G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 21/00 (2006.01) H05K 5/02 (2006.01)
Patent
CA 2731133
The invention relates to an electronic system comprising a printed circuit (30) contained in a package. The system comprises a protection device (32) comprising conducting tracks (74, P1, P2) carried by the printed circuit and each having a free end; a first integrated circuit (70) connected to the conducting tracks and adapted for detecting a variation in the capacitance seen by each conducting track; and a second integrated circuit (71), optionally merged with the first integrated circuit, comprising a configurable memory (80) for selecting certain of the conducting tracks. The second integrated circuit is adapted for determining that an authorized or unauthorized access has occurred on the basis of the detection of the variation of the capacitance seen by at least one of the selected conducting tracks.
L'invention concerne un système électronique comportant un circuit imprimé (30) contenu dans un boîtier. Le système comprend un dispositif de protection (32) comprenant des pistes conductrices (74, P1, P2) portées par le circuit imprimé et ayant chacune une extrémité libre; un premier circuit intégré (70) connecté aux pistes conductrices et adapté à détecter une variation de la capacité vue par chaque piste conductrice; et un second circuit intégré (71), éventuellement confondu avec le premier circuit intégré, comprenant une mémoire (80) configurable pour sélectionner certaines des pistes conductrices. Le second circuit intégré est adapté à déterminer qu'un accès autorisé ou non autorisé a lieu à partir de la détection de la variation de la capacité vue par au moins l'une des pistes conductrices sélectionnées.
Compagnie Industrielle Et Financiere D'ingenierie "ingenico"
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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