ALEXANDRIA, Va., June 17 -- United States Patent no. 12,315,527, issued on May 27, was assigned to ALIBABA GROUP HOLDING Ltd. (Grand Cayman, Cayman Islands).

"Method and system for speech recognition" was invented by Shiliang Zhang (Hangzhou, China) and Ming Lei (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the disclosure provide a method and system for speech recognition. The method comprises dividing space into a plurality of regions based on preset DOA angles to allocate a signal source to the plurality of regions, wherein signals in the plurality of regions are enhanced and recognized, the result of which are fused to obtain a recognition result of the signal source."

Th...