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1.发明授权公开(公告)号：US08547476B2
公开(公告)日：2013-10-01
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
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.
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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
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。
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3.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
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。
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4.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：US07667176B2
公开(公告)日：2010-02-23
申请号：US11730877
申请日：2007-04-04
申请人： Espen A. Olsen , Jorgen Moholt
发明人： Espen A. Olsen , Jorgen Moholt
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幅度单独处理每个像素。 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。
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公开(公告)号：US07605852B2
公开(公告)日：2009-10-20
申请号：US10846513
申请日：2004-05-17
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
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。
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公开(公告)号：US08149326B2
公开(公告)日：2012-04-03
申请号：US12560135
申请日：2009-09-15
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
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。
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公开(公告)号：US20100073512A1
公开(公告)日：2010-03-25
申请号：US12560135
申请日：2009-09-15
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
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。
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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
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。
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9.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。
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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
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。
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