Logical operation circuit using magnetic bubbles

Details Logical operation circuit using magnetic bubbles Logical operation circuit using magnetic bubbles

1979-01-16

1980-04-29

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Logic

365 13, 365 43, G11C 1908

Patent

active

042009243

ABSTRACT:
A logical operation circuit for performing a desired logical operation by transferring at least one magnetic bubble on a plurality of magnetic bubble transfer routes paths employing chevron patterns, in which two neighboring ones of the magnetic bubble transfer routes provides with a first magnetic bubble transfer section which is formed by narrowed transfer routes or by magnetic bubble elongating means, so that a magnetic bubble transferred through one of the two magnetic bubble transfer routes is stably held across the two magnetic bubble transfer routes of the first magnetic bubble transfer section, while two magnetic bubbles transferred through the two magnetic bubble transfer routes on the two magnetic bubble transfer routes respectively. A second magnetic bubble transfer section formed by enlarging the space between the two neighboring magnetic bubble transfer routes along the transmission direction of said magnetic bubble is provided in which the magnetic bubble having passed through the first magnetic bubble transfer section is elongated in such a state as resting across both of the two magnetic bubble transfer routes, while the two magnetic bubbles are held on the enlarged two neighboring magnetic bubble transfer routes respectively. The magnetic bubble or bubbles be derived from at least one of the two magnetic bubble transfer routes or from another magnetic bubble transfer route coupled with the elongated magnetic bubble as a logical output corresponding to a desired logical operation with respect to the state of input of the magnetic bubble to the two magnetic bubble transfer routes.

REFERENCES:
patent: 3723716 (1973-03-01), Bobeck et al.
patent: 3820091 (1974-06-01), Kohara

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