FR2399172A1 - Circuit de commande de commutation pour un demodulateur de couleur secam - Google Patents
Circuit de commande de commutation pour un demodulateur de couleur secamInfo
- 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
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.
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)
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)
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)
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 |
-
1977
- 1977-07-28 JP JP9064077A patent/JPS5923518B2/ja not_active Expired
-
1978
- 1978-07-28 FR FR7822460A patent/FR2399172A1/fr active Granted
Patent Citations (2)
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)
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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