ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,720,455, issued on Aug. 25, was assigned to QUALCOMM Inc. (San Diego).
"Clock calibration using sine waves" was invented by Yiwu Tang (San Diego), Zhifei Fan (San Diego), Chengjin Zhang (San Diego) and Yue Chao (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "Various aspects of the present disclosure generally relate to wireless communication. Some aspects more specifically relate to using one or more clock synchronization signals comprising sine waves to calibrate a local clock at an ambient internet of things (IoT) device. In some aspects, the ambient IoT device may receive a mixed signal comprising a pair of dual-tone sine waves and calibrat...