US Patent Issued on Jan. 28 for "First-order differential microphone array with steerable beamformer" (Chinese Inventors)

ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,212,923, issued on Jan. 28.

"First-order differential microphone array with steerable beamformer" was invented by Xin Leng (Shaanxi, China) and Jingdong Chen (Shaanxi, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A first-order differential microphone array (FODMA) with a steerable beamformer is constructed by specifying a target beampattern for the FODMA at a steering angle Theta and then decomposing the target beampattern into a first sub-beampattern and a second sub-beampattern based on the steering angle Theta. A first sub-beamformer and a second sub-beamformer are generated to each filter signals from microphones of the FODMA, wherein the fi...