发明授权
- 专利标题： Correlated double sampling circuit, image sensor including the same, and image processing system including the image sensor
- 专利标题（中）： 相关的双采样电路，包括图像传感器的图像传感器和图像处理系统
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申请号： US12801999申请日： 2010-07-07
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公开(公告)号： US08514306B2公开(公告)日： 2013-08-20
- 发明人: Wun-Ki Jung , Seog Heon Ham , Dong Hun Lee , Kwi Sung Yoo , Min Ho Kwon
- 申请人： Wun-Ki Jung , Seog Heon Ham , Dong Hun Lee , Kwi Sung Yoo , Min Ho Kwon
- 申请人地址： KR Gyeonggi-Do
- 专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人地址： KR Gyeonggi-Do
- 代理机构： Harness, Dickey & Pierce, P.L.C.
- 优先权： KR10-2009-0088755 20090918
- 主分类号： H04N5/20
- IPC分类号： H04N5/20
摘要：
A correlated double sampling (CDS) circuit is provided. The CDS circuit is configured to perform a CDS on a reset signal and an image signal during a CDS phase respectively. The CDS circuit includes a sampling circuit configured to output a difference between a correlated double sampled reset signal and a correlated double sampled image signal, and a feedback unit configured to feedback the difference output from the sampling circuit during a PGA phase to an input of the sampling circuit.