Invention Grant
- Patent Title: Suppression of row-wise noise in CMOS image sensors
- Patent Title (中): 在CMOS图像传感器中抑制行方向噪声
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Application No.: US11795274Application Date: 2007-05-21
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Publication No.: US08310569B2Publication Date: 2012-11-13
- Inventor: Trygve Willassen
- Applicant: Trygve Willassen
- Applicant Address: KY George Town, Grand Cayman
- Assignee: Aptina Imaging Corporation
- Current Assignee: Aptina Imaging Corporation
- Current Assignee Address: KY George Town, Grand Cayman
- Agency: Kramer Levin Naftalis & Frankel LLP
- International Application: PCT/US2007/069392 WO 20070521
- International Announcement: WO2008/150283 WO 20081211
- Main IPC: H04N5/217
- IPC: H04N5/217 ; H04N9/64 ; H04N3/14 ; H04N5/335 ; H01L27/00

Abstract:
Embodiments of circuits and methods for suppressing row-wise noise in the analog domain in an image sensing device. In one embodiment, a pixel sampling circuit includes a readout circuit that is connected to a plurality of pixels to receive analog signals from the pixels. The pixel sampling circuit also includes a noise correction circuit that provides a reference signal to remove at least a portion of the noise in the analog signals received from the pixels before the analog signals are converted into digital signals.
Public/Granted literature
- US20100053379A1 Suppression of Row-Wise Noise in CMOS Image Sensors Public/Granted day:2010-03-04
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