ALEXANDRIA, Va., June 25 -- United States Patent no. 12,339,654, issued on June 24, was assigned to SOOCHOW UNIVERSITY (Suzhou, China).

"Unsupervised fault diagnosis method for mechanical equipment based on adversarial flow model" was invented by Jun Wang (Suzhou, China), Jun Dai (Suzhou, China), Xingxing Jiang (Suzhou, China), Weiguo Huang (Suzhou, China) and Zhongkui Zhu (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides an unsupervised fault diagnosis method for mechanical equipment based on an adversarial flow model, main steps including: data preprocessing, converting a mechanical vibration signal into a frequency domain signal, and normalizing the amplitude val...