首页> 外国专利> ADC FOR CANCELLING COLUMN FIXED PATTERN NOISE CAPABLE OF FORMING IMPROVED IMAGES AND A CMOS(COMPLEMENTARY METAL-OXIDE SEMICONDUCTOR) IMAGE SENSOR USING THE SAME

ADC FOR CANCELLING COLUMN FIXED PATTERN NOISE CAPABLE OF FORMING IMPROVED IMAGES AND A CMOS(COMPLEMENTARY METAL-OXIDE SEMICONDUCTOR) IMAGE SENSOR USING THE SAME

机译:用于消除可能形成改进图像的列固定图案噪声的ADC和使用相同图像的CMOS(互补金属氧化物半导体)图像传感器

摘要

PURPOSE: ADC for cancelling column fixed pattern noise and a CMOS(Complementary Metal-Oxide Semiconductor) image sensor using the same are provided to form improved images by eliminating C-FPN(Column Fixed Pattern Noise) properties from a CIS(CMOS Image sensor).;CONSTITUTION: A comparison unit(600) outputs comparison results in a comparison unit output signal by comparing a lamp input having a constant slope according to specific input voltages and time. A sync shift block part(610) controls a sync signal. A memory block part(620) stores a digital counter output value of an n-bit counter(630) in n bit memory(640) according to a sync signal in the sync shift block part. The n-bit counter generates the digital counter output value of n bit. The n bit memory stores the digital counter output value generated from the n-bit counter. C-FPN(Column Fixed Pattern Noise) removing memory(650) respectively stores outputs from each column ADCs.;COPYRIGHT KIPO 2012
机译:用途:提供用于消除列固定图案噪声的ADC和使用该ADC的CMOS(互补金属氧化物半导体)图像传感器,以通过消除CIS(CMOS图像传感器)的C-FPN(列固定图案噪声)特性来形成改进的图像。组成:比较单元(600)通过根据特定的输入电压和时间比较具有恒定斜率的灯输入来在比较单元的输出信号中输出比较结果。同步移位块部分(610)控制同步信号。存储块部分(620)根据同步移位块部分中的同步信号将n位计数器(630)的数字计数器输出值存储在n位存储器(640)中。 n位计数器生成n位的数字计数器输出值。 n位存储器存储从n位计数器生成的数字计数器输出值。 C-FPN(列固定模式噪声)移除存储器(650)分别存储每个列ADC的输出。; COPYRIGHT KIPO 2012

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