| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reader apparatus capable of simultaneously reading a plurality of tag devices at one-time communication. <P>SOLUTION: The reader apparatus includes: a transmitter (antenna sub-device 30 performing both transmission and reception) having a transmitting means (RF transmission and reception circuit 31) for transmitting a reading signal to tag devices 60-80; and a plurality of receivers (antenna sub-devices 40, 50 dedicated to reception) having determining means (control circuits 42, 52) for receiving the reading signal transmitted by the transmitting means and determining a reception timing of response signals from the tag devices on the basis of the reading signal and receiving means (RF reception circuits 41, 51) for receiving the response signals from the tag devices on the basis of the timing determined by the determining means. <P>COPYRIGHT: (C)2010,JPO&INPIT |
