Scanning device calibration system and method
US7433096B2 · kind B2 · utility
30Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2003 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Nov 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/407
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a scanning device includes a light source configured to selectively illuminate an area of interest and a light sensitive receiver configured to receive light from the light source and generate signals based on the received light. Control logic is configured to power the light source at a power level, generating mid-tone-scan signals at the light sensitive receiver. Calibration logic is configured to determine a calibration factor for a selected pixel based data including the mid-tone-scan signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.