Power transmission system, ic card and information...

H - Electricity – 02 – J

Patent

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Details

H02J 17/00 (2006.01) G06K 1/12 (2006.01) G06K 7/00 (2006.01) G06K 9/00 (2006.01) G06K 17/00 (2006.01) G06K 19/00 (2006.01) G06K 19/07 (2006.01) G07C 9/00 (2006.01)

Patent

CA 2215257

The present invention comprises a power transmission system, an IC card, and an information communication system using an IC card. In the power transmission system, power is transmitted by radio from the power transmission device to the IC card. In the IC card, the transmitted induced power is converted into a DC voltage, the transmitted induced power or a voltage corresponding to the induced power is detected, and a desired DC voltage to be supplied to the internal circuit is obtained in controlling impedance based on the detected induced power or the voltage corresponding to the induced power.

La présente invention consiste en un système de transmission d'énergie, une carte à circuit intégré et un système de communication d'information utilisant une carte à circuit intégré. Dans le système de transmission d'énergie, l'énergie est transmise par radio du dispositif de transmission d'énergie à la carte à circuit intégré. Dans la carte à circuit intégré, l'énergie induite transmise est convertie en une tension c.c., l'énergie induite transmise ou une tension correspondant à l'énergie induite est détectée et une tension c.c. souhaitée à fournir au circuit interne est obtenue en commandant l'impédance en fonction de l'énergie induite détectée ou de la tension correspondant à l'énergie induite.

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