Image Sensor For Improving Linearity of Analog-to-Digital Converter and image Processing System Including The Same
Disclosed are an image sensor for improving linearity of an analog-to-digital converter and an image processing system including the same. The image sensor according to the present invention includes: a pixel array that includes a plurality of pixels, each of which is connected to a corresponding co...
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Main Authors | , , , , |
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Format | Patent |
Language | English Korean |
Published |
19.10.2016
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Subjects | |
Online Access | Get full text |
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Summary: | Disclosed are an image sensor for improving linearity of an analog-to-digital converter and an image processing system including the same. The image sensor according to the present invention includes: a pixel array that includes a plurality of pixels, each of which is connected to a corresponding column line among first to m^th (m is an integer of 2 or higher) column lines and outputs a pixel signal; a plurality of analog-to-digital converters, each of which receives a pixel signal of a corresponding one among the first to m^th column lines, compares the received pixel signal with a lamp signal, and converts the pixel signal into a digital pixel signal; and a blocking circuit that is connected to an input port of at least one of the plurality of analog-to-digital converters and blocks an effect by operations of other analog-to-digital converters. The image sensor according to the present invention may improve linearity of the analog-to-digital converters, thereby improving quality of an image signal output from the image sensor.
아날로그 디지털 변환기의 선형성을 개선하는 이미지 센서 및 이를 포함하는 이미지 처리 시스템이 개시된다. 본 발명의 이미지 센서는 각각이 제1 내지 제m(2 이상의 정수) 칼럼 라인들 중 해당 칼럼 라인에 연결되어, 픽셀 신호를 출력하는 복수의 픽셀들을 포함하는 픽셀 어레이, 각각이 제1 내지 제m 칼럼 라인들 중 대응하는 픽셀 신호를 수신하고, 수신한 픽셀 신호를 램프 신호와 비교하여, 상기 픽셀 신호를 디지털 픽셀 신호로 변환하는 복수의 아날로그-디지털 변환기들, 및 상기 복수의 아날로그-디지털 변환기들 중 적어도 하나의 입력에 연결되어, 다른 아날로그-디지털 변환기들의 동작에 의한 영향을 차단하는 차단회로를 포함한다. |
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Bibliography: | Application Number: KR20150050840 |