Invention Grant
- Patent Title: Solid state image sensing device which performs a linear conversion operation and a logarithmic conversion operation
- Patent Title (中): 执行线性转换操作和对数转换操作的固态图像感测装置
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Application No.: US11879699Application Date: 2007-07-17
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Publication No.: US07663683B2Publication Date: 2010-02-16
- Inventor: Shigehiro Miyatake
- Applicant: Shigehiro Miyatake
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Holdings, Inc.
- Current Assignee: Konica Minolta Holdings, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Sidley Austin LLP
- Priority: JP2006-196041 20060718
- Main IPC: H04N5/335
- IPC: H04N5/335

Abstract:
A solid state image sensing device includes an MOS transistor T2 that has a source thereof connected to a drain of an MOS transistor T1 being provided with a transfer gate which is connected to an embedded photodiode PD; an MOS transistor T5 that has a gate thereof connected to the drain of the MOS transistor T1; and a condenser that has a source thereof connected to the MOS transistor T5. When a linear conversion operation is performed in an entire range of luminance, the MOS transistor T2 works, serving as a switch for resetting, and at least when a logarithmic conversion operation is performed in a part of the range of luminance, the MOS transistor T2 works in a sub-threshold region.
Public/Granted literature
- US20080018766A1 Solid state image sensing device Public/Granted day:2008-01-24
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