Optics: measuring and testing – Document pattern analysis or verification
Patent
1996-04-25
1998-08-04
Font, Frank G.
Optics: measuring and testing
Document pattern analysis or verification
356394, G06K 974, G01B 1100
Patent
active
057902453
ABSTRACT:
The paper examining apparatus examines the genuineness of a paper, such as a bank note, on the basis of its physical characteristics measured from the various points of the paper. The apparatus includes a carry distance detecting device, such as a rotary encoder, for detecting a carry distance of the paper; a reference value storing device for storing reference values corresponding to the nominal physical characteristics of the paper; a detection point setting device for setting a number and positions of detection points from which the detection values of the paper are detected; and a match detecting device for outputting a match signal whenever a set signal outputted by the detection point setting device matches a detection signal outputted by the carry distance detecting section. The paper examining apparatus also includes a radiating device, such as a light source, and a detection device for measuring the detection values of the paper; a compare device for comparing the detection values with that of the corresponding reference values; and an output device for deciding whether the paper is genuine on the basis of the comparison results of the compare device.
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Font Frank G.
Nippon Conlux Co., Ltd.
Stafira Michael P.
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