公开(公告)号：US20050194520A1

公开(公告)日：2005-09-08

申请号：US11067858

申请日：2005-02-28

申请人： Ken Koseki

发明人： Ken Koseki

IPC分类号： H01L27/146 ,  H01J40/14 ,  H04N5/335 ,  H04N5/365 ,  H04N5/374 ,  H04N5/378

CPC分类号： H04N5/378 ,  H04N5/3595

摘要： The levels of the power supply and the ground are kept constant against a parasitic resistance by keeping the constant current of an amplifier irrespective of the size of a pixel signal and the gain of the amplifier in this case in an image signal reading circuit system having the amplifier arranged to each column. The amplifier has a limiter at an output terminal thereof which limits an output voltage of the amplifier to a range for keeping the constant consumption-current.

摘要翻译： 通过保持放大器的恒定电流而不考虑像素信号的大小和放大器的增益，电源和地的电平保持恒定，在这种情况下，在具有 放大器布置在每列。 放大器在其输出端具有限幅器，其将放大器的输出电压限制在保持恒定消耗电流的范围内。