Device for detecting road surface condition
US4781465A · kind A · utility
36Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1987 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Jan 9, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2401/17
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for detecting road surface condition in front of a running car by radiating a directional beam or beams onto a point or points on the road surface at predetermined distance or distances in front of the car body and receiving the reflected beam or beams from said point or points, and determining the road surface condition based on the measurement of the distance or distances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.