ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,401, issued on Dec. 2, was assigned to Realtek Semiconductor Corp. (HsinChu, Taiwan).
"Power amplifying circuits" was invented by Po-Chih Wang (HsinChu, Taiwan), Hsiao-Tsung Yen (HsinChu, Taiwan) and Ka-Un Chan (HsinChu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power amplifying circuit includes a first input terminal applied with a first bias voltage, a first amplifying circuit generating a first output signal and a second output signal according to an input signal and a first matching circuit combining the first output signal and the second output signal to generate an output signal. The first amplifying circuit includes a first trans...