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21. 发明申请

US20090103827A1 METHODS, SYSTEMS, AND APPARATUSES THAT COMPENSATE FOR NOISE GENERATED IN AN IMAGER DEVICE 审中-公开
标题翻译：在图像设备中产生噪声的方法，系统和装置
公开(公告)号：US20090103827A1
公开(公告)日：2009-04-23
申请号：US11875101
申请日：2007-10-19
申请人： John Ladd , Gennadiy Agranov , Johannes Solhusvik , Trygve Willassen
发明人： John Ladd , Gennadiy Agranov , Johannes Solhusvik , Trygve Willassen
IPC分类号： G06K9/40 , H04N5/217
CPC分类号： H04N5/374 , G06K9/40 , H04N5/3575 , H04N5/361 , H04N5/3651
摘要： Methods, systems and apparatuses for using regular and/or dark pixels of a pixel array in either a fixed or dynamic fashion to compensate for fixed pattern noise.
摘要翻译：以固定或动态方式使用像素阵列的规则和/或暗像素以补偿固定图案噪声的方法，系统和装置。

22. 发明授权

US07378635B2 Method and apparatus for dark current and hot pixel reduction in active pixel image sensors 有权
标题翻译：有源像素图像传感器中暗电流和热像素减少的方法和装置
公开(公告)号：US07378635B2
公开(公告)日：2008-05-27
申请号：US11055105
申请日：2005-02-11
申请人： Gennadiy Agranov , Xiangli Li , Peter Parker Altice , Rick Mauritzson
发明人： Gennadiy Agranov , Xiangli Li , Peter Parker Altice , Rick Mauritzson
IPC分类号： H01L27/00 , H01L31/062 , H01L31/00 , G01J1/44 , H04N3/14
CPC分类号： H04N5/3591 , H01L27/14609 , H01L27/14654 , H04N5/361 , H04N5/3745
摘要： A method of operating an imager pixel that includes the act of applying a relatively small voltage on the gate of a transfer transistor during a charge acquisition period. If a small positive voltage is applied, a depletion region is created under the transfer transistor gate, which creates a path for dark current electrons to be transferred to a pixel floating diffusion region. The dark electrons are subsequently removed by a pixel reset operation. If a small negative voltage is applied to the transfer gate, electrons that would normally create dark current problems will instead recombine with holes thereby substantially reducing dark current.
摘要翻译：一种操作成像器像素的方法，其包括在电荷采集周期期间在传输晶体管的栅极上施加相对小的电压的动作。如果施加小的正电压，则在传输晶体管栅极之下产生耗尽区，其产生用于暗电流电子被传送到像素浮动扩散区的路径。随后通过像素复位操作去除暗电子。如果向传输栅极施加小的负电压，则通常会产生暗电流问题的电子将与空穴复合，从而显着减少暗电流。

23. 发明申请

US20070031988A1 Backside silicon wafer design reducing image artifacts from infrared radiation 有权
标题翻译：背面硅晶片设计减少了红外辐射的图像伪影
公开(公告)号：US20070031988A1
公开(公告)日：2007-02-08
申请号：US11195687
申请日：2005-08-03
申请人： Gennadiy Agranov , Igor Karasev
发明人： Gennadiy Agranov , Igor Karasev
IPC分类号： H01L21/00
CPC分类号： H01L27/14625 , H01L27/14603 , H01L27/14609 , H01L27/1462 , H01L27/14623 , H01L27/14685 , H01L31/0232
摘要： Imaging devices having reduced image artifacts are disclosed. The image artifacts in the imaging devices are reduced by redirecting, absorbing or scattering IR radiation that passes through the imaging device substrate away from dark pixels.
摘要翻译：公开了具有减少的图像伪影的成像装置。成像装置中的图像伪影通过将穿过成像装置基板远离黑色像素的IR辐射重定向，吸收或散射来减少。

