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    IMAGE SENSOR WITH OVERSAMPLED COLUMN OUTPUT
    12.
    发明申请
    IMAGE SENSOR WITH OVERSAMPLED COLUMN OUTPUT 审中-公开
    具有超级柱输出的图像传感器

    公开(公告)号：US20160234447A1

    公开(公告)日：2016-08-11

    申请号：US15013927

    申请日：2016-02-02

    Applicant: Rambus Inc.

    Inventor： Michael Guidash ,  Craig M. Smith ,  Jay Endsley

    IPC: H04N5/357 ,  H04N5/378 ,  H04N5/369

    CPC classification number: H04N5/378

    Abstract: A pixel in an integrated-circuit image sensor is enabled to output, throughout a sampling interval, an analog signal having an amplitude dependent, at least in part, on photocharge integrated within a photosensitive element of the pixel. A plurality of samples of the analog signal are generated during an initial portion of the sampling interval that is shorter than a settling time for a maximum possible level of the analog signal.

    Abstract translation: 集成电路图像传感器中的像素能够在整个采样间隔期间输出至少部分地依赖于集成在像素的光敏元件内的光电荷的幅度的模拟信号。 在采样间隔的初始部分中，比模拟信号的最大可能电平的建立时间短，产生模拟信号的多个采样。

    LOW-NOISE, HIGH DYNAMIC-RANGE IMAGE SENSOR
    13.
    发明申请
    LOW-NOISE, HIGH DYNAMIC-RANGE IMAGE SENSOR 有权
    低噪声，高动态范围图像传感器

    公开(公告)号：US20160028974A1

    公开(公告)日：2016-01-28

    申请号：US14807794

    申请日：2015-07-23

    Applicant: Rambus Inc.

    Inventor： Michael Guidash ,  Thomas Vogelsang ,  Jay Endsley ,  James E. Harris ,  Craig M. Smith ,  John Ladd ,  Michael T. Ching

    IPC: H04N5/357 ,  H04N5/355 ,  H04N5/378

    CPC classification number: H04N5/3655 ,  H04N5/355 ,  H04N5/357 ,  H04N5/3575 ,  H04N5/3651 ,  H04N5/3698 ,  H04N5/3745 ,  H04N5/37455 ,  H04N5/378

    Abstract: An integrated-circuit image sensor generates, as constituent reference voltages of a first voltage ramp, a first sequence of linearly related reference voltages followed by a second sequence of exponentially related reference voltages. The integrated-circuit image sensor compares the constituent reference voltages of the first voltage ramp with a first signal level representative of photocharge integrated within a pixel of the image sensor to identify a first reference voltage of the constituent reference voltages that is exceeded by the first signal level

    Abstract translation: 作为第一电压斜坡的组成参考电压的集成电路图像传感器产生第二线性相关参考电压序列，随后是第二指数相关参考电压序列。 集成电路图像传感器将第一电压斜坡的构成参考电压与表示在图像传感器的像素内集成的光电荷的第一信号电平进行比较，以识别由第一信号超过的构成参考电压的第一参考电压 水平

    FEEDTHROUGH-COMPENSATED IMAGE SENSOR
    14.
    发明申请
    FEEDTHROUGH-COMPENSATED IMAGE SENSOR 有权
    有偿补偿的图像传感器

    公开(公告)号：US20150229859A1

    公开(公告)日：2015-08-13

    申请号：US14616546

    申请日：2015-02-06

    Applicant: Rambus Inc.

    Inventor： Michael Guidash ,  Jay Endsley ,  John Ladd ,  Thomas Vogelsang ,  Craig M. Smith

    IPC: H04N5/374

    CPC classification number: H04N5/374 ,  H01L27/14643 ,  H04N5/3577 ,  H04N5/365 ,  H04N5/3765 ,  H04N5/378

    Abstract: A control pulse is generated a first control signal line coupled to a transfer gate of a pixel to enable photocharge accumulated within a photosensitive element of the pixel to be transferred to a floating diffusion node, the first control signal line having a capacitive coupling to the floating diffusion node. A feedthrough compensation pulse is generated on a second signal line of the pixel array that also has a capacitive coupling to the floating diffusion node. The feedthrough compensation pulse is generated with a pulse polarity opposite the pulse polarity of the control pulse and is timed to coincide with the control pulse such that capacitive feedthrough of the control pulse to the floating diffusion node is reduced.

