Communications: electrical – Digital comparator systems
Patent
1973-12-27
1976-11-02
Urynowicz, Jr., Stanley M.
Communications: electrical
Digital comparator systems
340174SR, G11C 1114, G11C 1908
Patent
active
039900614
ABSTRACT:
Gapless, single-sided propagation structures are provided for implementing the continuous movement of magnetic bubble domains in both straight lines and around reverse direction turns under the control of a reorienting in-plane field. One embodiment comprises a closed loop of open-sided, joined hexagonal patterns having traps and dead end legs at the joined corners to cause transfer from one hexagonal pattern to the next, thus implementing continuous circulation around the loop and preventing backtracking. Another embodiment employs straight, parallel strips joined at their ends to form a loop. Bubble movement is promoted by a series of angled strip legs intersecting the main strips to provide sequentially advancing magnetic poles as the field vector rotates.
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patent: 3518643 (1970-06-01), Perneski
patent: 3534346 (1970-10-01), Bobeck
patent: 3534347 (1970-10-01), Bobeck
patent: 3644908 (1972-02-01), Bobeck
patent: 3689901 (1972-09-01), Bobeck
patent: 3778788 (1973-12-01), Bobeck et al.
patent: 3815107 (1974-06-01), Almasi
patent: 3828329 (1974-08-01), Fischer et al.
International Business Machines - Corporation
Urynowicz, Jr. Stanley M.
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