US Patent Issued to CENTRAL CHINA NORMAL UNIVERSITY on Nov. 25 for "Non-contact fatigue detection method and system" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,318, issued on Nov. 25, was assigned to CENTRAL CHINA NORMAL UNIVERSITY (Hubei, China).

"Non-contact fatigue detection method and system" was invented by Sannyuya Liu (Hubei, China), Zongkai Yang (Hubei, China), Liang Zhao (Hubei, China), Xiaoliang Zhu (Hubei, China) and Zhicheng Dai (Hubei, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a non-contact fatigue detection method and system. The method comprises: sending a millimeter-wave (mmWave) radar signal to a person being detected, receiving an echo signal reflected from the person, and determining a time-frequency domain feature, a non-linear feature and a time-series feature ...