| 摘要 |
<p>An active tag is provided, including a memory for storing identifier (ID) data; a micro control unit (MCU), and a modulator. The MCU receives the ID data, and generates first data that includes the received ID data and a first command, and then generates second data that including the received ID data and a second command. The modulator communicates with the MCU, generates a first radio frequency (RF) modulated signal in response to the first data, outputs the first RF modulated signal via an antenna, generates a second RF modulated signal in response to the second data, and outputs the second RF modulated signal via the antenna.</p> |
