Registers – Coded record sensors – Particular sensor structure
Patent
1995-05-04
1997-04-08
Hajec, Donald T.
Registers
Coded record sensors
Particular sensor structure
235463, G06K 710
Patent
active
056190271
ABSTRACT:
A bar code symbology employs symbol characters that are 13 modules wide and employs 4 bars, all of the bars being 1-wide bars. Three of the symbol characters are used as a stop character, a start character and a numeric compression start character. The start/stop characters have a particular bar/space pattern to allow standard bar code readers to determine the state of optical focus of an electro-optical input device in the reader. The numeric compression start character, and a numeric compression latch character, initiate a numeric compression method that allows three symbol characters to encode five numeric data characters. Shift and latch symbol characters allow the full ASCII and extended ASCII characters to be encoded under the symbology of the present invention. The symbology employs a single error detection character generated by a prime modulo 53 method.
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Hajec Donald T.
Intermec Corporation
Le Thien Minh
LandOfFree
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