JPS5694896A - Conference-type communication process system by loop transmission system - Google Patents

Conference-type communication process system by loop transmission system

Info

Publication number
JPS5694896A
JPS5694896A JP17368479A JP17368479A JPS5694896A JP S5694896 A JPS5694896 A JP S5694896A JP 17368479 A JP17368479 A JP 17368479A JP 17368479 A JP17368479 A JP 17368479A JP S5694896 A JPS5694896 A JP S5694896A
Authority
JP
Japan
Prior art keywords
channel
data
conference
loop transmission
persons
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
JP17368479A
Other languages
Japanese (ja)
Other versions
JPS6243581B2 (en
Inventor
Hiroaki Sato
Masataka Arai
Yoshio Nakano
Naofumi Nagai
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.)
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP17368479A priority Critical patent/JPS5694896A/en
Publication of JPS5694896A publication Critical patent/JPS5694896A/en
Publication of JPS6243581B2 publication Critical patent/JPS6243581B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems

Abstract

PURPOSE:To realize a conference-type call for three persons or more, by providing the channel exchange function to the master unit on the loop transmission line to exchange the data of N channel in the frame information with the M channel and then compounding the transmission data of three or more persons with use of a channel in the frame. CONSTITUTION:The loop transfer units 2-0-2-3 are connected by the loop transmission line 3-0, and the channel exchange function is given to the unit 2-0 functioning as the master station to exchange the data of N channel with the data of M channel. At the same time, the data transmitted through the N channel and the information given from the own transmitter microphones 10-1-10-3 are added and then sent to the line 3-0 by the data compounding parts 11-1-11-3 plus 13-1-13-3 which are provided at the units 2-1-2-3. And the data receiving parts 12-1-12-3 are connected to the telephone receivers 10-1-10-3. In such way, a conference- type call becomes possible among three persons or more.
JP17368479A 1979-12-27 1979-12-27 Conference-type communication process system by loop transmission system Granted JPS5694896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17368479A JPS5694896A (en) 1979-12-27 1979-12-27 Conference-type communication process system by loop transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17368479A JPS5694896A (en) 1979-12-27 1979-12-27 Conference-type communication process system by loop transmission system

Publications (2)

Publication Number Publication Date
JPS5694896A true JPS5694896A (en) 1981-07-31
JPS6243581B2 JPS6243581B2 (en) 1987-09-16

Family

ID=15965175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17368479A Granted JPS5694896A (en) 1979-12-27 1979-12-27 Conference-type communication process system by loop transmission system

Country Status (1)

Country Link
JP (1) JPS5694896A (en)

Also Published As

Publication number Publication date
JPS6243581B2 (en) 1987-09-16

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