Active reset circuit for reset spread reduction in single-slope ADC
US9967496B2 · kind B2 · utility
30Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2016 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Jun 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor comprises a pixel circuit including a reset transistor and configured to output a pixel signal; and a differential comparator including a pixel input, a reference input, and a comparator output, wherein one of a source or a drain of the reset transistor is connected to the comparator output. In this manner, an active reset method may be incorporated in the image sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.