Patents by Inventor Chao-Yi LIU

Chao-Yi LIU 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).

  • Positioning system of mobile device
    Patent number: 11557021
    Abstract: A positioning system includes a storage device, a lidar and a controller. The storage device stores a global map. The lidar generates an initial local map. The controller rotates the initial local map to generate a rotated local map, compares the rotated local map and the initial local map separately with a plurality of partial areas of the global map, so as to obtain at least one similar area, calculates at least one candidate coordinates for a mobile device on the global map according to the center point of each of the similar areas, and calculates similarity scores according to each of the candidate coordinates, and selects the candidate coordinates having highest similarity score for use as coordinate of the mobile device on the global map.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: January 17, 2023
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chao-Yi Liu, Chia-Wei Lin, Yang-Sheng Wang, Chun-Ting Chen, Yu-Ching Chen
  • POSITIONING SYSTEM OF MOBILE DEVICE
    Publication number: 20200319342
    Abstract: A positioning system includes a storage device, a lidar and a controller. The storage device stores a global map. The lidar generates an initial local map. The controller rotates the initial local map to generate a rotated local map, compares the rotated local map and the initial local map separately with a plurality of partial areas of the global map, so as to obtain at least one similar area, calculates at least one candidate coordinates for a mobile device on the global map according to the center point of each of the similar areas, and calculates similarity scores according to each of the candidate coordinates, and selects the candidate coordinates having highest similarity score for use as coordinate of the mobile device on the global map.
    Type: Application
    Filed: October 10, 2019
    Publication date: October 8, 2020
    Inventors: Chao-Yi LIU, Chia-Wei LIN, Yang-Sheng WANG, Chun-Ting CHEN, Yu-Ching CHEN