CA1027265A - Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system - Google Patents

Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system

Info

Publication number
CA1027265A
CA1027265A CA225,276A CA225276A CA1027265A CA 1027265 A CA1027265 A CA 1027265A CA 225276 A CA225276 A CA 225276A CA 1027265 A CA1027265 A CA 1027265A
Authority
CA
Canada
Prior art keywords
establishing
switching system
pcm switching
simultaneous conferences
conferences
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.)
Expired
Application number
CA225,276A
Other languages
English (en)
French (fr)
Other versions
CA225276S (en
Inventor
Alan S.J. Chapman
Scott A. Inrig
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.)
Nortel Networks Ltd
Original Assignee
Northern 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 Northern Electric Co Ltd filed Critical Northern Electric Co Ltd
Priority to CA225,276A priority Critical patent/CA1027265A/en
Priority to GB13469/76A priority patent/GB1529106A/en
Priority to IT22482/76A priority patent/IT1059227B/it
Priority to NO761343A priority patent/NO761343L/no
Priority to JP51044518A priority patent/JPS5916459B2/ja
Priority to DE2617344A priority patent/DE2617344C2/de
Priority to IE854/76A priority patent/IE43367B1/en
Priority to NL7604258A priority patent/NL7604258A/xx
Priority to DK181676A priority patent/DK156866C/da
Priority to SE7604727A priority patent/SE420556B/xx
Priority to BE166445A priority patent/BE841099A/xx
Priority to FR7612173A priority patent/FR2309086A1/fr
Priority to ES447276A priority patent/ES447276A1/es
Application granted granted Critical
Publication of CA1027265A publication Critical patent/CA1027265A/en
Expired 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
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
CA225,276A 1975-04-23 1975-04-23 Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system Expired CA1027265A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
CA225,276A CA1027265A (en) 1975-04-23 1975-04-23 Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system
GB13469/76A GB1529106A (en) 1975-04-23 1976-04-02 Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system
IT22482/76A IT1059227B (it) 1975-04-23 1976-04-20 Metodo ed appara o per stabilire una pluralita di conferenze simultanee in un sistema di commutazione a modulazoone impulsiva codificata
JP51044518A JPS5916459B2 (ja) 1975-04-23 1976-04-21 Ｐｃｍスイッチングシステムにおいて複数の会議を同時に実現する装置
DE2617344A DE2617344C2 (de) 1975-04-23 1976-04-21 Verfahren zur Herstellung mehrerer, gleichzeitiger Konferenzverbindungen in einem Pulscodemodulation-Vermittlungssystem und Vorrichtung zur Durchführung des Verfahrens
NO761343A NO761343L (enExample) 1975-04-23 1976-04-21
IE854/76A IE43367B1 (en) 1975-04-23 1976-04-22 Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system
NL7604258A NL7604258A (nl) 1975-04-23 1976-04-22 Werkwijze en inrichting voor het vormen van een aantal gelijktijdige conferenties in een pulscodemodulatie-schakelstelsel.
DK181676A DK156866C (da) 1975-04-23 1976-04-22 Fremgangsmaade og apparat til etablering af et antal simultane konferenceforbindelser i et pcm-tidsmultiplekssystem
SE7604727A SE420556B (sv) 1975-04-23 1976-04-23 Sett och anordning for att vid ett tidsuppdelat omkopplingssystem astadkomma ett flertal samtidiga konferenser
BE166445A BE841099A (fr) 1975-04-23 1976-04-23 Procede et appareil permettant d'etablir plusieurs communications collectives ou de conference simultanees dans un systeme de commutation mic.
FR7612173A FR2309086A1 (fr) 1975-04-23 1976-04-23 Procede et appareil pour etablir plusieurs multi-conversations simultanees dans un dispositif de commutation mic
ES447276A ES447276A1 (es) 1975-04-23 1976-04-23 Procedimiento y aparato para establecer una pluralidad de conferencias simultaneas en sistemas de conmutacion de modu-lacion por impulsos codificados.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA225,276A CA1027265A (en) 1975-04-23 1975-04-23 Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system

Publications (1)

Publication Number Publication Date
CA1027265A true CA1027265A (en) 1978-02-28

Family

ID=4102890

Family Applications (1)

Application Number Title Priority Date Filing Date
CA225,276A Expired CA1027265A (en) 1975-04-23 1975-04-23 Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system

Country Status (13)

