Power transmission system, power transmission/communication...

G - Physics – 06 – K

Patent

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Details

G06K 19/077 (2006.01) G06K 7/00 (2006.01) G06K 7/08 (2006.01) G06K 19/07 (2006.01) G07F 7/08 (2006.01) H02J 5/00 (2006.01) H04B 5/02 (2006.01)

Patent

CA 2237657

The present invention provides a power transmission/communication system for transmitting power from a reader and/or writer to an IC card by an electromagnetic wave and performing transmission or transmission and reception of a communication signal between the reader and/or writer and the IC card by an electromagnetic wave, wherein the intensity of a magnetic field induced by the electromagnetic wave outputted from the reader and/or writer, i.e., the magnitude of power induced thereby and the time required to transmit the power are controlled.

La présente invention est un système de transmission d'énergie et de communication servant à transmettre un courant électrique d'un dispositif de lecture et/ou d'écriture à une carte à circuit intégré au moyen d'une onde électromagnétique et à transmettre uniquement ou à transmettre et à recevoir des signaux de communication entre ce dispositif de lecture et/ou d'écriture et la carte à circuit intégré au moyen d'une onde électromagnétique, dans lequel l'intensité du champ magnétique créé par l'onde électromagnétique produite par le dispositif de lecture et/ou d'écriture, c.-à-d. la puissance engendrée dans ce dispositif, et le temps requis pour transmettre l'énergie sont contrôlés.

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