ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,762, issued on April 21.

"Vehicle proximity sensor system" was invented by David Edgar (West Yorkshire, Great Britain), Milos Bozic (West Yorkshire, Great Britain) and Matthew Wroe (West Yorkshire, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle proximity sensor system comprising: a magnetometer; and a controller configured to: receive a reference magnetic field signal from the magnetometer; receive a measurement magnetic field signal from the magnetometer; determine magnetic field displacement data based on the measurement magnetic field signal and the reference magnetic field signal; and signal the presence of a vehicle bas...