Browse Prior Art Database

Bubble Domain Alphanumeric Display

IP.com Disclosure Number: IPCOM000074577D
Original Publication Date: 1971-May-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Berger, BL: AUTHOR

Abstract

A magnetic domain bubble shift register chain 10 can be used to optically display alphanumeric figures.

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Bubble Domain Alphanumeric Display

A magnetic domain bubble shift register chain 10 can be used to optically display alphanumeric figures.

The portion of the magnetic shift register chain 10 contained in the dotted area 12 can be seen by an observer. The rest of the shift register 10 is blocked from view by an opaque screen. The data is written serially in the bubble positions 14 of the chain 10. The black spots indicate a position 14 containing a bubble, while the empty squares indicate those in which no bubble is stored. The data is stored in the bubble positions 14 behind the opaque screen, as shown in A, and moved when needed into the viewing area, as shown in B. When light is transmitted through the bubble domain material in the view area, the positions 14 containing the bubbles transmit more light than those not containing the bubbles. Therefore, the bubbles can be arranged within view so as to display any number of alphanumeric figures.

A single magnetic chain 16 having one storage zone 18 and three viewing areas 20 is shown in C. Obviously, one shift register chain can be arranged into any number of viewing areas and storage zones to obtain desired results.

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