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Applications of bubble devices

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4 Author(s)
P. Bonyhard ; Bell Telephone Laboratories, Inc., Murray Hill, NJ, USA ; I. Danylchuk ; D. Kish ; J. Smith

The applications of magnetic bubbles that are currently seen as most attractive and the current status of development of such devices are considered. A major application is thought to occur in solid-state mass memories. An attractive form of organization is possible whereby relatively short access times can be achieved while using only a small number of read and write circuits. A repertory dialer memory, which has been chosen as a test vehicle, has been developed. The design and performance of the propagating circuits, the self-latching magnetic gates and the generator, which comprise the memory, are discussed. A novel area of application may be in pulse code modulation (PCM) switching networks. It is shown how a network operating as a PCM crossbar switch can be designed using bubbles. A circuit is described which can eliminate the delay associated with bubble propagation in such networks.

Published in:

IEEE Transactions on Magnetics  (Volume:6 ,  Issue: 3 )