Patents by Inventor Seonjoo CHOI

Seonjoo CHOI 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 of sharing spectrum by frequency hopping and communication system using the same
    Patent number: 10411755
    Abstract: A method of sharing a spectrum by frequency hopping includes receiving frequency usage information for a shared spectrum of a first communication system, setting a weight for determining a ratio of channels to be used for communication by frequency hopping of a second communication system from among first channels of the second communication system corresponding to an unused spectrum in the shared spectrum and second channels of the second communication system corresponding to a used spectrum in the shared spectrum, based on the received frequency usage information, and selecting a frequency hopping channel from among the first channels and the second channels based on the set weight.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: September 10, 2019
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jaesung Lim, Hoki Baek, Seonjoo Choi
  • METHOD OF SHARING SPECTRUM BY FREQUENCY HOPPING AND COMMUNICATION SYSTEM USING THE SAME
    Publication number: 20180302118
    Abstract: A method of sharing a spectrum by frequency hopping includes receiving frequency usage information for a shared spectrum of a first communication system, setting a weight for determining a ratio of channels to be used for communication by frequency hopping of a second communication system from among first channels of the second communication system corresponding to an unused spectrum in the shared spectrum and second channels of the second communication system corresponding to a used spectrum in the shared spectrum, based on the received frequency usage information, and selecting a frequency hopping channel from among the first channels and the second channels based on the set weight.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 18, 2018
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUN DATION
    Inventors: Jaesung LIM, Hoki BAEK, Seonjoo CHOI