ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,524,911, issued on Jan. 13, was assigned to Essilor International (Charenton-le-Pont, France).

"Calibration method of a portable electronic device" was invented by Christophe Barbe (Clichy, France), David Encaoua (Carrieres-sur-Seine, France) and Hui Li (Clichy, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A calibration method for determining parameters of a portable electronic device which includes an image acquisition module to be used to determine parameters of a user and a display, where the method includes providing a known pattern, using an image of the known pattern from the image acquisition module of the portable electronic device from...