| 摘要 |
PURPOSE:To obtain a solid discrimination device having high secrecy, by obtaining a DC power source and a clock signal with the energy of an oscillation energy field formed in a space by a high frequency electromagnetic field or a ultrasonic wave and then actuating a data processing circuit. CONSTITUTION:When a card device 2 accesses a field 1 of oscillation energy (high frequency electromagnetic field of ultrasonic wave) which is previously formed in a space, the oscillation energy is absorbed by a wave receiver 3. The energy of the receiver 3 is converted into a DC by a rectifying circuit 4 to be used as a DC power source and at the same time frequence divided or multiplied by a frequency converting circuit 5 to be turned into a clock signal of a data processing circuit 6. An input code like a data, an instruction, etc. supplied from an external input/output device is fed to the circuit 6 via an input coupler 7 to be processed in accordance with a program procedure which is set previously and transmitted to the external input/output device via an output coupler 8. |
