| 摘要 |
<p>Provided in the present invention is an audio signal transmission device. The device comprises an audio interface and a USB interface. The audio interface and the USB interface have connected therebetween a transformer. The USB interface is connected to an audio receiver device. The USB interface is also connected to an audio transmitter device. The audio interface comprises an audio output pin and a ground pin. The audio output pin comprises a left audio channel and/or a right audio channel. Because an audio signal is amplified by the transformer before the audio signal is received by the USB interface, the audio signal outputted from the audio interface is ensured to be correctly received by the USB interface. DTRAWING: Fig. 1: AA Audio interface BB Transformer CC USB interface</p> |
