Method and apparatus for improved coin, bill and other currency

Details Method and apparatus for improved coin, bill and other currency Method and apparatus for improved coin, bill and other currency

1990-10-10

1992-12-01

Bartuska, F. J.

Check-actuated control mechanisms

Including means to test validity of check

By testing material composition

324225, G07D 508

Patent

active

051673134

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 micorprocessor. 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 couterfeit 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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