Symbol scanning system and method having adaptive pattern generation
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United States of America Patent
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Dec 26, 1995
Issued Date -
N/A
app pub date -
Nov 25, 1992
filing date -
Oct 21, 1988
priority date (Note) -
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Abstract
A symbol scanning system which adaptively changes scanning system parameters including light beam pattern and focus to improve barcode readability. The scanning system including; a scanner, responsive to coordinate control signals, for directing a light beam in a pattern at a symbol at a predetermined location, detecting a reflected portion of the light beam, and generating a feedback signal corresponding to the detected portion of the reflected light beam, a microprocessor, responsive to the feedback signal, for generating pattern control signals, and a pattern generator for generating the coordinate control signals in responsive to the pattern control signals and for determining the light beam pattern.
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