24. 发明申请

US20070030379A1 Circular symmetrical microlens/color filter array shift and digital lens shading correction 有权
标题翻译：圆形对称微透镜/滤色器阵列移位和数字透镜阴影校正
公开(公告)号：US20070030379A1
公开(公告)日：2007-02-08
申请号：US11195692
申请日：2005-08-03
申请人： Gennadiy Agranov
发明人： Gennadiy Agranov
IPC分类号： H04N5/225
CPC分类号： H04N5/2254 , H04N5/3572
摘要： An image sensor formed with shifts among the optical parts of the sensor and the photosensitive parts of the sensor. Exemplary methods of calculating the desired shift are described and include a circular, symmetric design for the shift. The exemplary methods can also be used to calculate a correction coefficient for performing shading correction on signals that are output from the array and digitized.
摘要翻译：在传感器的光学部件和传感器的感光部件之间形成有移动的图像传感器。描述了计算所需位移的示例性方法，并且包括用于换档的圆形，对称设计。示例性方法还可以用于计算用于对从阵列输出并被数字化的信号执行阴影校正的校正系数。

25. 发明申请

US20050061951A1 Optimization of alignment among elements in an image sensor 有权
标题翻译：优化图像传感器元件之间的对齐
公开(公告)号：US20050061951A1
公开(公告)日：2005-03-24
申请号：US10703426
申请日：2003-11-10
申请人： Scott Campbell , Richard Tsai , Gennadiy Agranov , Eric Fossum
发明人： Scott Campbell , Richard Tsai , Gennadiy Agranov , Eric Fossum
IPC分类号： H01L27/00
CPC分类号： H01L27/14627
摘要： 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.
摘要翻译：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。

26. 发明授权

US09083905B2 Structured light imaging system 有权
标题翻译：结构光成像系统
公开(公告)号：US09083905B2
公开(公告)日：2015-07-14
申请号：US13353593
申请日：2012-01-19
申请人： Chung Chun Wan , Xiangli Li , Gennadiy Agranov
发明人： Chung Chun Wan , Xiangli Li , Gennadiy Agranov
IPC分类号： H04N5/235 , H04N9/73 , G03B7/00 , H04N5/3745 , G01S17/10 , G01S17/89
CPC分类号： H04N13/296 , G01S17/10 , G01S17/89 , H04N5/2354 , H04N5/37452 , H04N5/378 , H04N13/254
摘要： Structured light imaging method and systems are described. An imaging method generates a stream of light pulses, converts the stream after reflection by a scene to charge, stores charge converted during the light pulses to a first storage element, and stores charge converted between light pulses to a second storage element. A structured light image system includes an illumination source that generates a stream of light pulses and an image sensor. The image sensor includes a photodiode, first and second storage elements, first and second switches, and a controller that synchronizes the image sensor to the illumination source and actuates the first and second switches to couple the first storage element to the photodiode to store charge converted during the light pulses and to couple the second storage element to the photodiode to store charge converted between the light pulses.
摘要翻译：描述了结构光成像方法和系统。成像方法产生光脉冲流，通过场景反射后的流转换为电荷，将在光脉冲期间转换的电荷存储到第一存储元件，并将在光脉冲之间转换的电荷存储到第二存储元件。结构化光图像系统包括产生光脉冲流的照明源和图像传感器。图像传感器包括光电二极管，第一和第二存储元件，第一和第二开关以及使图像传感器与照明源同步并且致动第一和第二开关以将第一存储元件耦合到光电二极管以存储电荷转换的控制器并且将第二存储元件耦合到光电二极管以存储在光脉冲之间转换的电荷。

