ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,439, issued on Nov. 3, was assigned to TMY Technolgy Inc. (Taipei City, Taiwan).

"Detection system and detection method of vital sign" was invented by Su-Wei Chang (Taipei City, Taiwan) and Hsuan-Hung Kuo (Taipei City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A detection system and a detection method of vital sign are provided. The method includes: transmitting a first radio frequency (RF) signal and receiving a first radar signal corresponding to the first RF signal by a first radar; performing IQ-demodulation on the first radar signal to obtain a first receiving in-phase component and a first receiving quadrature component; performing ...