| 摘要 |
<P>PROBLEM TO BE SOLVED: To reliably delete data used by an application program when deleting the application program. <P>SOLUTION: A cellphone 1 having a non-contact type IC chip 107 includes: an application memory 11 for storing an IC application controlling the IC chip; a data memory 12 for storing data for the IC application; a presence information memory 13 for storing data presence information showing that the data are stored in the memory 12; a reception part 14 receiving the IC application to be deleted; a decision part 15 deciding whether the data presence information corresponding to the IC application is stored in the memory 13 or not; a data deletion part 16 deleting the data for the IC application when the data presence information is stored in the memory 13; and an application deletion part 17 deleting the IC application thereafter. <P>COPYRIGHT: (C)2010,JPO&INPIT |
