Patents by Inventor Yang Chih Feng

Yang Chih Feng 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).

  • Method and apparatus for impact position detection of impact sport equipment
    Patent number: 11890519
    Abstract: A method and an apparatus for impact position detection of impact sport equipment are provided. The method includes following steps: retrieving a vibration signal generated by a vibration sensor detecting vibration caused by impact of impact sport equipment and a ball; performing a spectrum analysis on the vibration signal to obtain eigenfrequencies of the vibration signal in a frequency domain; and calculating at least one piece of characteristic information by using an amplitude of each eigenfrequency and inputting the same into a prediction model established in advance by using machine learning, so as to estimate an impact position of the ball on the impact sport equipment, in which the prediction model is trained by using characteristic information of multiple vibration signals and corresponding impact positions.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: February 6, 2024
    Assignee: National Tsing Hua University
    Inventors: Yang Chih Feng, Chiang Liu, Hsi-Pin Ma
  • METHOD AND APPARATUS FOR IMPACT POSITION DETECTION OF IMPACT SPORT EQUIPMENT
    Publication number: 20230256311
    Abstract: A method and an apparatus for impact position detection of impact sport equipment are provided. The method includes following steps: retrieving a vibration signal generated by a vibration sensor detecting vibration caused by impact of impact sport equipment and a ball; performing a spectrum analysis on the vibration signal to obtain eigenfrequencies of the vibration signal in a frequency domain; and calculating at least one piece of characteristic information by using an amplitude of each eigenfrequency and inputting the same into a prediction model established in advance by using machine learning, so as to estimate an impact position of the ball on the impact sport equipment, in which the prediction model is trained by using characteristic information of multiple vibration signals and corresponding impact positions.
    Type: Application
    Filed: April 11, 2022
    Publication date: August 17, 2023
    Applicant: National Tsing Hua University
    Inventors: Yang Chih Feng, Chiang Liu, Hsi-Pin Ma