Image sensors and related methods and electronic devices

    公开(公告)号:US09743022B2

    公开(公告)日:2017-08-22

    申请号:US14851396

    申请日:2015-09-11

    IPC分类号: H04N5/217 H04N5/335 H04N5/359

    CPC分类号: H04N5/3592

    摘要: An image sensor is provided including a pixel array, a correlated double sampling (CDS) unit, an analog-digital converting (ADC) unit, a control unit, and an overflow power voltage control unit. The pixel array includes at least one unit pixel that generates accumulated charges corresponding to incident light in a photoelectric conversion period and outputs an analog signal based on the accumulated charges in a readout period. The CDS unit generates an image signal by performing a CDS operation on the analog signal. An ADC unit converts the image signal into a digital signal. A control unit controls the pixel array, the CDS unit, and the ADC unit. An overflow power voltage control unit controls an overflow power voltage to have a low voltage level in the photoelectric conversion period and controls the overflow power voltage to have a high voltage level in the readout period.

    Pixel array included in three-dimensional image sensor and method of operating three-dimensional image sensor

    公开(公告)号:US10931905B2

    公开(公告)日:2021-02-23

    申请号:US16172004

    申请日:2018-10-26

    摘要: A pixel array in a three-dimensional image sensor includes depth pixels and an ambient light cancellation (ALC) circuit. The depth pixels operate in response to photo control signals having different phases, and generate distance information of an object based on light reflected by the object. The ALC circuit removes an ambient light component from the reflected light, and is shared by the depth pixels. Each depth pixel includes a photoelectric conversion region, a floating diffusion region, a photo gate, and a drain gate. The photoelectric conversion region collects photo charges based on the reflected light. The floating diffusion region accumulates the photo charges. The photo gate is activated in response to one of the photo control signals. The photoelectric conversion region accumulates the photo charges when the photo gate is activated, and the photo charges in the photoelectric conversion region are released when the drain gate is activated.

    IMAGE SENSOR AND AN IMAGE CAPTURING APPARATUS INCLUDING THE IMAGE SENSOR
    6.
    发明申请
    IMAGE SENSOR AND AN IMAGE CAPTURING APPARATUS INCLUDING THE IMAGE SENSOR 审中-公开
    图像传感器和图像捕获设备,包括图像传感器

    公开(公告)号:US20160013226A1

    公开(公告)日:2016-01-14

    申请号:US14797570

    申请日:2015-07-13

    IPC分类号: H01L27/146 H04N5/232

    摘要: An image sensor includes a pixel array. The pixel array includes a plurality of sensing pixels and at least two focusing pixels adjacent to each other. Each of the sensing pixels is configured to output an image signal corresponding to an amount of light incident on the sensing pixels. The at least two focusing pixels are configured to output a focusing signal corresponding to a phase difference between light incident on the at least two focusing pixels. Each of the sensing pixels and the at least two focusing pixels includes a semiconductor layer including a photodetecting device. Each of the sensing pixels includes a light guide which guides incident light toward the photodetecting device, and each of the at least two focusing pixels does not include the light guide.

    摘要翻译: 图像传感器包括像素阵列。 像素阵列包括多个感测像素和至少两个彼此相邻的聚焦像素。 每个感测像素被配置为输出对应于入射在感测像素上的光量的图像信号。 所述至少两个聚焦像素被配置为输出对应于入射到所述至少两个聚焦像素的光之间的相位差的聚焦信号。 每个感测像素和至少两个聚焦像素包括包括光电检测器件的半导体层。 每个感测像素包括将入射光引导到光电检测装置的光导,并且至少两个聚焦像素中的每一个不包括光导。

    Image sensor and method of correction output signal of the image sensor
    7.
    发明授权
    Image sensor and method of correction output signal of the image sensor 有权
    图像传感器和图像传感器校正输出信号的方法

    公开(公告)号:US09392203B2

    公开(公告)日:2016-07-12

    申请号:US14499658

    申请日:2014-09-29

    摘要: A pixel array includes an array of pixels to receive light, a first pixel to be blocked from receiving the light, and a circuit to adjust signals output from pixels in the array based on a signal from the first pixel. The signals output from the pixels in the array include a first error value. The circuit reduces the first error value in the signals from the pixels in the array based on the signal from the first pixel. The circuit may also reduce a second error value in the signals output from the pixels in the array based on a signal from a second pixel. The first and second pixels may be outside of the pixel array. The first and second error values may be storage diode leakage value and a dark current value.

    摘要翻译: 像素阵列包括用于接收光的像素阵列,要阻止接收光的第一像素,以及基于来自第一像素的信号调整从阵列中的像素输出的信号的电路。 从阵列中的像素输出的信号包括第一误差值。 该电路基于来自第一像素的信号,减少来自阵列中的像素的信号中的第一误差值。 电路还可以基于来自第二像素的信号来减少从阵列中的像素输出的信号中的第二误差值。 第一和第二像素可以在像素阵列之外。 第一和第二误差值可以是存储二极管泄漏值和暗电流值。

    Apparatus and Method for Capturing Images
    8.
    发明申请
    Apparatus and Method for Capturing Images 审中-公开
    用于捕获图像的装置和方法

    公开(公告)号:US20160037101A1

    公开(公告)日:2016-02-04

    申请号:US14711289

    申请日:2015-05-13

    摘要: An apparatus and a method for capturing images are disclosed. The apparatus for capturing images includes an active pixel sensor (APS) array including a plurality of active pixels each including a photo diode and a storage diode, the plurality of active pixels being arranged in an array of N rows and M columns (where N and M are natural numbers of 2 or more), and an image signal processor that corrects an image signal output by the APS array. The APS array includes N pixel sensor rows, and the image signal processor removes noise from the image signal by using image signals that are sequentially output from non-adjacent ones of the pixel sensor rows.

    摘要翻译: 公开了一种用于捕获图像的装置和方法。 用于拍摄图像的装置包括有源像素传感器(APS)阵列,其包括多个有源像素,每个有源像素包括光电二极管和存储二极管,所述多个有源像素排列成N行和M列的阵列(其中N和 M是2以上的自然数),以及校正APS阵列输出的图像信号的图像信号处理器。 APS阵列包括N个像素传感器行,并且图像信号处理器通过使用从不相邻的像素传感器行顺序输出的图像信号来从图像信号中去除噪声。