BE523631A - - Google Patents
Info
- Publication number
- BE523631A BE523631A BE523631DA BE523631A BE 523631 A BE523631 A BE 523631A BE 523631D A BE523631D A BE 523631DA BE 523631 A BE523631 A BE 523631A
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25162/53A GB733400A (en) | 1953-09-11 | 1953-09-11 | Improvements in or relating to subscription television system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE523631A true BE523631A (en:Method) | 1956-02-03 |
Family
ID=10223233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE523631D BE523631A (en:Method) | 1953-09-11 | 1953-10-19 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2770803A (en:Method) |
| BE (1) | BE523631A (en:Method) |
| CH (1) | CH329223A (en:Method) |
| DE (1) | DE1057166B (en:Method) |
| FR (1) | FR1089288A (en:Method) |
| GB (1) | GB733400A (en:Method) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2913518A (en) * | 1953-01-02 | 1959-11-17 | Zenith Radio Corp | Subscription television |
| US2916543A (en) * | 1956-05-29 | 1959-12-08 | Zenith Radio Corp | Secrecy communication system |
| US3042747A (en) * | 1956-11-16 | 1962-07-03 | Beltrami Aurelio | Electronic transmitting system |
| US2961482A (en) * | 1956-11-26 | 1960-11-22 | Paramount Pictures Corp | Cryptography system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB530776A (en) * | 1939-03-06 | 1940-12-20 | Scophony Ltd | Improvements in or relating to the secret transmission of television and like signals |
| US2402058A (en) * | 1941-06-25 | 1946-06-11 | Hazeltine Research Inc | Secrecy communication system |
| US2495727A (en) * | 1943-01-07 | 1950-01-31 | Hutchinson Henry Parks | Speech privacy apparatus |
| US2632799A (en) * | 1949-03-03 | 1953-03-24 | Zenith Radio Corp | Decoding apparatus for television receivers |
| US2656409A (en) * | 1949-03-15 | 1953-10-20 | Zenith Radio Corp | Subscriber signaling system |
| US2545770A (en) * | 1949-03-26 | 1951-03-20 | Zenith Radio Corp | Coded-signal receiver with revertive signaling |
| US2573349A (en) * | 1949-12-09 | 1951-10-30 | Zenith Radio Corp | Subscriber signaling system |
| US2636407A (en) * | 1951-06-29 | 1953-04-28 | George R Payne | Receptacle lid lifter with receptacle engaging means |
-
1951
- 1951-10-31 US US254099A patent/US2770803A/en not_active Expired - Lifetime
-
1953
- 1953-09-11 GB GB25162/53A patent/GB733400A/en not_active Expired
- 1953-10-13 FR FR1089288D patent/FR1089288A/fr not_active Expired
- 1953-10-15 DE DEZ3741A patent/DE1057166B/de active Pending
- 1953-10-19 BE BE523631D patent/BE523631A/xx unknown
- 1953-10-19 CH CH329223D patent/CH329223A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1057166B (de) | 1959-05-14 |
| GB733400A (en) | 1955-07-13 |
| FR1089288A (fr) | 1955-03-16 |
| CH329223A (de) | 1958-04-15 |
| US2770803A (en) | 1956-11-13 |