| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a noncontact communication system capable of improving communication quality by largely expanding a communication area and a communication distance by simple and inexpensive improvement. <P>SOLUTION: The noncontact communication system for transmitting and receiving information between a storage medium 1 and a reader/writer device 2 without contact has a passive induction coil 31 which is disposed in substantially the same plane as antennas 11, 21 of one or both the storage medium 1 and the reader/writer device 2, and in which the passive induction coil 31 is wound around the antennas 11, 21. Also, the induction coil 31 is provided with a resonant circuit 32. One or a plurality of induction coils may be further provided between the storage medium 1 and the reader/writer device 2 and each intermediate induction coil may be provided with a resonant circuit. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
