Browse Prior Art Database

Data Storage Selection System

IP.com Disclosure Number: IPCOM000093027D
Original Publication Date: 1967-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Axford, JG: AUTHOR

Abstract

The data store consists of P segments each containing M words of N bits length. Magnetic thin films are used as storage elements. Data is stored by rotating the vectors of the film into the hard direction and coincidently applying a field in one direction or other along the easy axis. Such is to determine which way the vectors relax on removal of the field in the hard direction.

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Data Storage Selection System

The data store consists of P segments each containing M words of N bits length. Magnetic thin films are used as storage elements. Data is stored by rotating the vectors of the film into the hard direction and coincidently applying a field in one direction or other along the easy axis. Such is to determine which way the vectors relax on removal of the field in the hard direction.

The field along the easy axis of the film is produced by energizing an associated bit-sense conductor 1. The field in the hard direction is produced by the combined energization of a bias conductor 2 and a word conductor 3. The field due to either conductor 2 or 3 alone is insufficient to rotate the vectors of associated films into the hard direction.

Bias conductors 2 are staggered through the store so that there is a unique combination of word and bias conductors for each segment of the store. A word is destructively interrogated by energizing the word and bias conductors associated with that word to rotate the vectors into the hard direction. Thus signals are induced in the associated bit-sense lines 1 indicative of the data stored. Since the word and bias conductors associated with that word to rotate the vectors into the hard direction. Thus signals are induced in the associated bit-sense lines 1 indicative of the data stored. Since the word and bias conductors are staggered from segment to segment through the store, data in other segments is not destroy...