Optical navigation systems and methods for background light detection and avoiding false detection and auto-movement
US9927915B2 · kind B2 · utility
72Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Sep 18, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Sep 18, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of operating an optical navigation system which includes disabling a light source to measure the ambient or external light level, comparing the measurement to a threshold level to determine whether the ambient light would cause false detection and light induced motion, and adjusting sensing parameter(s) to mitigate the effect of the ambient light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.