ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,821, issued on July 21, was assigned to GOERTEK TECHNOLOGY Co. LTD. (Qingdao, China).

"Electronic device" was invented by Jianlei Ren (Qingdao, China), Jian Feng (Qingdao, China), Junjie Pan (Qingdao, China), Huan Li (Qingdao, China) and Yulong Shi (Qingdao, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an electronic device including a shell, a rotating frame, a guide limit mechanism, a sensor and a controller. The rotating frame is rotatably provided outside a part of the shell and configured to rotate to at least two gears relative to the shell. In response to that the rotating frame rotates to any one of the gears, the rotati...