| http://www.w3.org/ns/prov#value | - Although the aforementioned embodiments have shown the case where a microwave of about 10 GHz is used as a carrier, it is a matter of course that the present invention can be applied not only to the case where an electromagnetic wave of an extremely high frequency (EHF), or the like is used as a carrier but to the case where an electromagnetic wave such as light, an acoustic wave, an ultrasonic wa
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