Collision avoidance using auditory data
US9873428B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2015 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Mar 31, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2554/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A controller for an autonomous vehicle receives audio signals from one or more microphones. The outputs of the microphones are pre-processed to enhance audio features that originated from vehicles. The outputs may also be processed to remove noise. The audio features are input to a machine learning model that classifies the source of the audio features. For example, features may be classified as originating from a vehicle. A direction to a source of the audio features is determined based on relative delays of the audio features in signals from multiple microphones. Where audio features are classified with an above-threshold confidence as originating from a vehicle, collision avoidance is performed with respect to the direction to the source of the audio features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.