Check-actuated control mechanisms – Including means to test validity of check – By testing material composition
Reexamination Certificate
2008-03-26
2010-10-05
Nguyen, John Q. (Department: 3653)
Check-actuated control mechanisms
Including means to test validity of check
By testing material composition
C194S319000
Reexamination Certificate
active
07806248
ABSTRACT:
A system for validating a coin has a passageway through which the coin passes, in use; an oscillator having a component positioned relative to the passageway for the frequency and amplitude of oscillation of the oscillator to be varied, in use, by passage of the coin along the passageway; a period (or frequency) determining unit for determining the period (or frequency) of an oscillating signal provided by the oscillator when influenced by the coin and for supplying a determined period (or frequency) value; an amplitude determining unit for determining the amplitude of the oscillating signal provided by the oscillator when influenced by the coin and for supplying a determined amplitude value; and an assessing unit for assessing if the determined period (or frequency) and amplitude values lie in a predetermined window of period (or frequency) and amplitude values.
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Hunter Stephen John
Joubert Andre Malan
Beauchaine Mark
IPS Group Inc.
Nguyen John Q.
Townsend and Townsend / and Crew LLP
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