JPS51101402A - - Google Patents

Info

Publication number
JPS51101402A
JPS51101402A JP50026734A JP2673475A JPS51101402A JP S51101402 A JPS51101402 A JP S51101402A JP 50026734 A JP50026734 A JP 50026734A JP 2673475 A JP2673475 A JP 2673475A JP S51101402 A JPS51101402 A JP S51101402A
Authority
JP
Japan
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
JP50026734A
Other versions
JPS5426444B2 (ja
Inventor
Hikari Takematsu
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.)
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
Original Assignee
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
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 Iwatsu Electric Co Ltd, Iwasaki Tsushinki KK filed Critical Iwatsu Electric Co Ltd
Priority to JP2673475A priority Critical patent/JPS5426444B2/ja
Priority to US05/663,502 priority patent/US4011415A/en
Publication of JPS51101402A publication Critical patent/JPS51101402A/ja
Publication of JPS5426444B2 publication Critical patent/JPS5426444B2/ja
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)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP2673475A 1975-03-05 1975-03-05 Expired JPS5426444B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2673475A JPS5426444B2 (ja) 1975-03-05 1975-03-05
US05/663,502 US4011415A (en) 1975-03-05 1976-03-03 Call circuit for key telephone system for giving direct station selection call priority over station call

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2673475A JPS5426444B2 (ja) 1975-03-05 1975-03-05

Publications (2)

Publication Number Publication Date
JPS51101402A true JPS51101402A (ja) 1976-09-07
JPS5426444B2 JPS5426444B2 (ja) 1979-09-04

Family

ID=12201528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2673475A Expired JPS5426444B2 (ja) 1975-03-05 1975-03-05

Country Status (2)

Country Link
US (1) US4011415A (ja)
JP (1) JPS5426444B2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5673956A (en) * 1979-11-21 1981-06-19 Taiko Denki Seisakusho:Kk Callout system for telephone set

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096358A (en) * 1976-05-24 1978-06-20 Bell Telephone Laboratories, Incorporated Key telephone system signal priority arrangement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115551A (en) * 1960-08-30 1963-12-24 American Telephone & Telegraph Crossbar switch station concentrator
US3299217A (en) * 1963-10-31 1967-01-17 Bell Telephone Labor Inc Auxiliary interconnecting unit for multi-line subscriber telephone system
IL29996A0 (en) * 1968-05-15 1968-07-25 Tel Rad Consolidated Telephone Electronic telephone calling system
US3787640A (en) * 1972-12-26 1974-01-22 Bell Telephone Labor Inc Key telephone intercom circuit
JPS539804B2 (ja) * 1973-02-10 1978-04-08
US3927278A (en) * 1973-03-23 1975-12-16 Nitsuko Ltd Direct-station-selection intercommunication and automatic holding circuit in a key telephone system
US3898392A (en) * 1974-02-25 1975-08-05 Litton Systems Inc Answer-back assembly for a key telephone system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5673956A (en) * 1979-11-21 1981-06-19 Taiko Denki Seisakusho:Kk Callout system for telephone set

Also Published As

Publication number Publication date
JPS5426444B2 (ja) 1979-09-04
US4011415A (en) 1977-03-08

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