Patent ID: 7011252
Filing Date: 2006-03-14
Classification: G06F,G06K

Abstract:
1. An IC card capable of sending/receiving data by a plurality of data transfer methods and including a plurality of OSs respectively corresponding to said plurality of data transfer methods, comprising: transfer method determining means for determining, on the basis of externally received data, which of said plurality of data transfer methods is employed for data transfer with an external device; OS applicability determining means for determining whether or not a first data transfer method corresponding to a currently employed OS out of said plurality of data transfer methods accords with a second data transfer method determined by said transfer method determining means; and OS switching means for switching said currently employed OS to another OS out of said plurality of OSs when said OS applicability determining means determines that said first data transfer method does not accord with said second data transfer method, wherein one of said plurality of OSs is activated when power is supplied.