GB1170735A - Improvements in or relating to Telephone Systems - Google Patents

Improvements in or relating to Telephone Systems

Info

Publication number
GB1170735A
GB1170735A GB1437866A GB1437866A GB1170735A GB 1170735 A GB1170735 A GB 1170735A GB 1437866 A GB1437866 A GB 1437866A GB 1437866 A GB1437866 A GB 1437866A GB 1170735 A GB1170735 A GB 1170735A
Authority
GB
United Kingdom
Prior art keywords
register
impulse
exchange
march
completed
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
GB1437866A
Inventor
John Spencer Arnold
David Gerald Bryan
David Livingstone Benson
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.)
Automatic Telephone and Electric Co Ltd
Post Office
STC PLC
Original Assignee
Automatic Telephone and Electric Co Ltd
Post Office
Standard Telephone and Cables 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 Automatic Telephone and Electric Co Ltd, Post Office, Standard Telephone and Cables PLC filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB1437866A priority Critical patent/GB1170735A/en
Publication of GB1170735A publication Critical patent/GB1170735A/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
    • H04Q3/54575—Software application
    • H04Q3/54591—Supervision, e.g. fault localisation, traffic measurements, avoiding errors, failure recovery, monitoring, statistical analysis

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Meter Arrangements (AREA)

Abstract

1,170,735. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd., STANDARD TELEPHONES & CABLES Ltd., and H.M. POSTMASTER GENERAL. 29 March, 1967 [31 March, 1966], No. 14378/66. Heading H4K. In an exchange of the kind described in Specification 1,057,218 in which subscribers' lines and incoming junctions as well as register terminations are scanned continuously for calling conditions and connections are set up under the control of a main control unit in association with a register, arrangements are made to avoid possible mutilation of the first digit received from a step-by-step exchange. After detection of a calling condition, the detection by the control unit during later scans of an incoming impulse before a path has been completed to the register causes the programe to be changed to direct that impulse to a store associated with the register which takes subsequent impulses received directly by the register. If, however, more than one impulse is detected before the path to the register is completed, a busy condition is set up.
GB1437866A 1966-03-31 1966-03-31 Improvements in or relating to Telephone Systems Expired GB1170735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1437866A GB1170735A (en) 1966-03-31 1966-03-31 Improvements in or relating to Telephone Systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1437866A GB1170735A (en) 1966-03-31 1966-03-31 Improvements in or relating to Telephone Systems

Publications (1)

Publication Number Publication Date
GB1170735A true GB1170735A (en) 1969-11-12

Family

ID=10040123

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1437866A Expired GB1170735A (en) 1966-03-31 1966-03-31 Improvements in or relating to Telephone Systems

Country Status (1)

Country Link
GB (1) GB1170735A (en)

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