| 摘要 |
<p>According to the present invention, a batteryless sensor display device includes: a power extracting part storing electricity energy, included in a voltage signal of a predetermined frequency, in a capacitor by collecting the electricity energy, and generating a DC power voltage from the electricity energy stored in the capacitor to output the DC power voltage; a modulation and demodulation part extracting a clock cycle and a symbol loaded into a voltage signal converted in an RF transponder, recovering a digital signal from the extracted symbol, and generating a clock signal from the extracted clock cycle; a digital data processing part performing a predetermined operation according to external data or external command loaded into the digital signal, generating a sensor control signal, generating a display control signal, or processing a predetermine operation relating to a detection signal; a sensor part generating the detection signal based on the sensor control signal and delivering the generated detection signal to the digital data processing part; a display controller operating an electronic paper display to display character or graphic data included in the display control signal; and the electronic paper display set in one state among at least two visually differentiated states while the power voltage is being applied following the operation of the display controller, and operating to maintain a set state while the power voltage is being blocked.</p> |
