In-pixel correlated double sampling with fold-over detection
US10027917B2 · kind B2 · utility
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2References
12Claims
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Key dates
| Filing date | Oct 5, 2015 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Oct 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein are improved in-pixel correlated double sampling elements for photodetectors. The novel circuits and associated methods of the invention allow for accurate correlated double sampling while avoiding the inherent sampling errors that may occur in prior art in-pixel correlated double sampling techniques when bright or saturating signals are received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.