Patent ID: 8172150
Filing Date: 2012-05-08
Classification: G06K

Abstract:
1. An Integrated Circuit (IC) card comprising: an input/output block that receives command data from an interface device; a central processing unit (CPU) in signal communication with the input/output block that performs a task corresponding to the received command data; a judgment block in signal communication with the CPU that judges whether a working time of the CPU reaches a reference time, after an input of the command data is completed; and a control block in signal communication with the judgment block that operates, responsive to an output of the judgment block, wherein the control block controls output of a S-block Waiting Time eXtension S(WTX) request via the input/output block without intervention by the CPU whenever the interface device connected to the IC card transmits a command to the IC card and the IC card is not able to respond to the transmitted command within a defined maximum waiting time.