Method and apparatus for improved coin, bill and other...

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

G - Physics

07

D

G07D 5/00 (2006.01) G07D 7/00 (2006.01)

Patent

CA 2069875

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 (CA, CB, CC), the data for which are stored in look-up tables in memory associated with a microprocessor (35). 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.

Méthodes et appareil de validation servant à améliorer l'acception ou le rejet des pièces de monnaie, des billets et d'autres articles monétaires. Un aspect comprend la modification du critère d'acceptation de l'article par la création et la définition de groupes d'acceptation tridimensionnels (CA, CB, CC), dont les données sont stockées dans des tables de consultation en mémoire dans un microprocesseur (35). Un second aspect concerne la répression des fraudes grâce à un resserrement ou une redéfinition momentané du critère d'acceptation quand on soupçonne une tentative de fraude. Un troisième aspect est relié à la minimisation des effets des articles de contrefaçon sur le critère d'acceptation, comme les pions dans les processus d'auto-ajustement. Une dernier aspect se rattache à la valeur relative du critère d'acceptation afin de conserver l'espace mémoire et de minimiser le temps de calcul.

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