ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,998, issued on Oct. 20, was assigned to Volvo Car Corp. (Gothenburg, Sweden).
"Enhanced sound performance" was invented by Markus Rotz (Gothenburg, Sweden), Ralph Haddad (Gothenburg, Sweden) and Jonatan Ewald (Vastra Frolunda, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method, performed by a vehicle audio system, for playing audio comprising receiving data for being output through at least an internal speaker mounted inside the vehicle and at least another speaker, wherein the at least another speaker comprises one of an external speaker mounted on an outside of the vehicle and another internal speaker mounted inside the vehicle, receiv...