Invention Grant
- Patent Title: Pixel readout structure and timing to provide fixed pattern noise reduction in image sensors
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Application No.: US15291917Application Date: 2016-10-12
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Publication No.: US10547804B2Publication Date: 2020-01-28
- Inventor: Tiejun Dai , Jing Yin , Rui Wang
- Applicant: OmniVision Technologies, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: OmniVision Technologies, Inc.
- Current Assignee: OmniVision Technologies, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Christensen O'Connor Johnson Kindness PLLC
- Main IPC: H04N3/14
- IPC: H04N3/14 ; H04N5/235 ; H04N5/365 ; H04N5/378 ; H04N5/357 ; H04N5/3745 ; H04N5/369

Abstract:
Systems and methods for fixed pattern noise reduction in image sensors is disclosed herein. An example method may include simultaneously providing a pixel reference voltage of a pixel to a reference sampling capacitor and a signal sampling capacitor, decoupling the reference sampling capacitor from the pixel, providing a signal voltage to the signal sampling capacitor, and decoupling the signal sampling capacitor from the pixel.
Public/Granted literature
- US20180103221A1 FIXED PATTERN NOISE REDUCTION IN IMAGE SENSORS Public/Granted day:2018-04-12
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