ALEXANDRIA, Va., April 9 -- United States Patent no. 12,270,894, issued on April 8, was assigned to DENSO International America Inc. (Southfield, Mich.) and DENSO Corp. (Kariya, Japan).

"Up-sampling and cross-correlation for time of arrival determinations in passive entry/passive start systems" was invented by Raymond Michael Stitt (Ada, Mich.) and John Videtich (Zeeland, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system is provided and includes a receiver and an access module. The receiver is configured to receive a signal transmitted from a portable access device to a vehicle. The access module is configured to generate a differentiated signal based on the received signal, up-sample the differe...