| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a portable electronic device, an IC card, a data processing device, and a communication control method for the portable electronic device which can efficiently perform communication control. <P>SOLUTION: A portable electronic device has communication means, setting means, request means, and change means. The communication means performs communication with an external device. The setting means performs communication setting including initial setting of a communication speed used for communication with the external device by the communication means. The request means transmits data requesting the external device to change the communication speed via the communication means. On receiving a permission notification for communication speed change requested by the request means, the change means changes the communication speed with the external device by the communication means. <P>COPYRIGHT: (C)2013,JPO&INPIT |
