Graphical code readers that are configured for glare reduction
US9027835B2 · kind B2 · utility
0Cited by
10References
20Claims
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Key dates
| Filing date | May 28, 2013 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | May 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/146
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A graphical code reader may include means for capturing an image frame in accordance with a rolling shutter technique, and means for changing illumination while the image frame is being captured in order to perform glare correction. The graphical code reader may also include means for detecting characteristics of glare in a previously captured image frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.