Low-noise, high dynamic-range image sensor
US10652493B2 · kind B2 · utility
3Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2018 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Nov 20, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sequence of control voltage levels are applied to a control signal line capacitively coupled to a floating diffusion node of a pixel to sequentially adjust a voltage level of the floating diffusion node. A pixel output signal representative of the voltage level of the floating diffusion node is compared with a reference voltage to identify a first control voltage level of the sequence of control voltage levels for which the voltage level of the floating diffusion node exceeds the reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.