Patent ID: 11922093
Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 2:
3. The method of claim 1, wherein each of the acoustic signals carries a sending time; and
wherein determining the propagation characteristic of the acoustic signal in the acoustic signal set further comprises:
in response to receiving the acoustic signal sent by the terminal at each of the different positions, determining a receiving time of the acoustic signal sent by the terminal at the position and acquiring a sending time carried in the acoustic signal sent by the terminal at the position;
determining, according to the receiving time and the sending time of the acoustic signal sent by the terminal at the position, the propagation duration of the acoustic signal sent by the terminal at the position; and
determining the propagation direction of the acoustic signal by using the microphone array.