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1.发明授权公开(公告)号：US09531959B2
公开(公告)日：2016-12-27
申请号：US14473963
申请日：2014-08-29
CPC分类号： H04N5/2353 , H04N5/2355 , H04N5/3698
摘要： An imaging system may include a rolling shutter image sensor, data rate reduction circuitry, and image processing circuitry. The image sensor may output image data to the data rate reduction circuitry at a first high speed data rate. The data rate reduction circuitry may store the image data at the first data rate and may output the stored image data at a second reduced speed data rate. The image processing circuitry may receive the image data at the second data rate and may perform image processing operations at the second data rate. The data rate reduction circuitry may generate accumulated image frames by accumulating image frames received from the image sensor at the first data rate and may provide the accumulated frames to the image processing circuitry at the second data rate. The image processing circuitry may perform image processing operations on the accumulated frames at the second data rate.
摘要翻译： 成像系统可以包括滚动快门图像传感器，数据速率降低电路和图像处理电路。 图像传感器可以以第一高速数据速率将图像数据输出到数据速率降低电路。 数据速率降低电路可以以第一数据速率存储图像数据，并且可以以第二降低速率的数据速率输出所存储的图像数据。 图像处理电路可以以第二数据速率接收图像数据，并且可以以第二数据速率执行图像处理操作。 数据速率降低电路可以通过以第一数据速率累积从图像传感器接收的图像帧来产生累积的图像帧，并且可以以第二数据速率向图像处理电路提供累积的帧。 图像处理电路可以以第二数据速率对累积的帧执行图像处理操作。
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公开(公告)号：US09686488B2
公开(公告)日：2017-06-20
申请号：US14870578
申请日：2015-09-30
发明人： Sandor Barna
CPC分类号： H04N5/3535 , H04N5/2327 , H04N5/2353 , H04N5/2355 , H04N5/2357 , H04N5/35581 , H04N5/357 , H04N5/37213 , H04N5/3745 , H04N5/378
摘要： An image pixel may include a shutter element that is operable in an open state during which a corresponding photodiode accumulates charge and a closed state during which charge is drained from the photodiode. During a first portion of an image frame, the image pixel may operate in a flicker mitigation mode in which a non-continuous exposure period is used. During a second portion of the image frame, the image pixel may operate in a high dynamic range mode in which images are obtained with exposures of varying lengths. To conserve memory requirements, the signal from the flicker mitigation mode may not be sampled until the end of the first exposure of the high dynamic range mode.
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公开(公告)号：US09515105B2
公开(公告)日：2016-12-06
申请号：US14624917
申请日：2015-02-18
IPC分类号： H01L27/146
CPC分类号： H01L27/14605 , H01L27/14621 , H01L27/14627 , H01L27/14645 , H01L27/14654
摘要： An image sensor with an array of image sensor pixels is provided. Each image sensor pixel may include a set of photodiodes formed in a semiconductor substrate, a color filter structure formed over the set of photodiodes, a microlens formed over the color filter structure, and associated pixel circuitry coupled to the set of photodiodes. The set of photodiodes may include at least two photodiodes linked together via a preferential blooming channel that provides a reduced potential barrier between the two photodiodes. This allows excess charge to spill over from one photodiode to another when more charge is concentrated in a particular photodiode. Configured in this way, the pixel can provide depth sensing capabilities without suffering from reduced pixel capacity.
摘要翻译： 提供具有图像传感器像素阵列的图像传感器。 每个图像传感器像素可以包括形成在半导体衬底中的一组光电二极管，在所述一组光电二极管上形成的滤色器结构，形成在滤色器结构上的微透镜以及耦合到该组光电二极管的相关联的像素电路。 该组光电二极管可以包括经由优先花开通道连接在一起的至少两个光电二极管，其提供两个光电二极管之间的降低的势垒。 当多个电荷集中在特定的光电二极管时，这允许过量的电荷从一个光电二极管溢出到另一个。 以这种方式配置，像素可以提供深度感测能力，而不会降低像素容量。
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公开(公告)号：US10244191B2
公开(公告)日：2019-03-26
申请号：US15597326
申请日：2017-05-17
发明人： Sandor Barna
IPC分类号： H04N5/372 , H04N5/235 , H04N5/353 , H04N5/232 , H04N5/355 , H04N5/378 , H04N5/357 , H04N5/3745
摘要： An image pixel may include a shutter element that is operable in an open state during which a corresponding photodiode accumulates charge and a closed state during which charge is drained from the photodiode. During a first portion of an image frame, the image pixel may operate in a flicker mitigation mode in which a non-continuous exposure period is used. During a second portion of the image frame, the image pixel may operate in a high dynamic range mode in which images are obtained with exposures of varying lengths. To conserve memory requirements, the signal from the flicker mitigation mode may not be sampled until the end of the first exposure of the high dynamic range mode.
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5.发明申请公开(公告)号：US20160065821A1
公开(公告)日：2016-03-03
申请号：US14473963
申请日：2014-08-29
IPC分类号： H04N5/235
CPC分类号： H04N5/2353 , H04N5/2355 , H04N5/3698
摘要： An imaging system may include a rolling shutter image sensor, data rate reduction circuitry, and image processing circuitry. The image sensor may output image data to the data rate reduction circuitry at a first high speed data rate. The data rate reduction circuitry may store the image data at the first data rate and may output the stored image data at a second reduced speed data rate. The image processing circuitry may receive the image data at the second data rate and may perform image processing operations at the second data rate. The data rate reduction circuitry may generate accumulated image frames by accumulating image frames received from the image sensor at the first data rate and may provide the accumulated frames to the image processing circuitry at the second data rate. The image processing circuitry may perform image processing operations on the accumulated frames at the second data rate.
摘要翻译： 成像系统可以包括滚动快门图像传感器，数据速率降低电路和图像处理电路。 图像传感器可以以第一高速数据速率将图像数据输出到数据速率降低电路。 数据速率降低电路可以以第一数据速率存储图像数据，并且可以以第二降低速率的数据速率输出所存储的图像数据。 图像处理电路可以以第二数据速率接收图像数据，并且可以以第二数据速率执行图像处理操作。 数据速率降低电路可以通过以第一数据速率累积从图像传感器接收的图像帧来产生累积的图像帧，并且可以以第二数据速率向图像处理电路提供累积的帧。 图像处理电路可以以第二数据速率对累积的帧执行图像处理操作。
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