ALEXANDRIA, Va., June 16 -- United States Patent no. 12,659,583, issued on June 16, was assigned to Arm Ltd. (Cambridge, Great Britain).

"Contrast-based autofocus" was invented by Dumidu Sanjaya Talagala (West Midlands, Great Britain) and David Hanwell (Sale, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a method of contrast-based autofocus for an image capture device, the method comprising: obtaining first sensor data representative of a first contrast characteristic of one or more images captured with a first focus setting, the first sensor data comprising first data values from respective image zones of the one or more images, an image zone being a region o...