Invention Grant
US08248284B2 Analog-to-digital converters, and image sensors and image processing devices having the same
有权
模拟数字转换器，以及具有该转换器的图像传感器和图像处理装置
- Patent Title: Analog-to-digital converters, and image sensors and image processing devices having the same
- Patent Title (中): 模拟数字转换器，以及具有该转换器的图像传感器和图像处理装置
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Application No.: US12801062Application Date: 2010-05-20
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Publication No.: US08248284B2Publication Date: 2012-08-21
- Inventor: Wun-Ki Jung , Seog Heon Ham , Dong Hun Lee , Kwi Sung Yoo , Min Ho Kwon
- Applicant: Wun-Ki Jung , Seog Heon Ham , Dong Hun Lee , Kwi Sung Yoo , Min Ho Kwon
- Applicant Address: KR Gyeonggi-Do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Gyeonggi-Do
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: KR10-2009-0079218 20090826
- Main IPC: H03M3/00
- IPC: H03M3/00
Abstract:
An analog-digital converter (ADC) includes a correlated double sampling (CDS) circuit configured to perform CDS on each of a reset signal and an image signal output from a pixel to generate a correlated double sampled reset signal and a correlated double sampled image signal, respectively. A delta sigma (ΔΣ) ADC, also included in the ADC, is configured to output a difference between a first digital code that is generated by performing ΔΣ analog-digital conversion on the correlated double sampled reset signal and a second digital code that is generated by performing ΔΣ analog-digital conversion on the correlated double sampled image signal.
Public/Granted literature
- US20110050473A1 Analog-to-digital converters, and image sensors and image processing devices having the same Public/Granted day:2011-03-03
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