ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,898, issued on Feb. 10, was assigned to TAIWAN CAROL ELECTRONICS Co. LTD. (Taichung, Taiwan).
"Microphone capable of counteracting noise" was invented by Ching-Lu Chang (Taichung, Taiwan) and Chao-Chih Chang (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A microphone includes a housing unit, a capsule unit mounted on the housing unit, a noise-counteracting unit electrically connected to the capsule unit with opposite electrical polarity, and a damping unit connected to the housing unit. The capsule unit generates a primary electrical signal composed of a primary signal part attributed to an acoustic wave and a secondary signal part...