Enhanced coin discrimination systems and methods

Details Enhanced coin discrimination systems and methods Enhanced coin discrimination systems and methods

1998-03-09

2000-02-22

Olszewski, Robert P.

Check-actuated control mechanisms

Including means to test validity of check

By testing material composition

194334, G07D 508, G07D 502

Patent

active

060269464

ABSTRACT:
A parking meter contains both optical detection elements, to detect the presence and the diameter of inserted coins, and conventional coils which are inductively coupled to a passing coin and which load a RF oscillator. The optical detection information is used to control the sampling of the frequency of the oscillators which are loaded by the metal in the falling coins. This provides a synergistic way to combine optical detection with electromagnetic detection to achieve compact recognition templates which readily perform difficult discrimination. Addition of a temperature compensation algorithm makes the resulting system extraordinarily insensitive to temperature-dependent variation in the permeability of a falling coin.

REFERENCES:
patent: 3587809 (1971-06-01), Meloni
patent: 4267916 (1981-05-01), Black et al.
patent: 4326621 (1982-04-01), Davies
patent: 4356903 (1982-11-01), Lemelson et al.
patent: 4483431 (1984-11-01), Pratt
patent: 4601380 (1986-07-01), Dean et al.
patent: 5180046 (1993-01-01), Hutton et al.
patent: 5568855 (1996-10-01), Hoffman et al.
patent: 5687829 (1997-11-01), Churchman

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