DE3565200D1 - Circuit for coding and decoding a video signal coded by shifting the image signal relative to the synchronising signal - Google Patents
Circuit for coding and decoding a video signal coded by shifting the image signal relative to the synchronising signalInfo
- Publication number
- DE3565200D1 DE3565200D1 DE8585400590T DE3565200T DE3565200D1 DE 3565200 D1 DE3565200 D1 DE 3565200D1 DE 8585400590 T DE8585400590 T DE 8585400590T DE 3565200 T DE3565200 T DE 3565200T DE 3565200 D1 DE3565200 D1 DE 3565200D1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- decoding
- shifting
- coding
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/169—Systems operating in the time domain of the television signal
- H04N7/1693—Systems operating in the time domain of the television signal by displacing synchronisation signals relative to active picture signals or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8405043A FR2562365B1 (fr) | 1984-03-30 | 1984-03-30 | Circuits de codage et de decodage d'un signal video code par un decalage du signal d'image par rapport au signal de synchronisation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3565200D1 true DE3565200D1 (en) | 1988-10-27 |
Family
ID=9302658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8585400590T Expired DE3565200D1 (en) | 1984-03-30 | 1985-03-26 | Circuit for coding and decoding a video signal coded by shifting the image signal relative to the synchronising signal |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0160595B1 (de) |
DE (1) | DE3565200D1 (de) |
FR (1) | FR2562365B1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2634085A1 (fr) * | 1988-07-06 | 1990-01-12 | Radiotechnique Ind & Comm | Dispositif d'embrouillage ou de desembrouillage pour un systeme de television mac |
FR2637757B1 (fr) * | 1988-10-11 | 1990-11-16 | Cit Alcatel | Procede et dispositif de recalibrage des salves de chrominance d'un signal video de television couleur |
EP0673163A1 (de) * | 1993-04-05 | 1995-09-20 | South African Micro-Electronic Systems (Proprietary) Limited | Verfahren und Vorrichtung zur Kodierung und Dekodierung von Signalen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4074307A (en) * | 1975-08-14 | 1978-02-14 | Rca Corporation | Signal processor using charge-coupled devices |
FR2330236A1 (fr) * | 1975-11-03 | 1977-05-27 | France Etat | Un procede de cryptage et de decryptage d'emissions de television et des circuits mettant en oeuvre ce procede |
FR2524241A1 (fr) * | 1982-03-24 | 1983-09-30 | Radiotechnique | Circuit de commande du dispositif de decryptage d'un systeme de transmission d'emissions de television cryptees et systeme de transmission d'emissions cryptees comportant un tel circuit |
-
1984
- 1984-03-30 FR FR8405043A patent/FR2562365B1/fr not_active Expired
-
1985
- 1985-03-26 EP EP19850400590 patent/EP0160595B1/de not_active Expired
- 1985-03-26 DE DE8585400590T patent/DE3565200D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2562365A1 (fr) | 1985-10-04 |
EP0160595A1 (de) | 1985-11-06 |
FR2562365B1 (fr) | 1988-02-05 |
EP0160595B1 (de) | 1988-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |