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    CURRENT MIRROR BIAS TRIMMING TECHNIQUE
    1.
    发明申请
    CURRENT MIRROR BIAS TRIMMING TECHNIQUE 有权
    当前的镜子偏心裁剪技术

    公开(公告)号：US20080297234A1

    公开(公告)日：2008-12-04

    申请号：US11756272

    申请日：2007-05-31

    申请人： Jorgen Moholt ,  Per Olaf Pahr ,  Tore Martinussen

    发明人： Jorgen Moholt ,  Per Olaf Pahr ,  Tore Martinussen

    IPC分类号： G05F3/02

    CPC分类号： G05F3/262

    摘要： A reference current is generated by a current mirror circuit. An operational amplifier of a feedback circuit generates a control voltage for control of the feedback circuit transistor. The size of the feedback circuit transistor is trimmed, and the current through the feedback circuit transistor remains relatively constant via operation of the feedback circuit. The feedback circuit transistor is scaled in size relative to the size of current reference transistor(s) (e.g., current sources or sinks), which are tied to the same control voltage. The reference current of the current reference transistors thus varies with the size of the feedback circuit transistor. Further advantageously, transistors providing reference currents for resistor ladders can also be tied to the same control voltage, but scaled proportionally with changes in size to the feedback circuit transistor, thereby maintaining relatively constant voltage from taps of the resistor ladder, even when the feedback circuit transistor is trimmed.

    摘要翻译： 参考电流由电流镜电路产生。 反馈电路的运算放大器产生用于控制反馈电路晶体管的控制电压。 反馈电路晶体管的尺寸被修整，并且通过反馈电路的操作通过反馈电路晶体管的电流保持相对恒定。 反馈电路晶体管的尺寸相对于电流参考晶体管（例如，电流源或吸收器）的尺寸进行缩放，其被连接到相同的控制电压。 因此，电流参考晶体管的参考电流随着反馈电路晶体管的尺寸而变化。 另外有利的是，提供电阻梯的参考电流的晶体管也可以连接到相同的控制电压，但是与反馈电路晶体管的尺寸变化成比例地缩放，从而保持电阻梯的抽头相对恒定的电压，即使反馈电路 晶体管被修整。

    Real-time exposure control for automatic light control
    4.
    发明申请
    Real-time exposure control for automatic light control 审中-公开
    实时曝光控制，实现自动光控

    公开(公告)号：US20050253937A1

    公开(公告)日：2005-11-17

    申请号：US11052217

    申请日：2005-02-08

    申请人： Jorgen Moholt ,  Steinar Iversen

    发明人： Jorgen Moholt ,  Steinar Iversen

    IPC分类号： G03B7/00 ,  H04N3/14 ,  H04N5/235 ,  H04N5/335

    CPC分类号： H04N5/2352

    摘要： An imager and a method for real-time, non-destructive monitoring of light incident on imager pixels during their exposure to light. Real-time or present pixel signals, which are indicative of present illumination on the pixels, are compared to a reference signal during the exposure. Adjustments, if necessary, are made to programmable parameters such as gain and/or exposure time to automatically control the imager's exposure to the light. In a preferred exemplary embodiment, only a selected number of pixels are monitored for exposure control as opposed to monitoring the entire pixel array. Digital feedback may be used to adjust the automatic light control process so that it accounts for potential inaccuracies in the light control process.

    摘要翻译： 一种成像器和一种在曝光时对成像器像素入射的光进行实时，无损检测的方法。 在曝光期间将表示像素上的当前照明的实时或呈现像素信号与参考信号进行比较。 如有必要，可以对可编程参数（如增益和/或曝光时间）进行调整，以自动控制成像仪对光的曝光。 在优选示例性实施例中，与监视整个像素阵列相比，仅监视选定数量的像素以进行曝光控制。 可以使用数字反馈来调整自动光控制过程，从而说明光控制过程中的潜在不准确。

    REAL-TIME EXPOSURE CONTROL FOR AUTOMATIC LIGHT CONTROL
    6.
    发明申请
    REAL-TIME EXPOSURE CONTROL FOR AUTOMATIC LIGHT CONTROL 有权
    实时曝光控制自动光控制

    公开(公告)号：US20120154563A1

    公开(公告)日：2012-06-21

    申请号：US13403599

    申请日：2012-02-23

    申请人： Alf Olsen ,  Espen A. Olsen ,  Jorgen Moholt ,  Steinar Iversen ,  Dov Avni ,  Arkady Glukhovsky

