Image readout circuit with capacitor that is shared between sample and hold and buffer
US8610046B2 · kind B2 · utility
3Cited by
4References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2011 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Jan 25, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A switched capacitor sample and hold buffer that can be used, for example, in a CMOS image sensor. The switched capacitor sample and hold circuit has large output swings, low noise and reduced capacitor area compared to the traditional switched capacitor approach.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.