Code symbol reading system having adaptive autofocus
US9104929B2 · kind B2 · utility
133Cited by
99References
16Claims
0Family size
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Key dates
| Filing date | Jun 26, 2013 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Jun 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1011
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for reading code symbols includes an imaging subsystem that includes a focusing module and an image processor. The image processor selects an initial, predicted focal distance for the imaging subsystem's focusing module with respect to a code symbol. The focal distance for each successfully decoded code symbol is stored in memory, and a weighted average of a pre-selected number of memorized focal distances is used to calculate the next initial, predicted focal distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.