ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,940, issued on July 21, was assigned to Coretronic Corp. (Hsin-Chu, Taiwan).
"Projection device" was invented by Chih-Hui Chang (Hsin-Chu, Taiwan) and Jeng-An Liao (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A projection device including a casing, an operation module, a main board, and a conducting element is provided. The operation module includes an operation element and an operation circuit board. The operation element is disposed on the casing to execute a first operation. The operation circuit board is coupled to the operation element. The operation circuit board includes a wireless signal emitter and a first conducting por...