Patents by Inventor Bo-Yi Chang

Bo-Yi Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12360933
    Abstract: There is provided a detection system including a detection device and a post processor. The detection device and the post processor exchange data therebetween using a predetermined communication protocol. The detection device outputs at least one of calculated data and raw data to the post processor in response to each polling according to a request from the post processor. The raw data is provided to the post processor for the machine learning.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: July 15, 2025
    Assignee: PIXART IMAGING INC.
    Inventors: Yao-Hsuan Lin, Bo-Yi Chang, Sheng-Hung Wang, Yu-Chen Fu
  • Patent number: 11947737
    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.
    Type: Grant
    Filed: May 4, 2023
    Date of Patent: April 2, 2024
    Assignee: PixArt Imaging Inc.
    Inventors: Bo-Yi Chang, Yao-Hsuan Lin
  • Publication number: 20230315218
    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.
    Type: Application
    Filed: May 4, 2023
    Publication date: October 5, 2023
    Applicant: PixArt Imaging Inc.
    Inventors: Bo-Yi Chang, Yao-Hsuan Lin
  • Patent number: 11740709
    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.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: August 29, 2023
    Assignee: PixArt Imaging Inc.
    Inventors: Bo-Yi Chang, Yao-Hsuan Lin
  • Publication number: 20230176988
    Abstract: There is provided a detection system including a detection device and a post processor. The detection device and the post processor exchange data therebetween using a predetermined communication protocol. The detection device outputs at least one of calculated data and raw data to the post processor in response to each polling according to a request from the post processor. The raw data is provided to the post processor for the machine learning.
    Type: Application
    Filed: December 3, 2021
    Publication date: June 8, 2023
    Inventors: Yao-Hsuan LIN, Bo-Yi CHANG, Sheng-Hung WANG, Yu-Chen FU
  • Publication number: 20220397966
    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.
    Type: Application
    Filed: June 10, 2021
    Publication date: December 15, 2022
    Applicant: PixArt Imaging Inc.
    Inventors: Bo-Yi Chang, Yao-Hsuan Lin
  • Patent number: 9846816
    Abstract: An image segmentation threshold value determining method, comprising: defining a plurality of image regions of a first sensing image; determining a first, a second part image segmentation threshold values according to a first, second image regions of the image regions; performing a first, a second image segmentation operation to the first sensing image according to the first, the second part image segmentation threshold values to acquire a first, a second segmented images; and selecting one of the first part image segmentation threshold value and the second part image segmentation threshold value as the first image segmentation threshold value according to the first segmented image and the second segmented image.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: December 19, 2017
    Assignee: PixArt Imaging Inc.
    Inventor: Bo-Yi Chang
  • Publication number: 20170116742
    Abstract: An image segmentation threshold value determining method, comprising: defining a plurality of image regions of a first sensing image; determining a first, a second part image segmentation threshold values according to a first, second image regions of the image regions; performing a first, a second image segmentation operation to the first sensing image according to the first, the second part image segmentation threshold values to acquire a first, a second segmented images; and selecting one of the first part image segmentation threshold value and the second part image segmentation threshold value as the first image segmentation threshold value according to the first segmented image and the second segmented image.
    Type: Application
    Filed: June 3, 2016
    Publication date: April 27, 2017
    Inventor: Bo-Yi Chang