公开(公告)号：US20090179243A1

公开(公告)日：2009-07-16

申请号：US12406337

申请日：2009-03-18

申请人： SEN-SHYONG FANN

发明人： SEN-SHYONG FANN

IPC分类号： H01L31/112

CPC分类号： H01L27/14681 ,  G06F3/0412 ,  G06F3/042

摘要： A photo detector device includes a photosensitive transistor capable of detecting an optical signal including an image component and a background component and converting the optical signal into a current including an image current corresponding to the image component and a background current corresponding to the background component, a first amplifier module electrically connected to the photosensitive transistor capable of canceling the background current and amplifying the image current, and a second amplifier module electrically connected to the first amplifier module capable of detecting a direct-current (dc) portion of the image current.

摘要翻译： 光检测器件包括能够检测包括图像分量和背景分量的光信号的光敏晶体管，并将光信号转换为包括对应于图像分量的图像电流的电流和对应于背景分量的背景电流， 电连接到能够消除背景电流并放大图像电流的光敏晶体管的第一放大器模块，以及电连接到能够检测图像电流的直流（dc）部分的第一放大器模块的第二放大器模块。