| 摘要 |
In a noncontact type IC card (11), writing of data is executed when a voltage level of an operating voltage generated from a received power wave is a level suitable for the writing of the data to a nonvolatile memory (105), and it is recognized that the data write operation is normally terminated when the voltage level of the operating voltage is the level suitable for the writing of the data to the nonvolatile memory (105) even after the writing of the data. <IMAGE>
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