ALEXANDRIA, Va., July 21 -- United States Patent no. 12,688,847, issued on July 21, was assigned to Zoom Communications Inc. (San Jose, Calif.).

"Error-correction and extraction in request dialogs" was invented by Stefan Constantin (Karlsruhe, Germany) and Alexander Waibel (Sammamish, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system comprises a machine that is configured to act upon requests from a user and sensing means for sensing an operational-mode dialog stream from the user for the machine. The system also comprises a computing system that is configured to train a neural network through machine learning to output, for each training example in a training dialog stream dataset, a corrected r...