Coin checking device for discriminating denomination of a coin a

Details Coin checking device for discriminating denomination of a coin a Coin checking device for discriminating denomination of a coin a

1987-12-23

1989-06-13

Rolla, Joseph J.

Check-actuated control mechanisms

Including means to test validity of check

By testing material composition

453 3, 73163, G07D 508

Patent

active

048384054

ABSTRACT:
A coin discriminating device which can carry out accurate coin discrimination free of error caused by drift and changes in the thermal characteristics of the detecting elements. The coin type is discriminated by detecting data on the magnetic characteristics of coins and comparing the detected data with reference data and also by computing the difference between the maximum and minimum values of the detected data and comparing the computed result with the reference value.

REFERENCES:
patent: 4234071 (1980-11-01), Le-Hong
patent: 4460004 (1984-07-01), Furuya
patent: 4492296 (1985-01-01), Dubey
patent: 4538719 (1985-09-01), Gray et al.
patent: 4572349 (1986-02-01), Furuya et al.
patent: 4718558 (1988-01-01), Castaneda
patent: 4749074 (1988-06-01), Ueki et al.

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