Method of adjusting electrical circuit parameters during manufacture of a bar code scanner
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United States of America Patent
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Mar 7, 1995
Issued Date -
N/A
app pub date -
Jan 18, 1994
filing date -
Oct 21, 1988
priority date (Note) -
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Abstract
A method of manufacturing a bar code reader of the type including a scanner for generating a moving light beam directed toward a target and sweeping the bar code symbol to be read. A photodetector receives the reflected light from such symbol, and processing circuitry determines whether the signal received represents a valid symbol. The processing circuitry has adjustable gain, bandwidth, and digitizer threshold characteristics which are set during the manufacturing process.
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