Capacitive data card and reader thereof

G - Physics – 06 – K

Patent

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Details

G06K 19/077 (2006.01) G06K 7/00 (2006.01) G06K 19/08 (2006.01) G07F 7/08 (2006.01)

Patent

CA 2240178

A data card having a storage region for storing capacitive data, and a reader thereof. A card (5) has a magnetic storage region (10) for storing magnetic data and a capacitive storage region (12). The capacitive storage region (12) is provided with a plurality of electrodes connected through fuses, and bit data are stored depending upon whether the fuses are blown or not. The data are read by detecting current flowing in circuits that are connected to the external electrodes by capacitive coupling.

L'invention porte sur une carte présentant une zone de stockage de données capacitives et sur le lecteur associé. Une carte (5) possède une zone de stockage (10) de données magnétiques ainsi qu'une zone (12) de stockage de données capacitives munie d'une série d'électrodes connectées par l'intermédiaire de fusibles de manière à ce que les données binaires puissent être enregistrées selon que les fusibles ont sauté ou non. La lecture des données se fait par détection des courants circulant dans des circuits reliés aux électrodes extérieures par couplage capacitif.

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