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公开(公告)号：US20140340120A1
公开(公告)日：2014-11-20
申请号：US14452187
申请日：2014-08-05
Applicant: Rambus Inc.
Inventor： Brian Leibowitz , Hae-Chang Lee , Farshid Aryanfar , Kun-Yung Chang , Jie Shen
IPC: H03D13/00
CPC classification number: H03D13/00 , H03L7/08 , H03L7/0814 , H03L7/0816 , H03L7/085
Abstract: A phase detection circuit can include two phase detectors that each generate a non-zero output in response to input signals being aligned in phase. The input signals are based on two periodic signals. The phase detection circuit subtracts the output signal of one phase detector from the output signal of the other phase detector to generate a signal having a zero value when the periodic signals are in phase. Alternatively, a phase detector generates a phase comparison signal indicative of a phase difference between periodic signals. The phase comparison signal has a non-zero value in response to input signals to the phase detector being aligned in phase. The input signals are based on the periodic signals. An output circuit receives the phase comparison signal and generates an output having a zero value in response to the periodic signals being aligned in phase.
Abstract translation: 相位检测电路可以包括两个相位检测器，每个相位检测器响应于同相对准的输入信号而产生非零输出。 输入信号基于两个周期信号。 相位检测电路从另一相位检测器的输出信号中减去一相位检测器的输出信号，当周期信号同相时产生具有零值的信号。 或者，相位检测器产生指示周期信号之间的相位差的相位比较信号。 相位比较信号响应于相位检测器的相位输入信号具有非零值。 输入信号基于周期信号。 输出电路接收相位比较信号，并响应于同相对齐的周期信号产生具有零值的输出。
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公开(公告)号：US09083280B2
公开(公告)日：2015-07-14
申请号：US14452187
申请日：2014-08-05
Applicant: Rambus Inc.
Inventor： Brian Leibowitz , Hae-Chang Lee , Farshid Aryanfar , Kun-Yung Chang , Jie Shen
CPC classification number: H03D13/00 , H03L7/08 , H03L7/0814 , H03L7/0816 , H03L7/085
Abstract: A phase detection circuit can include two phase detectors that each generate a non-zero output in response to input signals being aligned in phase. The input signals are based on two periodic signals. The phase detection circuit subtracts the output signal of one phase detector from the output signal of the other phase detector to generate a signal having a zero value when the periodic signals are in phase. Alternatively, a phase detector generates a phase comparison signal indicative of a phase difference between periodic signals. The phase comparison signal has a non-zero value in response to input signals to the phase detector being aligned in phase. The input signals are based on the periodic signals. An output circuit receives the phase comparison signal and generates an output having a zero value in response to the periodic signals being aligned in phase.
Abstract translation: 相位检测电路可以包括两个相位检测器，每个相位检测器响应于相位对齐的输入信号而产生非零输出。 输入信号基于两个周期信号。 相位检测电路从另一相位检测器的输出信号中减去一相位检测器的输出信号，当周期信号同相时产生具有零值的信号。 或者，相位检测器产生指示周期信号之间的相位差的相位比较信号。 相位比较信号响应于相位检测器的相位输入信号具有非零值。 输入信号基于周期信号。 输出电路接收相位比较信号，并响应于同相对齐的周期信号产生具有零值的输出。
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公开(公告)号：US20140313387A1
公开(公告)日：2014-10-23
申请号：US14355814
申请日：2012-11-08
Applicant: RAMBUS INC.
Inventor： Thomas Vogelsang , David Geoffrey Stork , Jie Shen , Yueyong Wang , Marko Aleksic
IPC: H04N5/353 , H04N5/3745 , H04N5/369
CPC classification number: H04N5/353 , H04N5/3355 , H04N5/3696 , H04N5/37455 , H04N5/37457
Abstract: In an integrated-circuit image sensor, binary sample values are read out from an array of pixels after successive sampling intervals that collectively span an image exposure interval and include at least two sampling intervals of unequal duration. Each pixel of the array is conditionally reset after each of the successive sampling intervals according to whether the pixel yields a binary sample in a first state or a second state.
Abstract translation: 在集成电路图像传感器中，在连续的采样间隔之后从像素阵列中读出二进制采样值，该采样间隔共同跨越图像曝光间隔并且包括至少两个不等长度的采样间隔。 根据该像素是否产生处于第一状态或第二状态的二进制样本，阵列的每个像素在每个连续采样间隔之后有条件地重置。
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公开(公告)号：US20140034809A1
公开(公告)日：2014-02-06
申请号：US13952917
申请日：2013-07-29
Applicant: Rambus Inc.
Inventor： Jie Shen
IPC: H04N5/335
CPC classification number: H04N5/3355 , H01L27/146 , H01L27/14643 , H01L27/14806 , H04N5/374 , H04N5/378
Abstract: A split-counter architecture is implemented within an image sensor system. A first counter within an image sensor region counts image data from pixel regions within the image sensor region, and outputs the most significant bits of the image data to a second counter external to the image sensor region, reducing the bandwidth required between the image sensor region and the second counter, and reducing the size of the counters within the image sensor region.
