Rain sensor
US7646889B2 · kind B2 · utility
49Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2006 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Feb 2, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/56
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rain sensor provided in a vehicle includes a camera and a processor. The camera takes an image of a scene outside of the vehicle through a windshield of the vehicle with an infinite focal length. The processor detects rain based on a variation degree of intensities of pixels in the image from an average intensity of the pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.