ALEXANDRIA, Va., June 5 -- United States Patent no. 12,277,928, issued on April 15, was assigned to Google LLC (Mountain View, Calif.).
"Automatic hotword threshold tuning" was invented by Aishanee Shah (Sunnyvale, Calif.), Alexander H. Gruenstein (Mountain View, Calif.) and Ian C. McGraw (Menlo Park, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for automatic hotword threshold tuning includes receiving, from a user device executing a first stage hotword detector configured to detect a hotword in streaming audio, audio data characterizing the detected hotword. The method includes processing, using a second stage hotword detector, the audio data to determine whether the hotword is detected by...