BUBBLE MEMORY

BUBBLE MEMORY

A bubble memory device comprises a magnetic field shielding casing (12); a drive coil (14) for generating a rotating magnetic field within the casing; a bubble memory chip (18); and a magnet (16) for generating a bias magnetic field for the bubble memory chip, the magnet consists of a single permane...

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Hauptverfasser: GALE ALLEN JALLEN, GENE PATRICK BONNIE
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
PHYSICS
STATIC STORES
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creator GALE ALLEN JALLEN
GENE PATRICK BONNIE
description A bubble memory device comprises a magnetic field shielding casing (12); a drive coil (14) for generating a rotating magnetic field within the casing; a bubble memory chip (18); and a magnet (16) for generating a bias magnetic field for the bubble memory chip, the magnet consists of a single permanent magnet of low permeability material having a first surface in thermal contact with a complementary surface of the bubble memory chip and within the drive coil, the magnet having a contoured second surface disposed opposite the first surface so that a central region of the magnet is thicker than an edge region whereby an enhanced magnetic field is created locally and the magnetic field is essentially uniform over the entire bubble memory chip.
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GENE PATRICK BONNIE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU7625181A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1982</creationdate><topic>INFORMATION STORAGE</topic><topic>PHYSICS</topic><topic>STATIC STORES</topic><toplevel>online_resources</toplevel><creatorcontrib>GALE ALLEN JALLEN</creatorcontrib><creatorcontrib>GENE PATRICK BONNIE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GALE ALLEN JALLEN</au><au>GENE PATRICK BONNIE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>BUBBLE MEMORY</title><date>1982-05-13</date><risdate>1982</risdate><abstract>A bubble memory device comprises a magnetic field shielding casing (12); a drive coil (14) for generating a rotating magnetic field within the casing; a bubble memory chip (18); 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subjects INFORMATION STORAGE
PHYSICS
STATIC STORES
title BUBBLE MEMORY
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