Wireless communication data storing medium for receiving a plurality of carriers of proximate frequencies and a transmission/receiving method

摘要

A wireless communication data storing medium capable of effectively receiving carrier waves of different frequencies proximate to each other is disclosed. A composite wave (A) of a first carrier (f1) for supplying a source voltage (F) and a second carrier (f2) for transferring data (G) is received by a circuit (4, 5). The composite wave (A) is rectified to generate the source voltage (F), which is supplied to the internal circuits of the medium from a circuit (6). On the basis of the composite wave (A), an amplitude change (C) corresponding to the data (G) transferred by the second carrier (f2) is detected by a circuit (7). The data (G) is extracted by a circuit (9) on the basis of the amplitude change (C). <IMAGE>