Fast access magnetic bubble memory

Details Fast access magnetic bubble memory Fast access magnetic bubble memory

1983-11-10

1985-07-16

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Plural interacting paths

G11C 1908

Patent

active

045300712

ABSTRACT:
A magnetic bubble memory that can be read during every cycle of an in-plane drive field includes first and second minor loop sets into which alternate bits of a bubble pattern are stored. Two bubble generators are used to generate a sequence of bubbles in each of two associated lines for later movement to first and second write lines associated with the two minor loop sets, respectively. Swap functions are defined between each write line and the associated line and are operative in a push-pull manner to selectively move bubbles into alternative locations of each of the write lines. Later controlled movement of bubble patterns to selected locations in the minor loop sets results in permanent storage for later integration into a single read line for permitting "read-on-every-cycle" operation.

REFERENCES:
IEEE Transactions on Magnetics-vol. Mag. 15, No. 6, Nov. 1979; pp. 1692-1696.

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