Reader/writer, communication processing device, communication processing method, data management system and communication system

摘要

A communication processing device includes a control unit for, when receiving an address update request signal including a segment identifier for identifying a segment address of a recording unit from a reader/writer, holding the segment identifier in a RAM, and when receiving a readout request signal including an offset address having the segment as a reference from the reader/writer, transmitting to the reader/writer data recorded in a region specified by an address having the offset address contained in the readout request signal as offset with the segment address identified in the segment identifier as a reference of the regions of the recording unit.