Hard magnetic bubble domain analog multiplier

专利名称：Hard magnetic bubble domain analog

multiplier

发明人：Aleksander I. Braginski,Terence W. O'Keeffe申请号：US05/674512申请日：19760407公开号：US040381A公开日：19770726

摘要：Hard magnetic bubble domains are propagated in displaced orbits in responseto the product of two cyclically varying propagation control fields. The control fieldsmodulate the hard bubble domain diameter and a driving field gradient. Repulsiveboundaries establish a restricted propagating channel in a layer of bubble domainmaterial to maintain the net displacement of orbital movements of the bubble domainalong a predetermined axis. The axis of the bubble domain net displacement is

perpendicular to the direction of the driving field gradient and preferably along a neutralaxis of the driving field gradient. The net displacement of the hard bubble domainsprovide an improved analog multiplication of two alternating current computationalinput signals controlling the propagation control fields.

申请人：WESTINGHOUSE ELECTRIC CORPORATION

代理人：R. W. Smith

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