FR2251147B1 - - Google Patents

Info

Publication number
FR2251147B1
FR2251147B1 FR7436908A FR7436908A FR2251147B1 FR 2251147 B1 FR2251147 B1 FR 2251147B1 FR 7436908 A FR7436908 A FR 7436908A FR 7436908 A FR7436908 A FR 7436908A FR 2251147 B1 FR2251147 B1 FR 2251147B1
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
FR7436908A
Other languages
French (fr)
Other versions
FR2251147A1 (en
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2251147A1 publication Critical patent/FR2251147A1/fr
Application granted granted Critical
Publication of FR2251147B1 publication Critical patent/FR2251147B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Time-Division Multiplex Systems (AREA)
FR7436908A 1973-11-12 1974-11-07 Expired FR2251147B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732356448 DE2356448C2 (en) 1973-11-12 1973-11-12 Series system with a central control

Publications (2)

Publication Number Publication Date
FR2251147A1 FR2251147A1 (en) 1975-06-06
FR2251147B1 true FR2251147B1 (en) 1982-04-02

Family

ID=5897877

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7436908A Expired FR2251147B1 (en) 1973-11-12 1974-11-07

Country Status (7)

Country Link
BE (1) BE821976A (en)
DE (1) DE2356448C2 (en)
DK (1) DK576974A (en)
FR (1) FR2251147B1 (en)
GB (1) GB1453496A (en)
IT (1) IT1025562B (en)
NL (1) NL7414563A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320020A1 (en) * 1975-08-01 1977-02-25 Gte Atea Nv Electronic trunk line connected communication system - has modular unit construction with central unit, several trunk lines and local subscriber links
GB1538996A (en) * 1976-03-10 1979-01-24 Chestel Inc Communication switching system
DE2752987C2 (en) * 1977-11-28 1984-12-20 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Circuit arrangement for displaying different, preferably optical, identifiers by means of display elements in terminals of a telecommunications system
DE3036205A1 (en) * 1980-09-25 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Digital data transmission between exchange and terminal - using rising edge of each logic one pulse for synchronising terminal with exchange
DE3112894C2 (en) * 1981-03-31 1985-06-27 Siemens AG, 1000 Berlin und 8000 München Transmit and receive unit for binary control data signals to be transmitted in telephone exchanges, especially in small private branch exchanges
CA1169597A (en) * 1981-09-11 1984-06-19 Gordon D. Benning Home communications and control system
US4523056A (en) * 1982-12-27 1985-06-11 Reliance Electric Company Telephone including resistive array for dialing and system for using such telephone

Also Published As

Publication number Publication date
GB1453496A (en) 1976-10-20
BE821976A (en) 1975-05-09
IT1025562B (en) 1978-08-30
AU7639274A (en) 1976-06-17
FR2251147A1 (en) 1975-06-06
DE2356448C2 (en) 1983-01-20
NL7414563A (en) 1975-05-14
DK576974A (en) 1975-07-14
DE2356448A1 (en) 1975-05-15

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Legal Events

Date Code Title Description
ST Notification of lapse