| 摘要 |
<p>A cellphone sound wave transmission receiving device. The receiving device comprises more than one microphone. Different microphones are respectively responsible for receiving sound wave signals from different directions. There is a certain distance between two different microphones, and there is a certain angle between two different microphones. When two microphones receive the same signal, the same signal is inputted; and when the two microphones receive different signals, the signal received by the microphone in the horizontal position is preferentially inputted. The distance between the two microphones is between 80 mm and 150 mm. The angle between the two microphones is between 135º and 150º.</p> |
