Method and apparatus for improved coin, bill and other currency

Check-actuated control mechanisms – Control mechanism actuated by check – other than coin – which... – By pliant currency

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194317, G07D 508, G07D 700

Patent

active

053300416

ABSTRACT:
Methods and validation apparatus for achieving improved acceptance and rejection for coins, bills and other currency items. One aspect includes modifying item acceptance criteria by creating and defining three-dimensional acceptance clusters, the data for which are stored in look-up tables in memory associated with a microprocessor. A second aspect involves fraud prevention by temporarily tightening or readjusting item acceptance criteria when a potential fraud attempt is detected. A third aspect relates to minimizing the effects of counterfeit items such as slugs on the self-adjustment process for the item acceptance criteria. A final aspect relates to calculation of a relative value of the acceptance criteria in order to conserve memory space and minimize computation time.

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Barlach (1990), "Payphone Coin Validation Using Pattern Recognition".

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