US Patent Issued to REALTEK SEMICONDUCTOR on July 21 for "Class-D amplifier able to reduce power noise" (Taiwanese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,337, issued on July 21, was assigned to REALTEK SEMICONDUCTOR CORP. (Hsinchu, Taiwan).

"Class-D amplifier able to reduce power noise" was invented by Chia-I Chuang (Hsinchu, Taiwan), Ling-Miao Chou (Hsinchu, Taiwan) and Che-Hung Lin (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Class-D amplifier includes a loop filter circuit, a comparator circuitry, an output circuitry, and a common-mode control circuitry. The loop filter circuit generates first and second signals according to input and output signals and adjusts common-mode levels of the first and second signals according to a first common-mode signal. The comparator circuitry ...