Systems and methods for tuning propeller noise
US10714069B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 2016 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Dec 31, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64U50/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present disclosure relates to devices, systems, and methods for controlling and/or augmenting acoustic sounds emitted from flight vehicles, such as unmanned aerial vehicles (UAVs). For example, while in flight, a UAV may emit a characteristic sound or tone (or a plurality of such tones), which may be a result of propeller and/or motor noise. To mitigate such noise from UAVs, disclosed embodiments may include acoustic resonators that may provide additional tones to complement the sounds or tones emitted from the UAV. Namely, the acoustic resonators may be shaped, adjusted, or otherwise controlled to emit additional tones that form pleasing intervals in combination with the characteristic tone(s) from the UAV.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.