BE873611A - IMPROVEMENTS RELATED TO OR RELATED TO CABLE BROADCASTING DEVICES - Google Patents
IMPROVEMENTS RELATED TO OR RELATED TO CABLE BROADCASTING DEVICESInfo
- Publication number
- BE873611A BE873611A BE2057556A BE2057556A BE873611A BE 873611 A BE873611 A BE 873611A BE 2057556 A BE2057556 A BE 2057556A BE 2057556 A BE2057556 A BE 2057556A BE 873611 A BE873611 A BE 873611A
- Authority
- BE
- Belgium
- Prior art keywords
- cable broadcasting
- broadcasting devices
- devices
- improvements related
- cable
- 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
- H04N7/22—Adaptations for optical transmission
-
- 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)
- Optical Communication System (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2572/78A GB1586543A (en) | 1978-01-23 | 1978-01-23 | Wired broadcasting systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE873611A true BE873611A (en) | 1979-05-16 |
Family
ID=9741939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE2057556A BE873611A (en) | 1978-01-23 | 1979-01-22 | IMPROVEMENTS RELATED TO OR RELATED TO CABLE BROADCASTING DEVICES |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS54116105A (en) |
| AU (1) | AU4254878A (en) |
| BE (1) | BE873611A (en) |
| DE (1) | DE2900813A1 (en) |
| ES (1) | ES476249A1 (en) |
| FR (1) | FR2415404A1 (en) |
| GB (1) | GB1586543A (en) |
| IL (1) | IL56182A0 (en) |
| IT (1) | IT1158175B (en) |
| NL (1) | NL7900520A (en) |
| SE (1) | SE7900540L (en) |
| ZA (1) | ZA787225B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3013533A1 (en) * | 1980-04-08 | 1981-10-15 | Siemens Ag | CIRCUIT ARRANGEMENT WITH A LASER DIODE FOR TRANSMITTING MESSAGE SIGNALS VIA A LIGHT WAVE GUIDE |
| DE3224406A1 (en) * | 1981-07-01 | 1983-01-20 | Canon K.K., Tokyo | IMAGE TRANSFER SYSTEM |
| MY112412A (en) * | 1993-10-14 | 2001-06-30 | Nuchem Australia Pty Ltd | Multimedia enabled network. |
| GB2296169A (en) * | 1994-12-14 | 1996-06-19 | Metrovideo Ltd | Video transmission systems |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1306366A (en) * | 1969-05-22 | 1973-02-07 | ||
| GB1486421A (en) * | 1973-12-03 | 1977-09-21 | Communications Patents Ltd | Broadcast relay systems |
| FR2271727A1 (en) * | 1974-02-06 | 1975-12-12 | Radio Diffusion Tv Francaise | Cable television distribution system - has separate return channel from subscriber on telephone line to reduce noise |
| DE2603644C3 (en) * | 1976-01-30 | 1980-02-28 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Community antenna system |
-
1978
- 1978-01-23 GB GB2572/78A patent/GB1586543A/en not_active Expired
- 1978-12-11 IL IL56182A patent/IL56182A0/en unknown
- 1978-12-14 AU AU42548/78A patent/AU4254878A/en active Pending
- 1978-12-20 IT IT52382/78A patent/IT1158175B/en active
- 1978-12-21 ES ES476249A patent/ES476249A1/en not_active Expired
- 1978-12-21 ZA ZA00787225A patent/ZA787225B/en unknown
-
1979
- 1979-01-11 DE DE19792900813 patent/DE2900813A1/en not_active Withdrawn
- 1979-01-16 FR FR7901454A patent/FR2415404A1/en not_active Withdrawn
- 1979-01-22 SE SE7900540A patent/SE7900540L/en unknown
- 1979-01-22 BE BE2057556A patent/BE873611A/en unknown
- 1979-01-23 NL NL7900520A patent/NL7900520A/en not_active Application Discontinuation
- 1979-01-23 JP JP562179A patent/JPS54116105A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ZA787225B (en) | 1979-12-27 |
| JPS54116105A (en) | 1979-09-10 |
| AU4254878A (en) | 1979-08-02 |
| IL56182A0 (en) | 1979-03-12 |
| IT7852382A0 (en) | 1978-12-20 |
| SE7900540L (en) | 1979-07-24 |
| NL7900520A (en) | 1979-07-25 |
| DE2900813A1 (en) | 1979-07-26 |
| FR2415404A1 (en) | 1979-08-17 |
| IT1158175B (en) | 1987-02-18 |
| GB1586543A (en) | 1981-03-18 |
| ES476249A1 (en) | 1979-05-16 |
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