FR2222820A1 - - Google Patents

Info

Publication number
FR2222820A1
FR2222820A1 FR7409660A FR7409660A FR2222820A1 FR 2222820 A1 FR2222820 A1 FR 2222820A1 FR 7409660 A FR7409660 A FR 7409660A FR 7409660 A FR7409660 A FR 7409660A FR 2222820 A1 FR2222820 A1 FR 2222820A1
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.)
Granted
Application number
FR7409660A
Other versions
FR2222820B1 (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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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
Priority claimed from US00343825A external-priority patent/US3828146A/en
Priority claimed from US00343824A external-priority patent/US3835259A/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of FR2222820A1 publication Critical patent/FR2222820A1/fr
Application granted granted Critical
Publication of FR2222820B1 publication Critical patent/FR2222820B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
FR7409660A 1973-03-22 1974-03-21 Expired FR2222820B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00343825A US3828146A (en) 1973-03-22 1973-03-22 Time division conference hybrid circuit
US00343824A US3835259A (en) 1973-03-22 1973-03-22 Time division conference hybrid circuit

Publications (2)

Publication Number Publication Date
FR2222820A1 true FR2222820A1 (fr) 1974-10-18
FR2222820B1 FR2222820B1 (fr) 1979-05-25

Family

ID=26993649

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7409660A Expired FR2222820B1 (fr) 1973-03-22 1974-03-21

Country Status (6)

Country Link
JP (1) JPS541401B2 (fr)
FR (1) FR2222820B1 (fr)
GB (1) GB1447693A (fr)
IT (1) IT1009345B (fr)
NL (1) NL176419C (fr)
SE (1) SE396685B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI79769C (fi) * 1988-06-10 1991-01-14 Heikki Malkki Snabbtelefonsystem samt foerfarande foer uppkoppling i ett snabbtelefonsystem.
JPH02218290A (ja) * 1989-02-17 1990-08-30 Nec Corp ディジタル交換装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787631A (en) * 1972-12-11 1974-01-22 Bell Telephone Labor Inc Time slot number compensating arrangement
US3789154A (en) * 1972-12-11 1974-01-29 Bell Telephone Labor Inc Switchhook status signaling arrangement
US3789152A (en) * 1972-12-11 1974-01-29 Bell Telephone Labor Inc Data format converter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787631A (en) * 1972-12-11 1974-01-22 Bell Telephone Labor Inc Time slot number compensating arrangement
US3789154A (en) * 1972-12-11 1974-01-29 Bell Telephone Labor Inc Switchhook status signaling arrangement
US3789152A (en) * 1972-12-11 1974-01-29 Bell Telephone Labor Inc Data format converter

Also Published As

Publication number Publication date
JPS541401B2 (fr) 1979-01-24
DE2413073B2 (de) 1976-09-16
NL7403591A (fr) 1974-09-24
GB1447693A (en) 1976-08-25
DE2413073A1 (de) 1974-10-03
NL176419B (nl) 1984-11-01
NL176419C (nl) 1985-04-01
FR2222820B1 (fr) 1979-05-25
IT1009345B (it) 1976-12-10
JPS49129410A (fr) 1974-12-11
SE396685B (sv) 1977-09-26

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