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公开(公告)号：US20140267884A1
公开(公告)日：2014-09-18
申请号：US13842760
申请日：2013-03-15
Applicant: Rambus Inc.
Inventor： Jie Shen , Song Xue , Maxim Smirnov
IPC: H04N5/235
CPC classification number: H04N5/3535 , H04N5/2327 , H04N5/2353 , H04N5/35581 , H04N5/3765
Abstract: Methods and systems for increasing the effective dynamic range of an image sensor are disclosed. Each pixel in the sensor is exposed for a respective first exposure time. Each pixel's response to the respective first exposure is measured and compared to threshold values. Based on the pixel's response to the respective first exposure time, an optimal exposure is calculated for each pixel. The optimal exposure time is applied to each pixel by utilizing row-enabled and column-enabled signals at each pixel within the sensor.
Abstract translation: 公开了用于增加图像传感器的有效动态范围的方法和系统。 传感器中的每个像素暴露于相应的第一曝光时间。 测量每个像素对相应的第一曝光的响应并将其与阈值进行比较。 基于像素对相应的第一曝光时间的响应，针对每个像素计算最佳曝光。 通过在传感器内的每个像素处利用行使能和列使能信号，将最佳曝光时间应用于每个像素。
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公开(公告)号：US10136090B2
公开(公告)日：2018-11-20
申请号：US14772311
申请日：2014-03-14
Applicant: Rambus Inc.
Inventor： Thomas Vogelsang , Michael Guidash , Song Xue , Maxim Smirnov , Craig M. Smith , Jay Endsley , James E. Harris
IPC: H04N5/225 , H04N5/3745 , H01L27/146 , H04N5/347 , H04N5/376
Abstract: An image sensor architecture with multi-bit sampling is implemented within an image sensor system. A pixel signal produced in response to light incident upon a photosensitive element is converted to a multiple-bit digital value representative of the pixel signal. If the pixel signal exceeds a sampling threshold, the photosensitive element is reset. During an image capture period, digital values associated with pixel signals that exceed a sampling threshold are accumulated into image data.
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公开(公告)号：US09319605B2
公开(公告)日：2016-04-19
申请号：US13842760
申请日：2013-03-15
Applicant: Rambus Inc.
Inventor： Jie Shen , Song Xue , Maxim Smirnov
CPC classification number: H04N5/3535 , H04N5/2327 , H04N5/2353 , H04N5/35581 , H04N5/3765
Abstract: Methods and systems for increasing the effective dynamic range of an image sensor are disclosed. Each pixel in the sensor is exposed for a respective first exposure time. Each pixel's response to the respective first exposure is measured and compared to threshold values. Based on the pixel's response to the respective first exposure time, an optimal exposure is calculated for each pixel. The optimal exposure time is applied to each pixel by utilizing row-enabled and column-enabled signals at each pixel within the sensor.
Abstract translation: 公开了用于增加图像传感器的有效动态范围的方法和系统。 传感器中的每个像素暴露于相应的第一曝光时间。 测量每个像素对相应的第一曝光的响应并将其与阈值进行比较。 基于像素对相应的第一曝光时间的响应，针对每个像素计算最佳曝光。 通过在传感器内的每个像素处利用行使能和列使能信号，将最佳曝光时间应用于每个像素。
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公开(公告)号：US20160028985A1
公开(公告)日：2016-01-28
申请号：US14772311
申请日：2014-03-14
Applicant: RAMBUS INC.
Inventor： Thomas Vogelsang , Michael Guidash , Song Xue , Maxim Smirnov , Craig M. Smith , Jay Endsley , James E. Harris
IPC: H04N5/3745 , H04N5/376
CPC classification number: H04N5/3745 , H01L27/14634 , H01L27/14641 , H04N5/347 , H04N5/376
Abstract: An image sensor architecture with multi-bit sampling is implemented within an image sensor system. A pixel signal produced in response to light incident upon a photosensitive element is converted to a multiple-bit digital value representative of the pixel signal. If the pixel signal exceeds a sampling threshold, the photosensitive element is reset. During an image capture period, digital values associated with pixel signals that exceed a sampling threshold are accumulated into image data.
Abstract translation: 在图像传感器系统中实现具有多位采样的图像传感器架构。 响应于入射到感光元件上的光而产生的像素信号被转换成表示像素信号的多位数字值。 如果像素信号超过采样阈值，则光敏元件被复位。 在图像捕获期间，与超过采样阈值的像素信号相关联的数字值被累积到图像数据中。
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