Patents by Inventor Zixuan Qu

Zixuan Qu 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).

  • Modeling mutable environmental structures
    Patent number: 11550068
    Abstract: A method of modeling mutable environmental structures includes receiving an estimated location of a Global Navigation Satellite Systems (GNSS) receiver in an environment and a plurality of GNSS-related features corresponding to a GNSS signal received at the GNSS receiver. The method also includes determining a plurality of candidate positions about the estimated location for the GNSS receiver. Each candidate position corresponds to a possible actual location of the GNSS receiver in the environment. For each candidate position, the method further includes generating, as an output from a GNSS localization model configured to receive the plurality of GNSS-related features as input, a respective probability that the respective candidate position includes the actual location of the GNSS receiver. The method also includes selecting from the plurality of candidate positions, the respective candidate position having a greatest probability as the actual location of the GNSS receiver.
    Type: Grant
    Filed: August 29, 2020
    Date of Patent: January 10, 2023
    Assignee: Google LLC
    Inventors: Stefano Maggiolo, Imad Jean Fattouch, Andrea Marchesini, Zixuan Qu, Zifei Tong
  • Modeling Mutable Environmental Structures
    Publication number: 20220066053
    Abstract: A method of modeling mutable environmental structures includes receiving an estimated location of a Global Navigation Satellite Systems (GNSS) receiver in an environment and a plurality of GNSS-related features corresponding to a GNSS signal received at the GNSS receiver. The method also includes determining a plurality of candidate positions about the estimated location for the GNSS receiver. Each candidate position corresponds to a possible actual location of the GNSS receiver in the environment. For each candidate position, the method further includes generating, as an output from a GNSS localization model configured to receive the plurality of GNSS-related features as input, a respective probability that the respective candidate position includes the actual location of the GNSS receiver. The method also includes selecting from the plurality of candidate positions, the respective candidate position having a greatest probability as the actual location of the GNSS receiver.
    Type: Application
    Filed: August 29, 2020
    Publication date: March 3, 2022
    Applicant: Google LLC
    Inventors: Stefano Maggiolo, Imad Jean Fattouch, Andrea Marchesini, Zixuan Qu, Zifei Tong