ALEXANDRIA, Va., March 19 -- United States Patent no. 12,254,867, issued on March 18, was assigned to Amazon Technologies Inc. (Seattle).
"Spoken language understanding system" was invented by Chenlei Guo (Redmond, Wash.), Xing Fan (Redmond, Wash.), Chengyuan Ma (Bellevue, Wash.), Shuting Tang (Seattle) and Kai Wei (Seattle).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system is provided for a self-learning policy engine that can be used by various spoken language understanding (SLU) processing components. The system also provides for sharing contextual information from processing performed by an upstream SLU component to a downstream SLU component to facilitate decision making by the downstream SLU compo...