ALEXANDRIA, Va., June 19 -- United States Patent no. 12,333,543, issued on June 17, was assigned to ALIBABA GROUP HOLDING Ltd. (Grand Cayman, Cayman Islands).

"Voice-based payment system" was invented by Gang Liu (Seattle), Qingen Zhao (Hangzhou, China) and Guangxing Liu (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of this application disclose a payment method, a client, an electronic device, a storage medium, and a server. The method includes: receiving a payment instruction of a user; generating, according to audio information in a voice input of the user, a voice feature vector of the audio information; performing matching between the voice feature vector and a user feature ...