Coin selection method and apparatus

Details Coin selection method and apparatus Coin selection method and apparatus

1974-05-08

1976-04-27

Reeves, Robert B.

Check-actuated control mechanisms

Including noncontacting, relatively movable parts connected...

G07F 302

Patent

active

039528510

ABSTRACT:
A method and apparatus for use in identification of coins is disclosed in which a coin is passed through the electromagnetic field of an inductor in an oscillator circuit and the changes in both the frequency and amplitude of oscillation of said oscillator circuit are separately detected.

REFERENCES:
patent: 2985844 (1961-05-01), Wesch
patent: 3317016 (1967-05-01), Turillon
patent: 3453532 (1969-07-01), Gardiner
patent: 3467855 (1969-09-01), Rance
patent: 3576244 (1971-04-01), Ptacek et al.
patent: 3587809 (1971-06-01), Meloni
patent: 3653481 (1972-04-01), Boxall et al.
patent: 3739895 (1973-06-01), Fougere et al.

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