Method and apparatus for discriminating between true and false c

Details Method and apparatus for discriminating between true and false c Method and apparatus for discriminating between true and false c

1991-09-27

1994-05-31

Bartuska, F. J.

Check-actuated control mechanisms

Including means to test validity of check

By testing material composition

G07D 508

Patent

active

053161190

ABSTRACT:
There is provided a method and apparatus for discriminating between true and false coins wherein a coin satisfying both the electrical success conditions at their lowest levels is regarded as a false coin, and a coin satisfying at least one of the two electrical success conditions at a high level is regarded as a true coin.
According to the method discriminating apparatus is mounted relative to a predetermined passage along which a coin or the like to be discriminated passes, wherein true/false discrimination is carried out in accordance with whether or not the two or three different data detected from the coin and developed on a two- or three-dimensional coordinate system falls within a predetermined two- or three-dimensional function closed area. The apparatus includes: a coin passage along which a coin to be discriminated passes; exciting units mounted relative to the coin passage for exciting the coin passing along the coin passage; detecting units for detecting the state of the coin excited by the exciting units; and a unit for discriminating the coin between true and false in accordance with whether or not the data detected by the detecting units falls within a predetermined two or three-dimensional function closed area on a predetermined two or three-dimensional coordinate system.

REFERENCES:
patent: 5167313 (1992-12-01), Dobbins et al.

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