公开(公告)号：US11921940B1

公开(公告)日：2024-03-05

申请号：US18121011

申请日：2023-03-14

Applicant: PixArt Imaging Inc.

Inventor： Tzu-Yu Chen

IPC: G06F3/038 ,  G06F3/03 ,  G06F3/0354

CPC classification number: G06F3/0383 ,  G06F3/0304 ,  G06F3/03543

Abstract: A method of an optical navigation device having a plurality of different tracking modes includes: using an image sensor to sense and generate a plurality of image frames; and, controlling and changing a tracking mode of the optical navigation device from a first tracking mode into a second tracking mode in response to an event that the optical navigation device changes from a first surface operation condition into a second surface operation condition.

公开(公告)号：US09405381B2

公开(公告)日：2016-08-02

申请号：US13889351

申请日：2013-05-08

Applicant: PixArt Imaging Inc.

Inventor： Tzu-Yu Chen ,  Chih-Yen Wu

IPC: G09G5/00 ,  G06F3/03

CPC classification number: G06F3/0304 ,  G06F3/0317

Abstract: An optical navigating apparatus, which comprises: a light source, for illuminating a surface to generate an image; an image sensor, for catching pictures of the image; and a controller, for computing a first estimating speed of the optical navigating apparatus according to a first picture of the pictures and a second picture after the first picture. The controller controls at least one of parameters as following according to the first estimating speed: a non-illuminating frequency that the light source does not illuminate pictures after the second picture; a non-catching frequency that the image sensor does not catch pictures after the second picture; a computing frequency that the controller computes pictures after the second picture, which are caught by the image sensor; and a searching range for pictures after the second picture.

Abstract translation: 一种光学导航设备，包括：光源，用于照亮表面以产生图像; 图像传感器，用于捕获图像的图像; 以及控制器，用于根据图像的第一图像和第一图像之后的第二图像计算光学导航装置的第一估计速度。 控制器根据第一估计速度控制以下参数中的至少一个：在第二图像之后光源不照亮图像的非照明频率; 图像传感器在第二图像之后不捕获图像的非捕获频率; 控制器计算在第二图像之后的图像的计算频率，其被图像传感器捕获; 以及在第二张照片之后的图片的搜索范围。

公开(公告)号：US09261982B2

公开(公告)日：2016-02-16

申请号：US13802819

申请日：2013-03-14

Applicant: PixArt Imaging Inc.

Inventor： Tzu-Yu Chen

IPC: G06F3/0354 ,  G06T5/00

CPC classification number: G06F3/03543 ,  G06T5/009

Abstract: A computer readable recording media, having at least one program code recorded thereon, an image adjusting method can be performed when the program code is read and executed. The image adjusting method comprises: catching a current image; computing at least one kind of brightness information of the current image; respectively setting corresponding threshold values to different kinds of the brightness information; and determining if a contrast enhancing operation should be performed to the current image to generate an adjusted image according to a number that the brightness information is over the threshold value.

Abstract translation: 一种在其上记录有至少一个程序代码的计算机可读记录介质，当读取和执行程序代码时，可以执行图像调整方法。 图像调整方法包括：捕获当前图像; 计算当前图像的至少一种亮度信息; 分别对不同种类的亮度信息设置相应的阈值; 以及根据所述亮度信息超过所述阈值的数量来确定是否应当对所述当前图像执行对比度增强操作以产生经调整的图像。

公开(公告)号：US20140152567A1

公开(公告)日：2014-06-05

申请号：US13802819

申请日：2013-03-14

Applicant: PIXART IMAGING INC.

Inventor： Tzu-Yu Chen

IPC: G06T5/00 ,  G06F3/0354

CPC classification number: G06F3/03543 ,  G06T5/009

Abstract: A computer readable recording media, having at least one program code recorded thereon, an image adjusting method can be performed when the program code is read and executed. The image adjusting method comprises: catching a current image; computing at least one kind of brightness information of the current image; respectively setting corresponding threshold values to different kinds of the brightness information; and determining if a contrast enhancing operation should be performed to the current image to generate an adjusted image according to a number that the brightness information is over the threshold value.

