| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a communication device, a reader/writer, a communication system, and a communication method. <P>SOLUTION: The communication device includes: a noncontact communication part for conducting noncontact communication with the reader/writer; a storage part for storing data of every logic system corresponding to at least one encryption method and retransmission interval information of each communication command transmitted from the reader/writer for every encryption method; and a selecting part for selecting the retransmission interval information of each communication command of the encryption method to which the logic system specified by the reader/writer corresponds, from the storage part. The retransmission interval information selected by the selecting part is transmitted from the noncontact communication part to the reader/writer in the communication device. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
