ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,548,547, issued on Feb. 10, was assigned to HARMAN INTERNATIONAL INDUSTRIES Inc. (Stamford, Conn.).

"Vehicle active noise cancellation system diagnostic tool" was invented by Geon-Seok Kim (Novi, Mich.), Michael Hinz (Marktoberdorf, Germany), Dylan Michael Stafford (Durham, N.C.) and Ismael Mendoza (Queretaro, Mexico).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of a diagnostic tool for an active noise cancelling system are presented. The diagnostic tool may generate an output from the active noise cancelling system and capture input to the active noise cancelling system that results from the output of the active noise cancelling system. Th...