BE474239A - - Google Patents
Info
- Publication number
- BE474239A BE474239A BE474239DA BE474239A BE 474239 A BE474239 A BE 474239A BE 474239D A BE474239D A BE 474239DA BE 474239 A BE474239 A BE 474239A
- Authority
- BE
- Belgium
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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1015394T | 1947-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474239A true BE474239A (hu) |
Family
ID=9572985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474239D BE474239A (hu) | 1947-06-30 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE474239A (hu) |
| FR (1) | FR1015394A (hu) |
-
0
- BE BE474239D patent/BE474239A/xx unknown
-
1947
- 1947-06-30 FR FR1015394D patent/FR1015394A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1015394A (fr) | 1952-09-16 |