JPS5218120A - Interface circuit of tv telephone - Google Patents

Interface circuit of tv telephone

Info

Publication number
JPS5218120A
JPS5218120A JP9305575A JP9305575A JPS5218120A JP S5218120 A JPS5218120 A JP S5218120A JP 9305575 A JP9305575 A JP 9305575A JP 9305575 A JP9305575 A JP 9305575A JP S5218120 A JPS5218120 A JP S5218120A
Authority
JP
Japan
Prior art keywords
telephone
interface circuit
circuit
simplify
exchange
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.)
Granted
Application number
JP9305575A
Other languages
Japanese (ja)
Other versions
JPS5645474B2 (en
Inventor
Yoshiaki Nagayama
Toshio Kita
Yoshiichi Sano
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.)
Toshiba Corp
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Toshiba Corp
NEC Corp
Nippon Telegraph and Telephone Corp
Tokyo Shibaura Electric Co Ltd
Nippon 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 Toshiba Corp, NEC Corp, Nippon Telegraph and Telephone Corp, Tokyo Shibaura Electric Co Ltd, Nippon Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9305575A priority Critical patent/JPS5218120A/en
Publication of JPS5218120A publication Critical patent/JPS5218120A/en
Publication of JPS5645474B2 publication Critical patent/JPS5645474B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: In order to simplify the application of electronic circuit to TV telephone, through the circuit placement so as to effectively utilize a switch, in the interface circuit which reciprocally connects TV telephone with the exchange.
COPYRIGHT: (C)1977,JPO&Japio
JP9305575A 1975-08-01 1975-08-01 Interface circuit of tv telephone Granted JPS5218120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9305575A JPS5218120A (en) 1975-08-01 1975-08-01 Interface circuit of tv telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9305575A JPS5218120A (en) 1975-08-01 1975-08-01 Interface circuit of tv telephone

Publications (2)

Publication Number Publication Date
JPS5218120A true JPS5218120A (en) 1977-02-10
JPS5645474B2 JPS5645474B2 (en) 1981-10-26

Family

ID=14071811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9305575A Granted JPS5218120A (en) 1975-08-01 1975-08-01 Interface circuit of tv telephone

Country Status (1)

Country Link
JP (1) JPS5218120A (en)

Also Published As

Publication number Publication date
JPS5645474B2 (en) 1981-10-26

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