Solid-state image pickup element and camera system having mechanism for canceling potential drop on signal line
US8345126B2 · kind B2 · utility
1Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 2009 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | May 22, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel driving portion 102 can carry out first read drive with which a transfer element is turned OFF in accordance with a drive signal TG to output a signal at an output node, and second read drive with which the transfer element is turned ON in accordance with the drive signal TG to transfer signal charges to the output node, thereby outputting a signal at the output node. A pixel signal reading portion 103, 104 outputs a signal corresponding to a difference between the signal read out in accordance with the second read drive and the signal read out in accordance with the first read drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.