ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,239, issued on Sept. 23, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"System and method for acoustic channel identification-based data verification" was invented by Dushyant Sharma (Tracy, Calif.), Uwe Helmut Jost (Groton, Mass.), Patrick Aubrey Naylor (Reading, Great Britain), Ljubomir Milanovic (Vienna) and William Francis Ganong III (Brookline, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method, computer program product, and computing system for determining a plurality of transfer functions for a plurality of corresponding segments from a reference recording and a suspect recording. A delta transfer function b...