ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,580, issued on Sept. 8, was assigned to Amazon Technologies Inc. (Seattle).

"Natural language processing using context" was invented by Da Teng (Sammamish, Wash.), Adrian Evans (Lake Tapps, Wash.) and Naresh Narayanan (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure proposes systems and methods for processing natural language inputs using data associated with multiple language recognition contexts (LRC). A system using multiple LRCs can receive input data from a device, identify a first identifier associated with the device, and further identify second identifiers associated with the first identifier and representing candidate...