ALEXANDRIA, Va., June 5 -- United States Patent no. 12,277,951, issued on April 15, was assigned to MPWAV INC. (Seoul, South Korea).
"Beamforming method using online likelihood maximization combined with steering vector estimation for robust speech recognition, and apparatus therefor" was invented by Hyung Min Park (Seoul, South Korea) and Byung Joon Cho (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A target signal extraction apparatus according to an embodiment of the present invention may comprise a steering vector estimator and a beamformer. The steering vector estimator may generate an input signal covariance according to input results for each frequency over time, generate a noise c...