Certified paper discriminating apparatus

Details Certified paper discriminating apparatus Certified paper discriminating apparatus

2007-07-24

2007-07-24

Mancuso, Joseph (Department: 2624)

Image analysis

Applications

Reading paper currency

C356S071000, C250S200000

Reexamination Certificate

active

10363016

ABSTRACT:
An apparatus configured to discriminate the genuineness of a certified paper by exposing the paper to a light source and transporting the paper through an environment of an alternating-current electromagnetic field. Light detectors detect the light reflected from the paper and the light emitted by a fluorescent ink on the paper and output a waveform corresponding to the intensity of the detected light, reflected light, and the detected emitted light as the paper is scanned. The resulting waveforms are used to discriminate the genuineness of the paper. The fluorescent light and reflected light can be optically split and directed to separate detecting devices. Furthermore, the alternating-current electromagnetic field can be controlled by a voltage controller and configured to be driven only when the sensor detects light from the fluorescent ink.

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