Pixel sensor
    11.
    发明授权
    Pixel sensor 失效
    像素传感器

    公开(公告)号:US07760259B2

    公开(公告)日:2010-07-20

    申请号:US12397230

    申请日:2009-03-03

    IPC分类号: H04N3/14 H04N5/335

    CPC分类号: H04N5/3559 H04N5/378

    摘要: A photodetecting circuit is disclosed. The photodetecting circuit includes a photodetector for generating a signal in response to incident light, a storage node having first and second node terminals, a transfer transistor, disposed intermediate the first node terminal of the storage node and the photodetector, for electrically connecting the first node terminal and the photodetector upon receiving a transfer signal to a gate of the transfer transistor, allowing charge stored in the storage node to change based on the signal of the photodetector, a reset transistor, disposed intermediate a reset voltage node and the first node terminal of the storage node, for electrically connecting the first node terminal to the reset voltage node upon receiving a reset signal to a gate of the reset transistor, and an output circuit for generating an output signal during a read period of the photodetecting circuit, the output signal being at least partially based on a voltage at the first terminal. The photodetecting circuit is configured to receive the reset signal, receive the transfer signal, and receive a compensation signal at the second terminal of the storage node at least during the read period, the compensation signal increasing the voltage at the first terminal whilst the output circuit generates the output signal, the compensation signal being a logically negated version of the transfer signal.

    摘要翻译: 公开了一种光电检测电路。 光检测电路包括用于响应于入射光产生信号的光电检测器,具有第一和第二节点端子的存储节点,设置在存储节点的第一节点终端和光电检测器之间的传输晶体管,用于电连接第一节点 端子和光电检测器,在接收到转移晶体管的栅极的转移信号时,允许存储在存储节点中的电荷基于光电检测器的信号而改变,复位晶体管设置在复位电压节点之间,第一节点终端 所述存储节点用于在接收到复位晶体管的栅极的复位信号时将所述第一节点端子与所述复位电压节点电连接;以及输出电路,用于在所述光电检测电路的读取周期期间产生输出信号, 至少部分地基于第一端子处的电压。 光检测电路被配置为至少在读周期期间接收复位信号,接收传输信号和在存储节点的第二端接收补偿信号,补偿信号增加第一端的电压,而输出电路 产生输出信号,补偿信号是传递信号的逻辑上否定的版本。

    PIXEL SENSOR
    12.
    发明申请
    PIXEL SENSOR 失效
    像素传感器

    公开(公告)号:US20090160986A1

    公开(公告)日:2009-06-25

    申请号:US12397230

    申请日:2009-03-03

    IPC分类号: H04N5/335

    CPC分类号: H04N5/3559 H04N5/378

    摘要: A photodetecting circuit is disclosed. The photodetecting circuit includes a photodetector for generating a signal in response to incident light, a storage node having first and second node terminals, a transfer transistor, disposed intermediate the first node terminal of the storage node and the photodetector, for electrically connecting the first node terminal and the photodetector upon receiving a transfer signal to a gate of the transfer transistor, allowing charge stored in the storage node to change based on the signal of the photodetector, a reset transistor, disposed intermediate a reset voltage node and the first node terminal of the storage node, for electrically connecting the first node terminal to the reset voltage node upon receiving a reset signal to a gate of the reset transistor, and an output circuit for generating an output signal during a read period of the photodetecting circuit, the output signal being at least partially based on a voltage at the first terminal. The photodetecting circuit is configured to receive the reset signal, receive the transfer signal, and receive a compensation signal at the second terminal of the storage node at least during the read period, the compensation signal increasing the voltage at the first terminal whilst the output circuit generates the output signal, the compensation signal being a logically negated version of the transfer signal.

    摘要翻译: 公开了一种光电检测电路。 光检测电路包括用于响应于入射光产生信号的光电检测器,具有第一和第二节点端子的存储节点,设置在存储节点的第一节点终端和光电检测器之间的传输晶体管,用于电连接第一节点 端子和光电检测器,在接收到转移晶体管的栅极的转移信号时,允许存储在存储节点中的电荷基于光电检测器的信号而改变,复位晶体管设置在复位电压节点之间,第一节点终端 所述存储节点用于在接收到复位晶体管的栅极的复位信号时将所述第一节点端子与所述复位电压节点电连接;以及输出电路,用于在所述光电检测电路的读取周期期间产生输出信号, 至少部分地基于第一端子处的电压。 光检测电路被配置为至少在读周期期间接收复位信号,接收传输信号和在存储节点的第二端接收补偿信号,补偿信号增加第一端的电压,而输出电路 产生输出信号,补偿信号是传递信号的逻辑上否定的版本。

    Photodetecting circuit
    16.
    发明授权
    Photodetecting circuit 失效
    光电检测电路

    公开(公告)号:US07990450B2

    公开(公告)日:2011-08-02

    申请号:US12497688

    申请日:2009-07-05

    IPC分类号: H04N3/14 H04N5/335

    CPC分类号: H04N5/3559 H04N5/378

    摘要: A photodetecting circuit is disclosed which includes a photodetector for generating a signal in response to incident light, a storage node, transfer and reset transistors and an output circuit. The storage node has first and second node terminals. The second node terminal is connected to a compensation signal during a read period of the photodetection circuit. The transfer transistor is disposed intermediate the first node terminal of the storage node and the photodetector and is for electrically connecting the first node terminal and the photodetector during an integration period upon receiving a transfer signal to a gate of the transfer transistor, allowing charge stored in the storage node to change based on the signal of the photodetector. The reset transistor has a control node for receiving a reset signal, a first terminal for receiving a reset voltage, and a second terminal electrically connected to the first node terminal, such that the reset voltage is supplied to the first node terminal when the reset signal is asserted at a gate of the reset transistor. The output circuit generates an output signal during the read period of the photodetecting circuit. The output signal is at least partially based on a voltage at the first terminal. The compensation signal is a logically negated version of the transfer signal.

    摘要翻译: 公开了一种光电检测电路,其包括用于响应于入射光产生信号的光电检测器,存储节点,传输和复位晶体管以及输出电路。 存储节点具有第一和第二节点终端。 在光检测电路的读取期间,第二节点终端连接到补偿信号。 传输晶体管设置在存储节点的第一节点和光电检测器之间,并且在接收到传输晶体管的栅极的传输信号的积分周期期间电连接第一节点端子和光电检测器, 存储节点根据光电检测器的信号而改变。 复位晶体管具有用于接收复位信号的控制节点,用于接收复位电压的第一端子和电连接到第一节点端子的第二端子,使得当复位信号被复位时,复位电压被提供给第一节点端子 在复位晶体管的栅极处被断言。 输出电路在光电检测电路的读取期间产生输出信号。 输出信号至少部分地基于第一端子处的电压。 补偿信号是传输信号的逻辑上否定的版本。