Row driver for selectively supplying operating power to imager pixel
    2.
    发明授权
    Row driver for selectively supplying operating power to imager pixel 有权
    行驱动器,用于选择性地为成像器像素提供工作电源

    公开(公告)号:US07196304B2

    公开(公告)日:2007-03-27

    申请号:US10766012

    申请日:2004-01-29

    CPC classification number: G01J1/44 H03F3/082 H04N5/3591 H04N5/3592 H04N5/3741

    Abstract: An imaging system includes a pixel that does not require a row select transistor. Instead, an operating voltage is selectively provided to the pixel's readout circuitry, and the readout circuitry provides output signals based on charge or voltage of a storage node. The operating voltage can be selectively provided to each row of a pixel array by a row driver. Each pixel includes a source follower transistor that provides an output signal on a column output line for readout. An anti-blooming transistor may be linked to each pixel's photosensor to provide an overflow path for electrons during charge integration, prior to transfer of charge to the pixel's storage node by a transfer transistor. Electrons not produced by an image are introduced to the photosensor prior to image acquisition, filling traps in the photosensor to reduce image degradation.

    Abstract translation: 成像系统包括不需要行选择晶体管的像素。 相反,选择性地向像素读出电路提供工作电压,读出电路基于存储节点的充电或电压提供输出信号。 可以通过行驱动器将工作电压选择性地提供给像素阵列的每一行。 每个像素包括源极跟随器晶体管,其在列输出线上提供输出信号用于读出。 在通过传输晶体管将电荷转移到像素的存储节点之前,抗起霜晶体管可以连接到每个像素的光电传感器,以在电荷积分期间为电子提供溢出路径。 在图像采集之前,不由图像产生的电子被引入光传感器,在光电传感器中填充陷阱以减少图像劣化。

    ROW DRIVEN IMAGER PIXEL
    3.
    发明申请

    公开(公告)号:US20100148035A1

    公开(公告)日:2010-06-17

    申请号:US12713427

    申请日:2010-02-26

    CPC classification number: G01J1/44 H03F3/082 H04N5/3591 H04N5/3592 H04N5/3741

    Abstract: An imaging system includes a pixel that does not require a row select transistor. Instead, an operating voltage is selectively provided to the pixel's readout circuitry, and the readout circuitry provides output signals based on charge or voltage of a storage node. The operating voltage can be selectively provided to each row of a pixel array by a row driver. Each pixel includes a source follower transistor that provides an output signal on a column output line for readout. An anti-blooming transistor may be linked to each pixel's photosensor to provide an overflow path for electrons during charge integration, prior to transfer of charge to the pixel's storage node by a transfer transistor. Electrons not produced by an image are introduced to the photosensor prior to image acquisition, filling traps in the photosensor to reduce image degradation.

    Image sensor with a gated storage node linked to transfer gate
    4.
    发明授权
    Image sensor with a gated storage node linked to transfer gate 有权
    图像传感器与门控存储节点链接到传输门

    公开(公告)号:US07443437B2

    公开(公告)日:2008-10-28

    申请号:US10721191

    申请日:2003-11-26

    CPC classification number: H01L27/148 H04N5/363 H04N5/37457

    Abstract: A CMOS imaging system with increased charge storage of pixels yet decreased physical size, kTC noise and active area. A storage node is connected to the transfer gate and provides a storage node for a pixel, allowing for kTC noise reduction prior to readout. The pixel may be operated with the shutter gate on during the integration period to increase the amount of time for charge storage by a pixel.

    Abstract translation: 具有增加像素电荷存储的CMOS成像系统,同时减小了物理尺寸,kTC噪声和有效面积。 存储节点连接到传输门并提供用于像素的存储节点,从而允许在读出之前降低kTC噪声。 可以在积分周期期间使快门门导通来操作像素,以增加像素对电荷存储的时间量。

    Image sensor with a gated storage node linked to transfer gate
    5.
    发明授权
    Image sensor with a gated storage node linked to transfer gate 有权
    图像传感器与门控存储节点链接到传输门

    公开(公告)号:US08081249B2

    公开(公告)日:2011-12-20

    申请号:US12232994

    申请日:2008-09-26

    CPC classification number: H01L27/148 H04N5/363 H04N5/37457

    Abstract: A CMOS imaging system with increased charge storage of pixels yet decreased physical size, kTC noise and active area. A storage node is connected to the transfer gate and provides a storage node for a pixel, allowing for kTC noise reduction prior to readout. The pixel may be operated with the shutter gate on during the integration period to increase the amount of time for charge storage by a pixel.

