Road surface characterization based upon filter coefficients
US10766494B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2018 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2900/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system that determines a road surface profile based upon filter coefficient data from noise cancellation systems is disclosed. The system includes a filter coefficient monitoring module that is configured to receive a first set of filter coefficient data from an noise cancellation module. The system also includes a road surface profile module that is configured to receive an input representing a road surface type and generate a road surface profile based upon the road surface type and the first set of filter coefficient data and to store the road surface profile including a correspondence between the road surface type and the first set of filter coefficient data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.