Wireless portable device capable of performing various...

H - Electricity – 04 – L

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H04L 9/00 (2006.01) G06Q 20/00 (2006.01) G07F 7/10 (2006.01) H04L 9/32 (2006.01)

Patent

CA 2371134

A wireless communication system includes a multi-functional portable device and more than one host systems so as to accomplish various functions. The portable device performs at least one specific function with a host system and the host system has a transceiver and a host apparatus. Specifically, in order to achieve the purposes, the portable device includes a storage unit for storing at least a portion of information required in performing the specific function and a transceiver unit for transmitting the information to the host system in a form of an encrypted signal. The transceiver includes a control unit for decrypting the encrypted signal to reconstruct the information and a data interfacing unit for providing the reconstructed information to the host apparatus.

L'invention concerne un système de télécommunication sans fil, qui comprend un dispositif portable multifonctionnel et plusieurs systèmes hôtes permettant de mettre en oeuvre diverses fonctions. Le dispositif portable effectue au moins une fonction spécifique avec le système hôte, et le système hôte comporte un émetteur-récepteur et un dispositif hôte. Spécifiquement, pour ce faire, le dispositif portable comprend une mémoire pour stocker au moins une partie des informations nécessaires en vue de mettre en oeuvre la fonction spécifique, et un émetteur-récepteur pour transmettre les informations au système hôte sous forme de signal chiffré. L'émetteur-récepteur comprend une unité de commande pour déchiffrer le signal chiffré afin de reconstruire les informations, ainsi qu'une unité d'interface de données pour fournir les informations reconstruites au dispositif hôte.

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