| 摘要 |
PROBLEM TO BE SOLVED: To provide a non contact communication system capable of supplying sufficient power and conducting signal transmission while suppressing the level of a carrier. SOLUTION: The non contact communication system is constituted of a questioner for transmitting a radio wave and a responder 25 having a function for receiving the radio wave, and regenerating the power from the radio wave. The questioner is provided with carrier oscillators 20a-20n for generating carriers whose frequencies are mutually different and modulators M1-Mn for modulating those carriers by the same modulation signal. Each modulated carrier is added, and radiated as a radio wave. Plural carriers have frequencies within the range of the selectivity of the responder 25. |
