Check-actuated control mechanisms – Including means to test validity of check – By testing material composition
Patent
1993-11-03
1996-01-02
Bartuska, F. J.
Check-actuated control mechanisms
Including means to test validity of check
By testing material composition
G07D 508
Patent
active
054800196
ABSTRACT:
The present invention provides a coin-identifying method that is fast and that can reject any counterfeit coin that closely resembles a genuine coin, or a counterfeit coin that has a distribution that partially overlaps into a genuine-coin identification region, without reducing the acceptance ratio of genuine coins. It also provides an inexpensive apparatus that utilizes this method. The method and apparatus of the present invention perform a identification in which a first region is set to define a comparison reference for values measured by a first sensor and a second sensor that detect characteristics of a coin, a second region is set in such a manner as to partially overlap the first region, a preliminary identification is performed using this second region to determine whether the coin is a counterfeit. If the identification result is such that the coin is not determined to be a counterfeit, the first region is then used for further identification.
REFERENCES:
patent: 5033603 (1991-07-01), Kai et al.
patent: 5078252 (1992-01-01), Furuya et al.
patent: 5263566 (1993-11-01), Nara et al.
Bartuska F. J.
Nippon Conlux Co., Ltd.
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