公开(公告)号：US09467634B2

公开(公告)日：2016-10-11

申请号：US14246294

申请日：2014-04-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Tae Jang ,  Ju Hyun Ko ,  Kwang June Sohn ,  Jin Woo Kim ,  Min Woo Son ,  Won Joon Hong

IPC: H04N5/225 ,  H04N5/357 ,  H04N5/365 ,  H04N5/378

CPC classification number: H04N5/3575 ,  H04N5/365 ,  H04N5/378

Abstract: An image sensor includes a pixel array, a column signal processor, and a column mismatch compensator. The pixel array outputs a pixel signal from each column line during a pixel measuring time, and outputs a reference signal during a reference measuring time. The column signal processor performs correlated double sampling (CDS) on the reference signal to generate a reference CDS signal, and performs CDS on the pixel signal to generate a pixel CDS signal. The column mismatch compensator compensates the pixel CDS signal based on the reference CDS signal.

Abstract translation: 图像传感器包括像素阵列，列信号处理器和列失配补偿器。 像素阵列在像素测量时间期间从每列输出像素信号，并在参考测量时间期间输出参考信号。 列信号处理器对参考信号执行相关双采样（CDS）以产生参考CDS信号，并对像素信号执行CDS以产生像素CDS信号。 列失配补偿器基于参考CDS信号来补偿像素CDS信号。