Method and device for estimating ambient light
US11448554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2020 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Jan 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for estimating ambient light at a display screen of a device. The method comprises determining one or more expected colour values of display screen output light, detecting light with a sensor positioned behind the display screen, determining one or more colour values of the detected light, determining a difference between the one or more expected colour values of the display screen output light and the one or more colour values of the detected light, and, from the determined difference, estimating a first portion of the detected light corresponding to the display screen output light and a second portion of the detected light corresponding to ambient light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.