Invention Grant
- Patent Title: Solid-state image pickup device and control method thereof, and camera
- Patent Title (中): 固态摄像装置及其控制方法及相机
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Application No.: US12431831Application Date: 2009-04-29
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Publication No.: US08089545B2Publication Date: 2012-01-03
- Inventor: Toru Koizumi , Akira Okita , Katsuhito Sakurai , Isamu Ueno
- Applicant: Toru Koizumi , Akira Okita , Katsuhito Sakurai , Isamu Ueno
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2005-008124 20050114
- Main IPC: H04N5/335
- IPC: H04N5/335

Abstract:
A solid-state image pickup device having a pixel includes a photoelectric conversion unit generating and accumulating charge by photoelectric conversion; a charge holding unit being shielded from light, and being adaptable to accumulate a part of charge spilling from the photoelectric conversion unit in a period during which the photoelectric conversion unit generates and accumulates charge; an amplifying unit (SF-MOS) amplifying charge; a first transfer unit (Tx-MOS) transferring the charge accumulated in the photoelectric conversion unit to the amplifying unit; and a second transfer unit (Ty-MOS) transferring the charge accumulated in the first charge holding unit to the amplifying unit. A part of charge spilling from the photoelectric conversion unit is caused to flow into the charge holding unit and thereby extend the dynamic range, and at the same time, improve image quality.
Public/Granted literature
- US20090213260A1 SOLID-STATE IMAGE PICKUP DEVICE AND CONTROL METHOD THEREOF, AND CAMERA Public/Granted day:2009-08-27
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