JPS5694895A - Conference-type communication process system - Google Patents

Conference-type communication process system

Info

Publication number
JPS5694895A
JPS5694895A JP17368379A JP17368379A JPS5694895A JP S5694895 A JPS5694895 A JP S5694895A JP 17368379 A JP17368379 A JP 17368379A JP 17368379 A JP17368379 A JP 17368379A JP S5694895 A JPS5694895 A JP S5694895A
Authority
JP
Japan
Prior art keywords
information
channels
conference
frame
data
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
JP17368379A
Other languages
Japanese (ja)
Other versions
JPS6243580B2 (en
Inventor
Hiroaki Sato
Hideo Fukazawa
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 JP17368379A priority Critical patent/JPS5694895A/en
Publication of JPS5694895A publication Critical patent/JPS5694895A/en
Publication of JPS6243580B2 publication Critical patent/JPS6243580B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

PURPOSE:To realize a conference-type call for three persons or more via the single channel in a frame, by providing an attenuator at the single channel in the frame information and adding a data compounding part to each channel to add the own- generated information to the information given from other channels. CONSTITUTION:The loop transmission units 2-0-2-3 are connected by the loop transmission lines 3-0, and the attenuator LOSS is provided to the unit 2-0 which functions as the master station. At the same time, the data compounding parts 11-1-11-3 plus 12-1-12-3 are added to the units 2-1-2-3 to add the information of the own transmitter microphones 9-1-9-3 to the other information of other channels. Furthermore, the compound data receiving parts 12-1-12-3 are connected to the telephone receivers 10-1-10-3. Then the transmission of the frame information are given to N channels, and the data of the N channels can be attenuated by the attenuator LOSS. Thus a conference-type call becomes possible for three persons or more with use of the single channel in the frame.
JP17368379A 1979-12-27 1979-12-27 Conference-type communication process system Granted JPS5694895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17368379A JPS5694895A (en) 1979-12-27 1979-12-27 Conference-type communication process system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17368379A JPS5694895A (en) 1979-12-27 1979-12-27 Conference-type communication process system

Publications (2)

Publication Number Publication Date
JPS5694895A true JPS5694895A (en) 1981-07-31
JPS6243580B2 JPS6243580B2 (en) 1987-09-16

Family

ID=15965156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17368379A Granted JPS5694895A (en) 1979-12-27 1979-12-27 Conference-type communication process system

Country Status (1)

Country Link
JP (1) JPS5694895A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59154959U (en) * 1983-04-04 1984-10-17 アンリツ株式会社 Conference call circuit in loop transmission line
JPH04120830A (en) * 1989-12-22 1992-04-21 Alcatel Nv Method and device for establishing conversation conference relation among small number of plurality of node and large number of plurality of node selected in network

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59154959U (en) * 1983-04-04 1984-10-17 アンリツ株式会社 Conference call circuit in loop transmission line
JPH04120830A (en) * 1989-12-22 1992-04-21 Alcatel Nv Method and device for establishing conversation conference relation among small number of plurality of node and large number of plurality of node selected in network

Also Published As

Publication number Publication date
JPS6243580B2 (en) 1987-09-16

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