DATA COMMUNICATION SYSTEM, DEVICE FOR EXECUTING IC CARD FUNCTION, CONTROL METHOD FOR THE DEVICE, AND INFORMATION PROCESSING TERMINAL

摘要

A communication device includes an analog unit that processes an analog signal received from an antenna unit which performs a contactless communication with an external device. The communication device also includes a wired interface that connects to an information processing terminal through a wire. In addition, the communication device includes a digital control unit that manages a communication mode set between the external device and the information processing terminal and controls a communication path between the external device and the information processing terminal according to a present communication mode.