FR2302645A1 - Procede d - Google Patents

Procede d

Info

Publication number
FR2302645A1
FR2302645A1 FR7506255A FR7506255A FR2302645A1 FR 2302645 A1 FR2302645 A1 FR 2302645A1 FR 7506255 A FR7506255 A FR 7506255A FR 7506255 A FR7506255 A FR 7506255A FR 2302645 A1 FR2302645 A1 FR 2302645A1
Authority
FR
France
Prior art keywords
signal
video
disc
elements
expansion
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.)
Granted
Application number
FR7506255A
Other languages
English (en)
Other versions
FR2302645B1 (fr
Inventor
Georges Broussaud
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
Priority to FR7506255A priority Critical patent/FR2302645A1/fr
Publication of FR2302645A1 publication Critical patent/FR2302645A1/fr
Application granted granted Critical
Publication of FR2302645B1 publication Critical patent/FR2302645B1/fr
Granted 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
    • H04N7/122—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 involving expansion and subsequent compression of a signal segment, e.g. a frame, a line
    • H04N7/125—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 involving expansion and subsequent compression of a signal segment, e.g. a frame, a line the signal segment being a picture element

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
FR7506255A 1975-02-28 1975-02-28 Procede d Granted FR2302645A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7506255A FR2302645A1 (fr) 1975-02-28 1975-02-28 Procede d

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7506255A FR2302645A1 (fr) 1975-02-28 1975-02-28 Procede d

Publications (2)

Publication Number Publication Date
FR2302645A1 true FR2302645A1 (fr) 1976-09-24
FR2302645B1 FR2302645B1 (fr) 1977-09-23

Family

ID=9151878

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7506255A Granted FR2302645A1 (fr) 1975-02-28 1975-02-28 Procede d

Country Status (1)

Country Link
FR (1) FR2302645A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2613165A1 (fr) * 1987-03-24 1988-09-30 Labo Electronique Physique Systeme de transmission d'images de television a haute definition par un canal a bande passante etroite
FR2613166A1 (fr) * 1987-03-24 1988-09-30 Labo Electronique Physique Dispositif de transmission d'images a haute definition par un canal a bande passante relativement etroite

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2026436A1 (de) * 1969-12-05 1971-06-16 Zanussi A Spa Industrie Verfahren und Vorrichtung zur Aufzeich nung und Wiedergabe von Videosignalen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2026436A1 (de) * 1969-12-05 1971-06-16 Zanussi A Spa Industrie Verfahren und Vorrichtung zur Aufzeich nung und Wiedergabe von Videosignalen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2613165A1 (fr) * 1987-03-24 1988-09-30 Labo Electronique Physique Systeme de transmission d'images de television a haute definition par un canal a bande passante etroite
FR2613166A1 (fr) * 1987-03-24 1988-09-30 Labo Electronique Physique Dispositif de transmission d'images a haute definition par un canal a bande passante relativement etroite
EP0285207A1 (fr) * 1987-03-24 1988-10-05 Laboratoires D'electronique Philips Système de transmission d'images à haute définition par un canal à bande passante relativement étroite, ainsi qu'un émetteur et un récepteur convenant pour le systéme
EP0286157A1 (fr) * 1987-03-24 1988-10-12 Laboratoires D'electronique Philips Système de transmission d'images de télévision à haute définition par un canal à bande passante étroite, ainsi qu'un émetteur et un récepteur convenant pour le système
US4922342A (en) * 1987-03-24 1990-05-01 U.S. Philips Corporation System of transmitting high-definition television pictures via a narrow-passband channel
US4935813A (en) * 1987-03-24 1990-06-19 U.S. Philips Corporation System of transmitting high-definition television pictures via a relatively narrow passband channel, and also a transmitter and a receiver suitable for the system

Also Published As

Publication number Publication date
FR2302645B1 (fr) 1977-09-23

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Legal Events

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