公开(公告)号：US20180103221A1

公开(公告)日：2018-04-12

申请号：US15291917

申请日：2016-10-12

Applicant: OmniVision Technologies, Inc.

Inventor： Tiejun Dai ,  Jing Yin ,  Rui Wang

IPC: H04N5/365 ,  H04N5/3745

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.

公开(公告)号：US10547804B2

公开(公告)日：2020-01-28

申请号：US15291917

申请日：2016-10-12

Applicant: OmniVision Technologies, Inc.

Inventor： Tiejun Dai ,  Jing Yin ,  Rui Wang

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.