Pixel with switchable high gain and high capacity modes
US9686483B2 · kind B2 · utility
2Cited by
1References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 7, 2016 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Jan 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided herein is a novel pixel circuit for image sensors such as IR ROIC image sensors. The design provides a switchable pixel with two modes. In the first mode, the pixel performs in-pixel correlated double sampling to remove reset noise. In the second mode, the pixel is configured in a high-capacity mode to avoid saturation. The pixel may be dynamically switched between modes, for example in response to lighting conditions in the scene to be imaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.