Optical sensing device for detecting optical features of...

Check-actuated control mechanisms – Control mechanism actuated by check – other than coin – which... – By pliant currency

Reexamination Certificate

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C250S556000

Reexamination Certificate

active

10747825

ABSTRACT:
An optical sensing device for detecting plural optical features of valuable papers is provided that comprises first and second photocoupers5and6or9and10positioned in the vicinity of and on the opposite sides of a passageway13for guiding the valuable paper64. Each of first and second photocouplers5and6or9and10has a light emitting element20, 22, 30, 32for emitting a light, and a light receiving element21, 23, 31, 33for selectively receiving the light from the light emitting element20so that each light receiving element21, 23, 31, 33can receive lights reflected on and penetrating the valuable paper64for detection of multiple optical features from the valuable paper64. Thus, the optical sensing device can derive plural optical scanning patterns by means of less number of light emitting and receiving elements to improve accuracy in valuable paper validation; can pick out optical patterns for different colors printed on valuable paper by means of plural lights of different wavelength irradiated on a same scan line or area on valuable paper; and can utilize inexpensive light emitting and receiving elements to reduce cost for manufacture.

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patent: 2001-093017 (2001-04-01), None

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