Drone noise reduction via simultaneous propeller modulation
US10118692B1 · kind B1 · utility
8Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2016 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Nov 30, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64U2101/67
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Techniques for using an unmanned aerial vehicle (UAV) to deliver a payload while generating an expected sound by the UAV during delivery may be provided. For example, during delivery or while in flight, propellers of different sizes that are associated with the UAV may be instructed to modulate at different rotational speeds to thereby generate an expected sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.