Browse Prior Art Database

Bubble Splitter

IP.com Disclosure Number: IPCOM000074513D
Original Publication Date: 1971-May-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 20K

Publishing Venue

IBM

Related People

Albert, PA: AUTHOR [+3]

Abstract

At least two magnetic bubbles or cylindrical domains can be generated from a single source input by passing a current through a conductive loop arranged in a hollow "Y" shape placed flat upon a surface capable of sustaining the domain; such that, the highly localized fields created by the current passing through the loop will cause a bubble injected in the leg of the "Y" to expand into the entire area encompassed within the loop, whereupon means positioned in the arms of the "Y" can split and trap the bubble as two separate but equal bubbles.

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Bubble Splitter

At least two magnetic bubbles or cylindrical domains can be generated from a single source input by passing a current through a conductive loop arranged in a hollow "Y" shape placed flat upon a surface capable of sustaining the domain; such that, the highly localized fields created by the current passing through the loop will cause a bubble injected in the leg of the "Y" to expand into the entire area encompassed within the loop, whereupon means positioned in the arms of the "Y" can split and trap the bubble as two separate but equal bubbles.

The drawing illustrates the basic configuration of the apparatus capable of splitting the injected bubble. An expander loop 10 is formed in the shape of a hollow "Y" and has a pair of propagation coils 11 & 12 positioned adjacent to and partly encompassed by the leg of the "Y". These propagation coils are arranged to inject a normal sized and shaped bubble into the region of the expander loop 10 which, when energized, causes the injected bubble to expand and fill the entire region encompassed by the loop. Positioned in each arm of the "Y" are sensing and/or regeneration coils 14 & 15. These coils are energized after the bubble is expanded so that when the expander loop 10 is de-energized, the expanded bubble will contract and split with separate and equal portions of the expanded bubble being trapped under coils 14 & 15. The bubbles thus trapped in each arm of the "Y" under coils 14 & 15 can now be sensed and...