ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,304, issued on Feb. 11, was assigned to KINPO ELECTRONICS INC. (New Taipei, Taiwan).

"Sheet detection device and detection method thereof" was invented by Tzu-Cheng Chang (New Taipei, Taiwan) and Wei-Chun Jau (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A detecting method of a sheet detection device includes: generating, by a first magnetic sensing element, a first voltage signal corresponding to a magnetic element; generating, by a second magnetic sensing element, a second voltage signal corresponding to the magnetic element; determining, by a processing element, a first relative position of the magnetic element relative to th...