JPS56122556A - Transfer control system of switching control information - Google Patents

Transfer control system of switching control information

Info

Publication number
JPS56122556A
JPS56122556A JP2632880A JP2632880A JPS56122556A JP S56122556 A JPS56122556 A JP S56122556A JP 2632880 A JP2632880 A JP 2632880A JP 2632880 A JP2632880 A JP 2632880A JP S56122556 A JPS56122556 A JP S56122556A
Authority
JP
Japan
Prior art keywords
station
terminal
information
repeater
exr
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
JP2632880A
Other languages
Japanese (ja)
Inventor
Ryoichi Suzuki
Naohito Kataoka
Suzuo Uchiyama
Masanori Nakamura
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 JP2632880A priority Critical patent/JPS56122556A/en
Publication of JPS56122556A publication Critical patent/JPS56122556A/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

Abstract

PURPOSE:To easily transfer the control information in the course of communication, by providing a storage means of the same information and a storage information analytic means on plural terminal station equipments and repeater stations, respectively, and independently deciding and executing the processing which has been assigned to each station. CONSTITUTION:The television conference equipments TVCEA-TVCEC are installed in the terminal stations EXTA-EXTC, respectively, and each terminal station and the repeater station EXR are provided with the control units CONTA-CONTD for connection control. When the outgoing operation is executed by the equipment TVCEA, the outgoing terminal number and the incoming terminal number are stored in the memory by operation of the CONTA, and said information is sent out to the repeater station EXR. The EXR stores the outgoing and incoming terminal numbers, and a picture updating control right terminal number in the memory, and sends out the information to the terminal stations EXTB, EXTC. The terminating station stores in the memory the same information as that of the repeater station. The picture updating control right is assigned in advance to the originating terminal station, each station analyses and decides the stored information, and the terminal to which the control right has not been assigned decides that it is ineffective to update a picture, and suspends its execution.
JP2632880A 1980-03-03 1980-03-03 Transfer control system of switching control information Pending JPS56122556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2632880A JPS56122556A (en) 1980-03-03 1980-03-03 Transfer control system of switching control information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2632880A JPS56122556A (en) 1980-03-03 1980-03-03 Transfer control system of switching control information

Publications (1)

Publication Number Publication Date
JPS56122556A true JPS56122556A (en) 1981-09-26

Family

ID=12190345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2632880A Pending JPS56122556A (en) 1980-03-03 1980-03-03 Transfer control system of switching control information

Country Status (1)

Country Link
JP (1) JPS56122556A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529839A (en) * 1983-10-25 1985-07-16 At&T Bell Laboratories Multilocation video conference terminal including an arrangement to reduce disruption in video switching

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529839A (en) * 1983-10-25 1985-07-16 At&T Bell Laboratories Multilocation video conference terminal including an arrangement to reduce disruption in video switching

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