发明授权
US06423961B1 Pixel readout switched capacitor buffer circuit and method therefor
有权
像素读出开关电容缓冲电路及其方法
- 专利标题： Pixel readout switched capacitor buffer circuit and method therefor
- 专利标题（中）： 像素读出开关电容缓冲电路及其方法
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申请号： US09490238申请日： 2000-01-24
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公开(公告)号： US06423961B1公开(公告)日： 2002-07-23
- 发明人: Andrea Niederkorn , Suhail Agwani , David LoCascio
- 申请人： Andrea Niederkorn , Suhail Agwani , David LoCascio
- 主分类号： H01J4014
- IPC分类号： H01J4014
摘要：
A pixel signal amplification circuit (200) receives a signal from a pixel element. A first semiconductor switch (225a) is connected to the pixel element and transfers a reset value of the pixel signal to a first storage capacitor (C1). A second semiconductor switch (235a) is also connected to the pixel element and transfers a sampled pixel signal to a second storage capacitor (C3). A differential voltage amplifier (OP1) generates an amplified signal of the difference between the values stored on the first and second storage capacitors (C1 and C3).
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