Patents by Inventor Jun-Tao Gao

Jun-Tao Gao 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 apparatus capable of correcting position data according to map matching position and method thereof
    Patent number: 8082094
    Abstract: This invention discloses a navigation apparatus correcting position data according to a map matching position and a method thereof. The navigation apparatus includes a satellite positioning module, an electronic map database, a map matching module and a correction module. The satellite positioning module provides a plurality of position data. The electronic map database stores at least one map data. The map matching module matches a position data with a map data to generate a map matching position corresponding to the position data. The correction module provides at least one turning point, and each turning point is situated at the map matching position to form an turning angular. If the turning angular exceeds a threshold value, the correction module calculates a position data and a map matching position statically collected within a predetermined time according to an algorithm to generate an offset to correct the position data behind the turning point.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: December 20, 2011
    Assignee: Mitac Research (Shanghai) Ltd.
    Inventor: Jun-Tao Gao
  • Navigation apparatus capable of correcting position data according to map matching position and method thereof
    Publication number: 20080319657
    Abstract: This invention discloses a navigation apparatus correcting position data according to a map matching position and a method thereof. The navigation apparatus includes a satellite positioning module, an electronic map database, a map matching module and a correction module. The satellite positioning module provides a plurality of position data. The electronic map database stores at least one map data. The map matching module matches a position data with a map data to generate a map matching position corresponding to the position data. The correction module provides at least one turning point, and each turning point is situated at the map matching position to form an turning angular. If the turning angular exceeds a threshold value, the correction module calculates a position data and a map matching position statically collected within a predetermined time according to an algorithm to generate an offset to correct the position data behind the turning point.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 25, 2008
    Applicants: MITAC INTERNATIONAL CORP., MITAC RESEARCH (SHANGHAI) LTD.
    Inventor: Jun-Tao Gao