27. 发明授权

US09029924B2 Antiblooming imaging apparatus, systems, and methods 有权
标题翻译：抗皱成像设备，系统和方法
公开(公告)号：US09029924B2
公开(公告)日：2015-05-12
申请号：US13351106
申请日：2012-01-16
申请人： Chen Xu , Gennadiy Agranov , Igor Karasev
发明人： Chen Xu , Gennadiy Agranov , Igor Karasev
IPC分类号： H01L31/062 , H04N5/3745 , H04N5/359
CPC分类号： H04N5/378 , H04N5/3594 , H04N5/3745
摘要： Apparatus, systems, and methods are described to assist in reducing dark current in an active pixel sensor. In various embodiments, a potential barrier arrangement is configured to block the flow of charge carriers generated outside a photosensitive region. In various embodiments, a potential well-potential barrier arrangement is formed to direct charge carriers away from the photosensitive region during an integration time.
摘要翻译：描述了装置，系统和方法以帮助减少有源像素传感器中的暗电流。在各种实施例中，势垒布置被配置为阻挡在感光区域外部产生的电荷载流子的流动。在各种实施例中，形成势阱势垒布置，以在积分时间期间使电荷载流子远离光敏区域。

28. 发明授权

US08928792B1 CMOS image sensor with global shutter, rolling shutter, and a variable conversion gain, having pixels employing several BCMD transistors coupled to a single photodiode and dual gate BCMD transistors for charge storage and sensing 有权
标题翻译：具有全局快门，滚动快门和可变转换增益的CMOS图像传感器，具有使用耦合到单个光电二极管的多个BCMD晶体管的像素和用于电荷存储和感测的双栅极BCMD晶体管
公开(公告)号：US08928792B1
公开(公告)日：2015-01-06
申请号：US13153369
申请日：2011-06-03
申请人： Jaroslav Hynecek , Gennadiy Agranov , Xiangli Li , Hirofumi Komori , Xia Zhao , Chung Chun Wan
发明人： Jaroslav Hynecek , Gennadiy Agranov , Xiangli Li , Hirofumi Komori , Xia Zhao , Chung Chun Wan
IPC分类号： H04N5/335 , H04N5/359 , H04N5/3745
CPC分类号： H01L27/14612 , H01L27/14605 , H01L27/14614 , H01L27/14645 , H01L27/14656 , H01L27/14679 , H04N5/3591 , H04N5/3745
摘要： The invention describes a solid-state CMOS image sensor array and discloses image sensor array pixels with global and rolling shutter capabilities that utilize multiple BCMD transistors for a single photodiode, for charge storage and sensing. Thus, the valuable pixel area saved by employing the BCMD transistor for charge storage and sensing is used by placing several BCMD transistors coupled to one photodiode. This increases the Dynamic Range (DR) of the sensor, since the same photodiode can integrate charge for different integration times, both long and short. This allows sensing of two different image signals from a single pixel without saturation, a low level signal with long integration time followed by a high level signal with short integration time. The signal processing circuits located at the periphery of the array can then process these signals into a single Wide Dynamic Range (WDR) output. Further disclosed is an image sensor array with pixels that use BCMD transistors for charge storage and sensing having multiple concentric gates, which allows changing the conversion gain of the BCMD transistors by applying various biases to the gates. Variable conversion gain is a useful feature when building WDR sensors since low conversion gain and high well capacity allows detection of high level signals and the same structure can be used to detect, at the same time, low level signals with high conversion gain and thus low noise.
摘要翻译：本发明描述了一种固态CMOS图像传感器阵列，并公开了具有全局和滚动快门功能的图像传感器阵列像素，其利用用于单个光电二极管的多个BCMD晶体管用于电荷存储和感测。因此，通过使用耦合到一个光电二极管的几个BCMD晶体管来使用通过使用用于电荷存储和感测的BCMD晶体管节省的有价值的像素区域。这增加了传感器的动态范围（DR），因为相同的光电二极管可以集成不同集成时间的电荷，包括长和短。这允许感测来自不饱和的单个像素的两个不同图像信号，具有长积分时间的低电平信号，随后是具有短积分时间的高电平信号。位于阵列外围的信号处理电路然后可以将这些信号处理成单个宽动态范围（WDR）输出。进一步公开的是具有使用BCMD晶体管的像素的图像传感器阵列，用于具有多个同心门的电荷存储和感测，这允许通过向栅极应用各种偏压来改变BCMD晶体管的转换增益。可变转换增益是构建WDR传感器的有用特征，因为低转换增益和高容量能够允许检测高电平信号，并且可以使用相同的结构同时检测具有高转换增益的低电平信号，从而低噪声。

