Apparatus for communication with a radio-frequency tag, radio-frequency tag, radio-frequency communication system, and radio-frequency communication method

摘要

A radio-frequency communication system including a plurality of apparatus for communication with a radio-frequency tag, and at least one radio-frequency relay tag, wherein each of the apparatus for communication with a radio-frequency tag includes a transmitter portion configured to transmit to the relay tag a message writing command for writing on the relay tag a desired message to be transmitted to another apparatus for communication with a radio-frequency tag via the relay tag, and each relay tag includes a plurality of message storage portions provided to store the messages transmitted from the respective apparatus for communication with a radio-frequency tag.