System for detecting a foreign object attached to a bill passing through a bill validator
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United States of America Patent
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Aug 27, 2002
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N/A
app pub date -
Apr 20, 2000
filing date -
Apr 20, 2000
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Abstract
A bill validator for detecting the presence of a bill comprising a bill passageway having a first side and a second side, a light source positioned at the first side, the light source for emitting light across the passageway, a reflecting surface positioned at the second side, and a detector device positioned at the first side, the detector device for receiving light reflected from the reflecting surface.
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