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1. 发明授权

US07605398B2 Apparatus of high dynamic-range CMOS image sensor and method thereof 失效
标题翻译：高动态范围CMOS图像传感器的设备及其方法
公开(公告)号：US07605398B2
公开(公告)日：2009-10-20
申请号：US11211670
申请日：2005-08-26
申请人： Oscal T.-C. Chen , Wei-Jean Liu , Hsiu-Fen Yeh
发明人： Oscal T.-C. Chen , Wei-Jean Liu , Hsiu-Fen Yeh
IPC分类号： H04N5/335
CPC分类号： H04N5/374 , H01L27/14609 , H04N5/35518
摘要： The present invention discloses an apparatus of high dynamic-range CMOS image sensor and method thereof. The present invention utilize a pixel circuit outputting an output signal, wherein the pixel circuit has a photodiode and a plurality of transistors; and utilize a current source as a charge supplement unit to supply current into one end of the photodiode, and providing charges to the parasitic capacitor of the photodiode to delay saturation in the pixel circuit. In addition, a feedback circuit can be further designed connecting the pixel circuit. The feedback circuit receives the output signal from the pixel circuit and then outputs a control signal according to the output signal of the pixel circuit to control status of the charge supplement unit, and thereby increasing the dynamic range of the CMOS image sensor.
摘要翻译：本发明公开了一种高动态范围CMOS图像传感器及其方法。本发明利用输出输出信号的像素电路，其中像素电路具有光电二极管和多个晶体管; 并且利用电流源作为电荷补充单元来向光电二极管的一端提供电流，并向光电二极管的寄生电容器提供电荷以延迟像素电路中的饱和。此外，可以进一步设计连接像素电路的反馈电路。反馈电路从像素电路接收输出信号，然后根据像素电路的输出信号输出控制信号，控制电荷补充单元的状态，从而增加CMOS图像传感器的动态范围。

2. 发明申请

US20070046800A1 Apparatus of high dynamic-range CMOS image sensor and method thereof 失效
标题翻译：高动态范围CMOS图像传感器的设备及其方法
公开(公告)号：US20070046800A1
公开(公告)日：2007-03-01
申请号：US11211670
申请日：2005-08-26
申请人： Oscal Chen , Wei-Jean Liu , Hsiu-Fen Yeh
发明人： Oscal Chen , Wei-Jean Liu , Hsiu-Fen Yeh
IPC分类号： H01L33/00 , H04N5/335
CPC分类号： H04N5/374 , H01L27/14609 , H04N5/35518
摘要： The present invention discloses an apparatus of high dynamic-range CMOS image sensor and method thereof. The present invention utilize a pixel circuit outputting an output signal, wherein the pixel circuit has a photodiode and a plurality of transistors; and utilize a current source as a charge supplement unit to supply current into one end of the photodiode, and providing charges to the parasitic capacitor of the photodiode to delay saturation in the pixel circuit. In addition, a feedback circuit can be further designed connecting the pixel circuit. The feedback circuit receives the output signal from the pixel circuit and then outputs a control signal according to the output signal of the pixel circuit to control status of the charge supplement unit, and thereby increasing the dynamic range of the CMOS image sensor.
摘要翻译：本发明公开了一种高动态范围CMOS图像传感器及其方法。本发明利用输出输出信号的像素电路，其中像素电路具有光电二极管和多个晶体管; 并且利用电流源作为电荷补充单元来向光电二极管的一端提供电流，并向光电二极管的寄生电容器提供电荷以延迟像素电路中的饱和。此外，可以进一步设计连接像素电路的反馈电路。反馈电路从像素电路接收输出信号，然后根据像素电路的输出信号输出控制信号，控制电荷补充单元的状态，从而增加CMOS图像传感器的动态范围。

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