Abstract translation: 一种在其上记录有至少一个程序代码的计算机可读记录介质，当读取和执行程序代码时，可以执行图像调整方法。 图像调整方法包括：捕获当前图像; 计算当前图像的至少一种亮度信息; 分别对不同种类的亮度信息设置相应的阈值; 以及根据所述亮度信息超过所述阈值的数量来确定是否应当对所述当前图像执行对比度增强操作以产生经调整的图像。

公开(公告)号：US11808853B2

公开(公告)日：2023-11-07

申请号：US17699404

申请日：2022-03-21

Applicant: PixArt Imaging Inc.

Inventor： Hui-Hsuan Chen ,  Cheng-Lin Yang ,  Tzu-Yu Chen

IPC: G01S17/50 ,  G06T7/521 ,  H04N23/56 ,  H04N5/33 ,  G01S17/66 ,  G01S7/481 ,  G01S17/46 ,  G01S7/48 ,  H04N23/51 ,  G01S17/48 ,  G01S17/08

CPC classification number: G01S17/66 ,  G01S7/4808 ,  G01S7/4815 ,  G01S7/4816 ,  G01S17/46 ,  G01S17/50 ,  G06T7/521 ,  H04N23/51 ,  H04N23/56 ,  G01S17/08 ,  G01S17/48 ,  G06T2207/10004 ,  G06T2207/10152 ,  H04N5/33

Abstract: A tracking device including an image sensor, a light source and a processor is provided. The image sensor senses reflected light or scattered light formed by the light source illuminating a work surface. The processor calculates a trace of the tracking device according to one of the reflected light and the scattered light that generates more apparent image features so as to increase the adaptable work surfaces.

公开(公告)号：US09563286B2

公开(公告)日：2017-02-07

申请号：US14047542

申请日：2013-10-07

Applicant: PixArt Imaging Inc

Inventor： Tzu-Yu Chen

IPC: G06F3/03 ,  G06F3/0354

CPC classification number: G06F3/03543 ,  G06F3/0317

Abstract: An optical navigation device includes a light source, an image sensor, a navigation unit and a lift detection unit. The light source is configured to illuminate a work surface. The image sensor receives reflected light from the work surface to output an image frame. The navigation unit is configured to filter the image frame and output a filtered image frame. The lift detection unit is configured to calculate a maximum difference of intensities between two adjacent pixels in the image frame, calculate a pixel number of pixels of interest in the filtered image frame, and identify a lift event by comparing the maximum difference with a difference threshold and/or comparing the pixel number with an operating threshold.

Abstract translation: 光学导航装置包括光源，图像传感器，导航单元和升降检测单元。 光源被配置为照亮工作表面。 图像传感器接收来自工作表面的反射光以输出图像帧。 导航单元被配置为过滤图像帧并输出经滤波的图像帧。 升降检测单元被配置为计算图像帧中的两个相邻像素之间的最大强度差，计算滤波图像帧中的感兴趣像素的像素数，并通过将最大差与差阈值进行比较来识别提升事件 和/或将像素数与操作阈值进行比较。

公开(公告)号：US20140092019A1

公开(公告)日：2014-04-03

申请号：US13890239

申请日：2013-05-08

Applicant: PIXART IMAGING INC.

Inventor： Ching-Chih Chen ,  Ming-Tsan Kao ,  Chih-Yen Wu ,  Chien-Jung Huang ,  Yao-Hsuan Lin ,  Tzu-Yu Chen

IPC: G06F3/0354

CPC classification number: G06F3/03543 ,  G06F3/0317

Abstract: An optical navigation method includes: detecting inertia of an image of a feature point; and determining an effective sensing region of an image sensing array according to the detected inertia for reducing power consumption. Besides, an optical navigation apparatus includes a detecting circuit and a determining unit. The detecting circuit is arranged for detecting a moving inertia of a feature point. The determining circuit is coupled to the detecting circuit, and arranged for determining an effective sensing region of an image sensing array according to the detected moving inertia for reducing power consumption.

Abstract translation: 光学导航方法包括：检测特征点的图像的惯性; 以及根据检测到的惯性来确定图像感测阵列的有效感测区域以减少功耗。 此外，光学导航装置包括检测电路和确定单元。 该检测电路用于检测特征点的移动惯性。 确定电路耦合到检测电路，并且被布置为根据检测到的移动惯量来确定图像感测阵列的有效感测区域以减少功耗。

公开(公告)号：US09557831B2

公开(公告)日：2017-01-31

申请号：US13890239

申请日：2013-05-08

Applicant: PixArt Imaging Inc.

