Image sensor and method for operating an image sensor
US11647310B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2022 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Apr 1, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/772
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor includes a pixel array including a plurality of pixels each including a photosensitive element, and a readout circuit, wherein the pixels are arranged in at least two columns, within each column at least some of the pixels of the column are connected with a common column bus, respectively, for each column the readout circuit includes a first analog-to-digital converter (ADC) and a second ADC, for each column the first ADC is connected with the column bus, and for each column the second ADC is connectable with at least one of the column bus and a reference potential or the second ADC is connected with one optically shielded pixel of the pixel array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.