Patents by Inventor Pao-Chung Chao

Pao-Chung Chao 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: 10750068
    Abstract: A camera module testing method is applied to a camera module including a camera lens and a photosensitive element. In a step (A), an original image is captured through the camera lens and the photosensitive element. In a step (B), the original image is converted into a gray scale image. In a step (C), the gray scale image is converted into a binary image according to a critical gray scale value. In a step (D), a boundary contour is obtained according to plural pixels of the binary image higher than or equal to the critical gray scale value. In a step (E), a contour center of the boundary contour is obtained. Then, a step (F) is performed to judge whether an optical axis of the camera lens is aligned with an imaging center of the photosensitive element according to the imaging center and the contour center.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: August 18, 2020
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Pei-Ming Chang, Pao-Chung Chao, Shih-Chieh Hsu, Wei-Lung Huang
  • Patent number: 10725898
    Abstract: An information management method for a testing network framework is provided. The testing network framework includes a first server and at least one computer. The method includes the following steps. Firstly, the at least one computer downloads and executes a test application program. Then, the at least one computer is connected to the first server, and provides a device identification code and a network address value of the at least one computer to the first server. If the first server judges that the corresponding device identification code complies with a first default condition and the corresponding network address value complies with a second default condition, the corresponding computer is authenticated, and a test setting information is provided from the first server to the corresponding computer. After the test setting information is downloaded to the corresponding computer, a test process is performed.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: July 28, 2020
    Assignee: PRIMAX ELECTRONICS LTD
    Inventors: Pei-Ming Chang, Pao-Chung Chao, Shih-Chieh Hsu
  • Publication number: 20200186789
    Abstract: A camera module testing method is applied to a camera module including a camera lens and a photosensitive element. In a step (A), an original image is captured through the camera lens and the photosensitive element. In a step (B), the original image is converted into a gray scale image. In a step (C), the gray scale image is converted into a binary image according to a critical gray scale value. In a step (D), a boundary contour is obtained according to plural pixels of the binary image higher than or equal to the critical gray scale value. In a step (E), a contour center of the boundary contour is obtained. Then, a step (F) is performed to judge whether an optical axis of the camera lens is aligned with an imaging center of the photosensitive element according to the imaging center and the contour center.
    Type: Application
    Filed: February 26, 2019
    Publication date: June 11, 2020
    Inventors: Pei-Ming Chang, Pao-Chung Chao, Shih-Chieh Hsu, Wei-Lung Huang
  • Publication number: 20200019853
    Abstract: A product testing system and an auxiliary testing method are provided. The product testing system includes a computer and a test fixture. The computer has a machine learning model. The auxiliary testing method includes the following steps. Firstly, the test fixture tests the plural under-test products sequentially, and generates corresponding test data to the computer. Then, the computer generates plural trend line graphs corresponding to the test data. Then, the operator determines corresponding human judging results according to the trend line graphs. The test data, the trend line graphs and the human judging results are inputted into the machine learning model, and a learning process is performed. If the number of samples reaches a predetermined threshold value, the machine learning model generates auxiliary judging results according to the corresponding test data and the corresponding trend line graphs.
    Type: Application
    Filed: November 15, 2018
    Publication date: January 16, 2020
    Inventors: Shih-Chieh Hsu, Pei-Ming Chang, Pao-Chung Chao, Wei-Lung Huang
  • Publication number: 20190331709
    Abstract: A sensor testing system includes a standard unit and a test fixture. The standard unit and plural under-test sensors are placed on a test platform of the test fixture. A sensor testing method includes following steps. Firstly, the standard unit and the plural under-test sensors are arranged to generate a main process. Then, the standard unit and the plural under-test sensors are assigned to generate plural sub-threads according to the main process. When the main process is executed, the plural sub-threads are synchronously executed. Then, the test platform is enabled to create a motion in a first direction, and the main process waits for a predetermined time period. Then, the standard unit and the under-test sensors sense the motion in the first direction. When the sensing results are generated, the standard unit and the under-test sensors respond to the main process.
    Type: Application
    Filed: July 25, 2018
    Publication date: October 31, 2019
    Inventors: Pei-Ming Chang, Pao-Chung Chao, Shih-Chieh Hsu
  • Publication number: 20190251021
    Abstract: An information management method for a testing network framework is provided. The testing network framework includes a first server and at least one computer. The method includes the following steps. Firstly, the at least one computer downloads and executes a test application program. Then, the at least one computer is connected to the first server, and provides a device identification code and a network address value of the at least one computer to the first server. If the first server judges that the corresponding device identification code complies with a first default condition and the corresponding network address value complies with a second default condition, the corresponding computer is authenticated, and a test setting information is provided from the first server to the corresponding computer. After the test setting information is downloaded to the corresponding computer, a test process is performed.
    Type: Application
    Filed: May 29, 2018
    Publication date: August 15, 2019
    Inventors: Pei-Ming Chang, Pao-Chung Chao, Shih-Chieh Hsu