Coin discriminator
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United States of America Patent
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Nov 10, 1998
Grant Date -
N/A
app pub date -
Jun 17, 1996
filing date -
Dec 17, 1993
priority date (Note) -
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Abstract
A method of categorizing coins/tokens by energizing detect coils with a single pulse detecting the back EMF curve of the decaying pulse information, analyzing the unmodified back EMF curve to extract therefrom a number of variables and processing those variables to provide values proportional to the variables, and comparing the values of the coin/token to at least one of a number of reference values to determine into which of a number of predetermined categories the coin/token falls.
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