ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,900, issued on Feb. 10, was assigned to u-blox AG (Thalwil, Switzerland).
"Positioning with virtual satellites" was invented by Alessandro Biason (Trieste, Italy), Andrea Dalla Torre (Trieste, Italy) and Davide Lenzarini (Horgen, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus are disclosed for assisting in the determination of the position of a wireless communication device. One wireless communication device is provided comprising a transmitter configured to broadcast a direct sequence spread spectrum reference signal in a predefined ISM band. Another wireless communication device is provided comprising a receiver t...