Paper money identification method and device
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United States of America Patent
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-
Jan 20, 2004
Grant Date -
N/A
app pub date -
Jun 2, 2000
filing date -
Jun 7, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A paper money identification method and apparatus which can detect when paper money being conveyed slips and identify the paper money according to its slip. A roller pulse synchronized with the rotation of pushing rollers for pushing the paper money to conveying belts is generated by an encode plate and an interrupter, the generated roller pulse and a motor pulse synchronized with the rotation of a motor for driving the conveying belts are compared for their pulse widths, and when there is a difference between their pulse widths, it is detected that the paper money has slipped. And, a feature of the paper money is detected in synchronization with the roller pulse, and the paper money is identified according to the detected feature.
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