| 摘要 |
<p>PURPOSE:To arrange coils on the same axis by reading or writing data through a data processing circuit which obtains a DC voltage and a data signal by an electromagnetic wave received by a first resonator and drives a second resonator by making the voltage obtained by a rectifier be a power source and the data signal be an input. CONSTITUTION:The first resonator is constituted of the coil 6 for transmitting power and the data and a capacitor 11 for resonance, and the second resonator is constituted of the coil 5 for reading and the capacitor 12 for resonance. The write of the data is performed by receiving a power transmission wave processed by amplitude modulation, frequency modulation or phase modulation by the first resonator through a detector 8, and the read of the data is performed through the second resonator driven by the output of a data processing circuit 9. Then, the coil 6 of the first resonator and the coil 5 of the second resonator are arranged on the same axis, and simultaneously, the resonant frequencies of two resonators are made different. Thus, since as for the read of the data, the frequency of the carrier wave of the data is made to be a value different from the frequency of the power transmission wave, the coils of both the resonators can be arranged on the same axis.</p> |
