Photo sensor array for banknote evaluation
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United States of America Patent
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Feb 28, 2012
Grant Date -
Aug 20, 2009
app pub date -
Aug 17, 2006
filing date -
Aug 19, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A banknote acceptor illuminates a banknote as it passes through an evaluation channel in a manner to locate the banknote in the width of the channel. A photo sensor array receives reflected light from the surface of the banknote and has a series of responsive divisions across an illuminated banknote. These divisions are sampled and analysed according to the banknote position to determine the authenticity of the banknote. Both apparatus and method steps are disclosed.
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