ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,590, issued on June 17.
"Vehicle anti-theft system" was invented by James Speers (St. Albert, Canada), Jack Wisnia (Dollard-des Ormeaux, Canada) and Robert Nelson (Westmount, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle is immobilized when a personal identifying device of an authorized vehicle user in proximity to the vehicle is not authenticated and an intended use of the vehicle is detected. Various mechanisms can be used to immobilize the vehicle, such as the use to transmitting a null message to the passive keyless entry and start system in at least one time slot based on a timing established by a detected challenge message."...