    Abstract translation: 生成控制脉冲，该第一控制信号线耦合到像素的传输门，以使得能够累积在该像素的光敏元件内的光电荷被传送到浮动扩散节点，该第一控制信号线具有与浮置的电容耦合 扩散节点。 在像素阵列的还具有与浮动扩散节点的电容耦合的第二信号线上产生馈通补偿脉冲。 馈通补偿脉冲以与控制脉冲的脉冲极性相反的脉冲极性产生，并被定时以与控制脉冲一致，使得控制脉冲到浮动扩散节点的电容馈通减小。

    Image sensor with threshold-based output encoding
    15.
    发明申请
    Image sensor with threshold-based output encoding 有权
    具有基于阈值的输出编码的图像传感器

    公开(公告)号：US20150201142A1

    公开(公告)日：2015-07-16

    申请号：US14638161

    申请日：2015-03-04

    Applicant: Rambus Inc.

    Inventor： Craig M. Smith ,  Michael Guidash ,  Jay Endsley ,  Thomas Vogelsang ,  James E. Harris

    IPC: H04N5/378

    CPC classification number: H04N5/3559 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/14641 ,  H01L27/14643 ,  H01L27/14645 ,  H04N5/347 ,  H04N5/355 ,  H04N5/3741 ,  H04N5/37455 ,  H04N5/378

    Abstract: In a pixel array within an integrated-circuit image sensor, each of a plurality of pixels is evaluated to determine whether charge integrated within the pixel in response to incident light exceeds a first threshold. N-bit digital samples corresponding to the charge integrated within at least a subset of the plurality of pixels are generated, and then applied to a lookup table to retrieve respective M-bit digital values (M being less than N), wherein a stepwise range of charge integration levels represented by possible states of the M-bit digital values extends upward from a starting charge integration level that is determined based on the first threshold.

    Abstract translation: 在集成电路图像传感器内的像素阵列中，评估多个像素中的每一个以确定响应于入射光在像素内积分的电荷是否超过第一阈值。 产生与集成在多个像素的至少一个子集中的电荷相对应的N位数字样本，然后将其应用于查找表以检索相应的M位数字值（M小于N），其中步长范围 由M位数字值的可能状态表示的电荷积分电平从基于第一阈值确定的起始电荷积分电平向上延伸。

    Fractional-readout oversampled image sensor
    16.
    发明授权
    Fractional-readout oversampled image sensor 有权

    公开(公告)号：US10659715B2

    公开(公告)日：2020-05-19

    申请号：US16503391

    申请日：2019-07-03

    Applicant: Rambus Inc.

    Inventor： Jay Endsley ,  Thomas Vogelsang ,  Craig M. Smith ,  Michael Guidash ,  Alexander C. Schneider

    IPC: H04N5/378 ,  H04N5/235 ,  H04N5/355 ,  H04N5/353

    Abstract: Signals representative of total photocharge integrated within respective image-sensor pixels are read out of the pixels after a first exposure interval that constitutes a first fraction of a frame interval. Signals in excess of a threshold level are read out of the pixels after an ensuing second exposure interval that constitutes a second fraction of the frame interval, leaving residual photocharge within the pixels. After a third exposure interval that constitutes a third fraction of the frame interval, signals representative of a combination of at least the residual photocharge and photocharge integrated within the pixels during the third exposure interval are read out of the pixels.

    Fractional-readout oversampled image sensor
    19.
    发明授权
    Fractional-readout oversampled image sensor 有权
    分数读出过采样图像传感器

    公开(公告)号：US09521351B1

    公开(公告)日：2016-12-13

    申请号：US14995138

    申请日：2016-01-13

    Applicant: Rambus Inc.

    Inventor： Jay Endsley ,  Thomas Vogelsang ,  Craig M. Smith ,  Michael Guidash ,  Alexander C. Schneider

    IPC: H04N5/378 ,  H04N5/355 ,  H04N5/235 ,  H04N5/353

    CPC classification number: H04N5/378 ,  H04N5/2355 ,  H04N5/3532 ,  H04N5/35536

    Abstract: Signals representative of total photocharge integrated within respective image-sensor pixels are read out of the pixels after a first exposure interval that constitutes a first fraction of a frame interval. Signals in excess of a threshold level are read out of the pixels after an ensuing second exposure interval that constitutes a second fraction of the frame interval, leaving residual photocharge within the pixels. After a third exposure interval that constitutes a third fraction of the frame interval, signals representative of a combination of at least the residual photocharge and photocharge integrated within the pixels during the third exposure interval are read out of the pixels.

    Abstract translation: 在构成帧间隔的第一分数的第一曝光间隔之后，从像素中读出代表在相应图像传感器像素内的总光电荷的代表信号。 在构成帧间隔的第二部分的随后的第二曝光间隔之后，从像素中读出超过阈值电平的信号，在像素内留下残余光电荷。 在构成帧间隔的第三分数的第三曝光间隔之后，从像素中读出表示在第三曝光间隔期间集成在像素内的至少残留光电荷和光电荷的组合的信号。

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