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 systemsInfo
- 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
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
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.
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) |
-
1958
- 1958-01-22 GB GB3028260A patent/GB897765A/en not_active Expired
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