Static information storage and retrieval – Magnetic bubbles – Guide structure
Patent
1977-04-12
1978-10-24
Canney, Vincent P.
Static information storage and retrieval
Magnetic bubbles
Guide structure
365 19, G11C 1908
Patent
active
041225392
ABSTRACT:
A magnetic bubble element which is useful as an image information processing element. A thin film made of a magnetic bubble forming material has a plurality of wedge-formed patterns made of a non-magnetostriction soft magnetic thin film is formed on the upper surface of the thin film 16. A conductor grating comprising two undulating conductor patterns are provided each cycle of the undulation in both conductor patterns defining a wider pitch and a narrower pitch, each of the wedge-formed patterns being disposed over the corresponding part of one of the two conductor patterns defining the narrower pitch in a manner such that the apex portion and the bottom portion of each wedge shaped pattern extend into the parts forming the wider pitch.
REFERENCES:
patent: 3540021 (1970-11-01), Bobeck et al.
"Single Phase Cylindrical Magnetic Domain Shift Register"-Keete et al.; IBM Tech. Dis. Bul., vol. 13, #11, Apr. 1971.
Canney Vincent P.
Keschner Irving
Raizes Sheldon F.
Ralabate James J.
Xerox Corporation
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