ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,405,388, issued on Sept. 2, was assigned to u-blox AG (Thalwil, Switzerland).
"GNSS positioning with fixing of carrier range ambiguities" was invented by Alex Parkins (Thalwil, Switzerland), Cecile Mongredien (Thalwil, Switzerland) and Ville Joensuu (Thalwil, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus are provided for calculating a position based on Global Navigation Satellite Systems (GNSS) signals. The method includes estimating a first state vector comprising a first set of float carrier range ambiguities using a first estimator, basedon first observations of the GNSS signals; and estimating a second state vecto...