JPS5769359U - - Google Patents
Info
- Publication number
- JPS5769359U JPS5769359U JP1980146598U JP14659880U JPS5769359U JP S5769359 U JPS5769359 U JP S5769359U JP 1980146598 U JP1980146598 U JP 1980146598U JP 14659880 U JP14659880 U JP 14659880U JP S5769359 U JPS5769359 U JP S5769359U
- Authority
- JP
- Japan
- 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.)
- Granted
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
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980146598U JPS623973Y2 (en:Method) | 1980-10-15 | 1980-10-15 | |
| US06/311,061 US4517595A (en) | 1980-10-15 | 1981-10-13 | Pay television channel selector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980146598U JPS623973Y2 (en:Method) | 1980-10-15 | 1980-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5769359U true JPS5769359U (en:Method) | 1982-04-26 |
| JPS623973Y2 JPS623973Y2 (en:Method) | 1987-01-29 |
Family
ID=15411339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980146598U Expired JPS623973Y2 (en:Method) | 1980-10-15 | 1980-10-15 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4517595A (en:Method) |
| JP (1) | JPS623973Y2 (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4623919A (en) | 1983-08-11 | 1986-11-18 | Welch James D | Method and system for controlling access to transmitted modulated electromagnetic wave carried information |
| EP1982412A1 (en) * | 2006-01-27 | 2008-10-22 | Nxp B.V. | A receiver comprising two tuners |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3801915A (en) * | 1971-03-04 | 1974-04-02 | Magnavox Co | Method and apparatus for converting electrical signals |
| US3760097A (en) * | 1972-06-26 | 1973-09-18 | Hughes Aircraft Co | Adjacent catv channel jamming |
| IT1071589B (it) * | 1977-03-03 | 1985-04-10 | Indesit | Disposizione per generare una tensione di sintonia |
| US4232396A (en) * | 1978-07-14 | 1980-11-04 | Grimes Arnold S | Television channel lock-out apparatus |
-
1980
- 1980-10-15 JP JP1980146598U patent/JPS623973Y2/ja not_active Expired
-
1981
- 1981-10-13 US US06/311,061 patent/US4517595A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4517595A (en) | 1985-05-14 |
| JPS623973Y2 (en:Method) | 1987-01-29 |