| 摘要 |
<p>A radio communication apparatus includes a carriage path (7) through which a radio communication medium (10) is carried, a communication antenna (21) provided in the carriage path (7), and a detector (30) provided on an upstream side of the antenna (21) in a carrying direction of the moving radio communication medium (10). The detector (30) detects the passing radio communication medium (10). A radio main unit (20) detects the radio communication medium (10) by using the detector (30), and transmits a polling command to the radio communication medium (10) at a proper timing on the basis of a detection signal from the detector (30). Thereby, it is possible to transmit a polling command from the radio main unit (20) to the radio communication medium (10) at a proper timing when the radio communication medium (10) comes to a communication area (8) of the antenna (21).</p> |
