| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a radio tag communication device capable of performing information communication with a plurality of radio tags in parallel. <P>SOLUTION: The radio tag communication device includes: a received signal processing section 54 for separating the response signals from a plurality of the radio tags 14 included in received signals on the basis of the received signals received by a plurality of antennas 18 from a predetermined relationship; and an information communication control section 50 for performing first communications with a plurality of the radio tags 14 in parallel and reducing radio tags 14 targeted for second communication, if the number of radio tags 14 is determined to be more than the separable maximum number when the received signal processing section 54 separates the response signals from a plurality of the radio tags 14 included in the received signals corresponding to the first communication. With this configuration, suitable information communication can be continued with a plurality of the radio tags 14 by reducing the number of the radio tags 14 targeted for the second communication subsequent to the first communication. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
