Bar code scanner with automatic de-activation of scan upon bar code recognition
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United States of America Patent
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Jan 19, 1993
Issued Date -
N/A
app pub date -
Oct 24, 1991
filing date -
Jan 25, 1982
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A bar code scanner employs a light source such as a laser for generating a light beam to be directed along a path toward a bar code symbol to be read. A scanner such as a mirror driven by a motor moves the light beam along a scan line across the bar code symbol. A sensor detects the intensity of reflected light from the bar code symbol, and generates an electrical signal in response to this reflected light. A signal processor receives the electrical signal and produces a digitized signal representing the bar code symbol. Control circuit automatically de-energes the scan by shutting off at least one of the light source and the motor after the signal processor has produced a digitized signal representing a valid bar code symbol.
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