G - Physics – 07 – D
Patent
G - Physics
07
D
G07D 7/00 (2006.01) B42D 15/00 (2006.01) G06K 19/077 (2006.01)
Patent
CA 2338661
A safety paper with an embedded electronic circuit (1, 4, 7) is used to create more effective forgery-proof securities such as bank notes. In order to check authenticity, a carrier-frequency signal is transmitted to the circuit and an output signal representing an authenticating feature is emitted from said circuit in response to said input signal and detected.
Pour améliorer la sécurité contre la falsification de titres, par exemples, de billets de banque, on utilise un papier de sécurité intégrant un circuit électronique (1, 4, 7). Aux fins de vérification d'authenticité, on applique à ce circuit un signal d'entrée à courant porteur et on détecte un signal de sortie qui est émis par le circuit en réponse au signal d'entrée et qui représente une caractéristique d'authenticité.
Aktiengesellschaft Siemens
Brosow Joergen
Infineon Technologies Ag
Marks & Clerk
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