GB1417037A - Production of switching order information for transmission of pcm words - Google Patents

Production of switching order information for transmission of pcm words

Info

Publication number
GB1417037A
GB1417037A GB635073A GB635073A GB1417037A GB 1417037 A GB1417037 A GB 1417037A GB 635073 A GB635073 A GB 635073A GB 635073 A GB635073 A GB 635073A GB 1417037 A GB1417037 A GB 1417037A
Authority
GB
United Kingdom
Prior art keywords
event
calling
computer
last
data
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
GB635073A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 SE01445/72A external-priority patent/SE353639B/xx
Priority claimed from SE144472A external-priority patent/SE351543B/xx
Priority claimed from SE01442/72A external-priority patent/SE351541B/xx
Priority claimed from SE01446/72A external-priority patent/SE353996B/xx
Priority claimed from SE01443/72A external-priority patent/SE351542B/xx
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB1417037A publication Critical patent/GB1417037A/en
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
    • H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Control Of Transmission Device (AREA)

Abstract

1417037 Automatic exchange systems TELEFONAKTIEBOLAGET L M ERICSSON 8 Feb 1973 [8 Feb 1972 (5)] 6350/73 Heading H4K In a TDM exchange incorporating a timespace-time network through which PCM channels are switched preferably in a parallel format, signal words pertaining to PCM channels are transferred through the space stage to a last-look memory so as to enlist a computer in the event of any changes. The computer seizes a control circuit associated with the space switch and, in the event of a calling condition, instructs it to find a free time slot useable on the incoming and outgoing highways pertaining to the calling and called parties. The slot identity and calling/ called party data is then despatched via the space switch to control memories in the first and last time stages so as to permit the connection to be set up. All the data is also stored in the last-look memory. In the event of a callrelease condition, the computer instructs the control circuit to cancel the data in the various memories. The particular description is identical to that in Specifications 1,417,033, 1,417,034, 1,417,035 and 1,417,036.
GB635073A 1972-02-08 1973-02-08 Production of switching order information for transmission of pcm words Expired GB1417037A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE01445/72A SE353639B (en) 1972-02-08 1972-02-08
SE144472A SE351543B (en) 1972-02-08 1972-02-08
SE01442/72A SE351541B (en) 1972-02-08 1972-02-08
SE01446/72A SE353996B (en) 1972-02-08 1972-02-08
SE01443/72A SE351542B (en) 1972-02-08 1972-02-08

Publications (1)

Publication Number Publication Date
GB1417037A true GB1417037A (en) 1975-12-10

Family

ID=27532698

Family Applications (5)

Application Number Title Priority Date Filing Date
GB634773A Expired GB1417034A (en) 1972-02-08 1973-02-08 Transfer of switching order information for transmission of pcm words
GB634873A Expired GB1417035A (en) 1972-02-08 1973-02-08 Allotting time slots and adding addresses to pcm words
GB634673A Expired GB1417033A (en) 1972-02-08 1973-02-08 Selecting of a time slot for transmission of pcm words
GB634973A Expired GB1417036A (en) 1972-02-08 1973-02-08 Operating file gates in an exchange for pcm words
GB635073A Expired GB1417037A (en) 1972-02-08 1973-02-08 Production of switching order information for transmission of pcm words

Family Applications Before (4)

Application Number Title Priority Date Filing Date
GB634773A Expired GB1417034A (en) 1972-02-08 1973-02-08 Transfer of switching order information for transmission of pcm words
GB634873A Expired GB1417035A (en) 1972-02-08 1973-02-08 Allotting time slots and adding addresses to pcm words
GB634673A Expired GB1417033A (en) 1972-02-08 1973-02-08 Selecting of a time slot for transmission of pcm words
GB634973A Expired GB1417036A (en) 1972-02-08 1973-02-08 Operating file gates in an exchange for pcm words

Country Status (1)

Country Link
GB (5) GB1417034A (en)

Also Published As

Publication number Publication date
GB1417033A (en) 1975-12-10
GB1417035A (en) 1975-12-10
GB1417034A (en) 1975-12-10
GB1417036A (en) 1975-12-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee