| 摘要 |
PURPOSE:To eliminate or reduce a power supply and an oscillating element, by providing the fields of a high-frequency electromagnetic field, magnetic field, ultrasonic wave, etc. for the oscillating energy in a space and then absorbing this oscillating energy. CONSTITUTION:The energy is received by a wave receiver 9 from a field 8 of oscillting energy formed in a space and then rectified by a rectifying circuit 10 to drive a frequency dividing or multiplying circuit 11, a code data producing circuit 3 and a modulating circuit 12. At the same time, a carrier wave is obtained directly from the AC component of the field 8 of the oscillating energy received by the receiver 9 or after division or multiplication performed through the circuit 11. This carrier wave is applied to a modulating circuit 12. Then a clock signal obtained in the same way is applied to a code data producing circuit 3 such as a microcomputer, etc. The output data of the circuit 3 is applied to the circuit 12 to give modulation to the carrier wave. This modulated carrier wave is transmitted to the outside through a coupler 13 like an antenna, etc. |
