NO885242L - Digitaltaste-telefonsystem. - Google Patents

Digitaltaste-telefonsystem.

Info

Publication number
NO885242L
NO885242L NO88885242A NO885242A NO885242L NO 885242 L NO885242 L NO 885242L NO 88885242 A NO88885242 A NO 88885242A NO 885242 A NO885242 A NO 885242A NO 885242 L NO885242 L NO 885242L
Authority
NO
Norway
Prior art keywords
channels
bit states
memory locations
digital key
asserted
Prior art date
Application number
NO88885242A
Other languages
English (en)
Other versions
NO885242D0 (no
Inventor
George Frank Irwin
Paul Joseph Smelters
David Joseph Robertson
Ronald James Maginley
Alan Stanley John Chapman
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of NO885242D0 publication Critical patent/NO885242D0/no
Publication of NO885242L publication Critical patent/NO885242L/no

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
    • H04M9/008—Multiplex systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephonic Communication Services (AREA)
  • Switches With Compound Operations (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
NO88885242A 1987-11-30 1988-11-24 Digitaltaste-telefonsystem. NO885242L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12617087A 1987-11-30 1987-11-30

Publications (2)

Publication Number Publication Date
NO885242D0 NO885242D0 (no) 1988-11-24
NO885242L true NO885242L (no) 1989-05-31

Family

ID=22423358

Family Applications (3)

Application Number Title Priority Date Filing Date
NO88885242A NO885242L (no) 1987-11-30 1988-11-24 Digitaltaste-telefonsystem.
NO88885240A NO885240L (no) 1987-11-30 1988-11-24 Digitaltaste-telefonsystem.
NO88885241A NO885241L (no) 1987-11-30 1988-11-24 Telefon-tastesystem.

Family Applications After (2)

Application Number Title Priority Date Filing Date
NO88885240A NO885240L (no) 1987-11-30 1988-11-24 Digitaltaste-telefonsystem.
NO88885241A NO885241L (no) 1987-11-30 1988-11-24 Telefon-tastesystem.

Country Status (4)

Country Link
EP (1) EP0319139B1 (no)
AT (1) ATE100261T1 (no)
DE (1) DE3887110T2 (no)
NO (3) NO885242L (no)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390982A (en) * 1981-01-14 1983-06-28 International Telephone And Telegraph Corporation Digital PBX system
US4631364A (en) * 1984-02-23 1986-12-23 At&T Information Systems Inc. Communication system having dynamically assigned station set buttons
AU5110385A (en) * 1984-12-28 1986-07-03 Gte Laboratories Incorporated Time division multiplexing ram

Also Published As

Publication number Publication date
ATE100261T1 (de) 1994-01-15
DE3887110T2 (de) 1994-05-11
NO885240D0 (no) 1988-11-24
DE3887110D1 (de) 1994-02-24
NO885242D0 (no) 1988-11-24
NO885241L (no) 1989-05-31
NO885240L (no) 1989-05-31
EP0319139A3 (en) 1990-05-23
EP0319139A2 (en) 1989-06-07
NO885241D0 (no) 1988-11-24
EP0319139B1 (en) 1994-01-12

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