Image sensor and a method for read-out of pixel signal
US10778926B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2019 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Jul 1, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Example embodiments relate to an image sensor and a method for read-out of pixel signal. One embodiment includes an image sensor. The image sensor includes an array of pixels for detecting light incident on the pixel. The image sensor also includes an in-pixel correlated double sampling (CDS) circuitry. The image sensor also includes a column line that extends along and is associated with a column of pixels in the array of pixels. The column line is configured to selectively receive a pixel signal from a pixel in the column. Further, the image sensor includes a voltage-drop correction line that extends along and is associated with the column of pixels. The voltage-drop correction line is configured to provide a correction voltage signal to a pixel in the column such that corrects for voltage drop of the pixel signal in read-out through the column line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.