Patents by Inventor Yvonne Hee Jun Cho

Yvonne Hee Jun Cho 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 beacon-based positioning system
    Patent number: 11567158
    Abstract: Disclosed is a beacon-based positioning system. A beacon position in which a beacon is installable is defined in a target space, and a path loss model of radio frequency (RF) signals between all beacon positions and all observation positions of a scanner is determined. Among all possible installation plans for the beacon positions, an installation plan in which different beacon signals, whose RSSIs calculated using the path loss model have significant values, are received in a number greater than or equal to a minimum reference number and a total number of the beacons installed is minimum is determined as an optimal installation plan. The optimization problem of determining the optimal installation plan may be expressed by binary linear programming.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: January 31, 2023
    Assignee: SOLiD, Inc.
    Inventors: Young Man Cho, Yvonne Hee Jun Cho
  • DESIGN METHOD OF BEACON-BASED POSITIONING SYSTEM
    Publication number: 20220065973
    Abstract: Disclosed is a beacon-based positioning system. A beacon position in which a beacon is installable is defined in a target space, and a path loss model of radio frequency (RF) signals between all beacon positions and all observation positions of a scanner is determined. Among all possible installation plans for the beacon positions, an installation plan in which different beacon signals, whose RSSIs calculated using the path loss model have significant values, are received in a number greater than or equal to a minimum reference number and a total number of the beacons installed is minimum is determined as an optimal installation plan. The optimization problem of determining the optimal installation plan may be expressed by binary linear programming.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 3, 2022
    Applicant: SOLiD, Inc.
    Inventors: Young Man Cho, Yvonne Hee Jun Cho