FR2399172A1 - Circuit de commande de commutation pour un demodulateur de couleur secam - Google Patents

Circuit de commande de commutation pour un demodulateur de couleur secam

Info

Publication number
FR2399172A1
FR2399172A1 FR7822460A FR7822460A FR2399172A1 FR 2399172 A1 FR2399172 A1 FR 2399172A1 FR 7822460 A FR7822460 A FR 7822460A FR 7822460 A FR7822460 A FR 7822460A FR 2399172 A1 FR2399172 A1 FR 2399172A1
Authority
FR
France
Prior art keywords
colour
circuit
demodulator
switching
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.)
Granted
Application number
FR7822460A
Other languages
English (en)
Other versions
FR2399172B1 (fr
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.)
Sony Corp
Original Assignee
Sony 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
Application filed by Sony Corp filed Critical Sony Corp
Publication of FR2399172A1 publication Critical patent/FR2399172A1/fr
Application granted granted Critical
Publication of FR2399172B1 publication Critical patent/FR2399172B1/fr
Granted 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
    • H04N9/44—Colour synchronisation
    • H04N9/47—Colour synchronisation for sequential signals

Landscapes

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

Abstract

L'invention concerne la télévision en couleur. Un circuit de commande de commutation pour un démodulateur de couleur SECAM comprend essentiellement un détecteur d'identification de couleur 13 qui est branché en sortie de l'un des démodulateurs de couleur B-Y ou R-Y; une bascule 15 commandée par le détecteur 13 et les impulsions de synchronisation horizontale; et une porte OU 16 qui combine les impulsions de synchronisation horizontale et le signal de sortie de la porte 15, et qui attaque le circuit de commutation 5. Application aux récepteurs de télévision de type SECAM.
FR7822460A 1977-07-28 1978-07-28 Circuit de commande de commutation pour un demodulateur de couleur secam Granted FR2399172A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9064077A JPS5923518B2 (ja) 1977-07-28 1977-07-28 Ｓｅｃａｍ方式カラ−テレビジヨン受像機の色信号復調回路

Publications (2)

Publication Number Publication Date
FR2399172A1 true FR2399172A1 (fr) 1979-02-23
FR2399172B1 FR2399172B1 (fr) 1985-03-29

Family

ID=14004088

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7822460A Granted FR2399172A1 (fr) 1977-07-28 1978-07-28 Circuit de commande de commutation pour un demodulateur de couleur secam

Country Status (2)

Country Link
JP (1) JPS5923518B2 (fr)
FR (1) FR2399172A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436543A1 (fr) * 1978-09-13 1980-04-11 Tokyo Shibaura Electric Co Circuit permettant de detecter une separation anormale des signaux de chrominance dans le procede secam

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0628466B2 (ja) * 1983-10-15 1994-04-13 富士写真フイルム株式会社 信号再生装置
JPH01117432U (fr) * 1988-02-03 1989-08-08

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319263A1 (fr) * 1975-07-25 1977-02-18 Sony Corp Demodulateur de signaux de television en couleur secam
FR2408960A1 (fr) * 1977-11-15 1979-06-08 Thomson Csf Circuit d'identification des signaux de chrominance dans le systeme " secam " et recepteur de television comportant un tel circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319263A1 (fr) * 1975-07-25 1977-02-18 Sony Corp Demodulateur de signaux de television en couleur secam
FR2408960A1 (fr) * 1977-11-15 1979-06-08 Thomson Csf Circuit d'identification des signaux de chrominance dans le systeme " secam " et recepteur de television comportant un tel circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436543A1 (fr) * 1978-09-13 1980-04-11 Tokyo Shibaura Electric Co Circuit permettant de detecter une separation anormale des signaux de chrominance dans le procede secam

Also Published As

Publication number Publication date
JPS5923518B2 (ja) 1984-06-02
FR2399172B1 (fr) 1985-03-29
JPS5425116A (en) 1979-02-24

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