ALEXANDRIA, Va., April 2 -- United States Patent no. 12,266,999, issued on April 1, was assigned to Korea University Research and Business Foundation (Seoul, South Korea).

"Digital feedback based adaptive delay time control method and apparatus for high efficiency active rectifier" was invented by Hyung Min Lee (Seoul, South Korea) and Ji San Ahn (Seongnam-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a method and an apparatus of digital feedback based adaptive delay time control for a high efficiency active rectifier. According to the present invention, provided is an apparatus for digital feedback based adaptive delay time control, which adaptively compensates a driving delay...