ALEXANDRIA, Va., July 3 -- United States Patent no. 12,348,233, issued on July 1, was assigned to SAMSUNG ELECTRONICS Co. LTD. (Suwon-si, South Korea).
"Frequency multiplier for phase rotation" was invented by Wooseok Choi (Seoul, South Korea) and Joonghyun Song (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A frequency multiplier includes a first digitally controlled delay line (DCDL) configured to receive a first clock signal and generate a second clock signal by changing a phase of the first clock signal, a multiplying delay-locked loop (MDLL) configured to generate a third clock signal by multiplying a frequency of the second clock signal, and a DCDL calibration circuit configured to ...