GB1524117A - Method for compressing then expanding a television signal - Google Patents

Method for compressing then expanding a television signal

Info

Publication number
GB1524117A
GB1524117A GB12157/76A GB1215776A GB1524117A GB 1524117 A GB1524117 A GB 1524117A GB 12157/76 A GB12157/76 A GB 12157/76A GB 1215776 A GB1215776 A GB 1215776A GB 1524117 A GB1524117 A GB 1524117A
Authority
GB
United Kingdom
Prior art keywords
track
signals
recorded
frequency
signal
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
GB12157/76A
Other languages
English (en)
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt SA
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 Thomson-Brandt SA filed Critical Thomson-Brandt SA
Publication of GB1524117A publication Critical patent/GB1524117A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/917—Television signal processing therefor for bandwidth reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H04N7/127—Systems in which different parts of the picture signal frequency band are individually processed, e.g. suppressed, transposed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/86—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded sequentially and simultaneously, e.g. corresponding to SECAM-system

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Optical Recording Or Reproduction (AREA)
GB12157/76A 1975-03-28 1976-03-25 Method for compressing then expanding a television signal Expired GB1524117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7509916A FR2305905A1 (fr) 1975-03-28 1975-03-28 Procede de compression-extension d'un signal de television, enregistrements et appareils utilisant ce procede

Publications (1)

Publication Number Publication Date
GB1524117A true GB1524117A (en) 1978-09-06

Family

ID=9153287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12157/76A Expired GB1524117A (en) 1975-03-28 1976-03-25 Method for compressing then expanding a television signal

Country Status (5)

Country Link
US (1) US4068258A (https=)
JP (1) JPS5278313A (https=)
DE (1) DE2612753A1 (https=)
FR (1) FR2305905A1 (https=)
GB (1) GB1524117A (https=)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5492015A (en) * 1977-12-29 1979-07-20 Matsushita Electric Ind Co Ltd Color television image receiving unit
DE2908321C2 (de) * 1979-03-03 1984-06-28 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und Schaltungsanordnung zum Übertragen oder Speichern eines breitbandigen kontinuierlichen Signals in mehreren schmalbandigen Kanälen
GB2048547B (en) * 1979-03-27 1983-03-30 Shibaura Denki Kk Video disc and playback system therefore
US4335393A (en) * 1980-04-15 1982-06-15 Harris Video Systems, Inc. Method and system using sequentially encoded color and luminance processing of video type signals to improve picture quality
US4347619A (en) * 1980-12-19 1982-08-31 Discovision Associates Digital formatting system
US4517597A (en) * 1982-09-14 1985-05-14 New York Institute Of Technology Method and apparatus for encoding and decoding video
US4652909A (en) * 1982-09-14 1987-03-24 New York Institute Of Technology Television camera and recording system for high definition television having imagers of different frame rate
US4628344A (en) * 1982-09-14 1986-12-09 New York Institute Of Technoloy Method and apparatus for encoding and decoding video
US4701783A (en) * 1982-09-14 1987-10-20 New York Institute Of Technology Technique for encoding and decoding video with improved separation of chrominance and luminance
US4667226A (en) * 1982-09-14 1987-05-19 New York Institute Of Technology High definition television camera system and method with optical switching
US4794464A (en) * 1986-09-02 1988-12-27 Eastman Kodak Company Video time division multiplexer with plural dual port memories
US5031218A (en) * 1988-03-30 1991-07-09 International Business Machines Corporation Redundant message processing and storage
US5025394A (en) * 1988-09-09 1991-06-18 New York Institute Of Technology Method and apparatus for generating animated images
US5032908A (en) * 1989-10-23 1991-07-16 Westinghouse Electric Corp. High definition television acoustic charge transport filter bank
US5146324A (en) * 1990-07-31 1992-09-08 Ampex Corporation Data compression using a feedforward quantization estimator
TW223690B (https=) * 1991-02-13 1994-05-11 Ampex
US5434623A (en) * 1991-12-20 1995-07-18 Ampex Corporation Method and apparatus for image data compression using combined luminance/chrominance coding
US5339108A (en) * 1992-04-09 1994-08-16 Ampex Corporation Ordering and formatting coded image data and reconstructing partial images from the data
DE4221683A1 (de) * 1992-07-02 1994-01-13 Philips Patentverwaltung Verfahren zur Datenübertragung
WO1995017747A1 (fr) * 1993-12-23 1995-06-29 Thomson-Csf Procede et systeme optiques d'inscription/lecture d'information sur un support d'enregistrement
FR2742911B1 (fr) * 1995-12-21 1998-02-06 Thomson Csf Support d'enregistrement/lecture optique d'informations et procede d'enregistrement
FR2787232B1 (fr) 1998-12-15 2001-02-23 Thomson Csf Disque d'enregistrement optique anti-piratage et procede de lecture d'un tel disque
US20060072780A1 (en) * 2004-09-30 2006-04-06 Zarrabizadeh Mohammad H Watermarking scheme for analog video

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629010A (en) * 1949-12-30 1953-02-17 Bell Telephone Labor Inc Television system having reduced transmission bandwidth
NL109556C (https=) * 1956-04-18
NL250453A (https=) * 1960-04-12
US3366739A (en) * 1964-09-30 1968-01-30 North American Rockwell Bandwidth reduction system for reconstituting non-transmitted signals from transmitted signals
US3614333A (en) * 1968-03-18 1971-10-19 Ampex Head mount for a magnetic disc recorder
DE2135759C3 (de) * 1970-07-20 1973-09-20 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka (Japan) System für die Aufzeichnung und Wiedergabe von Farbfernsehsignalen
US3869712A (en) * 1971-11-22 1975-03-04 Iit Res Inst Video playback system with flutter tolerant clamping
GB1431378A (en) * 1972-04-19 1976-04-07 Rca Corp Colour information translating systems
US3934264A (en) * 1974-02-04 1976-01-20 International Video Corporation Videotape recorder and reproducer every line velocity compensator apparatus

Also Published As

Publication number Publication date
JPS5278313A (en) 1977-07-01
US4068258A (en) 1978-01-10
FR2305905B1 (https=) 1981-06-19
DE2612753A1 (de) 1976-10-07
FR2305905A1 (fr) 1976-10-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee