Pixel circuit for global electronic shutter
US8153947B2 · kind B2 · utility
40Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2009 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Apr 16, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/8057
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor formed of an array of pixels, each pixel including a photodiode coupled between a first reference voltage and a first switch, the first switch being operable to connect the photodiode to a first node; a capacitor arranged to store a charge accumulated by the photodiode, the capacitor being coupled between a second reference voltage and a second node; a second switch coupled between the first and second nodes, the second switch being operable to connect the capacitor to the first node; and read circuitry coupled for reading the voltage at the second node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.