FR2320015A1 - Circuit de conference pour centraux telephoniques de commutation de type numerique - Google Patents

Circuit de conference pour centraux telephoniques de commutation de type numerique

Info

Publication number
FR2320015A1
FR2320015A1 FR7621920A FR7621920A FR2320015A1 FR 2320015 A1 FR2320015 A1 FR 2320015A1 FR 7621920 A FR7621920 A FR 7621920A FR 7621920 A FR7621920 A FR 7621920A FR 2320015 A1 FR2320015 A1 FR 2320015A1
Authority
FR
France
Prior art keywords
digital switching
conference circuit
switching telephone
telephone centers
centers
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
FR7621920A
Other languages
English (en)
Other versions
FR2320015B1 (fr
Inventor
Amilcare Bovo
Giuseppe Valsecchi
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.)
Italtel SpA
Original Assignee
Societa Italiana Telecomunicazioni Siemens SpA
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 Societa Italiana Telecomunicazioni Siemens SpA filed Critical Societa Italiana Telecomunicazioni Siemens SpA
Publication of FR2320015A1 publication Critical patent/FR2320015A1/fr
Application granted granted Critical
Publication of FR2320015B1 publication Critical patent/FR2320015B1/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Complex Calculations (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
FR7621920A 1975-07-31 1976-07-19 Circuit de conference pour centraux telephoniques de commutation de type numerique Granted FR2320015A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT25950/75A IT1040208B (it) 1975-07-31 1975-07-31 Circuito cnferenza per centrali telefonische di commutazione di tipo numperico

Publications (2)

Publication Number Publication Date
FR2320015A1 true FR2320015A1 (fr) 1977-02-25
FR2320015B1 FR2320015B1 (fr) 1981-09-25

Family

ID=11218237

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621920A Granted FR2320015A1 (fr) 1975-07-31 1976-07-19 Circuit de conference pour centraux telephoniques de commutation de type numerique

Country Status (12)

Country Link
JP (1) JPS5218108A (fr)
AR (1) AR209981A1 (fr)
AU (1) AU497812B2 (fr)
BR (1) BR7604885A (fr)
DE (1) DE2634345A1 (fr)
FR (1) FR2320015A1 (fr)
GB (1) GB1528240A (fr)
IN (1) IN143837B (fr)
IT (1) IT1040208B (fr)
NL (1) NL7608295A (fr)
SE (1) SE7608445L (fr)
TR (1) TR19323A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406365A1 (fr) * 1977-10-12 1979-05-11 Western Electric Co Autocommutateur pour un systeme de telecommunications
FR2511825A1 (fr) * 1981-08-20 1983-02-25 Int Standard Electric Corp Procede et circuit d'addition de mots binaires constituant des signaux modules par impulsions et codage selon une loi de compression
FR2524750A1 (fr) * 1982-03-30 1983-10-07 Telecommunications Sa Systeme de visioconference multisalle
FR2533784A1 (fr) * 1982-09-28 1984-03-30 Thomson Csf Mat Tel Dispositif de conferences multiples pour autocommutateur temporel mic avec reseau de connexion

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31651E (en) * 1977-10-12 1984-08-21 Bell Telephone Laboratories, Incorporated Communication system using intelligent network processor
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
US4408323A (en) 1981-06-29 1983-10-04 Bell Telephone Laboratories, Incorporated Processor facilities for integrated packet and voice switching
GB2128448B (en) * 1982-10-08 1985-11-13 Standard Telephones Cables Ltd Telephone exchange conference circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406365A1 (fr) * 1977-10-12 1979-05-11 Western Electric Co Autocommutateur pour un systeme de telecommunications
FR2511825A1 (fr) * 1981-08-20 1983-02-25 Int Standard Electric Corp Procede et circuit d'addition de mots binaires constituant des signaux modules par impulsions et codage selon une loi de compression
FR2524750A1 (fr) * 1982-03-30 1983-10-07 Telecommunications Sa Systeme de visioconference multisalle
EP0091327A1 (fr) * 1982-03-30 1983-10-12 SAT (Société Anonyme de Télécommunications),Société Anonyme Système de visioconférence multisalle
FR2533784A1 (fr) * 1982-09-28 1984-03-30 Thomson Csf Mat Tel Dispositif de conferences multiples pour autocommutateur temporel mic avec reseau de connexion

Also Published As

Publication number Publication date
IN143837B (fr) 1978-02-11
TR19323A (tr) 1978-11-28
FR2320015B1 (fr) 1981-09-25
DE2634345A1 (de) 1977-02-17
SE7608445L (sv) 1977-05-09
NL7608295A (nl) 1977-02-02
JPS5218108A (en) 1977-02-10
AU1636576A (en) 1978-02-02
GB1528240A (en) 1978-10-11
AR209981A1 (es) 1977-06-15
BR7604885A (pt) 1977-08-09
IT1040208B (it) 1979-12-20
AU497812B2 (en) 1979-01-11

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Legal Events

Date Code Title Description
ST Notification of lapse