    Abstract translation: 具有增加像素电荷存储的CMOS成像系统,同时减小了物理尺寸,kTC噪声和有效面积。 存储节点连接到传输门并提供用于像素的存储节点,从而允许在读出之前降低kTC噪声。 可以在积分周期期间使快门门导通来操作像素,以增加像素对电荷存储的时间量。

    Storage pixel
    6.
    发明授权
    Storage pixel 有权
    存储像素

    公开(公告)号:US07829969B2

    公开(公告)日:2010-11-09

    申请号:US12277071

    申请日:2008-11-24

    Abstract: Embodiments of the present invention provide pixel cells with increased storage capacity, which are capable of anti-blooming operations. In an exemplary embodiment a pixel cell has an electronic shutter that transfers charge generated by a photo-conversion device to a storage node before further transferring the charge to the pixel cell's floating diffusion node. Each pixel cell also includes an anti-blooming transistor for directing excess charge out of each respective pixel cell, thus preventing blooming. Additionally, two or more pixel cells of an array may share a floating diffusion node and reset and readout circuitry.

    Abstract translation: 本发明的实施例提供具有增加的存储容量的像素单元,其能够进行防起霜操作。 在示例性实施例中,像素单元具有电子快门,其将进一步将电荷转移到像素单元的浮动扩散节点之前,将由光转换装置产生的电荷传送到存储节点。 每个像素单元还包括用于将多余电荷引出每个相应像素单元的防喷射晶体管,从而防止起霜。 此外,阵列的两个或更多像素单元可以共享浮动扩散节点和复位和读出电路。

    Image sensor with a gated storage node linked to transfer gate
    8.
    发明申请
    Image sensor with a gated storage node linked to transfer gate 有权
    图像传感器与门控存储节点链接到传输门

    公开(公告)号:US20090135284A1

    公开(公告)日:2009-05-28

    申请号:US12232994

    申请日:2008-09-26

    CPC classification number: H01L27/148 H04N5/363 H04N5/37457

    Abstract: A CMOS imaging system with increased charge storage of pixels yet decreased physical size, kTC noise and active area. A storage node is connected to the transfer gate and provides a storage node for a pixel, allowing for kTC noise reduction prior to readout. The pixel may be operated with the shutter gate on during the integration period to increase the amount of time for charge storage by a pixel.

    Abstract translation: 具有增加像素电荷存储的CMOS成像系统,同时减小了物理尺寸,kTC噪声和有效面积。 存储节点连接到传输门并提供用于像素的存储节点,从而允许在读出之前降低kTC噪声。 可以在积分周期期间使快门门导通来操作像素,以增加像素对电荷存储的时间量。

    Anti-blooming storage pixel
    9.
    发明授权

    公开(公告)号:US07465602B2

    公开(公告)日:2008-12-16

    申请号:US11526005

    申请日:2006-09-25

    Abstract: Embodiments of the present invention provide pixel cells with increased storage capacity, which are capable of anti-blooming operations. In an exemplary embodiment a pixel cell has an electronic shutter that transfers charge generated by a photo-conversion device to a storage node before further transferring the charge to the pixel cell's floating diffusion node. Each pixel cell also includes an anti-blooming transistor for directing excess charge out of each respective pixel cell, thus preventing blooming. Additionally, two or more pixel cells of an array may share a floating diffusion node and reset and readout circuitry.

    Resetting a row driven imager pixel
    10.
    发明授权
    Resetting a row driven imager pixel 有权
    重置行驱动的图像像素

    公开(公告)号:US08138462B2

    公开(公告)日:2012-03-20

    申请号:US12714369

    申请日:2010-02-26

    CPC classification number: G01J1/44 H03F3/082 H04N5/3591 H04N5/3592 H04N5/3741

    Abstract: An imaging system includes a pixel that does not require a row select transistor. Instead, an operating voltage is selectively provided to the pixel's readout circuitry, and the readout circuitry provides output signals based on charge or voltage of a storage node. The operating voltage can be selectively provided to each row of a pixel array by a row driver. Each pixel includes a source follower transistor that provides an output signal on a column output line for readout. An anti-blooming transistor may be linked to each pixel's photosensor to provide an overflow path for electrons during charge integration, prior to transfer of charge to the pixel's storage node by a transfer transistor. Electrons not produced by an image are introduced to the photosensor prior to image acquisition, filling traps in the photosensor to reduce image degradation.

    Abstract translation: 成像系统包括不需要行选择晶体管的像素。 相反,选择性地向像素读出电路提供工作电压,读出电路基于存储节点的充电或电压提供输出信号。 可以通过行驱动器将工作电压选择性地提供给像素阵列的每一行。 每个像素包括源极跟随器晶体管,其在列输出线上提供输出信号用于读出。 在通过传输晶体管将电荷转移到像素的存储节点之前,抗起霜晶体管可以连接到每个像素的光电传感器,以在电荷积分期间为电子提供溢出路径。 在图像采集之前,不由图像产生的电子被引入光传感器,在光电传感器中填充陷阱以减少图像劣化。

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