US Patent Issued to ZHEJIANG UNIVERSITY on July 21 for "Method for detecting diaper wetness based on radio signal technology" (Chinese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,502, issued on July 21, was assigned to ZHEJIANG UNIVERSITY (Hangzhou, China).

"Method for detecting diaper wetness based on radio signal technology" was invented by Yanjiao Chen (Hangzhou, China), Wenyuan Xu (Hangzhou, China), Jiangyi Deng (Hangzhou, China), Meng Xue (Hangzhou, China) and Yijie Bai (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for detecting diaper wetness based on a ratio signal technology comprises: sending a frequency-modulated continuous wave signal to a diaper through a radar device to obtain a transmission signal ST(t) and a return signal SR(t); detecting a static environment factor and a dynamic env...