JPS5491126A - Two-way itv system - Google Patents

Two-way itv system

Info

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
Application number
JP15906977A
Other languages
Japanese (ja)
Inventor
Yoshimi Yasukochi
Mikio Kokayu
Masakazu Higashimoto
Haruhiko Ishizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP15906977A priority Critical patent/JPS5491126A/en
Publication of JPS5491126A publication Critical patent/JPS5491126A/en
Pending legal-status Critical Current

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
JP15906977A 1977-12-28 1977-12-28 Two-way itv system Pending JPS5491126A (en)

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)

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