JPS4931809B1 - - Google Patents
Info
- Publication number
- JPS4931809B1 JPS4931809B1 JP44015454A JP1545469A JPS4931809B1 JP S4931809 B1 JPS4931809 B1 JP S4931809B1 JP 44015454 A JP44015454 A JP 44015454A JP 1545469 A JP1545469 A JP 1545469A JP S4931809 B1 JPS4931809 B1 JP S4931809B1
- 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.)
- Pending
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
-
- 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
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Circuits Of Receivers In General (AREA)
- Television Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE48550 | 1968-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4931809B1 true JPS4931809B1 (ja) | 1974-08-24 |
Family
ID=3840699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP44015454A Pending JPS4931809B1 (ja) | 1968-11-29 | 1969-03-03 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3597692A (ja) |
| JP (1) | JPS4931809B1 (ja) |
| DE (1) | DE1901106C3 (ja) |
| FR (1) | FR96203E (ja) |
| GB (1) | GB1222178A (ja) |
| IL (1) | IL31590A (ja) |
| NL (1) | NL6900317A (ja) |
| OA (1) | OA02977A (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3822363A (en) * | 1972-08-09 | 1974-07-02 | Digi Log Syst Inc | Portable computer terminal using a standard television receiver |
| US5253275A (en) | 1991-01-07 | 1993-10-12 | H. Lee Browne | Audio and video transmission and receiving system |
| US6609253B1 (en) * | 1999-12-30 | 2003-08-19 | Bellsouth Intellectual Property Corporation | Method and system for providing interactive media VCR control |
| JP2002334092A (ja) | 2001-05-11 | 2002-11-22 | Hitachi Ltd | 情報関連付け方法、情報閲覧装置、情報登録装置、情報検索装置、課金方法、およびプログラム |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1043232A (en) * | 1962-05-25 | 1966-09-21 | Communications Patents Ltd | Improved wired broadcasting systems and apparatus therefor |
| BE632218A (ja) * | 1963-05-31 | |||
| US3435358A (en) * | 1966-06-08 | 1969-03-25 | Anaconda Electronics Co | Cable television amplifier powering |
| US3366731A (en) * | 1967-08-11 | 1968-01-30 | Comm And Media Res Services In | Television distribution system permitting program substitution for selected viewers |
-
0
- FR FR181011A patent/FR96203E/fr not_active Expired
-
1969
- 1969-01-08 NL NL6900317A patent/NL6900317A/xx unknown
- 1969-01-10 DE DE1901106A patent/DE1901106C3/de not_active Expired
- 1969-01-16 OA OA53477A patent/OA02977A/xx unknown
- 1969-02-03 GB GB5676/69A patent/GB1222178A/en not_active Expired
- 1969-02-10 US US797838A patent/US3597692A/en not_active Expired - Lifetime
- 1969-02-10 IL IL31590A patent/IL31590A/en unknown
- 1969-03-03 JP JP44015454A patent/JPS4931809B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL6900317A (ja) | 1970-06-02 |
| DE1901106A1 (de) | 1970-07-02 |
| IL31590A0 (en) | 1969-04-30 |
| GB1222178A (en) | 1971-02-10 |
| FR96203E (fr) | 1972-05-19 |
| US3597692A (en) | 1971-08-03 |
| DE1901106B2 (de) | 1973-12-06 |
| DE1901106C3 (de) | 1974-07-04 |
| IL31590A (en) | 1973-11-28 |
| OA02977A (fr) | 1970-12-15 |