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    Lag cancellation in CMOS image sensors
    1.
    发明授权
    Lag cancellation in CMOS image sensors 有权
    CMOS图像传感器的滞后消除

    公开(公告)号：US07417677B2

    公开(公告)日：2008-08-26

    申请号：US10636534

    申请日：2003-08-08

    Applicant: Gennadiy A. Agranov ,  Dmitri Jerdev

    Inventor： Gennadiy A. Agranov ,  Dmitri Jerdev

    IPC: H04N5/335 ,  H04N5/217

    CPC classification number: H04N5/3597 ,  H04N5/374

    Abstract: A pixel cell with improved lag characteristics without increased noise. The pixel cell according to embodiments of the invention includes a photo-conversion device and a floating diffusion region switchably coupled to the photo-conversion device. The pixel cell includes a reset transistor, which has a first terminal electrically connected to the floating diffusion region and a second terminal switchably coupled to first and second voltage sources. The first voltage source is higher than the second voltage source. The pixel cell operates by returning a potential on the photo-conversion device to a value approximately equal to a value of a potential barrier between the photo-conversion device and the floating diffusion region prior to generating charge in the photo-conversion device.

    Abstract translation: 具有改进的滞后特性而不增加噪声的像素单元。 根据本发明的实施例的像素单元包括光转换装置和可转换地耦合到光转换装置的浮动扩散区域。 像素单元包括复位晶体管，其具有电连接到浮动扩散区域的第一端子和可切换地耦合到第一和第二电压源的第二端子。 第一电压源高于第二电压源。 像素单元通过在光转换装置中产生电荷之前将光转换装置上的电位返回到大致等于光转换装置和浮动扩散区域之间的势垒的值的值来操作。

    Methods, systems and apparatuses using barrier self-calibration for high dynamic range imagers
    2.
    发明申请
    Methods, systems and apparatuses using barrier self-calibration for high dynamic range imagers 有权
    使用高动态范围成像器的屏障自校准的方法，系统和装置

    公开(公告)号：US20090101796A1

    公开(公告)日：2009-04-23

    申请号：US11976301

    申请日：2007-10-23

    Applicant: John Ladd ,  Gennadiy A. Agranov ,  Dmitri Jerdev

    Inventor： John Ladd ,  Gennadiy A. Agranov ,  Dmitri Jerdev

    IPC: G01J1/44

    CPC classification number: H04N5/235 ,  H04N5/35527 ,  H04N5/35581 ,  H04N5/374

    Abstract: Methods, systems and apparatuses proving a high dynamic range imager. Multiple photosensor integration periods are used to capture pixel signal information. A transistor gate is used to remove electrons from the photosensor between the two successive integration periods providing a non-linear pixel response characteristic having a knee point. Each pixel is calibrated for the knee point which is used during adjustment of the pixel output signal. Each pixel may also be calibrated with an arbitrary signal response curve for multiple light intensities.

    Abstract translation: 方法，系统和设备证明了高动态范围的成像仪。 多个光电传感器积分周期用于捕获像素信号信息。 晶体管栅极用于在两个连续积分周期之间从光电传感器中去除电子，从而提供具有拐点的非线性像素响应特性。 对于在像素输出信号的调整期间使用的拐点，校准每个像素。 每个像素也可以用多个光强度的任意信号响应曲线校准。

    Methods, systems and apparatuses using barrier self-calibration for high dynamic range imagers
    3.
    发明授权
    Methods, systems and apparatuses using barrier self-calibration for high dynamic range imagers 有权
    使用高动态范围成像器的屏障自校准的方法，系统和装置

    公开(公告)号：US07920193B2

    公开(公告)日：2011-04-05

    申请号：US11976301

    申请日：2007-10-23

    Applicant: John Ladd ,  Gennadiy A. Agranov ,  Dmitri Jerdev

    Inventor： John Ladd ,  Gennadiy A. Agranov ,  Dmitri Jerdev

    IPC: H04N3/14

    CPC classification number: H04N5/235 ,  H04N5/35527 ,  H04N5/35581 ,  H04N5/374

    Abstract: Methods, systems and apparatuses proving a high dynamic range imager. Multiple photosensor integration periods are used to capture pixel signal information. A transistor gate is used to remove electrons from the photosensor between the two successive integration periods providing a non-linear pixel response characteristic having a knee point. Each pixel is calibrated for the knee point which is used during adjustment of the pixel output signal. Each pixel may also be calibrated with an arbitrary signal response curve for multiple light intensities.

