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公开(公告)号：US20150312537A1
公开(公告)日：2015-10-29
申请号：US14259567
申请日：2014-04-23
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Johannes Solhusvik , Per Olaf Pahr
CPC classification number: H04N9/045 , H04N5/343 , H04N5/3458 , H04N5/347 , H04N5/37457 , H04N9/04511 , H04N2209/045
Abstract: Embodiments of an apparatus including a pixel array including a plurality of individual pixels grouped into pixel kernels having two or more individual pixels, wherein each pixel kernel includes a floating diffusion electrically coupled to all individual pixels in the kernel. A color filter array (CFA) is positioned over and optically coupled to the pixel array, the CFA comprising a plurality of tiled minimal repeating units, each including a plurality of scaled filters having a photoresponse selected from among two or more different photoresponses. Individual pixels within each pixel kernel are optically coupled to a scaled filter. Circuitry and logic coupled to the pixel array cause the apparatus to operate in a first mode wherein signals from a subset of individual pixels are individually transferred to their floating diffusion and read, resulting in a high-resolution, low-sensitivity sub-image and a second mode wherein signals from individual pixels in every pixel kernel are binned into the kernel's floating diffusion and read, resulting in a low-resolution, high-sensitivity image.
Abstract translation: 包括像素阵列的装置的实施例，其包括分组为具有两个或多个单独像素的像素核的多个单独像素，其中每个像素核包括电耦合到所述内核中的所有单独像素的浮动扩散。 滤色器阵列（CFA）位于像素阵列的上方并光学耦合，该CFA包括多个平铺的最小重复单元，每个最小重复单元包括具有选自两个或更多个不同光响应中的光响应的多个缩放滤镜。 每个像素内核中的各个像素光学耦合到缩放滤镜。 耦合到像素阵列的电路和逻辑使得装置以第一模式操作，其中来自各个像素的子集的信号被单独地转移到它们的浮动扩散和读取，导致高分辨率，低灵敏度的子图像和 第二模式，其中来自每个像素核心中的各个像素的信号被分样成内核的浮动扩散和读取，导致低分辨率，高灵敏度的图像。
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公开(公告)号：US09438866B2
公开(公告)日：2016-09-06
申请号：US14259567
申请日：2014-04-23
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Johannes Solhusvik , Per Olaf Pahr
CPC classification number: H04N9/045 , H04N5/343 , H04N5/3458 , H04N5/347 , H04N5/37457 , H04N9/04511 , H04N2209/045
Abstract: Embodiments of an apparatus including a pixel array including a plurality of individual pixels grouped into pixel kernels having two or more individual pixels, wherein each pixel kernel includes a floating diffusion electrically coupled to all individual pixels in the kernel. A color filter array (CFA) is positioned over and optically coupled to the pixel array, the CFA comprising a plurality of tiled minimal repeating units, each including a plurality of scaled filters having a photoresponse selected from among two or more different photoresponses. Individual pixels within each pixel kernel are optically coupled to a scaled filter. Circuitry and logic coupled to the pixel array cause the apparatus to operate in a first mode wherein signals from a subset of individual pixels are individually transferred to their floating diffusion and read, resulting in a high-resolution, low-sensitivity sub-image and a second mode wherein signals from individual pixels in every pixel kernel are binned into the kernel's floating diffusion and read, resulting in a low-resolution, high-sensitivity image.
Abstract translation: 包括像素阵列的装置的实施例，其包括分组为具有两个或多个单独像素的像素核的多个单独像素，其中每个像素核包括电耦合到所述内核中的所有单独像素的浮动扩散。 滤色器阵列（CFA）位于像素阵列的上方并光学耦合，该CFA包括多个平铺的最小重复单元，每个最小重复单元包括具有选自两个或更多个不同光响应中的光响应的多个缩放滤镜。 每个像素内核中的各个像素光学耦合到缩放滤镜。 耦合到像素阵列的电路和逻辑使得装置以第一模式操作，其中来自各个像素的子集的信号被单独地转移到它们的浮动扩散和读取，导致高分辨率，低灵敏度的子图像和 第二模式，其中来自每个像素核心中的各个像素的信号被分样成内核的浮动扩散和读取，导致低分辨率，高灵敏度的图像。
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公开(公告)号：US09063556B2
公开(公告)日：2015-06-23
申请号：US13764627
申请日：2013-02-11
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Per Olaf Pahr
CPC classification number: G05F3/02 , G05F1/02 , H01L27/14601 , H03K17/78
Abstract: An example bandgap reference circuit includes an amplifier, a first, a second, and a third switch, and a capacitor. The first switch is coupled between an inverting input and an output of the amplifier to provide a negative feedback loop around the amplifier when the first switch is closed. The capacitor has a first end coupled to the inverting input, and a second end coupled to the second switch, where the capacitor is charged to a voltage substantially equal to an offset voltage of the amplifier when the second switch is closed. The third switch is coupled to a second end of the capacitor, where the voltage across the capacitor is subtracted from an input loop of the reference circuit to cancel the offset voltage of the amplifier when the third switch is closed.
Abstract translation: 示例性带隙基准电路包括放大器，第一，第二和第三开关以及电容器。 第一开关耦合在反相输入和放大器的输出之间，以在第一开关闭合时在放大器周围提供负反馈回路。 电容器具有耦合到反相输入的第一端和耦合到第二开关的第二端，其中当第二开关闭合时，电容器被充电到基本上等于放大器的偏移电压的电压。 第三开关耦合到电容器的第二端，其中从参考电路的输入环路减去电容器两端的电压，以消除第三开关闭合时放大器的偏移电压。
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公开(公告)号：US20140224962A1
公开(公告)日：2014-08-14
申请号：US13764627
申请日：2013-02-11
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Per Olaf Pahr
IPC: G05F3/02 , H01L27/146
CPC classification number: G05F3/02 , G05F1/02 , H01L27/14601 , H03K17/78
Abstract: An example bandgap reference circuit includes an amplifier, a first, a second, and a third switch, and a capacitor. The first switch is coupled between an inverting input and an output of the amplifier to provide a negative feedback loop around the amplifier when the first switch is closed. The capacitor has a first end coupled to the inverting input, and a second end coupled to the second switch, where the capacitor is charged to a voltage substantially equal to an offset voltage of the amplifier when the second switch is closed. The third switch is coupled to a second end of the capacitor, where the voltage across the capacitor is subtracted from an input loop of the reference circuit to cancel the offset voltage of the amplifier when the third switch is closed.
Abstract translation: 示例性带隙基准电路包括放大器，第一，第二和第三开关以及电容器。 第一开关耦合在反相输入和放大器的输出之间，以在第一开关闭合时在放大器周围提供负反馈回路。 电容器具有耦合到反相输入的第一端和耦合到第二开关的第二端，其中当第二开关闭合时，电容器被充电到基本上等于放大器的偏移电压的电压。 第三开关耦合到电容器的第二端，其中从参考电路的输入环路减去电容器两端的电压，以消除第三开关闭合时放大器的偏移电压。
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