ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,869, issued on Sept. 8, was assigned to CHINA UNIONPAY Co. LTD. (Shanghai).

"Biometric extraction method and device for secure multi-party computation system" was invented by Qi Wang (Shanghai) and Yongkai Zhou (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A biometric feature extraction method for a secure multi-party computation system. The method comprises: acquiring preprocessed fragments of a biometric feature; and performing feature extraction on the preprocessed fragments using a neural network, wherein in the first N convolutional and pooling layers, performing data computation on the preprocessed fragments by means of secure multi...