ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,090, issued on Sept. 1, was assigned to GOERTEK INC. (Shandong, China).
"Racket ball game method and apparatus based on a head-mounted device, and device" was invented by Shangning Hui (Shandong, China), Bin Jiang (Shandong, China) and Xiaoyu Chi (Shandong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A racket ball game method includes displaying a virtual court and displaying a virtual ball in the virtual court; determining a human body posture according to a relative position of a first handle and the head-mounted device; searching a target movement velocity ratio matching with the human body posture from a mapping relationship according t...