Pedestrian warning system providing adjustable acoustic indications
US9870703B2 · kind B2 · utility
13Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2016 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Jun 14, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/931
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Systems and methods are disclosed for a pedestrian warning system. An example disclosed method to simulate noise for an electric or noise-dampened vehicle to warning pedestrians includes producing a first sound at a first frequency range from a first sound generator located at a front of the vehicle. The method also includes producing a second sound at a second frequency range from a second sound generator located under the vehicle. Additionally, the example method includes adjusting the acoustic characteristics of the first and second sounds based on vehicle motion data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.