BE817312A - Perfectionnements aux dispositifs de television par cables et relatifs a ceux-ci - Google Patents
Perfectionnements aux dispositifs de television par cables et relatifs a ceux-ciInfo
- Publication number
- BE817312A BE817312A BE146271A BE146271A BE817312A BE 817312 A BE817312 A BE 817312A BE 146271 A BE146271 A BE 146271A BE 146271 A BE146271 A BE 146271A BE 817312 A BE817312 A BE 817312A
- Authority
- BE
- Belgium
- Prior art keywords
- cable television
- television devices
- devices
- cable
- television
- Prior art date
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
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17345—Control of the passage of the selected programme
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17345—Control of the passage of the selected programme
- H04N7/17354—Control of the passage of the selected programme in an intermediate station common to a plurality of user terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N2007/1739—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream communication being transmitted via a separate link, e.g. telephone line
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Relay Circuits (AREA)
- Keying Circuit Devices (AREA)
- Interface Circuits In Exchanges (AREA)
- Radio Relay Systems (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3204773A GB1471145A (en) | 1974-07-01 | 1974-07-01 | Wired broadcasting systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE817312A true BE817312A (fr) | 1974-11-04 |
Family
ID=10332334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE146271A BE817312A (fr) | 1974-07-01 | 1974-07-05 | Perfectionnements aux dispositifs de television par cables et relatifs a ceux-ci |
Country Status (13)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2539939A1 (de) * | 1974-09-21 | 1976-04-08 | Communications Patents Ltd | Drahtfunksystem |
| US4068296A (en) * | 1976-06-30 | 1978-01-10 | General Electric Company | Control for remote control wiring system |
| US4176251A (en) * | 1978-05-15 | 1979-11-27 | Transcale A.B. | Modular switching system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1337676A (en) * | 1918-10-17 | 1920-04-20 | Western Electric Co | Telephone system |
| US1632012A (en) * | 1923-12-10 | 1927-06-14 | American Telephone & Telegraph | Program-selecting circuits |
| NL268865A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1960-09-01 | |||
| GB1051670A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1962-06-28 | |||
| US3381146A (en) * | 1967-08-04 | 1968-04-30 | Navy Usa | Trigger pulse circuit |
| US3614322A (en) * | 1969-09-22 | 1971-10-19 | Chester Electronic Lab Inc | System for selecting and reproducing perceptible programs |
-
1974
- 1974-07-01 GB GB3204773A patent/GB1471145A/en not_active Expired
- 1974-07-02 US US485065A patent/US3920906A/en not_active Expired - Lifetime
- 1974-07-03 DE DE2431897A patent/DE2431897C3/de not_active Expired
- 1974-07-03 CH CH909374A patent/CH566682A5/xx not_active IP Right Cessation
- 1974-07-04 NL NL7409082A patent/NL7409082A/xx not_active Application Discontinuation
- 1974-07-04 SE SE7408814A patent/SE399350B/xx unknown
- 1974-07-05 IT IT7451938A patent/IT1016319B/it active
- 1974-07-05 CA CA204,159A patent/CA1030072A/en not_active Expired
- 1974-07-05 IL IL7445198A patent/IL45198A/en unknown
- 1974-07-05 FR FR7424251A patent/FR2236328B1/fr not_active Expired
- 1974-07-05 JP JP49076519A patent/JPS5071204A/ja active Pending
- 1974-07-05 BE BE146271A patent/BE817312A/xx unknown
- 1974-07-05 ES ES74427992A patent/ES427992A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2236328A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-01-31 |
| IT1016319B (it) | 1977-05-30 |
| SE399350B (sv) | 1978-02-06 |
| CA1030072A (en) | 1978-04-25 |
| US3920906A (en) | 1975-11-18 |
| IL45198A (en) | 1977-04-29 |
| SE7408814L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-01-07 |
| DE2431897A1 (de) | 1975-01-30 |
| DE2431897B2 (de) | 1979-01-25 |
| NL7409082A (nl) | 1975-01-07 |
| DE2431897C3 (de) | 1979-09-27 |
| IL45198A0 (en) | 1974-10-22 |
| CH566682A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-09-15 |
| ES427992A1 (es) | 1976-08-16 |
| GB1471145A (en) | 1977-04-21 |
| JPS5071204A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-06-13 |
| FR2236328B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-03-24 |
| AU7087674A (en) | 1976-01-08 |
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