| 摘要 |
A wireless communication data storing medium capable of effectively receiving carrier waves of different frequencies proximate to each other. A composite wave of a first carrier for supplying a source voltage and a second carrier for transferring data is received by a circuit. The composite wave is rectified to generate the source voltage, which is supplied to the internal circuits of the medium from a circuit. On the basis of the composite wave, an amplitude change corresponding to the data transferred by the second carrier is detected by a circuit. The data is extracted by a circuit on the basis of the amplitude change.
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