| 摘要 |
A wireless tag reader/writer comprises a plurality of communication antennas and a wireless tag reader/writer main unit. The communication antennas are arranged in a direction in which wireless tags pass and configured to transmit and receive signals to and from the wireless tags. The wireless tag reader/writer main unit processes signals to transmit to the wireless tags and signals received from the wireless tags. The wireless tag reader/writer unit changes the intensity of the electric waves to be radiated from the communication antennas, thereby selecting a wireless tag with which the wireless tag reader/writer is to communicate.
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