公开(公告)号：US11947737B2

公开(公告)日：2024-04-02

申请号：US18143085

申请日：2023-05-04

Applicant: PixArt Imaging Inc.

Inventor： Bo-Yi Chang ,  Yao-Hsuan Lin

IPC: G06F3/03 ,  G06F3/0354 ,  H04N23/71

CPC classification number: G06F3/0321 ,  G06F3/03543 ,  H04N23/71

Abstract: An optical navigation device control method comprising: (a) computing brightness contrast information of original images captured by an image sensor of an optical navigation device; (b) computing brightness variation levels of the original images; (c) improving image qualities of the original images based on the brightness contrast information and the brightness variation levels, to generate adjusted images; and (d) computing movements of the optical navigation device based on displacement between the adjusted images. The optical navigation device is located on a surface. The step (d) comprises: collecting reference images of different parts of the surface for a plurality of combinations of moving directions of the optical navigation device and placement directions of the surface; and determining a type of the surface via comparing images of a current surface with the reference images.

公开(公告)号：US11740709B2

公开(公告)日：2023-08-29

申请号：US17343754

申请日：2021-06-10

Applicant: PixArt Imaging Inc.

Inventor： Bo-Yi Chang ,  Yao-Hsuan Lin

IPC: G06F3/03 ,  G06F3/0354 ,  H04N23/71

CPC classification number: G06F3/0321 ,  G06F3/03543 ,  H04N23/71

Abstract: A computer readable recording medium comprising at least one program stored therein. An image quality improving method is performed when the program is executed. The image quality improving method comprises: (a) computing brightness contrast information of an original image captured by an image sensor of an optical navigation device; (b) computing a brightness variation level of the original image; and (c) improving an image quality of the original image based on the brightness contrast information and the brightness variation level.

公开(公告)号：US09316563B2

公开(公告)日：2016-04-19

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 ,  H04N17/02 ,  H04N1/00 ,  H04N17/00

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。

公开(公告)号：US20230315218A1

公开(公告)日：2023-10-05

申请号：US18143085

申请日：2023-05-04

Applicant: PixArt Imaging Inc.

Inventor： Bo-Yi Chang ,  Yao-Hsuan Lin

IPC: G06F3/03 ,  G06F3/0354 ,  H04N23/71

CPC classification number: G06F3/0321 ,  G06F3/03543 ,  H04N23/71

Abstract: An optical navigation device control method comprising: (a) computing brightness contrast information of original images captured by an image sensor of an optical navigation device; (b) computing brightness variation levels of the original images; (c) improving image qualities of the original images based on the brightness contrast information and the brightness variation levels, to generate adjusted images; and (d) computing movements of the optical navigation device based on displacement between the adjusted images. The optical navigation device is located on a surface. The step (d) comprises: collecting reference images of different parts of the surface for a plurality of combinations of moving directions of the optical navigation device and placement directions of the surface; and determining a type of the surface via comparing images of a current surface with the reference images.

公开(公告)号：USRE47888E1

公开(公告)日：2020-03-03

申请号：US16131207

申请日：2018-09-14

Applicant: PixArt Imaging Inc.

Inventor： Yi-Fang Lee ,  Yao-Hsuan Lin

IPC: G06F3/041

Abstract: A touch system with track detecting function includes a touch pad for sequentially sensing a plurality of positions of an indication object at a plurality of moments in order to detect a track of the indication object on the touch pad, and a processor for continuously generating motion vectors according to the track of the indication object on the touch pad, for generating a candidate motion vector according to at least one motion vector, and for nonlinearly generating a target motion vector according to the candidate motion vector in order to move a target shown on a display panel. Each of the motion vectors represents a difference between a position of the indication object and a next position of the indication object.

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：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。

公开(公告)号：US20220397966A1

公开(公告)日：2022-12-15

申请号：US17343754

申请日：2021-06-10

Applicant: PixArt Imaging Inc.

Inventor： Bo-Yi Chang ,  Yao-Hsuan Lin

IPC: G06F3/03 ,  G06F3/0354 ,  H04N5/235

Abstract: A computer readable recording medium comprising at least one program stored therein. An image quality improving method is performed when the program is executed. The image quality improving method comprises: (a) computing brightness contrast information of an original image captured by an image sensor of an optical navigation device; (b) computing a brightness variation level of the original image; and (c) improving an image quality of the original image based on the brightness contrast information and the brightness variation level.

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。