Bloch-line memory system

Static information storage and retrieval – Systems using particular element – Magnetic thin film


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365 87, G11C 1908




An apparatus for and a method of storing binary data in a thin ferromagnetic film strip as the presence or absence of Bloch-lines without the presence of cross-ties. The apparatus utilizes a serrated strip of isotropic magnetic material that is formed in the shape of a series of contiguous disks. Each pair of contiguous disks is coupled by a narrow section of magnetic material that functions as a "door" between adjacent disks through which the Bloch-line defining datum bit may be propagated when subjected to the appropriate drive fields.

patent: 3996572 (1976-12-01), Keefe et al.
patent: 4075612 (1978-02-01), Johnson et al.
patent: 4080591 (1978-03-01), Torok


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