Country Link
JP (1) JPS5916459B2 (enExample)
BE (1) BE841099A (enExample)
CA (1) CA1027265A (enExample)
DE (1) DE2617344C2 (enExample)
DK (1) DK156866C (enExample)
ES (1) ES447276A1 (enExample)
FR (1) FR2309086A1 (enExample)
GB (1) GB1529106A (enExample)
IE (1) IE43367B1 (enExample)
IT (1) IT1059227B (enExample)
NL (1) NL7604258A (enExample)
NO (1) NO761343L (enExample)
SE (1) SE420556B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408323A (en) 1981-06-29 1983-10-04 Bell Telephone Laboratories, Incorporated Processor facilities for integrated packet and voice switching

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112258A (en) * 1977-10-12 1978-09-05 Bell Telephone Laboratories, Incorporated Communication system using intelligent network processor
FR2470495B1 (fr) * 1979-11-21 1988-06-24 Int Standard Electric Corp Systeme de commutation numerique de telecommunications capable d'etablir des connexions multilaterales de teleconference et de diffusion selective d'informations ou de signaux
FR2475328B1 (fr) * 1979-11-21 1988-06-24 Int Standard Electric Corp Systeme de commutation numerique de telecommunications, equipe de moyens de connexion en conference d'un ou plusieurs groupes de terminaux
DE3005739C2 (de) * 1980-02-15 1988-11-10 Nixdorf Computer Ag, 4790 Paderborn Verfahren zur Steuerung der Übertragung von PCM-Signalen zwischen Anschlußstellen eines PCM-Zeitmultiplex-Fernmeldenetzes in einem Konferenzbetrieb und Schaltungsanordnung zur Druchführung des Verfahrens
DE3147492A1 (de) * 1981-12-01 1983-06-09 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Schaltungsanordnung zum herstellen von konferenzverbindungen in digital nach dem pcm-verfahren durchschaltenden fernmelde-, insbesondere fernsprechvermittlungsanlagen
US4430734A (en) * 1981-12-14 1984-02-07 Bell Telephone Laboratories, Incorporated Demultiplexer circuit
US4485469A (en) * 1982-08-30 1984-11-27 At&T Bell Laboratories Time slot interchanger
FR2533784B1 (fr) * 1982-09-28 1989-06-30 Thomson Csf Mat Tel Dispositif de conferences multiples pour autocommutateur temporel mic avec reseau de connexion
GB2128448B (en) * 1982-10-08 1985-11-13 Standard Telephones Cables Ltd Telephone exchange conference circuit
GB8301323D0 (en) * 1983-01-18 1983-02-16 Plessey Co Plc Conference bridge
GB2134751B (en) * 1983-01-18 1986-07-30 Plessey Co Plc Conference bridge
GB8324058D0 (en) * 1983-09-08 1983-10-12 Plessey Co Plc Conference bridge circuit arrangement
JPS60253361A (ja) * 1984-05-30 1985-12-14 Fujitsu Ltd 会議通話機能を有する交換システム
JPS6190564A (ja) * 1984-10-11 1986-05-08 Iwatsu Electric Co Ltd 会議通話方式
JPS61123800U (enExample) * 1985-01-21 1986-08-04

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1547633A (fr) * 1967-10-16 1968-11-29 Labo Cent Telecommunicat Circuit d'addition de nombres binaires provenant du codage non linéaire de signaux
US3551600A (en) * 1968-02-23 1970-12-29 Stromberg Carlson Corp High capacity,high side-tone suppression,4-wire conference circuit
FR1602502A (enExample) * 1968-04-11 1970-12-21
US3604855A (en) * 1970-01-02 1971-09-14 Stromberg Carlson Corp Digital conference circuit for pcm signalling system
DE2048198C2 (de) * 1970-09-30 1975-10-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zur Herstellung von Konferenzverbindungen in einer PCM-Fernmelde-, insbesondere Fernsprechvermittlungsstelle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408323A (en) 1981-06-29 1983-10-04 Bell Telephone Laboratories, Incorporated Processor facilities for integrated packet and voice switching

Also Published As

Publication number Publication date
SE420556B (sv) 1981-10-12
NL7604258A (nl) 1976-10-26
DK156866C (da) 1990-02-26
IE43367L (en) 1976-10-23
FR2309086B1 (enExample) 1982-08-20
GB1529106A (en) 1978-10-18
IE43367B1 (en) 1981-02-11
DK156866B (da) 1989-10-09
SE7604727L (sv) 1976-10-24
JPS51135405A (en) 1976-11-24
BE841099A (fr) 1976-08-16
DK181676A (da) 1976-10-24
DE2617344A1 (de) 1976-11-04
ES447276A1 (es) 1977-07-01
DE2617344C2 (de) 1986-07-17
FR2309086A1 (fr) 1976-11-19
IT1059227B (it) 1982-05-31
NO761343L (enExample) 1976-10-26
JPS5916459B2 (ja) 1984-04-16

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