Invention Grant
- Patent Title: Solid-state image-pickup device, method for driving solid-state image-pickup device, and image-pickup apparatus
- Patent Title (中): 固态摄像装置,固态摄像装置的驱动方法以及摄像装置
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Application No.: US13325172Application Date: 2011-12-14
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Publication No.: US08687097B2Publication Date: 2014-04-01
- Inventor: Yusuke Oike
- Applicant: Yusuke Oike
- Applicant Address: JP
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP
- Agency: Sheridan Ross P.C.
- Priority: JP2006-274750 20061006
- Main IPC: H04N3/14
- IPC: H04N3/14

Abstract:
A CMOS image sensor in which column-parallel ADCs are mounted. Reference voltages Vref1 to Vref4 having slopes with different gradients and a reference voltage Vref5 are used. Additionally, a comparison circuit that compares an output voltage Vx of a unit pixel with any one of the reference voltages Vref1 to Vref4, and a comparison circuit that compares the one of the reference voltages Vref1 to Vref4 with the reference voltage Vref5 are included in a column processing circuit. High-resolution AD conversion is performed at a high speed by respective operations of the comparison circuits and an up/down counter.
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