Matrix arrangement of photodetector for use as a proximity sensor and ambient light sensor
US9952092B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Apr 26, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical sensor and optical system are disclosed. The optical sensor is disclosed to include a light source, a photodetector having a proximity sensing portion and an ambient light sensing portion, and a controller configured to implement a proximity sensing phase where the proximity sensing portion of the photodetector is utilized to obtain an incident light reading when the light source is ON and then implement an ambient light sensing phase where the ambient light sensing portion of the photodetector is utilized to obtain an incident light reading when the light source is OFF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.