GB2047048B - Telephone systems - Google Patents

Telephone systems

Info

Publication number
GB2047048B
GB2047048B GB8011068A GB8011068A GB2047048B GB 2047048 B GB2047048 B GB 2047048B GB 8011068 A GB8011068 A GB 8011068A GB 8011068 A GB8011068 A GB 8011068A GB 2047048 B GB2047048 B GB 2047048B
Authority
GB
United Kingdom
Prior art keywords
telephone systems
telephone
systems
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
GB8011068A
Other versions
GB2047048A (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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB8011068A priority Critical patent/GB2047048B/en
Publication of GB2047048A publication Critical patent/GB2047048A/en
Application granted granted Critical
Publication of GB2047048B publication Critical patent/GB2047048B/en
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
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephonic Communication Services (AREA)
GB8011068A 1979-04-20 1980-04-02 Telephone systems Expired GB2047048B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8011068A GB2047048B (en) 1979-04-20 1980-04-02 Telephone systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7913780 1979-04-20
GB8011068A GB2047048B (en) 1979-04-20 1980-04-02 Telephone systems

Publications (2)

Publication Number Publication Date
GB2047048A GB2047048A (en) 1980-11-19
GB2047048B true GB2047048B (en) 1983-04-20

Family

ID=26271284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8011068A Expired GB2047048B (en) 1979-04-20 1980-04-02 Telephone systems

Country Status (1)

Country Link
GB (1) GB2047048B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2098027B (en) * 1981-04-30 1984-11-28 Standard Telephones Cables Ltd Telephone exchange
AU2846184A (en) * 1983-05-26 1984-11-29 International Standard Electric Corp. Digital transmission system
GB8504810D0 (en) * 1985-02-25 1985-03-27 Gen Electric Co Plc Local communication system
CA1311286C (en) * 1988-03-10 1992-12-08 David Joseph Robertson Digital key telephone system

Also Published As

Publication number Publication date
GB2047048A (en) 1980-11-19

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee