| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a noncontact IC card which causes malfunction even if modulation degree of a modulation circuit is increased by preventing interference of a circuit including the modulation circuit on a circuit including a decoding circuit and a clock generation circuit. <P>SOLUTION: The communication device comprises an antenna circuit 2 including a coil, the circuit 3 including the decoding circuit and the clock generation circuit, connected to the antenna circuit 2, and the circuit including the modulation circuit connected to the antenna circuit 2 through a wire of a system different from that of the circuit 3 including the decoding circuit and the clock generation circuit. <P>COPYRIGHT: (C)2007,JPO&INPIT |
