CA1020654A - Telephone exchanges - Google Patents

Telephone exchanges

Info

Publication number
CA1020654A
CA1020654A CA158,423A CA158423A CA1020654A CA 1020654 A CA1020654 A CA 1020654A CA 158423 A CA158423 A CA 158423A CA 1020654 A CA1020654 A CA 1020654A
Authority
CA
Canada
Prior art keywords
telephone exchanges
exchanges
telephone
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
CA158,423A
Other languages
English (en)
Other versions
CA158423S (en
Inventor
Gerald N. Lawrence
Martin Ward
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA1020654A publication Critical patent/CA1020654A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
CA158,423A 1971-12-03 1972-12-01 Telephone exchanges Expired CA1020654A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5622971A GB1408876A (en) 1971-12-03 1971-12-03 Telecommunications exchange apparatus

Publications (1)

Publication Number Publication Date
CA1020654A true CA1020654A (en) 1977-11-08

Family

ID=10476091

Family Applications (1)

Application Number Title Priority Date Filing Date
CA158,423A Expired CA1020654A (en) 1971-12-03 1972-12-01 Telephone exchanges

Country Status (6)

Country Link
US (1) US3911227A (de)
BE (1) BE792235A (de)
CA (1) CA1020654A (de)
DE (1) DE2258502C2 (de)
GB (1) GB1408876A (de)
SE (1) SE400692B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017691A (en) * 1975-12-10 1977-04-12 Stromberg-Carlson Corporation Number translator
US4224477A (en) * 1978-09-11 1980-09-23 Bell Telephone Laboratories, Incorporated Arrangement for translating telephone station equipment numbers into directory numbers
EP0859366A1 (de) 1997-02-12 1998-08-19 STMicroelectronics S.r.l. Assoziativspeichereinrichtung mit optimisierter Belegung, insbesondere zum Erkennen von Wörtern
US6404858B1 (en) * 1997-03-28 2002-06-11 Verizon Services Corp. Personal dial tone service with personalized call waiting
US20040059701A1 (en) * 2002-09-20 2004-03-25 Sergey Fedorov Method and apparatus for integrating data aggregation of historical data and real-time deliverable metrics in a database reporting environment
US10156887B2 (en) * 2016-09-29 2018-12-18 Qualcomm Incorporated Cache memory clock generation circuits for reducing power consumption and read errors in cache memory

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL158350B (nl) * 1967-09-22 1978-10-16 Bell Telephone Mfg Automatisch schakelstelsel, voorzien van een translatorschakeling.
US3613089A (en) * 1969-10-28 1971-10-12 Bell Telephone Labor Inc Associative memory control for a switching network
US3699525A (en) * 1970-11-27 1972-10-17 Honeywell Inf Systems Use of control words to change configuration and operating mode of a data communication system

Also Published As

Publication number Publication date
DE2258502A1 (de) 1973-06-07
DE2258502C2 (de) 1984-10-31
GB1408876A (en) 1975-10-08
SE400692B (sv) 1978-04-03
US3911227A (en) 1975-10-07
BE792235A (fr) 1973-03-30

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