JPS5671361A - Exchanging system for television conference telephone - Google Patents

Exchanging system for television conference telephone

Info

Publication number
JPS5671361A
JPS5671361A JP14742479A JP14742479A JPS5671361A JP S5671361 A JPS5671361 A JP S5671361A JP 14742479 A JP14742479 A JP 14742479A JP 14742479 A JP14742479 A JP 14742479A JP S5671361 A JPS5671361 A JP S5671361A
Authority
JP
Japan
Prior art keywords
audio
terminal
opposing
station
information
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
JP14742479A
Other languages
Japanese (ja)
Inventor
Yoshiaki Endo
Saburo Ikeda
Akinori Nakamura
Suzuo Uchiyama
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.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP14742479A priority Critical patent/JPS5671361A/en
Publication of JPS5671361A publication Critical patent/JPS5671361A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/567—Multimedia conference systems

Abstract

PURPOSE:To enable the information exchange for the remotely located parties each other as if said parties were at the conference together, by providing picture brancher and audio branching and mixing device with a relay station so that three or more terminal stations can mutually perform the communication of audio and video at the same time. CONSTITUTION:A relay station 4 is rovided with a video brancher 2 and an audio branch and mixer 3. Thus, as to picture, the video information of the terminal of the station itself is pictured on a TV screen of opposing station terminal, and either one of a plurality of opposing terminals is pictured on a TV screen of the terminal of the station itself. On the other hand, as to audio, the audio informaion of the terminal of the station itself is all fed to the opposing terminal, allowing to listen to the opposing party entirely, and the audio information listened to the itself is objective to the audio information transmitted with the terminal of opposing stations entirely. Thus, by the simultaneous communication of picture and audio mutually for three or more terminal stations, the information conversion the same as a conference held at the same location can be made for parties at remote locations.
JP14742479A 1979-11-14 1979-11-14 Exchanging system for television conference telephone Pending JPS5671361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14742479A JPS5671361A (en) 1979-11-14 1979-11-14 Exchanging system for television conference telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14742479A JPS5671361A (en) 1979-11-14 1979-11-14 Exchanging system for television conference telephone

Publications (1)

Publication Number Publication Date
JPS5671361A true JPS5671361A (en) 1981-06-13

Family

ID=15429995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14742479A Pending JPS5671361A (en) 1979-11-14 1979-11-14 Exchanging system for television conference telephone

Country Status (1)

Country Link
JP (1) JPS5671361A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6043954A (en) * 1983-08-22 1985-03-08 Nippon Telegr & Teleph Corp <Ntt> Tracking control system of communication picture among multi-point
JPS61179651A (en) * 1985-02-05 1986-08-12 Fujitsu Ltd Conference connection system
JPH01241959A (en) * 1988-03-23 1989-09-26 Fujitsu Ltd Communication system between multi-point

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6043954A (en) * 1983-08-22 1985-03-08 Nippon Telegr & Teleph Corp <Ntt> Tracking control system of communication picture among multi-point
JPS61179651A (en) * 1985-02-05 1986-08-12 Fujitsu Ltd Conference connection system
JPH01241959A (en) * 1988-03-23 1989-09-26 Fujitsu Ltd Communication system between multi-point

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