Patent ID: 7992783

Claim:
A mobile terminal having a rechargeable battery with a noncontact IC card function used for at least one service, comprising: a usage time period memory means for storing a time period for using the noncontact IC card function; a usage schedule judging means for judging whether or not the noncontact IC card function is scheduled to be used within a predetermined term based on the time period stored in the usage time period memory means; a lock setting memory means for storing a setting of whether or not to lock the noncontact IC card function; a lock controlling means for locking the noncontact IC card function based on the setting content stored in the lock setting memory means of whether or not to lock the noncontact IC card function; a battery remaining amount judging means for judging whether or not the battery remaining amount of the rechargeable battery is less than a predetermined threshold; and a lock releasing means for temporarily releasing the lock of the noncontact IC card function when a judgment is made by the usage schedule judging means that the noncontact IC card function is scheduled to be used within the predetermined term, the noncontact IC card function has been locked by the lock controlling means, and a judgment is made by the battery remaining amount judging means that the battery remaining amount is less than the predetermined threshold.