ALEXANDRIA, Va., May 19 -- United States Patent no. 12,629,837, issued on May 19, was assigned to FANUC Corp. (Yamanashi, Japan).

"Method for robot assembly skill learning" was invented by Yu Zhao (Santa Clara, Calif.) and Tetsuaki Kato (Fremont, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and system for robot skill learning applicable to high precision assembly tasks employing a compliance controller. An actor-critic reinforcement learning controller is coupled to the compliance controller, where an actor neural network provides target position adjustment action data to the compliance controller based on robot state data feedback, and a critic neural network is used to train the actor. Th...