| 摘要 |
An RFID reader/writer (10) includes a transmitter (11) that transmits a transmitted signal to an RFID tag and a receiver (12) that receives a received signal from the RFID tag based on the transmitted signal. The transmitter (11) transmits a carrier wave. The RFID reader/writer (10) includes a detector that detects a noise of the received signal received by the receiver (12), and a controller (20) that controls the transmitter and the detector such that the detector detects the noise included in the received signal, when the detector outputs the carrier wave transmitted from the transmitter (11) prior to the communication with the RFID tag. |
