ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,729, issued on July 21, was assigned to BOE TECHNOLOGY GROUP Co. LTD. (Beijing).

"Head-mounted display device and communication command system" was invented by Xudong Quan (Beijing), Lili Chen (Beijing), Haoran Jing (Beijing), Zheng Ge (Beijing), Chao Zheng (Beijing), Feng Gao (Beijing), Weihua Du (Beijing), Feng Zi (Beijing) and Chaoquan Yao (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a head-mounted display device, including: a head-mounted display portion, and a control portion in signal connection with the head-mounted display portion; the control portion includes a main battery, an auxiliary battery,...