Browse Prior Art Database

Static Badge Reader

IP.com Disclosure Number: IPCOM000083847D
Original Publication Date: 1975-Aug-01
Included in the Prior Art Database: 2005-Mar-01
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Bealle, FJ: AUTHOR

Abstract

This device relates to a custom system badge reader and provides an apparatus which minimizes the number of elements required to read data from a badge or card without moving the badge.

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Static Badge Reader

This device relates to a custom system badge reader and provides an apparatus which minimizes the number of elements required to read data from a badge or card without moving the badge.

A matrix of photosensors and photosources (for example, long and slender solar cells) is used to detect the passage of light through holes, or the blockage of light by marks, where light emanates from rows of line sources such as long, slender neon tubes, incandescent wires, etc., illuminated in a preset sequence.

This apparatus provides the advantages that, (a) it uses 12 photosensors and 80 tubes or light bulbs to read 960 bits statically, whereas 960 photosensors would be needed if only one light source were used for static reading; (b) no lens or fiber optics are needed; and (c) it uses neon tubes having negative resistance slope which can be used to make a self-scan array of neon tubes.

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