    发明人： Alf Olsen ,  Espen A. Olsen ,  Jorgen Moholt ,  Steinar Iversen ,  Dov Avni ,  Arkady Glukhovsky

    IPC分类号： H04N5/235 ,  H04N7/18

    CPC分类号： H04N5/2352 ,  H04N5/2353 ,  H04N5/2354 ,  H04N5/243

    摘要： An imager and a method for real-time, non-destructive monitoring of light incident on imager pixels during their exposure to light. Real-time or present pixel signals, which are indicative of present illumination on the pixels, are compared to a reference signal during the exposure. Adjustments, if necessary, are made to programmable parameters such as gain and/or exposure time to automatically control the imager's exposure to the light. In a preferred exemplary embodiment, only a selected number of pixels are monitored for exposure control as opposed to monitoring the entire pixel array.

    摘要翻译： 一种成像器和一种在曝光时对成像器像素入射的光进行实时，无损检测的方法。 在曝光期间将表示像素上的当前照明的实时或呈现像素信号与参考信号进行比较。 如有必要，可以对可编程参数（如增益和/或曝光时间）进行调整，以自动控制成像仪对光的曝光。 在优选示例性实施例中，与监视整个像素阵列相比，仅监视选定数量的像素以进行曝光控制。

    Method and apparatus providing pixel array having automatic light control pixels and image capture pixels
    7.
    发明授权
    Method and apparatus providing pixel array having automatic light control pixels and image capture pixels 有权
    提供具有自动光控制像素和图像捕获像素的像素阵列的方法和装置

    公开(公告)号：US07554071B2

    公开(公告)日：2009-06-30

    申请号：US11223045

    申请日：2005-09-12

    申请人： Jorgen Moholt

    发明人： Jorgen Moholt

    IPC分类号： H01L27/00

    CPC分类号： H04N5/2353 ,  H01L27/14609 ,  H01L27/14643 ,  H01L27/148 ,  H04N5/2351 ,  H04N5/3535 ,  H04N5/3728 ,  H04N9/045

    摘要： A pixel array uses two sets of pixels to provide accurate exposure control. One set of pixels provide continuous output signals for automatic light control (ALC) as the other set integrates and captures an image. ALC pixels allow monitoring of multiple pixels of an array to obtain sample data indicating the amount of light reaching the array, while allowing the other pixels to provide proper image data. A small percentage of the pixels in an array is replaced with ALC pixels and the array has two reset lines for each row; one line controls the reset for the image capture pixels while the other line controls the reset for the ALC pixels. In the columns, at least one extra control signal is used for the sampling of the reset level for the ALC pixels, which happens later than the sampling of the reset level for the image capture pixels.

    摘要翻译： 像素阵列使用两组像素来提供准确的曝光控制。 一组像素为自动光控制（ALC）提供连续的输出信号，因为另一组集成并捕获图像。 ALC像素允许监视阵列的多个像素以获得指示到达阵列的光量的采样数据，同时允许其他像素提供适当的图像数据。 阵列中的一小部分像素被ALC像素替代，并且阵列对于每一行都有两条重置线; 一行控制图像捕捉像素的复位，而另一行控制ALC像素的复位。 在这些列中，使用至少一个额外的控制信号用于ALC像素的复位电平的采样，其发生晚于用于图像捕获像素的复位电平的采样。

    Readout technique for increasing or maintaining dynamic range in image sensors
    8.
    发明授权
    Readout technique for increasing or maintaining dynamic range in image sensors 有权
    用于增加或维持图像传感器动态范围的读出技术

    公开(公告)号：US07297917B2

    公开(公告)日：2007-11-20

    申请号：US11088964

    申请日：2005-03-24

    申请人： Espen A. Olsen ,  Jorgen Moholt

    发明人： Espen A. Olsen ,  Jorgen Moholt

    IPC分类号： H04N5/335 ,  H01L27/00

    CPC分类号： H04N5/243 ,  H04N5/378

    摘要： The apparatus and method provide a readout technique and circuit for increasing or maintaining dynamic range of an image sensor. The readout technique and circuit process each pixel individually based on the magnitude of the readout signal. The circuit includes a gain amplifier amplifying the readout analog signal, a level detection circuit for determining the signal's magnitude, a second gain amplifier applying a gain based on the signal magnitude and an analog-to-digital converter digitizing the signal and a circuit for multiplying or dividing the signal. The method and circuit allow for a lower signal-to-noise ratio while increasing the dynamic range of the imager.

