Driving an image sensor with reduced area and high image quality
US7521659B2 · kind B2 · utility
2Cited by
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23Claims
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Assignee
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Key dates
| Filing date | Jul 5, 2007 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Jul 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/778
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A solid-state image-sensing device includes a pixel array and an averaging unit. The pixel array includes a matrix of pixels and includes a respective output line for each of a plurality of pixel groupings such as for each column of pixels. The averaging unit receives respective signals from first and second output lines of the pixel array to generate a pulse width signal that indicates an average of such respective signals. A respective signal of the first output line is generated from combining photocurrents from a first set of at least two pixels sensing a same first color in the pixel array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.