ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,740, issued on Sept. 16, was assigned to GM Cruise Holdings LLC (San Francisco).

"Use of low frequency electromagnetic signals to detect occluded anomalies by a vehicle" was invented by Burkay Donderici (Burlingame, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present technology is directed to a sensor system. The sensor system may include a transmitter on a vehicle configured to transmit an electromagnetic signal in the frequency range 0.1 Hz to 10 kHz resulting in an electromagnetic field. The sensor system may also include a receiver on the vehicle configured to receive a secondary electromagnetic signal from a metallic or conductiv...