BE519070A - - Google Patents
Info
- Publication number
- BE519070A BE519070A BE519070DA BE519070A BE 519070 A BE519070 A BE 519070A BE 519070D A BE519070D A BE 519070DA BE 519070 A BE519070 A BE 519070A
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Studio Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US281418A US2843656A (en) | 1952-04-09 | 1952-04-09 | Subscription television system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE519070A true BE519070A (instruction) |
Family
ID=23077210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE519070D BE519070A (instruction) | 1952-04-09 |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US2843656A (instruction) |
| BE (1) | BE519070A (instruction) |
| CH (1) | CH327544A (instruction) |
| DE (1) | DE946350C (instruction) |
| FR (1) | FR1082671A (instruction) |
| GB (1) | GB735541A (instruction) |
| NL (1) | NL111778C (instruction) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3274333A (en) * | 1952-10-23 | 1966-09-20 | Skiatron Elect & Tele | Scrambled television system |
| US2912486A (en) * | 1955-01-12 | 1959-11-10 | Skiatron Elect & Tele | Subscription television system |
| US3106604A (en) * | 1955-01-12 | 1963-10-08 | Skiatron Elect & Tele | Multiple code subscription television system |
| US2994739A (en) * | 1955-04-13 | 1961-08-01 | Zenith Radio Corp | Subscription television receiver and method of operating the same |
| US3001011A (en) * | 1958-06-16 | 1961-09-19 | Paramount Pictures Corp | Subscription television system |
| US3011016A (en) * | 1959-06-29 | 1961-11-28 | Zenith Radio Corp | Subscription receiver |
| US3478166A (en) * | 1963-09-09 | 1969-11-11 | Intern Telemeter Corp | Cryptographic subscription television system with grey sync and dual mode augmenting signals |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2405252A (en) * | 1942-07-22 | 1946-08-06 | Rca Corp | Secret communication system |
| US2472774A (en) * | 1945-10-17 | 1949-06-07 | Farnsworth Res Corp | Irregular interlace scanning system |
| US2521010A (en) * | 1945-12-29 | 1950-09-05 | John H Homrighous | Television system |
| US2543116A (en) * | 1946-07-08 | 1951-02-27 | Bell Telephone Labor Inc | Means and method for the secret transmission of message intelligence |
| US2510046A (en) * | 1947-04-18 | 1950-05-30 | Zenith Radio Corp | Radio-wire signaling system |
| US2547598A (en) * | 1947-09-13 | 1951-04-03 | Zenith Radio Corp | Subscription image transmission system and apparatus |
| IT454079A (instruction) * | 1948-07-02 | |||
| FR1003982A (instruction) * | 1948-12-24 | |||
| US2656407A (en) * | 1949-02-12 | 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 |
| FR987599A (fr) * | 1949-04-06 | 1951-08-16 | Radioelectriques Lab | Dispositif de téléphonie secrète |
| US2531974A (en) * | 1949-04-07 | 1950-11-28 | Zenith Radio Corp | Subscription type television transmitter |
-
0
- BE BE519070D patent/BE519070A/xx unknown
- NL NL111778D patent/NL111778C/xx active
- US US25837D patent/USRE25837E/en not_active Expired
-
1952
- 1952-04-09 US US281418A patent/US2843656A/en not_active Expired - Lifetime
-
1953
- 1953-03-31 GB GB8904/53A patent/GB735541A/en not_active Expired
- 1953-04-09 DE DEZ3370A patent/DE946350C/de not_active Expired
- 1953-04-09 CH CH327544D patent/CH327544A/de unknown
- 1953-04-09 FR FR1082671D patent/FR1082671A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| USRE25837E (en) | 1965-08-10 |
| CH327544A (de) | 1958-01-31 |
| FR1082671A (fr) | 1954-12-31 |
| GB735541A (en) | 1955-08-24 |
| NL111778C (instruction) | |
| DE946350C (de) | 1956-08-02 |
| US2843656A (en) | 1958-07-15 |