ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,248, issued on May 27, was assigned to CHAMP VISION DISPLAY INC. (Miao-Li County, Taiwan).

"Method and system for movement guidance, electronic device and server" was invented by Hsin-Mao Chung (Miao-Li County, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and system for movement guidance, an electronic device, and a server are disclosed. The method includes: receiving a first ultrasound signal from a first ultrasound emission device via a first sound reception device and receiving a background sound signal via the first sound reception device synchronously, wherein the first ultrasound emission device is worn on a body of a first u...