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    • 10. 发明授权
    • Imaging system having a sensor array reset noise reduction mechanism
    • 具有传感器阵列复位噪声降低机构的成像系统
    • US06438276B1
    • 2002-08-20
    • US09659159
    • 2000-09-11
    • Jon M. DhuseKevin M. ConnollyMark A. Beiley
    • Jon M. DhuseKevin M. ConnollyMark A. Beiley
    • G06K920
    • H04N5/363H04N5/374H04N5/378
    • What is disclosed is an apparatus for reducing row reset noise in photodiode based complementary metal oxide (CMOS) sensors. The apparatus uses at least one reference pixel for each row of pixels in a sensor array. Also, a reset noise elimination unit is provided to adjust the values received from the pixels in a particular row by an adjustment value determined from the reset values received from the reference pixels. Additionally, a method of using the apparatus is disclosed. The method has a step of providing a first reset signal to a row of pixels including the reference pixels. The method also reads out a first set of values from this row after integration. The method continues with providing a second reset signal to the row and a second set of values is read from the row. An adjustment value is calculated from the difference of the values which are read out from the reference pixels.
    • 公开的是用于减少基于光电二极管的互补金属氧化物(CMOS)传感器中的行复位噪声的装置。 该装置对传感器阵列中的每行像素使用至少一个参考像素。 此外,提供复位噪声消除单元,用于根据从参考像素接收的复位值确定的调整值来调整从特定行中的像素接收的值。 另外,公开了一种使用该装置的方法。 该方法具有向包括参考像素的像素行提供第一复位信号的步骤。 该方法还从集成后的第一行中读出第一组值。 该方法继续向该行提供第二复位信号,并且从该行读取第二组值。 根据从参考像素读出的值的差来计算调整值。