Electro-optical sensor
US7620212B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2003 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Apr 1, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/45
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems are provided that extend the functionality of electro-optical sensors. A device has a multiple light sources, a light detector, and a processor configured to operate the light sources and the light detector to perform distinct functions. At least one of the distinct functions includes a biometric identification function in which light is propagated from the plurality of light sources through presented material. The propagated light is received with the light detector, with the presented material being identified from the received light. Another of the distinct functions includes a nonidentification function performed with the light sources and the light detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.