Multiple protocol smart card communication device

G - Physics – 06 – K

Patent

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Details

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

Patent

CA 2376762

A communication link is established between the smart card and a computer using a valid smart card communication protocol. A smart card communication device determines the valid smart card communication protocol used by a smart card by polling a communication channel using a plurality of smart card communication protocols until a valid acknowledgement message is received. A radio frequency circuit is configured to communicate with the smart card using the valid smart card communication protocol. A digital signal processor having at least two demodulators demodulates an incoming data stream produced by the receiver in accordance with the valid smart card communication protocol m a dynamically reconfigurable manner.

On établit une liaison entre une carte à puce et un ordinateur à l'aide d'un protocole valide de communication de carte à puces. Un dispositif de communication à carte à puce détermine le protocole utilisé par la carte à puce en interrogeant un canal de communication utilisant plusieurs protocoles de communication jusqu'à réception d'un message d'AR valide. Un circuit RF est configuré pour communiquer avec la carte à puce à l'aide du protocole valide de carte à puce. Un processeur de signaux numériques comportant au moins deux démodulateurs démodule un flux entrant de données produit par le récepteur conformément au protocole valide de carte à puce par reconfiguration dynamique.

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