Invention Grant
US07773131B2 Solid state image sensing device with level fluctuation suppression
失效
具有电平波动抑制的固态图像感测装置
- Patent Title: Solid state image sensing device with level fluctuation suppression
- Patent Title (中): 具有电平波动抑制的固态图像感测装置
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Application No.: US11438585Application Date: 2006-05-22
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Publication No.: US07773131B2Publication Date: 2010-08-10
- Inventor: Masayuki Kusuda , Tomokazu Kakumoto
- Applicant: Masayuki Kusuda , Tomokazu Kakumoto
- 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: JP2005-150338 20050524; JP2006-106268 20060407
- Main IPC: H04N5/217
- IPC: H04N5/217
Abstract:
A level shifter (181) shifts a signal level of a noise signal produced from a pixel so that the signal level becomes close to a reference level, and then a level shifter (182) complements the noise signal whose level was shifted by the level shifter (181) by a signal level corresponding to the level shifted by the level shifter (181). After that, the differential amplifier (183) performs subtraction operation between the noise signal that has passed the level shifters (181, 182) and the image signal from the pixel, so as to output the image signal without noises.
Public/Granted literature
- US20060268371A1 Solid state image sensing device Public/Granted day:2006-11-30
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