Image pickup apparatus providing a bias between different pixel areas during signal accumulation
US6946636B2 · kind B2 · utility
11Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Sep 1, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/803
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to reduce the noise in the readout signal, the invention provides an image pickup apparatus comprising a pixel including a photoelectric conversion unit for converting the incident light and accumulating a resulting electrical signal, and a transfer switch reading the electrical signal accumulated in the photoelectric conversion unit or a signal based on such electrical signal, and potential control means for maintaining the potential of the signal line higher than that of the photoelectric conversion unit while the photoelectric conversion unit accumulates the electrical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.