公开(公告)号：US07705899B2

公开(公告)日：2010-04-27

申请号：US11983013

申请日：2007-11-06

申请人： Eiji Koyama ,  Takashi Watanabe

发明人： Eiji Koyama ,  Takashi Watanabe

IPC分类号： H04N3/14 ,  H04N5/33511

CPC分类号： H04N5/3559 ,  H04N5/37457

摘要： A plurality of pixel groups X(n) each comprising a plurality of pixels are set, and switched capacitor amplification parts are provided in correspondence to the pixel groups, respectively. Each of the switched capacitor amplification parts has a charge detection node to which output terminals of the transfer transistors of a corresponding pixel group X(n) are connected in common, an amplification part, a reset transistor, a first capacitance element, and a select transistor. A load part common to the switched capacitor amplification parts is provided. The load part is combined with the amplification parts of the switched capacitor amplification parts to constitute inverting amplifiers, respectively. By means of the above constitution, it is capable of obtaining a noise-reduced, high-quality image and which allows transistor count per pixel to be cut, thus allowing the pixel size to be reduced.

摘要翻译： 设置分别包含多个像素的多个像素组X（n），分别对应于像素组设置开关电容放大部。 每个开关电容放大部分具有电荷检测节点，相应像素组X（n）的转移晶体管的输出端共同连接到该电荷检测节点，放大部分，复位晶体管，第一电容元件和选择 晶体管。 提供了开关电容放大部分共同的负载部分。 负载部分与开关电容放大部分的放大部分组合，分别构成反相放大器。 通过上述结构，能够获得噪声降低的高品质图像，并且允许每像素的晶体管数量被削减，从而允许像素尺寸减小。