Electronic circuit for compensating a voltage level against a variation of temperature, and an image sensor including the same
US11792545B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2022 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Feb 23, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/779
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor including: a pixel array including first and second pixels connected to a column line; a row driver to provide the first pixel with a first selection signal based on a clamp voltage, and to provide the second pixel with a second selection signal based on a selection voltage, wherein the first pixel outputs a first output voltage in response to the first selection signal, and the second pixel outputs a second output voltage in response to the second selection signal, wherein the first and second output voltages are output as a pixel signal through the column line, wherein a voltage of the pixel signal corresponds to a voltage obtained by clamping the second output voltage with the first output voltage, and wherein a change in a voltage level of the first output voltage due to a temperature is compensated for by the clamp voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.