ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,951, issued on Jan. 20, was assigned to Xerox Corp. (Norwalk, Conn.).

"Method for resolution error detection in print device using iterative transform" was invented by Ethan Weston Hughes (Seattle), Stuart A. Schweid (Pittsford, N.Y.) and John T. Newell (Fairport, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods of identifying and measuring resolution error in a print device are disclosed. The methods include processing a scan of a document on which targets are printed at known reference locations. The system identifies and performs a 1D Hough transform process on each of the targets. In the process, the system measures differences betwee...