Abstract translation: 分割计数器架构在图像传感器系统内实现。 图像传感器区域内的第一计数器对图像传感器区域内的像素区域的图像数据进行计数，并且将图像数据的最高有效位输出到图像传感器区域外部的第二计数器，从而减小图像传感器区域 和第二计数器，并且减小图像传感器区域内的计数器的尺寸。
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公开(公告)号：US09521338B2
公开(公告)日：2016-12-13
申请号：US14355814
申请日：2012-11-08
Applicant: Rambus Inc.
Inventor： Thomas Vogelsang , David Geoffrey Stork , Jie Shen , Yeuyong Wang , Marko Aleksic
IPC: H04N5/353 , H04N5/335 , H04N5/3745 , H04N5/369
CPC classification number: H04N5/353 , H04N5/3355 , H04N5/3696 , H04N5/37455 , H04N5/37457
Abstract: In an integrated-circuit image sensor, binary sample values are read out from an array of pixels after successive sampling intervals that collectively span an image exposure interval and include at least two sampling intervals of unequal duration. Each pixel of the array is conditionally reset after each of the successive sampling intervals according to whether the pixel yields a binary sample in a first state or a second state.
Abstract translation: 在集成电路图像传感器中，在连续的采样间隔之后从像素阵列中读出二进制采样值，该采样间隔共同跨越图像曝光间隔并且包括至少两个不等长度的采样间隔。 根据该像素是否产生处于第一状态或第二状态的二进制样本，阵列的每个像素在每个连续采样间隔之后有条件地重置。
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Patent Agency Ranking
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：US20160198104A1
公开(公告)日：2016-07-07
申请号：US14877084
申请日：2015-10-07
Applicant: Rambus Inc.
Inventor： Jie Shen
IPC: H04N5/335 , H01L27/146 , H04N5/378
CPC classification number: H04N5/3355 , H01L27/146 , H01L27/14643 , H01L27/14806 , H04N5/374 , H04N5/378
Abstract: A split-counter architecture is implemented within an image sensor system. A first counter within an image sensor region counts image data from pixel regions within the image sensor region, and outputs the most significant bits of the image data to a second counter external to the image sensor region, reducing the bandwidth required between the image sensor region and the second counter, and reducing the size of the counters within the image sensor region.
Abstract translation: 分割计数器架构在图像传感器系统内实现。 图像传感器区域内的第一计数器对图像传感器区域内的像素区域的图像数据进行计数，并且将图像数据的最高有效位输出到图像传感器区域外部的第二计数器，从而减小图像传感器区域 和第二计数器，并且减小图像传感器区域内的计数器的尺寸。
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公开(公告)号：US09185311B2
公开(公告)日：2015-11-10
申请号：US13952917
申请日：2013-07-29
Applicant: Rambus Inc.
Inventor： Jie Shen
IPC: H03K17/78 , H01L27/00 , H04N5/335 , H01L27/146 , H01L27/148 , H04N5/374 , H04N5/378
CPC classification number: H04N5/3355 , H01L27/146 , H01L27/14643 , H01L27/14806 , H04N5/374 , H04N5/378
Abstract: A split-counter architecture is implemented within an image sensor system. A first counter within an image sensor region counts image data from pixel regions within the image sensor region, and outputs the most significant bits of the image data to a second counter external to the image sensor region, reducing the bandwidth required between the image sensor region and the second counter, and reducing the size of the counters within the image sensor region.
Abstract translation: 分割计数器架构在图像传感器系统内实现。 图像传感器区域内的第一计数器对图像传感器区域内的像素区域的图像数据进行计数，并且将图像数据的最高有效位输出到图像传感器区域外部的第二计数器，从而减小图像传感器区域 和第二计数器，并且减小图像传感器区域内的计数器的尺寸。
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公开(公告)号：US09521337B1
公开(公告)日：2016-12-13
申请号：US13936985
申请日：2013-07-08
Applicant: Rambus Inc.
Inventor： Jie Shen , Yueyong Wang , James E. Harris
CPC classification number: H04N5/3355 , H04N5/2353 , H04N5/3535 , H04N5/355 , H04N5/3745 , H04N5/37455
Abstract: A self-resetting pixel having a memory element to record occurrence of an asynchronous pixel reset and circuitry to enable the memory element to be digitally sampled and cleared is disclosed, together with embodiments of digital image sensors formed by arrays or other collections of such pixels. By marking occurrence of asynchronous reset events within an in-pixel memory element that may be digitally oversampled during an exposure interval (i.e., repeatedly read-out in the form of, for example, a single-bit), it becomes possible to check for and detect asynchronous pixel reset events frequently and efficiently.
Abstract translation: 公开了具有用于记录异步像素复位的存储元件以及使存储器元件能够被数字采样和清除的电路的自复位像素，以及由这些像素的阵列或其他集合形成的数字图像传感器的实施例。 通过标记可能在曝光间隔期间被数字过采样的像素内存储元件内的异步复位事件的出现（例如，以例如单位形式重复读出），可以检查 并频繁且高效地检测异步像素复位事件。
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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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