * 2001-01-24 2002-07-31 Hewlett Packard Co Base station with data storage
US7321623B2 (en) * 2002-10-01 2008-01-22 Avocent Corporation Video compression system
US20060126718A1 (en) * 2002-10-01 2006-06-15 Avocent Corporation Video compression encoder
US7827458B1 (en) * 2003-03-03 2010-11-02 Apple Inc. Packet loss error recovery
US9560371B2 (en) * 2003-07-30 2017-01-31 Avocent Corporation Video compression system
US7457461B2 (en) * 2004-06-25 2008-11-25 Avocent Corporation Video compression noise immunity
US8718147B2 (en) * 2006-02-17 2014-05-06 Avocent Huntsville Corporation Video compression algorithm
US7555570B2 (en) 2006-02-17 2009-06-30 Avocent Huntsville Corporation Device and method for configuring a target device
CA2650663A1 (en) * 2006-04-28 2007-11-08 Avocent Corporation Dvc delta commands
US8456380B2 (en) * 2008-05-15 2013-06-04 International Business Machines Corporation Processing computer graphics generated by a remote computer for streaming to a client computer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439753A (en) * 1966-04-19 1969-04-22 Bell Telephone Labor Inc Reduced bandwidth pulse modulation scheme using dual mode encoding in selected sub-block sampling periods
JPS5220091B2 (de) * 1972-08-23 1977-06-01
GB1511647A (en) * 1974-08-02 1978-05-24 Post Office Digital television system
GB2003001A (en) * 1977-08-16 1979-02-28 Dennis T Improvements in methods and apparatus for coding digital television signals

Also Published As

Publication number Publication date
FR2461405B1 (de) 1984-02-17
EP0022713B1 (de) 1983-03-30
FR2461405A1 (fr) 1981-01-30
JPS5656081A (en) 1981-05-16
EP0022713A1 (de) 1981-01-21
US4369464A (en) 1983-01-18

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Free format text: ERFINDER IST ANMELDER

8339 Ceased/non-payment of the annual fee