29. 发明授权

US08878969B2 Imaging systems with color filter barriers 有权
标题翻译：具有滤光屏障的成像系统
公开(公告)号：US08878969B2
公开(公告)日：2014-11-04
申请号：US13550539
申请日：2012-07-16
申请人： Richard Holscher , Gennadiy Agranov , Dongqing Cao
发明人： Richard Holscher , Gennadiy Agranov , Dongqing Cao
IPC分类号： H04N3/14 , H04N5/335 , H04N9/04 , H04N9/083 , H01L27/146
CPC分类号： H01L27/14629 , H01L27/14621 , H01L27/14623
摘要： An image sensor may be provided in which a pixel array includes imaging pixels and application-specific pixels. The application-specific pixels may include depth-sensing pixels, infrared imaging pixels, or other types of application-specific pixels. A color filter array may be formed over the pixel array. The color filter array may include Bayer color filter array formed over the imaging pixels. The color filter array may also include a plurality of green color filter elements formed over the application-specific pixels. Barrier structures may be interposed between imaging pixels and application-specific pixels. The barrier structures may be configured to reduce or eliminate optical crosstalk between imaging pixels and adjacent application-specific pixels. The barrier structures may include an opaque photodefinable material such as black or blue photodefinable material that may be configured to filter out wavelength bands of interest. The barrier structures may be formed during the color filter array fabrication process.
摘要翻译：可以提供图像传感器，其中像素阵列包括成像像素和应用特定像素。应用特定像素可以包括深度感测像素，红外成像像素或其他类型的应用特定像素。可以在像素阵列上形成滤色器阵列。滤色器阵列可以包括形成在成像像素上的拜耳滤色器阵列。滤色器阵列还可以包括形成在应用特定像素上的多个绿色滤色器元件。屏障结构可以介于成像像素和应用特定像素之间。阻挡结构可以被配置为减少或消除成像像素和相邻应用特定像素之间的光学串扰。阻挡结构可以包括不透明的可光限定材料，例如黑色或蓝色可光限定材料，其可以被配置为滤出感兴趣的波长带。屏障结构可以在滤色器阵列制造过程中形成。

30. 发明授权

US08829407B2 Imaging systems and methods including pixel arrays with reduced numbers of metal lines and control signals 有权
标题翻译：成像系统和方法包括具有减少数量的金属线和控制信号的像素阵列
公开(公告)号：US08829407B2
公开(公告)日：2014-09-09
申请号：US12907465
申请日：2010-10-19
申请人： John Ladd , Gennadiy Agranov , Xiangli Li
发明人： John Ladd , Gennadiy Agranov , Xiangli Li
IPC分类号： H01L27/00 , G01J1/44 , H01L27/146 , H04N5/3745 , H04N5/374
CPC分类号： H01L27/14641 , G01J1/44 , H04N5/3741 , H04N5/3745
摘要： This is generally directed to systems and methods for reduced metal lines and control signals in an imaging system. For example, in some embodiments a pixel cell of an imaging system can operate without a row select transistor, and therefore can operate without a row select metal control line. As another example, in some embodiments a pixel cell can share its reset transistor control line with a transfer transistor control line of another pixel cell. In this manner, an imaging system can be created that averages a single metal line per pixel cell. In some embodiments, operation of such reduced-metal line imaging systems can use modified timing schemes of control signals.
摘要翻译：这通常涉及用于在成像系统中减少金属线和控制信号的系统和方法。例如，在一些实施例中，成像系统的像素单元可以在没有行选择晶体管的情况下工作，因此可以在没有行选择金属控制线的情况下操作。作为另一示例，在一些实施例中，像素单元可以与另一像素单元的传输晶体管控制线共享其复位晶体管控制线。以这种方式，可以创建对每个像素单元进行平均单个金属线的成像系统。在一些实施例中，这种简化金属线成像系统的操作可以使用控制信号的修改的定时方案。

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