Invention Grant
US07990449B2 High dynamic range cascaded integration pixel cell and method of operation
有权
高动态范围级联集成像素单元和操作方法
- Patent Title: High dynamic range cascaded integration pixel cell and method of operation
- Patent Title (中): 高动态范围级联集成像素单元和操作方法
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Application No.: US12236987Application Date: 2008-09-24
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Publication No.: US07990449B2Publication Date: 2011-08-02
- Inventor: Eric R. Fossum
- Applicant: Eric R. Fossum
- Applicant Address: KY George Town
- Assignee: Aptina Imaging Corporation
- Current Assignee: Aptina Imaging Corporation
- Current Assignee Address: KY George Town
- Main IPC: H04N3/14
- IPC: H04N3/14 ; H04N5/335
Abstract:
A cascaded imaging storage system for a pixel is disclosed for improving intrascene dynamic range. Charges accumulated in a first capacitor spill over into a second capacitor when a charge storage capacity of the first capacitor is exceeded. A third capacitor may also be provided such that charges accumulated by said second capacitor spill over into the third capacitor when the charge storage capacity of the second capacitor is exceeded.
Public/Granted literature
- US20090021627A1 HIGH DYNAMIC RANGE CASCADED INTEGRATION PIXEL CELL AND METHOD OF OPERATION Public/Granted day:2009-01-22
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