ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,236,613, issued on Feb. 25, was assigned to Carl Zeiss Industrielle Messtechnik GmbH (Oberkochen, Germany) and Carl Zeiss Meditec AG (Jena, Germany).

"Method and device for generating a control signal, marker array and controllable system" was invented by Stefan Saur (Aalen, Germany), Zuzanna Derda (Katowice, Poland), Stefan Schute (Aalen, Germany) and Adrian Samp (Slupsk, Poland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a device for generating a control signal for a controllable device are provided. The controllable device has an optical position detection system. At least two images of at least one spatial region are generated with a...