| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multi-application IC card that enables switching without the transmission of a SELCT command and protects data stored in a RAM by applications from erasure when a plurality of started applications are switched for use. <P>SOLUTION: A command transmitted to the IC card 10 is analyzed in a command analysis part 110, which identifies an application 120 for processing the command, and is stored in a command storage part 111. An application switching part 130 measures time with a time measurement means 131, and switches applications to cause the application 120 identified by the command analysis part 110 to process the command received in the measured time. At the switching of the application 120, data used by the application executed are saved/returned to/from the RAM. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
