| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a contactless IC card and an IC card program, allowing optimization and improvement of efficiency of processing when performing multiple processing. <P>SOLUTION: The contactless IC card 10 has: an electromotive force sampling circuit 16 measuring amplitude of electromotive force induced by an external device that is the opposite party of contactless communication; and a CPU 20 predicting a change of the amplitude of the electromotive force supplied after this by the external device 30 to an elapsed time on the basis of a change of a measurement value of the electromotive force sampling circuit 16, determining execution start time of each task on the basis of prediction results and the amplitude of the electromotive force necessary for execution of each of the plurality of execution-scheduled tasks, and executing each the task. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
