G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 9/18 (2006.01) G06K 7/10 (2006.01)
Patent
CA 2097361
ABSTRACT OF THE DISCLOSURE 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; a pattern generator for generating the coordinate control signals in responsive to the pattern control signals and for determining the light beam pattern; and signal processing circuitry, including drive and control units, for adjusting gain, bandwidth, and digitizer threshold levels. - 89 -
Bard Simon
Barkan Edward
Bridgelall Raj
Goren David
Katz Joseph
Kirby Eades Gale Baker
Symbol Technologies Inc.
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