Non-data reversing bubble transfer switch for contiguous disks

Details Non-data reversing bubble transfer switch for contiguous disks Non-data reversing bubble transfer switch for contiguous disks

1980-12-22

1983-09-06

Muffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Plural interacting paths

365 36, G11C 1908

Patent

active

044033052

ABSTRACT:
An improved non-data reversing one-way bubble transfer switch for contiguous disks is disclosed. The switch has a conductor arrangement in which one edge of the conductor is substantially concentric with and overlapping with the major loop which is in the form of a plurality of scallops. The major loop extends in a direction substantially transversely to one of the three primary crystallographic axes in the bubble material so as to have a propagation track with a high margin on one side and a low propagation margin on the other side. The tip of a minor loop end portion is aligned substantially concentric with the scalloped concave portion of the major loop. This switch has a maximum bias field margin and a maximum phase margin.

REFERENCES:
patent: 3967002 (1976-06-01), Almasi et al.
patent: 4264985 (1981-04-01), George et al.
patent: 4283776 (1981-08-01), Nelson
IBM Technical Disclosure Bulletin, vol. 23, No. 6, Nov. 1980, "Data Rearrangement Switch", by G. E. Keefe and E. W. Pugh, (pp. 2595-2597).
The Bell System Technical Journal, vol. 59, No. 2, Feb. 1980, pp. 229-257, "Design of Bubble Device Elements Employing Ion-Implanted Propagation Patterns".

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