Image analysis – Applications – Reading paper currency
Reexamination Certificate
2007-12-04
2007-12-04
Sherali, Ishrat (Department: 2624)
Image analysis
Applications
Reading paper currency
C356S071000, C340S005860, C194S302000, C209S534000, C235S379000
Reexamination Certificate
active
10772377
ABSTRACT:
A paper-like sheet discriminator has reference rollers for detection of a thickness of a paper-like sheet and a detection roller opposing the reference rollers. The paper-like sheet is passed between the reference rollers and the detection rollers and its thickness is detected from a displacement of the lever. Wavelength components less than a specified wavelength are extracted from a signal indicative of a thickness of the paper-like sheet passing through the respective thickness detection sensors and appearance positions on the paper-like sheet are determined at which the extracted wavelength components being less than the specified wavelength and having amplitude either not less than or less than a constant value appear. The thus determined appearance positions are collated with precedently stored appearance positions so as to discriminate genuineness/spuriousness of the paper-like sheet.
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Okuna Kenji
Yoshida Takashi
Antonelli, Terry Stout & Kraus, LLP.
Hitachi-Omron Terminal Solutions Corp.
Sherali Ishrat
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