Image sensor including digital pixel
US10972692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2019 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Oct 11, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/79
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor includes a plurality of pixels. Each of the plurality of pixels includes a photodetector that includes a photoelectric conversion element that outputs a detection signal in response to light incident thereon, a comparator that compares the detection signal of the photodetector with a ramp signal and outputs a comparison signal in response thereto, a plurality of first memory cells that store a first counting value corresponding to a first voltage level of the detection signal using the comparison signal of the comparator and output the first counting value through a plurality of transmission lines, and a plurality of second memory cells that store a second counting value corresponding to a second voltage level of the detection signal using the comparison signal of the comparator and output the second counting value through the plurality of transmission lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.