| 摘要 |
<P>PROBLEM TO BE SOLVED: To conduct efficient information communication with a simple configurations. <P>SOLUTION: When power is supplied to a non-contact IC card, a flux is generated by applying an electric current to a coil 215 that serves as an antenna for a reader writer, and a right-handed current flows through a coil 130 that serves as an antenna for the non-contact IC card. However, a part of the flux that is generated by the coil 215 and penetrates the coil 130 further penetrates a conductor plate 301 that constitutes a capacitor, and a right-handed eddy current is generated on the conductor plate 301. The strength of the current that flows through the coil 130 is reduced by the flux generated with the eddy current. Capacitor are disposed on the non-contact IC card so that the strength of the current that flows through the coil 130 is not reduced by the eddy current. <P>COPYRIGHT: (C)2008,JPO&INPIT |
