JPS5491126A - Two-way itv system - Google Patents
Two-way itv systemInfo
- Publication number
- JPS5491126A JPS5491126A JP15906977A JP15906977A JPS5491126A JP S5491126 A JPS5491126 A JP S5491126A JP 15906977 A JP15906977 A JP 15906977A JP 15906977 A JP15906977 A JP 15906977A JP S5491126 A JPS5491126 A JP S5491126A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- switches
- control
- itv
- terminal station
- 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
Landscapes
- Closed-Circuit Television Systems (AREA)
- Selective Calling Equipment (AREA)
Abstract
PURPOSE: To make it possible to perform picture transmission efficiently with restraining cost in a simple constitution by providing switch, which switches ITV cameras and monitor TVs, in each terminal station in the two-way ITV system.
CONSTITUTION: Each of two terminal stations 1 and 2 which perform transmission and receiving mutually is provided with ITV cameras 3 and 4, monitor TVs 5 and 6, switches 7 and 8 which switch ITV cameras and monitor TVs, and control parts 9 and 10 which control the switching of switches 7 and 8. Then, the switch of the terminal station in the control part side is switched by a control signal from one control part, and this control signal is transmitted to the other terminal station through control bus 16 to switch the switch of this station. As a result, the transmission direction of picture signals transmitted through picture transmission cable 15 which connects switches 7 and 8 can be switched freely mutually.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15906977A JPS5491126A (en) | 1977-12-28 | 1977-12-28 | Two-way itv system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15906977A JPS5491126A (en) | 1977-12-28 | 1977-12-28 | Two-way itv system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5491126A true JPS5491126A (en) | 1979-07-19 |
Family
ID=15685529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15906977A Pending JPS5491126A (en) | 1977-12-28 | 1977-12-28 | Two-way itv system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5491126A (en) |
-
1977
- 1977-12-28 JP JP15906977A patent/JPS5491126A/en active Pending
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