Resolving time ambiguity in GPS using over-determined navigation solution
Patent 6618670 Issued on September 9, 2003. Estimated Expiration Date: 
September 14, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 14, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod and apparatus for smoothing code measurements in a global positioning system receiver Local-area augmentation system for satellite navigation precision-approach system Automatic transference between real-time operation and post-processing in a GPS survey system Automatic event recognition to trigger recording changes Multi-valued variable ambiguity resolution for satellite navigation signal carrier wave path length determination Patent #: 6259398 InventorApplicationNo. 09/952548 filed on 09/14/2001US Classes:701/213, Using Global Positioning System (GPS)342/357.04, With ambiguity resolving342/357.06, Using Global Positioning Satellite (GPS or Glonass)701/207, Employing position determining equipment701/214, Means to improve accuracy of position or location701/215Having multiple GPS antennas or receivers (e.g., differential GPS)ExaminersPrimary: Arthur, GertrudeInternational ClassG01S 1/00 (20060101)AbstractThe invention describes methods and apparatuses for determining a user position based on a minimization of the errors introduced into the GPS system because of clock bias, noise, multipath, or other uncertainties. By overdetermining position, for example, clock biases can be removed from the system. | |
