ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,387,887, issued on Aug. 12, was assigned to PRIMAX ELECTRONICS LTD. (Taipei, Taiwan).
"Control system" was invented by Chi-Shiu Chen (Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control system includes a control device and a display device. The control device includes plural keys in a specified arrangement. The plural keys are marked with plural first-layer options. Each first-layer option extends plural second-layer options. The display device is in communication with the control device. A display image of the display device includes plural display blocks. An arrangement of the plural display blocks is identical to the arrangement o...