Control of indicator lights in portable information handling system using ambient light sensors
US7501960B2 · kind B2 · utility
16Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2005 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Sep 13, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/3921
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved system and method for controlling the brightness of indicator lights used on portable information handling systems. Various embodiments of the invention optimize the output of the indicator lights in accordance with detected ambient light levels. The brightness of the indicator lights can be adjusted automatically in accordance with a fixed response curve or manually by user inputs. In some embodiments, the brightness is adjusted in accordance with user-designated preferences that are stored in a brightness preference table and correlated with detected ambient light levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.