| 摘要 |
A wireless IC tag system according to the present invention is provided with a wireless IC tag, a reader/writer device and a high-frequency signal output device. The reader/writer device outputs a first high-frequency signal. The high-frequency signal output device outputs a second high-frequency signal only during a period when the reader/writer device outputs the first high-frequency signal. The wireless IC tag is provided with an antenna, a power supply circuit and a communication circuit. The antenna receives the first and second high-frequency signals. The power supply circuit generates a power supply voltage from the first and second high-frequency signals. The communication circuit transmits and receives an information signal to and from the reader/writer device by utilizing the first high-frequency signal. |
