Photoelectric conversion device and imaging system
US7741593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2009 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Jan 27, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A photoelectric conversion device comprises: a clipping unit including a MOS transistor which has a source connected to a signal line and a drain being connected to a power supply, and the clipping unit clipping an electric potential of the signal line to an electric potential corresponding to an electric potential of the source; a holding capacitance which has a first electrode and a second electrode, the first electrode being connected to a gate of the MOS transistor, and the holding capacitance holding at least a voltage transferred to the signal line while the charge-voltage converter has been reset; and a shift unit which shifts an electric potential of the second electrode in a direction such that the electric potential of the second electrode comes close to a level to be transferred to the signal line while the charge-voltage converter has been reset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.