Inventor： Ching-Chih Chen ,  Ming-Tsan Kao ,  Chih-Yen Wu ,  Chien-Jung Huang ,  Yao-Hsuan Lin ,  Tzu-Yu Chen

IPC: G06F3/033 ,  G09G5/08 ,  G09G5/00 ,  G06F3/0354 ,  G06F3/03

CPC classification number: G06F3/03543 ,  G06F3/0317

Abstract: An optical navigation method includes: detecting inertia of an image of a feature point; and determining an effective sensing region of an image sensing array according to the detected inertia for reducing power consumption. Besides, an optical navigation apparatus includes a detecting circuit and a determining unit. The detecting circuit is arranged for detecting a moving inertia of a feature point. The determining circuit is coupled to the detecting circuit, and arranged for determining an effective sensing region of an image sensing array according to the detected moving inertia for reducing power consumption.

Abstract translation: 光学导航方法包括：检测特征点的图像的惯性; 以及根据检测到的惯性来确定图像感测阵列的有效感测区域以减少功耗。 此外，光学导航装置包括检测电路和确定单元。 该检测电路用于检测特征点的移动惯性。 确定电路耦合到检测电路，并且被布置为根据检测到的移动惯性来确定图像感测阵列的有效感测区域以降低功耗。

公开(公告)号：US20140098021A1

公开(公告)日：2014-04-10

申请号：US13889351

申请日：2013-05-08

Applicant: PIXART IMAGING INC.

Inventor： Tzu-Yu Chen ,  Chih-Yen Wu

IPC: G06F3/03

CPC classification number: G06F3/0304 ,  G06F3/0317

Abstract: An optical navigating apparatus, which comprises: a light source, for illuminating a surface to generate an image; an image sensor, for catching pictures of the image; and a controller, for computing a first estimating speed of the optical navigating apparatus according to a first picture of the pictures and a second picture after the first picture. The controller controls at least one of parameters as following according to the first estimating speed: a non-illuminating frequency that the light source does not illuminate pictures after the second picture; a non-catching frequency that the image sensor does not catch pictures after the second picture; a computing frequency that the controller computes pictures after the second picture, which are caught by the image sensor; and a searching range for pictures after the second picture.

Abstract translation: 一种光学导航设备，包括：光源，用于照亮表面以产生图像; 图像传感器，用于捕获图像的图像; 以及控制器，用于根据图像的第一图像和第一图像之后的第二图像计算光学导航装置的第一估计速度。 控制器根据第一估计速度控制以下参数中的至少一个：在第二图像之后光源不照亮图像的非照明频率; 图像传感器在第二图像之后不捕获图像的非捕获频率; 控制器计算在第二图像之后的图像的计算频率，其被图像传感器捕获; 以及在第二张照片之后的图片的搜索范围。

公开(公告)号：US20140097330A1

公开(公告)日：2014-04-10

申请号：US13875307

申请日：2013-05-02

Applicant: PIXART IMAGING INC.

Inventor： Ching-Chih Chen ,  Ren-Hau Gu ,  Chih-Yen Wu ,  Yao-Hsuan Lin ,  Tzu-Yu Chen

IPC: G01M11/00

CPC classification number: G01M11/00 ,  H04N1/00021 ,  H04N1/00039 ,  H04N1/0005 ,  H04N1/00074 ,  H04N17/002

Abstract: A method of testing an image sensor having a plurality of sensing units includes: utilizing the image sensor to generate a plurality of sensing results respectively corresponding to a plurality of captured images, wherein each sensing result includes a plurality of sensing values respectively generated by the sensing units; and generating a testing result which indicates a performance of the image sensor according to changing of the sensing results.

Abstract translation: 一种测试具有多个感测单元的图像传感器的方法包括：利用图像传感器产生分别对应于多个捕获图像的多个感测结果，其中每个感测结果包括分别由感测产生的多个感测值 单位; 以及根据感测结果的变化产生指示图像传感器的性能的测试结果。