ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,068, issued on Feb. 17, was assigned to LG Electronics Inc. (Seoul, South Korea).

"Robot wheel driving apparatus" was invented by Jangwon Lee (Seoul, South Korea), Young Il Park (Seoul, South Korea) and Young Chul Shin (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A robot wheel driving apparatus includes a wheel configured to rotate to drive a robot, a motor housing positioned inside the wheel, a motor including a stator and a rotor configured to rotate about the stator to transmit a rotating force to the wheel, a sensor magnet connected to the rotor, and an encoder sensor configured to receive a change in a magnetic field cause...