ALEXANDRIA, Va., March 24 -- United States Patent no. 12,586,569, issued on March 24, was assigned to Google LLC (Mountain View, Calif.).

"Knowledge distillation with domain mismatch for speech recognition" was invented by Tien-Ju Yang (Mountain View, Calif.), You-Chi Cheng (Mountain View, Calif.), Shankar Kumar (New York), Jared Lichtarge (Mountain View, Calif.), Ehsan Amid (Mountain View, Calif.), Yuxin Ding (Mountain View, Calif.), Rajiv Mathews (Sunnyvale, Calif.) and Mingqing Chen (Saratoga, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes receiving distillation data including a plurality of out-of-domain training utterances. For each particular out-of-domain training utterance of...