DATA CARRIER AND DATA CARRIER SYSTEM

摘要

Command holding means holds both of a near field communication command for performing a near field communication with a reader/writer device and a proximity communication command for performing a proximity communication with the reader/writer device. When the reader/writer device makes an inquiry by using the near field communication command, a response signal is generated by using the near field communication command. When the reader/writer device makes an inquiry by using the proximity communication command, a response signal is generated by using the proximity communication command. Thus, it is possible to execute both of the near field communication and the proximity communication according to the use mode.