Patents by Inventor Han-Chun CHANG

Han-Chun 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: 12048916
    Abstract: The present invention relates to carbon fiber composites and a method for producing the same. By reducing specific transition metal ions with a specific concentration, the method for producing the carbon fiber composites can form nanoparticles of a transition metal on an outer surface of a titanium dioxide layer encapsulating a carbon fiber to produce the carbon fiber composites. The nanoparticles of the transition metal directionally contact the titanium dioxide layer, so that the carbon fiber composites have synergistically photocatalytic activity.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: July 30, 2024
    Assignee: FORMOSA PLASTICS CORPORATION
    Inventors: Yu-Cheng Hsu, Tang-Chun Kao, Long-Tyan Hwang, Chih-Hsiang Liang, Chien-Hsu Chou, Yi-Chuan Chang, Chih-Hsuan Ou, Han-Chang Wu
  • Publication number: 20240236875
    Abstract: A method for adjusting time-averaged (TA) parameters of a transmitting (TX) power of a radio module includes: obtaining at least one message of the at least one other radio module or at least one message of the radio module; determining a scenario of the TX power of the radio module according to the at least one message of the at least one other radio module or the at least one message of the radio module; determining whether the scenario is different from a predetermined scenario of the TX power of the radio module; and in response to the scenario being different from the predetermined scenario, adjusting the TA parameters according to the scenario.
    Type: Application
    Filed: October 2, 2023
    Publication date: July 11, 2024
    Applicant: MEDIATEK INC.
    Inventors: Yi-Ying Huang, Yi-Hsuan Lin, Han-Chun Chang
  • Publication number: 20240137875
    Abstract: A method for adjusting time-averaged (TA) parameters of a transmitting (TX) power of a radio module includes: obtaining at least one message of the at least one other radio module or at least one message of the radio module; determining a scenario of the TX power of the radio module according to the at least one message of the at least one other radio module or the at least one message of the radio module; determining whether the scenario is different from a predetermined scenario of the TX power of the radio module; and in response to the scenario being different from the predetermined scenario, adjusting the TA parameters according to the scenario.
    Type: Application
    Filed: October 1, 2023
    Publication date: April 25, 2024
    Applicant: MEDIATEK INC.
    Inventors: Yi-Ying Huang, Yi-Hsuan Lin, Han-Chun Chang
  • Publication number: 20230387955
    Abstract: A method for adjusting a transmitting (TX) power ratio of a radio module includes: separating multiple radio modules into multiple radio groups according to a radiofrequency (RF) regulation, wherein the multiple radio modules comprise the radio module; mapping an RF exposure limit to a TX power limit; interacting with at least one other radio module for adjusting the TX power ratio, to obtain at least one adjusted TX power ratio, wherein the radio module and the at least one other radio module are comprised in a same radio group of the multiple radio groups; and adjusting the TX power limit according to the at least one adjusted TX power ratio, to generate an adjusted TX power limit of the radio module.
    Type: Application
    Filed: April 18, 2023
    Publication date: November 30, 2023
    Applicant: MEDIATEK INC.
    Inventors: Fu-Tse Kao, Yi-Hsuan Lin, Han-Chun Chang, Yi-Ying Huang
  • Publication number: 20230362836
    Abstract: A method for adjusting a transmitting (TX) power ratio of a radio module includes: mapping a radiofrequency (RF) exposure limit to a TX power limit; interacting with at least one other radio module for adjusting the TX power ratio, to obtain an adjusted TX power ratio; and adjusting the TX power limit according to the adjusted TX power ratio, to generate an adjusted TX power limit of the radio module.
    Type: Application
    Filed: April 7, 2023
    Publication date: November 9, 2023
    Applicant: MEDIATEK INC.
    Inventors: Han-Chun Chang, Yen-Wen Yang, Yi-Hsuan Lin
  • Publication number: 20220369246
    Abstract: A method for improving transmission power management with compliance to regulations of radiofrequency exposure, which may comprise: at a current time, estimating whether a window average power, which may reflect average power transmitted using a radio technology during a moving time window, will exceed a power limit after the current time; if true, proceeding to at least one of a first handling subroutine and a second handling subroutine to set a power cap, and causing power transmitted to be capped by the power cap after the current time. The first handling subroutine may comprise: scheduling to set the power cap lower at a scheduled time. Estimating whether the window average power will exceed the power limit may involve discarding one of a plurality of power records. The second handling subroutine may comprise: setting the power cap not higher than the discarded one of the plurality of power records.
    Type: Application
    Filed: April 11, 2022
    Publication date: November 17, 2022
    Inventors: Yi-Hsuan LIN, Han-Chun CHANG, Chih-Yuan LIN, Yi-Ying HUANG