BE622309A - - Google Patents
Info
- Publication number
- BE622309A BE622309A BE622309A BE622309A BE622309A BE 622309 A BE622309 A BE 622309A BE 622309 A BE622309 A BE 622309A BE 622309 A BE622309 A BE 622309A BE 622309 A BE622309 A BE 622309A
- 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
-
- 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)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US151310A US3231818A (en) | 1961-11-09 | 1961-11-09 | Audio secrecy system for subscription television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE622309A true BE622309A (fr) | 1963-03-11 |
Family
ID=22538178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE622309A BE622309A (fr) | 1961-11-09 | 1962-09-10 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3231818A (fr) |
| BE (1) | BE622309A (fr) |
| DE (1) | DE1285513B (fr) |
| DK (1) | DK109339C (fr) |
| GB (1) | GB1019023A (fr) |
| NL (1) | NL282258A (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3506780A (en) * | 1964-08-31 | 1970-04-14 | Iit Res Inst | Signal transducer systems |
| US3530232A (en) * | 1966-06-17 | 1970-09-22 | Intern Telemeter Corp | Subscription television system |
| BE789101A (fr) * | 1971-09-28 | 1973-01-15 | Optical Systems Corp | Codeur, decodeur audio pour systeme de television sur antenne collective |
| US3916091A (en) * | 1973-01-31 | 1975-10-28 | Columbia Pictures Ind Inc | Electronic communications system for supplementary video program distribution |
| US3975585A (en) * | 1973-01-31 | 1976-08-17 | Columbia Pictures Industries, Inc. | Electronic communications system for supplementary video program distribution |
| US4148063A (en) * | 1977-04-28 | 1979-04-03 | Teleglobe Pay-Tv System, Inc. | Method and apparatus for encoding audio signals in television systems |
| US4638357A (en) * | 1984-01-20 | 1987-01-20 | Home Box Office, Inc. | Audio scrambler |
| US5063446A (en) * | 1989-08-11 | 1991-11-05 | General Electric Company | Apparatus for transmitting auxiliary signal in a TV channel |
| US5946047A (en) * | 1997-03-12 | 1999-08-31 | Hybrid Networks, Inc. | Network system for handling digital data over a TV channel |
| US5946048A (en) * | 1997-03-12 | 1999-08-31 | Hybrid Networks, Inc. | Network device for handling digital data over a TV channel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2418119A (en) * | 1943-04-10 | 1947-04-01 | Sperry Gyroscope Co Inc | Secret communication |
| US2414101A (en) * | 1943-06-04 | 1947-01-14 | Faximile Inc | Graphic privacy system |
| US2582968A (en) * | 1945-10-10 | 1952-01-22 | Standard Telephones Cables Ltd | Electrical pulse secrecy communication system |
| US2905747A (en) * | 1953-09-22 | 1959-09-22 | Rca Corp | Secrecy systems |
-
1961
- 1961-11-09 US US151310A patent/US3231818A/en not_active Expired - Lifetime
-
1962
- 1962-08-17 NL NL282258A patent/NL282258A/xx unknown
- 1962-09-04 DE DEP30124A patent/DE1285513B/de active Pending
- 1962-09-10 BE BE622309A patent/BE622309A/xx unknown
- 1962-09-10 DK DK395162AA patent/DK109339C/da active
- 1962-11-08 GB GB42300/62A patent/GB1019023A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1019023A (en) | 1966-02-02 |
| US3231818A (en) | 1966-01-25 |
| DE1285513B (de) | 1968-12-19 |
| NL282258A (fr) | 1964-12-28 |
| DK109339C (da) | 1968-04-16 |