Improved fake currency detector using integrated...

G - Physics – 07 – D

Patent

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G07D 7/12 (2006.01)

Patent

CA 2559100

A currency genuineness detection system using plurality of opto-electronic sensors with both transmission and reflective (including fluorescence) properties of security documents is developed. Both detection sensing strategies utilise integrated response of the wide optical band sensed under UV visible along with optional near infra red light illumination. A security document is examined under static condition. A window signal signature is thus possible from photodetectors responses for various kinds of documents of different denominations, kinds and country of origin. A programmable technique for checking the genuineness of a security document is possible by feeding a unique code of the currency under examination

L'invention concerne un système de détection de l'authenticité de monnaie mettant en oeuvre une pluralité de capteurs optoélectroniques possédant des propriétés de transmission et réfléchissantes (notamment la fluorescence) de documents de sécurité. Les deux stratégies de détection mettent en oeuvre une réponse intégrée de la bande optique large détectée sous des UV visibles, conjointement avec un éclairage lumineux infrarouge proche facultatif. Un document de sécurité est examiné dans un état statique. Une signature de signal de fenêtre peut être obtenue à partir de réponses de photodétecteurs pour divers types de documents de diverses dénominations, de divers types et pays d'origine. Une technique programmable permettant de vérifier l'authenticité d'un document de sécurité consiste à alimenter un code unique de la monnaie examinée.

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