ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,739,555, issued on Sept. 15, was assigned to HTC Corp. (Taoyuan City, Taiwan).

"Head-mounted device and retractable headband" was invented by Li-Hsun Chang (Taoyuan City, Taiwan), Kuan-Ying Ou (Taoyuan City, Taiwan), Chen-Fu Chang (Taoyuan City, Taiwan) and Chih-Hsiang Hsieh (Taoyuan City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A head-mounted device and a retractable headband are provided. The head-mounted device includes a host, a retractable headband, and an earphone. The host has a first connection part and a second connection part located on two opposite sides. The retractable headband has an earphone connection part and a first conn...