IC CARD, INFORMATION PROCESSING TERMINAL, TRILATERAL DATA COMMUNICATION SYSTEM, AND METHOD

摘要

An IC card receives data from a card reader/writer and transmits it via an external interface to a cellular terminal as it is or after converting it with an appropriate conversion rule or converting it into another packet structure. On the contrary, data received via the external interface from the cellular terminal is transmitted via a non−contact interface to the card reader/writer as it is or after converting it with an appropriate conversion rule or converting it into another packet structure. Thus, it is possible to perform non−contact data communication between the information processing terminal connected to the IC card and the card reader/writer.