JPS5783949A - Telephone conference system by packet communication - Google Patents

Telephone conference system by packet communication

Info

Publication number
JPS5783949A
JPS5783949A JP55158121A JP15812180A JPS5783949A JP S5783949 A JPS5783949 A JP S5783949A JP 55158121 A JP55158121 A JP 55158121A JP 15812180 A JP15812180 A JP 15812180A JP S5783949 A JPS5783949 A JP S5783949A
Authority
JP
Japan
Prior art keywords
conferees
terminal
time
circuit
decoder
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
JP55158121A
Other languages
Japanese (ja)
Inventor
Kazuo Murano
Yoshihiro Tomita
Fumio Amano
Masami Koshikawa
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
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55158121A priority Critical patent/JPS5783949A/en
Publication of JPS5783949A publication Critical patent/JPS5783949A/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
    • H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

PURPOSE:To prevent an switchboard side from being loaded even if conferees increase in number, by performing processing for telephone conference at every terminal. CONSTITUTION:A voice signal is converted by a decoder into a digital signal, which is packeted by a packeting circuit and, after time data is inserted by a time inserting circuit, sent to a packet switching network, thereby performing simultaneous multiple-address transmission to other conferees. At the reception part of each terminal, packets from another conferee are received by a packet buffer 6 and arranged by a time-order arranging circuit 7 according to transmission time; and they are added by an adder 8 to generate a synthesized sound, which is reconverted by a decoder 9 into an analog signal to be supplied to a handset. Consequently, processing for conference is performed only in each terminal, so that even if conferees increase in number, that never increases a load on a switchboard.
JP55158121A 1980-11-12 1980-11-12 Telephone conference system by packet communication Pending JPS5783949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55158121A JPS5783949A (en) 1980-11-12 1980-11-12 Telephone conference system by packet communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55158121A JPS5783949A (en) 1980-11-12 1980-11-12 Telephone conference system by packet communication

Publications (1)

Publication Number Publication Date
JPS5783949A true JPS5783949A (en) 1982-05-26

Family

ID=15664752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55158121A Pending JPS5783949A (en) 1980-11-12 1980-11-12 Telephone conference system by packet communication

Country Status (1)

Country Link
JP (1) JPS5783949A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6342262A (en) * 1986-08-07 1988-02-23 Nec Corp Packet conference switching system
JPS6370652A (en) * 1986-09-12 1988-03-30 Nec Corp Packet conference exchange system
JPH0282838A (en) * 1988-09-20 1990-03-23 Nippon Telegr & Teleph Corp <Ntt> Multi-location video conference system
JPH0294731A (en) * 1988-09-30 1990-04-05 Nippon Telegr & Teleph Corp <Ntt> Multi-point information transmission system
JP2008099314A (en) * 2007-11-07 2008-04-24 Fujitsu Ltd Server and method for sound signal collection and distribution
JP2008159034A (en) * 2007-11-07 2008-07-10 Fujitsu Ltd Server and voice signal collection/distribution method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6342262A (en) * 1986-08-07 1988-02-23 Nec Corp Packet conference switching system
JPS6370652A (en) * 1986-09-12 1988-03-30 Nec Corp Packet conference exchange system
JPH0282838A (en) * 1988-09-20 1990-03-23 Nippon Telegr & Teleph Corp <Ntt> Multi-location video conference system
JPH0294731A (en) * 1988-09-30 1990-04-05 Nippon Telegr & Teleph Corp <Ntt> Multi-point information transmission system
JP2008099314A (en) * 2007-11-07 2008-04-24 Fujitsu Ltd Server and method for sound signal collection and distribution
JP2008159034A (en) * 2007-11-07 2008-07-10 Fujitsu Ltd Server and voice signal collection/distribution method

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