Method and apparatus for increasing retention time in image sensors having an electronic shutter
US6522357B2 · kind B2 · utility
29Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/532
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a pixel having an electronic shutter, a method of increasing the retention time of the electronic shutter is disclosed. A reset signal is employed to drive a diode node to a predetermined voltage immediately after integration is completed. A sample signal is employed to control a pass gate. The sample signal includes a state where the sample signal is a negative voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.