ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,699,495, issued on Aug. 4, was assigned to E Ink Holdings Inc. (Hsinchu, Taiwan).
"Electromagnetic touch device" was invented by Chien-Hsing Chang (Hsinchu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electromagnetic touch device including a sensor panel and a driving circuit is provided. The sensor panel includes multiple sensor coils independently driven. Each of the sensor coils includes a first connecting terminal, a second connecting terminal, and a coil wiring connected between the first connecting terminal and the second connecting terminal. The coil wiring includes multiple conductor wires that are connected in parallel. The driving ...