公开(公告)号：US11753142B1

公开(公告)日：2023-09-12

申请号：US16146364

申请日：2018-09-28

Applicant: Snap Inc.

Inventor： Yoav Ben-Haim ,  Scott Porter

IPC: B64C11/18 ,  B64C39/02 ,  B64U10/13 ,  B64U30/20 ,  G10K15/04 ,  B64C27/14

CPC classification number: B64C11/18 ,  B64C39/024 ,  G10K15/04 ,  B64C27/14 ,  B64C2220/00 ,  B64U10/13 ,  B64U30/20 ,  G10H2210/571

Abstract: Various mechanisms and methods for altering sound output from an unmanned aerial vehicle (UAV) are disclosed. The UAV can have a drive system comprising a motor or a plurality of motors, and a processor operatively coupled to the drive system to control operation of the drive system. The UAV can further have a plurality of propellers that are rotatably drivable by the drive system, the plurality of propellers having physical characteristics such that, when drivingly rotated to maintain the UAV in stable flight, a first of the plurality of propellers emits a first note, and a second of the plurality of propellers emits a second, different note, a combination of the first and second notes producing a consonant sound.