    Abstract translation: 方法，系统和设备证明了高动态范围的成像仪。 多个光电传感器积分周期用于捕获像素信号信息。 晶体管栅极用于在两个连续积分周期之间从光电传感器中去除电子，从而提供具有拐点的非线性像素响应特性。 对于在像素输出信号的调整期间使用的拐点，校准每个像素。 每个像素也可以用多个光强度的任意信号响应曲线校准。

    Optimization of alignment between elements in an image sensor
    5.
    发明申请
    Optimization of alignment between elements in an image sensor 有权
    优化图像传感器中元素之间的对齐

    公开(公告)号：US20090045322A1

    公开(公告)日：2009-02-19

    申请号：US12068517

    申请日：2008-02-07

    Applicant: Scott P. Campbell ,  Richard H. Tsai ,  Gennadiy A. Agranov ,  Eric R. Fossum

    Inventor： Scott P. Campbell ,  Richard H. Tsai ,  Gennadiy A. Agranov ,  Eric R. Fossum

    IPC: H01L27/00

    CPC classification number: H01L27/14627

    Abstract: An image sensor is formed with shifts among the optical parts of the sensor and the photosensitive parts of the sensor. The optical parts of the sensor may include a color filter array and/or microlenses. The photosensitive part may include any photoreceptors such as a CMOS image sensor. The shifts allow images to be formed even when the light received at a given pixel location varies in angle of incidence as a function of pixel location within the array. The relative shifts among the pixel components may be, for example, plus or minus some fraction of the pixel pitch. The shift may be variable across the array or may be constant across the array and may be deterministically determined.

    Abstract translation: 在传感器的光学部件和传感器的感光部件之间形成有图像传感器。 传感器的光学部件可以包括滤色器阵列和/或微透镜。 感光部分可以包括诸如CMOS图像传感器的任何光感受器。 即使当在给定像素位置处接收到的光作为阵列内的像素位置的函数的入射角度而变化时，也能够形成图像。 像素分量之间的相对偏移可以是例如像素间距的加或减一些。 该位移可以在阵列上是可变的，或者可以在整个阵列上是恒定的，并且可以是确定性地确定的。

    Optimization of alignment between elements in an image sensor
    8.
    发明授权
    Optimization of alignment between elements in an image sensor 有权
    优化图像传感器中元素之间的对齐

    公开(公告)号：US07655893B2

    公开(公告)日：2010-02-02

    申请号：US12068517

    申请日：2008-02-07

    Applicant: Scott P. Campbell ,  Richard H. Tsai ,  Gennadiy A. Agranov ,  Eric R. Fossum

    Inventor： Scott P. Campbell ,  Richard H. Tsai ,  Gennadiy A. Agranov ,  Eric R. Fossum

    IPC: H01L27/00

    CPC classification number: H01L27/14627

    Abstract: An image sensor is formed with shifts among the optical parts of the sensor and the photosensitive parts of the sensor. The optical parts of the sensor may include a color filter array and/or microlenses. The photosensitive part may include any photoreceptors such as a CMOS image sensor. The shifts allow images to be formed even when the light received at a given pixel location varies in angle of incidence as a function of pixel location within the array. The relative shifts among the pixel components may be, for example, plus or minus some fraction of the pixel pitch. The shift may be variable across the array or may be constant across the array and may be deterministically determined.

    Abstract translation: 在传感器的光学部件和传感器的感光部件之间形成有图像传感器。 传感器的光学部件可以包括滤色器阵列和/或微透镜。 感光部分可以包括诸如CMOS图像传感器的任何光感受器。 即使当在给定像素位置处接收到的光作为阵列内的像素位置的函数的入射角度而变化时，也能够形成图像。 像素分量之间的相对偏移可以是例如加或减一些像素间距的一部分。 该位移可以在阵列上是可变的，或者可以在整个阵列上是恒定的，并且可以是确定性地确定的。

    Method and apparatus for increasing conversion gain in imagers
    10.
    发明申请
    Method and apparatus for increasing conversion gain in imagers 审中-公开
    提高成像器转换增益的方法和装置

    公开(公告)号：US20090321799A1

    公开(公告)日：2009-12-31

    申请号：US12213835

    申请日：2008-06-25

    Applicant: Sergey A. Velichko ,  Gennadiy A. Agranov

    Inventor： Sergey A. Velichko ,  Gennadiy A. Agranov

    IPC: H01L31/00

    CPC classification number: H04N5/35572 ,  H04N5/374

    Abstract: A method, apparatus, and system providing a pixel having increased conversion gain by decreasing the size of an output charge storage region to less than that of a photosensor. A pixel readout is executed by multiple sampling signals based on portions of charge transferred from the photosensor to the storage region and combining the sampled signals in either the analog domain or the digital domain into a representative pixel output signal.

    Abstract translation: 一种通过将输出电荷存储区域的尺寸减小到小于光电传感器的尺寸来提供具有增加的转换增益的像素的方法，装置和系统。 基于从光传感器传送到存储区域的电荷部分的多个采样信号执行像素读出，并将模拟域或数字域中的采样信号组合成代表性的像素输出信号。

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