Wireless communication for the magnetic field generating device, the magnetic field generation method for a wireless communication device and wireless communication

摘要

PROBLEM TO BE SOLVED: To suppress leakage of a signal magnetic field out of a predetermined region when power feeding and transmission/reception of a specific signal are done simultaneously.;SOLUTION: When a power feeding magnetic field of a predetermined frequency is supplied, an RF tag 12 obtains induction current induced by the supplied power feeding magnetic field as driving power. When a signal magnetic field of a frequency representing a specific signal is supplied, the RF tag 12 extracts the specific signal from induction current induced by the supplied signal magnetic field. A first coil 28 located in a region A generates the power feeding magnetic field. A second coil 30 located in the region A generates the signal magnetic field in such a way that the signal magnetic field does not leak out of the region A.;COPYRIGHT: (C)2014,JPO&INPIT