Laser scanning system and scanning method for reading bar codes
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United States of America Patent
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Aug 10, 1993
Issued Date -
N/A
app pub date -
Jun 14, 1991
filing date -
Oct 21, 1988
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system for reading bar code symbols or the like, including one- or two-dimensional bar code symbols having a scanner for generating a laser beam directed toward a target and producing a narrow first raster scanning pattern that enables the user to manually aim and direct the beam to the location desired by the user and a second raster scanning pattern that increases in height which sweeps an entire symbol to be read, and a detector for receiving reflected light from such symbol to produce electrical signals corresponding to data represented by such symbol.
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