System and method for determining the state of a traffic signal
US8692996B2 · kind B2 · utility
6Cited by
7References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2011 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Feb 14, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/081
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for determining a state of a traffic signal. In one embodiment, a traffic signal state detector includes a lens, a color sensor, and a processor. The color sensor is configured to identify a plurality of colors of light directed to the color sensor by the lens, and a field of view of the color sensor is restricted based on dimensions of a traffic signal. The processor is coupled to the color sensor. The processor is configured to determine a color of light emitted by the traffic signal based on the colors of light identified by the color sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.