Non-volatile bubble domain memory system

Details Non-volatile bubble domain memory system Non-volatile bubble domain memory system

1977-08-22

1979-09-18

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Plural interacting paths

G11C 1908

Patent

active

041685350

ABSTRACT:
A major/minor loop bubble domain memory system maintains the non-volatility of data when subjected to a power on-off-on sequence. A bubble domain shift register is associated with the major/minor loop array and indicates when a block of data in the major loop is in position to be transferred into the minor loops. The length of the shift register is related to the propagation delay of the path over which a bubble is propagated along the major loop from a minor loop read transfer switch to the write transfer switch for the same minor loop.

REFERENCES:
patent: 3812480 (1974-05-01), Kish et al.
patent: 4027283 (1977-05-01), Tang
patent: 4090251 (1978-05-01), Flannigan et al.

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