GB897765A - Improvements in or relating to register translators for use in automatic telephone switching systems - Google Patents

Improvements in or relating to register translators for use in automatic telephone switching systems

Info

Publication number
GB897765A
GB897765A GB3028260A GB3028260A GB897765A GB 897765 A GB897765 A GB 897765A GB 3028260 A GB3028260 A GB 3028260A GB 3028260 A GB3028260 A GB 3028260A GB 897765 A GB897765 A GB 897765A
Authority
GB
United Kingdom
Prior art keywords
automatic telephone
relating
telephone switching
switching systems
register
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
GB3028260A
Inventor
John Frank Greenaway
Donald Halton
Kenneth George Marwing
William Archibald Cha Hemmings
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
Original Assignee
Automatic Telephone and Electric Co 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 Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB3028260A priority Critical patent/GB897765A/en
Priority claimed from GB2112/58A external-priority patent/GB897764A/en
Publication of GB897765A publication Critical patent/GB897765A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/42Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Meter Arrangements (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

897,765. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Jan. 5, 1959 [Jan. 22, 1958], No. 30282/60. Drawings to Specification. Divided out of 897,764. Class 40 (4). A register-translator of the magnetic drum type comprises a number of library tracks arranged in pairs, one or other of a pair being selected according to whether the second code digit is odd or even. The number of tracks necessary in a large system is thereby reduced. The subject-matter of the Specification is contained in Specification 897,764 but the claims differ. Specification 717,687 also is referred to.
GB3028260A 1958-01-22 1958-01-22 Improvements in or relating to register translators for use in automatic telephone switching systems Expired GB897765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3028260A GB897765A (en) 1958-01-22 1958-01-22 Improvements in or relating to register translators for use in automatic telephone switching systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2112/58A GB897764A (en) 1958-01-22 1958-01-22 Improvements in or relating to register translators for use in automatic telephone switching systems
GB3028260A GB897765A (en) 1958-01-22 1958-01-22 Improvements in or relating to register translators for use in automatic telephone switching systems

Publications (1)

Publication Number Publication Date
GB897765A true GB897765A (en) 1962-05-30

Family

ID=26237265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3028260A Expired GB897765A (en) 1958-01-22 1958-01-22 Improvements in or relating to register translators for use in automatic telephone switching systems

Country Status (1)

Country Link
GB (1) GB897765A (en)

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