System and method for correcting erroneous image signals from defective photosensitive pixels during analog-to-digital conversion
US7492394B2 · kind B2 · utility
6Cited by
9References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 6, 2001 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Feb 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/68
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and a method for correcting erroneous image signals from defective photosensitive pixels utilizes an analog-to-digital converter (ADC) architecture that corrects the erroneous image signals as image signals are being converted from analog signals to digital signals. The erroneous image signals are corrected by limiting the deviation of a given analog image signal from a previously processed image signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.