US Patent Issued to Google on Jan. 13 for "Cascade architecture for noise-robust keyword spotting" (California Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,525,250, issued on Jan. 13, was assigned to Google LLC (Mountain View, Calif.).

"Cascade architecture for noise-robust keyword spotting" was invented by Yiteng Huang (Mountain View, Calif.) and Alexander H. Gruenstein (Mountain View, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes receiving, at a first processor of a user device, streaming multi-channel audio captured by an array of microphones, each channel including respective audio features. For each channel, the method also includes processing, by the first processor, using a first stage hotword detector, the respective audio features to determine whether a hotword is detecte...