http://iet.metastore.ingenta.com
1887

Digital storage

More general concepts than this:

More specific concepts than this:

1-1 of 1 results

Filter by subject:

< Any subject

  • Electrical and electronic engineering [1]
  • Magnetic and superconducting materials and devices [1]
  • Magnetic materials and devices [1]
  • Magnetic materials [1]
  • Ferrites and garnets [1]
  • Magnetic material applications and devices [1]
  • Magnetic cores [1]
  • Communications [1]
  • Telecommunication [1]
  • Switching centres and equipment [1]
  • See more See less

Filter by content type:

Filter by publication date:

< Any publication date

  • 1970 [1]

Filter by author:

Ferrite-core unit as combined memory and line scanner in electronic telephone exchanges
Author(s): D. Spektor, M. Yoeli, J. Ben Uri
Source: Proceedings of the Institution of Electrical Engineers, Volume 117, Issue 11, 1970 , p. 2070 - 2072
Type: Article
+ Show details - Hide details

The paper describes a ferrite-core unit serving both as memory and line scanner in a 64-subscriber electronic telephone exchange used as a p.a.x. (private automatic exchange). This dual function is realised by ferrite cores with a rectangular hysteresis loop, using working points different from those of conventional computer core memories and determined by m.m.f.s produced by currents in the appropriate windings. The cores are arranged in a square matrix and are scanned by a ‘linear-selection’ mode. A special bridge amplifier, with logic-controlled switches in its four arms and the reading winding at its centre, permits the reading currents to be directed as required by actuating a pair of opposite arms.

Add to favourites
Export citations
Items per page 20 | 50 | 100
Print this page
This is a required field
Please enter a valid email address