US 12,330,590 B1
Vehicle anti-theft system
James Speers, St. Albert (CA); Jack Wisnia, Dollard-des Ormeaux (CA); and Robert Nelson, Westmount (CA)
Filed by Light Wave Technology Inc., St-Laurent (CA)
Filed on Dec. 20, 2024, as Appl. No. 18/990,632.
Claims priority of provisional application 63/727,056, filed on Dec. 2, 2024.
Claims priority of provisional application 63/571,047, filed on Mar. 28, 2024.
Int. Cl. B60R 25/24 (2013.01); B60R 25/04 (2013.01); G07C 5/00 (2006.01)
CPC B60R 25/241 (2013.01) [B60R 25/04 (2013.01); G07C 5/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An anti-theft device for a vehicle having a passive keyless entry and start (PKES) system, the device comprising:
a wireless transceiver for communication with a user authentication device;
at least one detector for detecting a challenge message from the PKES system to authenticate an OEM key fob; and
at least one transmitter responsive to detecting said challenge message and for transmitting a null message to the PKES system in at least one time slot based on a timing established by said challenge message,
wherein said null message is not transmitted when the user authorization device is in communication with the wireless transceiver and authentication is successful.