Multi-application contactless smart card

摘要

A multi-application contactless smart card system and method. The user may select application using selection mechanism located on the smart card or at the contactless reader. The selection means may be connected to the contact I/O pin of the processor of the smart card. In some embodiments, the processor of the smart card may read the user selection through the contact I/O pin during a simulated contact transaction, evoke the desired application and perform the contactless transaction. During the simulated contact transaction power up sequence is preserved by extracting power signals to the contact V DD pin from the RF signal. Alternatively, the state of the selection mechanism may be sampled continuously or at convenient time intervals, enabling further switching between applications during a single contactless session.