发明名称 PORTABLE COMMUNICATION MEDIUM, ELECTRONIC DEVICE, AND WIRELESS COMMUNICATION SYSTEM
摘要 <P>PROBLEM TO BE SOLVED: To deal with an increase in the speed of data transfer while maintaining the existing standards of an IC card. <P>SOLUTION: A host device 1 and the IC card 2 are provided with a connector for providing cable communication between the host device 1 and the IC card 2 by interconnecting the host device 1 and the IC card 2. Also, a wireless interface for providing wireless communication between the host device 1 and the IC card 2 is provided. Upon detecting the insertion of the IC card 3, the host device 1 confirms if the IC card 3 has a wireless interface; if it has, wireless data transfer is performed; otherwise, data transfer is performed using a wired interface. <P>COPYRIGHT: (C)2006,JPO&NCIPI
申请公布号 JP2006091958(A) 申请公布日期 2006.04.06
申请号 JP20040272885 申请日期 2004.09.21
申请人 SEIKO EPSON CORP 发明人 IIDA IZUMI
分类号 G06K17/00;G06K19/07;H04B5/02 主分类号 G06K17/00
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