G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 19/073 (2006.01)
Patent
CA 2615748
The invention concerns a scrambling electronic device adapted to be magnetically coupled with an inductive element (L3) of a contact-free external communication station (LEC). The scrambling device comprises active scrambling means (DB) adapted, in response to the magnetic field radiated by the external communication station (LEC), to generate a charge modulation capable of causing a collision with the charge modulation generated by the contact-free electronic device (CSC) when the latter is arranged relative to said scrambling electronic device in accordance with a selected relationship, said resulting collision disabling data exchange between the contact-free external communication station (LEC) and the contact-free electronic device (CSC).
Le dispositif électronique brouilleur est adapté à être couplé magnétiquement avec un élément inductif (L3) d'une station externe de communication sans contact (LEC). Le dispositif brouilleur comprend des moyens de brouillage (DB) actifs aptes, en réponse au champ magnétique rayonné par la station externe de communication externe (LEC), à engendrer une modulation de charge susceptible de provoquer une collision avec la modulation de charge engendrée par le dispositif électronique sans contact (CSC) lorsque celui-ci est disposé par rapport audit dispositif électronique brouilleur selon une relation choisie, ladite collision ainsi provoquée rendant inopérant l'échange d'informations entre la station externe de communication sans contact (LEC) et le dispositif électronique sans contact (CSC).
Oberthur Card Systems Sa
Robic
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