FR2433876A1 - Dispositif adaptateur permettant a un decodeur du systeme pal de decoder un signal du type ntsc - Google Patents

Dispositif adaptateur permettant a un decodeur du systeme pal de decoder un signal du type ntsc

Info

Publication number
FR2433876A1
FR2433876A1 FR7824014A FR7824014A FR2433876A1 FR 2433876 A1 FR2433876 A1 FR 2433876A1 FR 7824014 A FR7824014 A FR 7824014A FR 7824014 A FR7824014 A FR 7824014A FR 2433876 A1 FR2433876 A1 FR 2433876A1
Authority
FR
France
Prior art keywords
colour
decoder
subcarrier
pal
circuit
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Withdrawn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
FR7824014A
Other languages
English (en)
Inventor
Michel Vacher
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 FR7824014A priority Critical patent/FR2433876A1/fr
Publication of FR2433876A1 publication Critical patent/FR2433876A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
    • H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
    • H04N11/146—Decoding means therefor

Landscapes

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

Abstract

Dispositif adaptateur permettant à un décodeur PAL de décoder un signal NTSC. Il comprend : des moyens de commutation mettant hors circuit notamment la ligne à retard 26 et le déphasage 232 alterné de l'onde de réference appliquée à l'un des démodulateurs synchrones 230 et augmentant la pente de la dent de scie verticale et un circuit de transposition 10 transposant la sous-porteuse de couleur NTSC 3,58 MHz à la fréquence 4,43 MHz de la sous-porteuse de couleur PAL L'invention est applicable aux décodeurs, moniteurs et récepteurs de télévision en couleurs du système PAL
FR7824014A 1978-08-17 1978-08-17 Dispositif adaptateur permettant a un decodeur du systeme pal de decoder un signal du type ntsc Withdrawn FR2433876A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7824014A FR2433876A1 (fr) 1978-08-17 1978-08-17 Dispositif adaptateur permettant a un decodeur du systeme pal de decoder un signal du type ntsc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7824014A FR2433876A1 (fr) 1978-08-17 1978-08-17 Dispositif adaptateur permettant a un decodeur du systeme pal de decoder un signal du type ntsc

Publications (1)

Publication Number Publication Date
FR2433876A1 true FR2433876A1 (fr) 1980-03-14

Family

ID=9211884

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824014A Withdrawn FR2433876A1 (fr) 1978-08-17 1978-08-17 Dispositif adaptateur permettant a un decodeur du systeme pal de decoder un signal du type ntsc

Country Status (1)

Country Link
FR (1) FR2433876A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658284A (en) * 1984-01-11 1987-04-14 Canon Kabushiki Kaisha Image forming apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658284A (en) * 1984-01-11 1987-04-14 Canon Kabushiki Kaisha Image forming apparatus

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Legal Events

Date Code Title Description
ST Notification of lapse