Magnetic bubble domain replicator

Details Magnetic bubble domain replicator Magnetic bubble domain replicator

1977-02-23

1978-04-25

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Generators

365 36, G11C 1908

Patent

active

040865720

ABSTRACT:
Magnetic bubble domain replicator structure as employed in a magnetic bubble domain memory circuit device of the major-minor bubble propagation path type. The magnetic bubble domain replicate structure comprises a thin metallic conducting loop whose opposite sides are in contact with consecutive elements of magnetically soft material (e.g., permalloy) defining a propagation path aligned transversely with respect to a minor bubble propagation path employed for data storage. A DC bias field is provided for the magnetic bubble domain memory circuit and exists within the thin metallic loop of the replicate structure. The occurrence of a current pulse from a pulse generator directed to the thin metallic loop so as to reduce the DC bias field therein below a predetermined value at the same time that a magnetic bubble is within the metallic loop causes replication splitting the magnetic bubble into a pair of bubbles.

REFERENCES:
patent: 3810133 (1974-05-01), Bobeck et al.
patent: 3925769 (1975-12-01), George
patent: 3967002 (1976-06-01), Almasi et al.
AIP Conference on Magnetism & Magnetic Materials-Dec. 3-6, 1974, San Francisco, Cal., pp. 630-632.

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