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Sequenced Readout in a Bubble Domain Associative Memory

IP.com Disclosure Number: IPCOM000041624D
Original Publication Date: 1984-Feb-01
Included in the Prior Art Database: 2005-Feb-02

Publishing Venue


Related People

Chang, H Lee, SY [+details]


A bubble domain associative memory is shown in IBM Technical Disclosure Bulletin 18, 598-602 (July 1975). This associative memory uses a plurality of bubble loadable latches comprised of magnetic elements which can hold a bubble domain. Depending upon the presence or absence of a current in an associated conductor, bubble domains will be loaded onto the latches. The presence of the domains on the latches will determine whether subsequent domains will be allowed to pass through or deflect along a different path. This reference not only identifies matched shift registers but also seals off the mismatched shift registers. The present structure enables a sequenced readout to occur after multiple matches are made in an associative memory, such as that described in the aforementioned reference.