Patents by Inventor Jong-min IM

Jong-min IM 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: 12613159
    Abstract: Provided is a method of controlling vibration in an artificial satellite vibration test by using a controller and a plurality of shakers installed on an artificial satellite and configured to vibrate at a predetermined frequency. The method includes: performing a pre-test operation in which the controller sets the artificial satellite as a system and calculates a plurality of input values using a frequency response function of the system and an inverse matrix of the frequency response function; determining, by the controller, whether errors, which are differences between target values and a plurality of output values resulting from the plurality of input values, are within a first range; and performing, by the controller depending on results of the determination, single shaker control using one of the plurality of shakers, or multiple shaker control using the plurality of shakers.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: April 28, 2026
    Assignee: KOREA AEROSPACE RESEARCH INSTITUTE
    Inventors: Hee-Kwang Eun, Jong-Min Im, Jong-Hyub Jun, Sung-Hyun Woo, Chang-Rae Cho, Nam-Jin Moon
  • Publication number: 20230140243
    Abstract: Provided is a method of controlling vibration in an artificial satellite vibration test by using a controller and a plurality of shakers installed on an artificial satellite and configured to vibrate at a predetermined frequency. The method includes: performing a pre-test operation in which the controller sets the artificial satellite as a system and calculates a plurality of input values using a frequency response function of the system and an inverse matrix of the frequency response function; determining, by the controller, whether errors, which are differences between target values and a plurality of output values resulting from the plurality of input values, are within a first range; and performing, by the controller depending on results of the determination, single shaker control using one of the plurality of shakers, or multiple shaker control using the plurality of shakers.
    Type: Application
    Filed: November 1, 2022
    Publication date: May 4, 2023
    Inventors: Hee-Kwang EUN, Jong-min IM, Jong-Hyub JUN, Sung-Hyun WOO, Chang-rae CHO, Nam-Jin MOON