Wide dynamic range image sensor
US11050957B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 2018 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Oct 22, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/533
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor including pixels, each pixel including a photodetector and a circuit for reading out the quantity of charges collected by the photodetector at the end of a phase of charge collection by the photodetector. The image sensor further includes, for at least one of the pixels, a detection circuit capable, at least at two different times during the phase, of detecting whether the quantity of charges collected at the time by the photodetector of the pixel exceeds a threshold and, in the case where the quantity of charges collected at the time exceeds the threshold, of storing a first signal representative of the time and of resetting the photodetector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.