| 摘要 |
An exterior temperature sensor device according to an embodiment of the present invention comprises: a power supply voltage generator unit for generating a predetermined amount of DC voltage from a microphone actuation signal applied through a microphone terminal of an input/output port of an audio device; a self-temperature detector unit for generating a first sensor output signal having a waveform determined by the temperature of itself, based on a first sensor actuation signal of a predetermined frequency applied through a first audio output terminal of the input/output port of the audio device; and a temperature difference detector unit which is operated by the input of DC power, and which generates a second sensor output signal having a waveform determined by the temperature difference between the selfsame temperature and the temperature of a target, based on a second sensor actuation signal of a predetermined frequency applied through a second audio output terminal of the input/output port of the audio device. |
