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    CONDITIONAL-RESET, MULTI-BIT READ-OUT IMAGE SENSOR
    3.
    发明申请
    CONDITIONAL-RESET, MULTI-BIT READ-OUT IMAGE SENSOR 有权
    条件复位，多位读出图像传感器

    公开(公告)号：US20150281613A1

    公开(公告)日：2015-10-01

    申请号：US14433003

    申请日：2013-09-30

    Applicant: RAMBUS INC.

    Inventor： Thomas Vogelsang ,  Michael Guidash ,  Song Xue

    IPC: H04N5/378 ,  H04N5/376

    CPC classification number: H04N5/378 ,  H04N5/3355 ,  H04N5/35536 ,  H04N5/35545 ,  H04N5/37455 ,  H04N5/3765

    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。

    Pixel structure and reset scheme
    4.
    发明授权
    Pixel structure and reset scheme 有权
    像素结构和复位方案

    公开(公告)号：US09438826B2

    公开(公告)日：2016-09-06

    申请号：US14135014

    申请日：2013-12-19

    Applicant: Rambus Inc.

    Inventor： Song Xue ,  Thomas Vogelsang

    IPC: H01L27/146 ,  H04N5/335 ,  H04N5/347 ,  H04N5/357 ,  H04N5/3745 ,  H04N5/378

    CPC classification number: H04N5/335 ,  H04N5/347 ,  H04N5/3575 ,  H04N5/37457 ,  H04N5/378

    Abstract: An image sensor that includes a pixel array with image pixels with conditional reset circuitry. The pixels can be reset by a combination of row select and column reset signals, which implements the reset function while minimizing the number of extra signal lines. The pixels may also include pinned photodiodes. The manner in which the pinned photodiodes are used reduces noise and allows the quantization of the pixel circuits to be programmable.

    Abstract translation: 一种图像传感器，其包括具有条件复位电路的图像像素的像素阵列。 可以通过行选择和列复位信号的组合来复位像素，其实现复位功能，同时最小化额外信号线的数量。 像素还可以包括固定的光电二极管。 使用钉扎光电二极管的方式降低了噪声，并允许像素电路的量化是可编程的。

    Increasing Dynamic Range Using Multisampling
    5.
    发明申请
    Increasing Dynamic Range Using Multisampling 有权
    使用多重采样增加动态范围

    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。

    Pixel Structure and Reset Scheme
    6.
    发明申请
    Pixel Structure and Reset Scheme 有权
    像素结构和重置方案

    公开(公告)号：US20140175264A1

    公开(公告)日：2014-06-26

    申请号：US14135014

    申请日：2013-12-19

    Applicant: Rambus Inc.

    Inventor： Song Xue ,  Thomas Vogelsang

    IPC: H01L27/146

    CPC classification number: H04N5/335 ,  H04N5/347 ,  H04N5/3575 ,  H04N5/37457 ,  H04N5/378

    Abstract: An image sensor that includes a pixel array with image pixels with conditional reset circuitry. The pixels can be reset by a combination of row select and column reset signals, which implements the reset function while minimizing the number of extra signal lines. The pixels may also include pinned photodiodes. The manner in which the pinned photodiodes are used reduces noise and allows the quantization of the pixel circuits to be programmable.

    Abstract translation: 一种图像传感器，其包括具有条件复位电路的图像像素的像素阵列。 可以通过行选择和列复位信号的组合来复位像素，其实现复位功能，同时最小化额外信号线的数量。 像素还可以包括固定的光电二极管。 使用钉扎光电二极管的方式降低了噪声，并允许像素电路的量化是可编程的。

    Increasing dynamic range using multisampling
    9.
    发明授权
    Increasing dynamic range using multisampling 有权
    使用多重采样增加动态范围

    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

    IPC: H04N5/353 ,  H04N5/235 ,  H04N5/232 ,  H04N5/355 ,  H04N5/376

    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。

    Methods and circuitries for pixel sampling
    10.
    发明授权
    Methods and circuitries for pixel sampling 有权
    像素采样方法和电路

    公开(公告)号：US09264643B1

    公开(公告)日：2016-02-16

    申请号：US14140618

    申请日：2013-12-26

    Applicant: Rambus Inc.

    Inventor： Song Xue

    IPC: H04N5/378

    CPC classification number: H04N5/378 ,  H04N5/3575

    Abstract: Described is a multi-modal binary pixel sampling system incorporating a configurable sampler. The system includes an imaging pixel that outputs a series of reset and measurement values. The configurable sampler can extract image data from these values using correlated double sampling (CDS), non-correlated double sampling (NCDS), direct comparison sampling (DS), or a combination of these sampling modes. The configurable sampler is agile and may transition among modes during an exposure interval. Additional switches, storage elements, and reference nodes may be added to store additional measurements or calibration values.

    Abstract translation: 描述了结合可配置采样器的多模式二进制像素采样系统。 该系统包括输出一系列复位和测量值的成像像素。 可配置采样器可以使用相关双采样（CDS），非相关双采样（NCDS），直接比较采样（DS）或这些采样模式的组合从这些值中提取图像数据。 可配置采样器是敏捷的，并且可能在曝光间隔期间在模式之间转换。 可以添加附加的开关，存储元件和参考节点以存储额外的测量值或校准值。

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