CCD output processing stage that amplifies signals from colored pixels based on the conversion efficiency of the colored pixels
US6774941B1 · kind B1 · utility
226Cited by
17References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 26, 1999 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Oct 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/75
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The reduced signal-to-noise ratio of colored pixels that results from a lower conversion efficiency is eliminated by utilizing a programmable gain amplifier which individually applies a gain to the output of each colored pixel so that the maximum signal level of each colored pixel is matched to the maximum input range of an A/D converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.