FR2237383B1 - - Google Patents

Info

Publication number
FR2237383B1
FR2237383B1 FR7325580A FR7325580A FR2237383B1 FR 2237383 B1 FR2237383 B1 FR 2237383B1 FR 7325580 A FR7325580 A FR 7325580A FR 7325580 A FR7325580 A FR 7325580A FR 2237383 B1 FR2237383 B1 FR 2237383B1
Authority
FR
France
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
FR7325580A
Other versions
FR2237383A1 (fr
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.)
Jeumont Schneider SA
Original Assignee
Jeumont Schneider SA
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 Jeumont Schneider SA filed Critical Jeumont Schneider SA
Priority to FR7325580A priority Critical patent/FR2237383B1/fr
Priority to GB2842974A priority patent/GB1476122A/en
Priority to US486815A priority patent/US3908089A/en
Priority to IT52062/74A priority patent/IT1016396B/it
Priority to DE2433369A priority patent/DE2433369C3/de
Publication of FR2237383A1 publication Critical patent/FR2237383A1/fr
Application granted granted Critical
Publication of FR2237383B1 publication Critical patent/FR2237383B1/fr
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
FR7325580A 1973-07-12 1973-07-12 Expired FR2237383B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7325580A FR2237383B1 (fr) 1973-07-12 1973-07-12
GB2842974A GB1476122A (en) 1973-07-12 1974-06-26 Automatic electronic multiplex pluse code modulation exchanges
US486815A US3908089A (en) 1973-07-12 1974-07-09 Circuit for adding a party to a conference in a PCM exchange
IT52062/74A IT1016396B (it) 1973-07-12 1974-07-11 Procedimento per mettere in comunicazione piu corrispondenti e circuito per la realizzazione del procedimento
DE2433369A DE2433369C3 (de) 1973-07-12 1974-07-11 Schaltungsanordnung zur Herstellung von Konferenzverbindungen zwischen mehreren Teilnehmern bei einem PCM-Zeitmultiplexsystem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7325580A FR2237383B1 (fr) 1973-07-12 1973-07-12

Publications (2)

Publication Number Publication Date
FR2237383A1 FR2237383A1 (fr) 1975-02-07
FR2237383B1 true FR2237383B1 (fr) 1978-02-10

Family

ID=9122478

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7325580A Expired FR2237383B1 (fr) 1973-07-12 1973-07-12

Country Status (5)

Country Link
US (1) US3908089A (fr)
DE (1) DE2433369C3 (fr)
FR (1) FR2237383B1 (fr)
GB (1) GB1476122A (fr)
IT (1) IT1016396B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984643A (en) * 1975-04-24 1976-10-05 Northern Electric Company Limited Method and apparatus for establishing a plurality of simultaneous conferences in a PCM switching system
US4054757A (en) * 1976-12-13 1977-10-18 International Standard Electric Corporation Conference circuit using PCM techniques
ZA786108B (en) * 1977-11-07 1979-10-31 Post Office Improvements in or relating to the switching of digital signals
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
GB2128448B (en) * 1982-10-08 1985-11-13 Standard Telephones Cables Ltd Telephone exchange conference circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420959A (en) * 1965-04-09 1969-01-07 Bell Telephone Labor Inc Telephone conference circuit
US3699264A (en) * 1971-03-02 1972-10-17 Gte Automatic Electric Lab Inc Conference circuit for pulse code modulated telephony

Also Published As

Publication number Publication date
US3908089A (en) 1975-09-23
IT1016396B (it) 1977-05-30
DE2433369C3 (de) 1979-02-01
FR2237383A1 (fr) 1975-02-07
GB1476122A (en) 1977-06-10
DE2433369B2 (de) 1978-06-15
DE2433369A1 (de) 1975-02-20

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Legal Events

Date Code Title Description
ST Notification of lapse