Patents by Inventor Yan Nan Hu

Yan Nan Hu 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).

  • Navigation using a device without global positioning system assistance
    Patent number: 11280621
    Abstract: A navigation method that includes building a virtual map database of maps for structures that block GPS signals, wherein the virtual maps are created from speed and direction measurements taken from motion sensors of the mobile devices of users of a geographic information system (GIS) map server; and starting a navigation session by a user employing a navigation application that employs the GIS map server. The GIS map server includes GIS map data, and virtual map data from the virtual map database. The virtual map data is for navigation instructions without a GPS signal. A start location is set using the GIS map data to provide the initial start location; and directions are provided to the start location using a virtual map data from the virtual map database.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: March 22, 2022
    Assignee: International Business Machines Corporation
    Inventors: Yan Nan Hu, You Jing, Hui Wang, Jun Li Wang, Zhao Fei
  • NAVIGATION USING A DEVICE WITHOUT GLOBAL POSITIONING SYSTEM ASSISTANCE
    Publication number: 20200217669
    Abstract: A navigation method that includes building a virtual map database of maps for structures that block GPS signals, wherein the virtual maps are created from speed and direction measurements taken from motion sensors of the mobile devices of users of a geographic information system (GIS) map server; and starting a navigation session by a user employing a navigation application that employs the GIS map server. The GIS map server includes GIS map data, and virtual map data from the virtual map database. The virtual map data is for navigation instructions without a GPS signal. A start location is set using the GIS map data to provide the initial start location; and directions are provided to the start location using a virtual map data from the virtual map database.
    Type: Application
    Filed: January 4, 2019
    Publication date: July 9, 2020
    Inventors: Yan Nan Hu, You Jing, Hui Wang, Jun Li Wang, Zhao Fei