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Reading Bar Patterns of Conductive Ink Depicting Binary Information

IP.com Disclosure Number: IPCOM000076727D
Original Publication Date: 1972-Apr-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

James, RP: AUTHOR

Abstract

In this method utilizing conductive ink bar patterns, the counting of timing pulses or the reading at uniform velocities is not required.

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Reading Bar Patterns of Conductive Ink Depicting Binary Information

In this method utilizing conductive ink bar patterns, the counting of timing pulses or the reading at uniform velocities is not required.

The code pattern of conductive ink bars is illustrated in Fig. 2. In reading, the pattern is moved across the electrode configuration illustrated in Fig. 1, in the direction illustrated by arrow 10. In operation, a bar spans the long electrode 12 and either of the two short electrodes 14 and 16. In Fig. 3 is illustrated the voltage pulse patterns obtained when the pattern of Fig. 2 is moved across the electrode configuration. Voltage pulses 18 are obtained from electrode 16 and pulses 20 obtained from electrode 14 in combination with electrode 12. A pattern 22 of two closely spaced bars, having a spacing corresponding to the spacing of electrodes 14 and 16, can be used to illustrate a "1". A single bar 24 spaced from any other bar by a distance greater than the spacing between 14 and 16 can be used to depict a "0", as illustrated in Fig. 3.

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