公开(公告)号：US09462179B2

公开(公告)日：2016-10-04

申请号：US14835503

申请日：2015-08-25

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tiejun Dai ,  Eiichi Funatsu ,  Donghui Wu ,  Zheng Yang ,  Xiao Xie

IPC: H04N5/232 ,  H04N5/378 ,  H04N5/376 ,  H04N5/243

CPC classification number: H04N5/23212 ,  H04N5/243 ,  H04N5/3765 ,  H04N5/378

Abstract: A method of focusing an image sensor includes scanning a first portion of an image frame from an image sensor a first time at a first rate to produce first focus data. A second portion of the image frame from the image sensor is scanned at a second rate to read image data from the second portion. The first rate is greater than the second rate. The first portion of the image frame is scanned a second time at the first rate to produce second focus data. The first focus data and the second focus data are compared, and the focus of a lens is adjusted in response to the comparison of the first focus data and the second focus data.

公开(公告)号：US09124823B2

公开(公告)日：2015-09-01

申请号：US13950970

申请日：2013-07-25

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tiejun Dai ,  Eiichi Funatsu ,  Donghui Wu ,  Zheng Yang ,  Xiao Xie

IPC: H04N5/232 ,  H04N5/335

CPC classification number: H04N5/335 ,  H04N5/23212

Abstract: A method of focusing an image sensor includes scanning a first portion of an image frame from an image sensor a first time at a first rate to produce first focus data. A second portion of the image frame from the image sensor is scanned at a second rate to read image data from the second portion. The first rate is greater than the second rate. The first portion of the image frame is scanned a second time at the first rate to produce second focus data. The first focus data and the second focus data are compared, and the focus of a lens is adjusted in response to the comparison of the first focus data and the second focus data.

Abstract translation: 聚焦图像传感器的方法包括以第一速率首先从图像传感器扫描图像帧的第一部分以产生第一焦点数据。 以第二速率扫描来自图像传感器的图像帧的第二部分，以从第二部分读取图像数据。 第一个比率大于第二个比率。 以第一速率第二次扫描图像帧的第一部分以产生第二焦点数据。 比较第一焦点数据和第二焦点数据，并且响应于第一焦点数据和第二焦点数据的比较来调整透镜的焦点。

公开(公告)号：US20150201139A1

公开(公告)日：2015-07-16

申请号：US14554791

申请日：2014-11-26

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Eiichi Funatsu ,  Yaowu Mo

IPC: H04N5/355 ,  H04N9/04

CPC classification number: H04N5/3559 ,  H04N5/37457 ,  H04N9/045

Abstract: A method of reading out a pixel includes photogenerating charge carriers during a single integration time in photodetectors of each one of a plurality of sub-pixels included in the pixel. Each one of the plurality of sub-pixels of the pixel has a same color filter. A floating diffusion node of the pixel is reset. The floating diffusion node is sampled to generate a reset output sample signal. Charge carriers that were photogenerated in a first portion of the plurality of sub-pixels are transferred to the floating diffusion node. The floating diffusion node is sampled to generate a first output sample signal. Charge carriers that were photogenerated in a second portion of the plurality of sub-pixels are transferred to the floating diffusion node. The floating diffusion node is sampled to generate a second output sample signal.

Abstract translation: 读出像素的方法包括在单个积分时间期间在包括在像素中的多个子像素中的每一个的光电检测器中的光生电荷载流子。 像素的多个子像素中的每一个具有相同的滤色器。 像素的浮动扩散节点被复位。 对浮动扩散节点进行采样以产生复位输出采样信号。 在多个子像素的第一部分中被光生的电荷载流子被传送到浮动扩散节点。 对浮动扩散节点进行采样以产生第一输出采样信号。 在多个子像素的第二部分中被光生的电荷载流子被传送到浮动扩散节点。 对浮动扩散节点进行采样以产生第二输出采样信号。

公开(公告)号：US20140340553A1

公开(公告)日：2014-11-20

申请号：US14243480

申请日：2014-04-02

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Jiangtao Kuang ,  Donghui Wu ,  Chao Wang ,  Eiichi Funatsu

IPC: H04N5/355

CPC classification number: H04N5/35554 ,  H04N5/2355 ,  H04N5/35545 ,  H04N5/35563

Abstract: A method of reading pixel data from a pixel array includes exposing each one of a plurality of regions of pixels a respective exposure time. Pixel data is read from the plurality of regions of pixels. The pixel data is interpolated from a first one of the plurality of regions of pixels to determine the pixel data of the regions of pixels other than the first one of the plurality of regions of pixels to generate a first image having the first exposure time. The pixel data is interpolated from the second one of the plurality of regions of pixels to determine the pixel data of the regions of pixels other than the second one of the plurality of regions to generate a second image having the second exposure time. The images are combined to produce a high dynamic range image.

Abstract translation: 从像素阵列读取像素数据的方法包括将多个像素区域中的每一个曝光到相应的曝光时间。 从像素的多个区域读取像素数据。 从多个像素区域中的第一个像素数据插值像素数据，以确定多个像素区域中的第一像素以外的像素区域的像素数据，以产生具有第一曝光时间的第一图像。 像素数据从多个像素区域中的第二个像素内插，以确定多个区域中的第二个区域之外的像素区域的像素数据，以产生具有第二曝光时间的第二图像。 图像被组合以产生高动态范围图像。