Check-actuated control mechanisms – Including means to test validity of check – By testing material composition
Patent
1994-09-26
1995-09-26
Huppert, Michael S.
Check-actuated control mechanisms
Including means to test validity of check
By testing material composition
194334, G07D 502, G07D 508
Patent
active
054527856
ABSTRACT:
The present invention relates to a coin discriminating apparatus for discriminating the thickness, material, diameter, and the like of a coin at high precision. A transmission coil (11) receives an AC signal generated by an AC signal generating unit (24) and applies an alternating magnetic field to a coin (C) to be discriminated. A reception coil (12) detects an electromotive force induced when the the transmission coil (11) applies the alternating magnetic field on the coin to be discriminated. A detection signal generating unit (27) generates a detection signal having a predetermined phase with respect to the AC signal generated by the AC signal generating unit (24). A phase detecting unit (26) phase-detects the electromotive force detected by the reception coil (12) in accordance with the detection signal generated by the detection signal generating unit. Discriminating units (28-31) discriminate at least one of the thickness, material, and diameter of the coin to be discriminated on the basis of a signal output from the phase detecting unit (26). Since the thickness, material, and diameter of the coin are independently separately detected, the denomination of the coin can be discriminated at high precision.
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Honma Masaru
Inagaki Shintaro
Iwamoto Takahisa
Kodama Noriyuki
Shioiri Ken
Anritsu Corporation
Huppert Michael S.
Lowe Scott L.
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