    摘要翻译： 该装置和方法提供了用于增加或保持图像传感器的动态范围的读出技术和电路。 读出技术和电路根据读出信号的大小分别对每个像素进行处理。 该电路包括放大读出的模拟信号的增益放大器，用于确定信号幅度的电平检测电路，基于信号幅度施加增益的第二增益放大器和对信号进行数字化的模数转换器和用于乘法的电路 或划分信号。 该方法和电路允许较低的信噪比同时增加成像器的动态范围。

    Real-time exposure control for automatic light control
    9.
    发明申请
    Real-time exposure control for automatic light control 有权
    实时曝光控制，实现自动光控

    公开(公告)号：US20050253944A1

    公开(公告)日：2005-11-17

    申请号：US10846513

    申请日：2004-05-17

    申请人： Alf Olsen ,  Espen Olsen ,  Jorgen Moholt ,  Steinar Iversen

    发明人： Alf Olsen ,  Espen Olsen ,  Jorgen Moholt ,  Steinar Iversen

    IPC分类号： G03B7/00 ,  H04N3/14 ,  H04N5/235 ,  H04N5/353 ,  H04N5/374 ,  H04N5/335

    CPC分类号： H04N5/2352 ,  H04N5/2353 ,  H04N5/2354 ,  H04N5/243

    摘要： An imager and a method for real-time, non-destructive monitoring of light incident on imager pixels during their exposure to light. Real-time or present pixel signals, which are indicative of present illumination on the pixels, are compared to a reference signal during the exposure. Adjustments, if necessary, are made to programmable parameters such as gain and/or exposure time to automatically control the imager's exposure to the light. In a preferred exemplary embodiment, only a selected number of pixels are monitored for exposure control as opposed to monitoring the entire pixel array.

    摘要翻译： 一种成像器和一种在曝光时对成像器像素入射的光进行实时，无损检测的方法。 在曝光期间将表示像素上的当前照明的实时或呈现像素信号与参考信号进行比较。 如有必要，可以对可编程参数（如增益和/或曝光时间）进行调整，以自动控制成像仪对光的曝光。 在优选示例性实施例中，与监视整个像素阵列相比，仅监视选定数量的像素以进行曝光控制。

    Method and apparatus providing multiple transfer gate control lines per pixel for automatic exposure control
    10.
    发明授权
    Method and apparatus providing multiple transfer gate control lines per pixel for automatic exposure control 有权
    为每个像素提供多个传输门控制线的方法和装置用于自动曝光控制

    公开(公告)号：US07741589B2

    公开(公告)日：2010-06-22

    申请号：US11417160

    申请日：2006-05-04

    申请人： Jorgen Moholt ,  Sohrab Yaghmai

    发明人： Jorgen Moholt ,  Sohrab Yaghmai

    IPC分类号： H01L27/00 ,  H01L31/00

    CPC分类号： H01L27/14654 ,  H01L27/14609 ,  H04N5/2353 ,  H04N5/3575 ,  H04N5/361 ,  H04N5/363

    摘要： An imager device includes a pixel array having some pixels providing output signals for automatic light control with other pixels providing image output signals. Multiple pixel cells of the array may be arranged to obtain sample data indicating the amount of light reaching the array, while image pixels in the array provide captured image data. An exemplary device includes a CMOS pixel array having 4T pixels arranged in rows and columns and having two transfer transistor control lines for each row of the array. Operation of the first transfer transistor line controls the pixels used for ALC operation while operation of the second transfer transistor line controls the pixels used for image capture.

    摘要翻译： 成像装置包括具有一些像素的像素阵列，其提供用于自动光控制的输出信号，其他像素提供图像输出信号。 可以布置阵列的多个像素单元以获得指示到达阵列的光量的采样数据，而阵列中的图像像素提供捕获的图像数据。 示例性器件包括具有排列成行和列的4T像素并且具有用于阵列的每一行的两个传输晶体管控制线的CMOS像素阵列。 第一传输晶体管线的操作控制用于ALC操作的像素，而第二传输晶体管线的操作控制用于图像捕获的像素。