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Single Level Column Access Structure for Bubble Lattice File

IP.com Disclosure Number: IPCOM000085553D
Original Publication Date: 1976-Apr-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Brown, BR: AUTHOR [+2]

Abstract

A single-level structure suitable for the accessing of a column of bubbles in a lattice is described. The structure consists of two notched conductors, as shown in the figure, wherein one conductor 10 is positioned on the left side of a column 12 of bubbles and the second conductor 14 is positioned on the right side of the column 12. The periodicity of conductors 10 and 14 are the same as the bubbles in column 12. Conductor 10 is offset 1/3 period from the equilibrium bubble lattice site, while conductor 14 is offset 2/3 period from the lattice site.

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Single Level Column Access Structure for Bubble Lattice File

A single-level structure suitable for the accessing of a column of bubbles in a lattice is described. The structure consists of two notched conductors, as shown in the figure, wherein one conductor 10 is positioned on the left side of a column 12 of bubbles and the second conductor 14 is positioned on the right side of the column 12. The periodicity of conductors 10 and 14 are the same as the bubbles in column 12. Conductor 10 is offset 1/3 period from the equilibrium bubble lattice site, while conductor 14 is offset 2/3 period from the lattice site.

The operation of the structure to translate the bubbles in the column downward is as follows. Current is passed downward through conductor 10 causing the bubbles in column 12 to move from position A to position B, the notched region of conductor 10. The current is shut off in conductor 10 and turned on in conductor 14 so that it goes upward. This causes the bubble to move from position B to position C, the notched region of conductor 14. When the current is shut off in conductor 14, the bubble moves from position C to position A' due to lattice restoring forces.

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