Ambient luminosity level detection based on discharge times
US9074939B2 · kind B2 · utility
3Cited by
0References
6Claims
0Family size
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Key dates
| Filing date | Oct 10, 2013 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/4426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method wherein the updating of a counter is triggered when a photodiode reaches a discharge threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.