| 摘要 |
A wireless communication device (200) energized by an electromagnetic field produced by another device, including a near-field activated circuit (210) transmitting an output signal upon exposure to an energizing electromagnetic field, a sensor (230) having an output coupled to the near-field activated circuit, the sensor producing a signal on the output in response to sensing an environmental condition other than the energizing electromagnetic field, wherein the output signal of the near-field activated circuit changes when the sensor changes states.
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