CCD-based bar code scanner
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United States of America Patent
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-
Jul 10, 2001
Grant Date -
N/A
app pub date -
Nov 9, 1999
filing date -
Oct 29, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bar code scanning system for a conveyor system in which a first conveyor and a second conveyor are disposed apart from each other by a small gap region. A light emitting device is positioned in the gap underneath a top surface of the first and second conveyors, and the light emitting device shines light onto bar code labels on a bottom side of objects as the objects traverse from the first conveyor to the second conveyor. A light receiving device is also positioned in the gap, and the light receiving device receives reflected light from the bottom side of the objects due to the light being shined on the objects by the light emitting device. The gap is covered by a glass or plastic plate, so as to allow light to pass substantially therethrough.
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Cited Art Landscape
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