Patents by Inventor Keng-Ning CHANG

Keng-Ning 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: 11958200
    Abstract: An automatic robotic arm system and a coordinating method for robotic arm and computer vision thereof are disclosed. A beam-splitting mirror splits an incident light into a visible light and a ranging light and respectively guides to an image capturing device and an optical ranging device arranged in the different reference axes. In a calibration mode, a transformation relation is computed based on a plurality of the calibration postures and corresponding calibration images. In an operation mode, a mechanical space coordinate is determined based on an operation image and the transformation relation, and the robotic arm is controlled to move based on the mechanical space coordinate.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: April 16, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Hung-Hsin Chen, Chia-Jun Yu, Qi-Ming Huang, Chin-Lun Chang, Keng-Ning Chang
  • Patent number: 11852891
    Abstract: A laser processing device for processing a workpiece is provided, including a laser emitter, a lens module, a driving module, a camera module, and a processing unit. The lens module has a first lens and a second lens, wherein the laser emitter emits a laser beam through the first and second lenses to the workpiece. The driving module drives the first lens to move relative to the second lens. The camera module captures an image of the workpiece. The processing unit is electrically connected to the camera module and the driving module, wherein the camera module transmits an image signal to the processing unit according to the image of the workpiece, and the processing unit transmits a driving signal to the driving module according to the image signal, driving the first lens to move relative to the second lens. A method for processing a workpiece is also provided.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: December 26, 2023
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Hung-Wen Chen, Ren-Feng Ding, Shih-Yung Chiu, Shu-Han Wu, Keng-Ning Chang
  • Publication number: 20230097932
    Abstract: An automatic robotic arm system and a coordinating method for robotic arm and computer vision thereof are disclosed. A beam-splitting mirror splits an incident light into a visible light and a ranging light and respectively guides to an image capturing device and an optical ranging device arranged in the different reference axes. In a calibration mode, a transformation relation is computed based on a plurality of the calibration postures and corresponding calibration images. In an operation mode, a mechanical space coordinate is determined based on an operation image and the transformation relation, and the robotic arm is controlled to move based on the mechanical space coordinate.
    Type: Application
    Filed: December 28, 2021
    Publication date: March 30, 2023
    Inventors: Hung-Hsin CHEN, Chia-Jun YU, Qi-Ming HUANG, Chin-Lun CHANG, Keng-Ning CHANG
  • Publication number: 20220410312
    Abstract: A laser soldering system using dynamic light spot and a method thereof are provided. A laser module is controlled to radiate toward multi-lens to form a light spot on a soldering target for soldering, and a lens distance between the multi-lens is adjusted to adjust a light spot size. The disclosure may provide multiple heating densities respectively adequate to different soldering status via adjusting the light spot size when using same laser power, so as to improve the soldering quality.
    Type: Application
    Filed: September 9, 2021
    Publication date: December 29, 2022
    Inventors: Chun-Lien HUANG, Wen-Yu CHUANG, Keng-Ning CHANG, Ting-Yu LU, Chun-Fei KUNG
  • Publication number: 20220082787
    Abstract: A laser processing device for processing a workpiece is provided, including a laser emitter, a lens module, a driving module, a camera module, and a processing unit. The lens module has a first lens and a second lens, wherein the laser emitter emits a laser beam through the first and second lenses to the workpiece. The driving module drives the first lens to move relative to the second lens. The camera module captures an image of the workpiece. The processing unit is electrically connected to the camera module and the driving module, wherein the camera module transmits an image signal to the processing unit according to the image of the workpiece, and the processing unit transmits a driving signal to the driving module according to the image signal, driving the first lens to move relative to the second lens. A method for processing a workpiece is also provided.
    Type: Application
    Filed: February 23, 2021
    Publication date: March 17, 2022
    Inventors: Hung-Wen CHEN, Ren-Feng DING, Shih-Yung CHIU, Shu-Han WU, Keng-Ning CHANG