ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,953, issued on July 21, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Dynamic updating of projected keyboard models to increase typing efficiency of a user" was invented by Rong Zhao (Beijing), Zhe Yan (Beijing), Li Bo Zhang (Beijing), Hao Xiang Wu (Beijing) and Li Li Guan (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method, according to one embodiment, includes causing a first keyboard model to be projected on a surface, causing cameras to monitor a first user with respect to at least three coordinate planes, collecting first information based on multiple positions of the first user's palm(s) with respect to mu...