FR2392565A1 - Perfectionnements au traitement de signaux de television en couleurs - Google Patents

Perfectionnements au traitement de signaux de television en couleurs

Info

Publication number
FR2392565A1
FR2392565A1 FR7815425A FR7815425A FR2392565A1 FR 2392565 A1 FR2392565 A1 FR 2392565A1 FR 7815425 A FR7815425 A FR 7815425A FR 7815425 A FR7815425 A FR 7815425A FR 2392565 A1 FR2392565 A1 FR 2392565A1
Authority
FR
France
Prior art keywords
signal
colour
frequency band
adjacent lines
processing system
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.)
Withdrawn
Application number
FR7815425A
Other languages
English (en)
Inventor
Graham Dudley
David Charles Read
Simon John Auty
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.)
British Broadcasting Corp
Original Assignee
British Broadcasting 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
Priority claimed from GB2256777A external-priority patent/GB1568741A/en
Application filed by British Broadcasting Corp filed Critical British Broadcasting Corp
Publication of FR2392565A1 publication Critical patent/FR2392565A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Systems (AREA)

Abstract

L'invention concerne la télévision. Il est décrit un procédé de séparation de la composante de luminance d'un signal d'entrée composite de télévision en couleurs PAL, caractérisé par le fait que l'on fournit, avec chaque ligne en cours du signal d'entrée, une ligne de signal modifié dérivée de la bande de fréquence de chrominance de rune des lignes adjacentes à la ligne en cours ou de toutes les deux, modifiée par renversement de la phase de la composante V, et que l'on opère la soustraction du signal en cours et du signal modifié ou d'un signal dérivé de celui-ci, avec la même phase instantanée de la sous-porteuse de couleur instantanée pour obtenir un signal de luminance de sortie. Application : télévision en système PAL.
FR7815425A 1977-05-27 1978-05-24 Perfectionnements au traitement de signaux de television en couleurs Withdrawn FR2392565A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2256777A GB1568741A (en) 1977-05-27 1977-05-27 Processing of colour television signals
GB5166877 1977-12-12

Publications (1)

Publication Number Publication Date
FR2392565A1 true FR2392565A1 (fr) 1978-12-22

Family

ID=26255997

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7815425A Withdrawn FR2392565A1 (fr) 1977-05-27 1978-05-24 Perfectionnements au traitement de signaux de television en couleurs

Country Status (8)

Country Link
AU (1) AU517996B2 (fr)
DE (1) DE2822668A1 (fr)
FR (1) FR2392565A1 (fr)
IT (1) IT1094845B (fr)
NL (1) NL7805685A (fr)
NO (1) NO781781L (fr)
NZ (1) NZ186908A (fr)
SE (1) SE7806002L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015134A1 (fr) * 1979-02-19 1980-09-03 British Broadcasting Corporation Procédé et dispositif pour coder et décoder des signaux de télévision en couleur PAL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015134A1 (fr) * 1979-02-19 1980-09-03 British Broadcasting Corporation Procédé et dispositif pour coder et décoder des signaux de télévision en couleur PAL

Also Published As

Publication number Publication date
IT7823908A0 (it) 1978-05-26
NO781781L (no) 1978-11-28
DE2822668A1 (de) 1978-11-30
IT1094845B (it) 1985-08-10
NZ186908A (en) 1982-03-30
AU517996B2 (en) 1981-09-10
SE7806002L (sv) 1978-11-28
AU3506978A (en) 1979-10-18
NL7805685A (nl) 1978-11-29

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Legal Events

Date Code Title Description
ST Notification of lapse