Patents by Inventor Xiangqian (Daniel) Liao

Xiangqian (Daniel) Liao 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).

  • System and method for verifying consistent measurements in performing GPS positioning
    Patent number: 8144053
    Abstract: Systems and methods are provided for verifying whether a set of satellite signals may be used to calculate an estimated position. Example systems and methods may include a GPS receiver for receiving the satellite signals and a measurement consistency verifier to analyze a geometric configuration of the satellites from which the satellite signals were acquired. The measurement consistency verifier may determine if the satellites are sufficiently close to one another to provide consistent measurements.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: March 27, 2012
    Assignee: CSR Technology Inc.
    Inventors: Xiangqian (Daniel) Liao, Mangesh Chansarkar