ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,700,413, issued on Aug. 4, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Frequency mapping in the voiceprint domain" was invented by Claudio Vair (Borgone Susa, Italy), Haydar Talib (Montreal), Kevin Robert Farrell (Brick, N.J.) and Daniele Ernesto Colibro (Alessandria, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a method that includes (a) obtaining a first voice vector that was derived from a signal of a voice that was sampled at a first sampling frequency, (b) obtaining a second voice vector that was derived from a signal of a voice that was sampled at a second sampling frequency, (c) mapping the secon...