Acoustic surface wave bubble switch

Details Acoustic surface wave bubble switch Acoustic surface wave bubble switch

1976-04-22

1978-07-25

Canney, Vincent P.

Static information storage and retrieval

Magnetic bubbles

365 16, G11C 1908

Patent

active

041033396

ABSTRACT:
An acoustic surface wave bubble switch in which a magnetic bubble domain traveling in a thin film magnetic platelet can be guided in alternate directions by application of an acoustic wave. An array of longitudinal magnetic elements in the form of single bars and bars combined to form a T configuration together with a rotating in-plane magnetic field causes the magnetic bubble to propagate across the magnetic platelet. One of the configurations of the magnetic element is a T with a second horizontal bar and the bubble will have equal attraction for either of the horizontal bars. At the proper time an acoustic wave can direct the bubble to propagate in the direction of a chosen horizontal bar thereby effecting a switching action.

REFERENCES:
patent: 3320596 (1967-05-01), Smith, Jr. et al.
patent: 3743851 (1973-07-01), Kohara
patent: 3836897 (1974-09-01), Marsh
"Bubble Domain Logic Devices" by Lin - IBM Tech. Dis. Bul., vol. 13, #10, 3/71.
Bubble Lattice File Using Double-Layer Structures-by Lin et al., IBM Tech. Dis. Bul., vol. 17, #8, 1/75.

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