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Field Accessed, Conductorless Data Switch

IP.com Disclosure Number: IPCOM000051846D
Original Publication Date: 1981-Mar-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue

IBM

Related People

Authors:
Tao, LJ [+details]

Abstract

Conductorless data switch designs for field-accessed bubble devices are shown in Figs. 1 and 2. In Fig. 1, the switch 10 has a loop of four C bars 12, 14, 16 and 18 containing five bubbles. A passive replicator 20 is linked to the switch 10 by C-bar 22 and to the data input channel containing C-bars 24, 26 and 28. Clockwise rotation of the drive field does not switch any bubble into the data input channel. Reversing the drive field when a bubble is positioned near the passive replicator for one cycle of counterclockwise rotation followed by two cycles of clock wise rotation causes a bubble to be replicated and pass into the data input channel. This design has an average writing time of 2 cycles, i.e., 1 cycle to write a ""0'' and 3 cycles to write a ""1.''