JPS57178487A - Individual video recording, successive reproduction and image distribution system - Google Patents
Individual video recording, successive reproduction and image distribution systemInfo
- Publication number
- JPS57178487A JPS57178487A JP56064872A JP6487281A JPS57178487A JP S57178487 A JPS57178487 A JP S57178487A JP 56064872 A JP56064872 A JP 56064872A JP 6487281 A JP6487281 A JP 6487281A JP S57178487 A JPS57178487 A JP S57178487A
- Authority
- JP
- Japan
- Prior art keywords
- vtrrpj
- exchange
- subscriber
- image center
- video recording
- Prior art date
- 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
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To decrease the number of video recording and reproducing devices at an image center by previously transmitting all video-recorded columns from the image center to an exchange, and then selecting a column requested by a subscriber at the exchange. CONSTITUTION:When the reproduction period of a VTRRPj passes, connection with one of receivers, e.g. RECj is made and a new column is recorded on a VTR tape in the VTRRPj. Then, reproduction outputs of M' units of VTRRPj and those of M units of receivers RECi are all transmitted to an exchange by a transmitter TR. The TR outputs information, multiplexed corresponding to the capacity of a repeating transmission line TRL, by using an (M+M')-number of channels. In a subscribers house, on the other hand, a subscriber controller CNTa and a subscriber monitor device MONa are installed; a desired column is selectively reproduced by an input command from the CNTa and displayed on the MONa. In this constitution, the number of VTRs is proportional to that of programs and is independent of the number of subscribers, so the number of VTRs at an image center is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56064872A JPS57178487A (en) | 1981-04-27 | 1981-04-27 | Individual video recording, successive reproduction and image distribution system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56064872A JPS57178487A (en) | 1981-04-27 | 1981-04-27 | Individual video recording, successive reproduction and image distribution system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57178487A true JPS57178487A (en) | 1982-11-02 |
Family
ID=13270651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56064872A Pending JPS57178487A (en) | 1981-04-27 | 1981-04-27 | Individual video recording, successive reproduction and image distribution system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57178487A (en) |
-
1981
- 1981-04-27 JP JP56064872A patent/JPS57178487A/en active Pending
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