ALEXANDRIA, Va., June 17 -- United States Patent no. 12,310,658, issued on May 27, was assigned to NIPPON TELEGRAPH AND TELEPHONE Corp. (Tokyo).

"Image generation apparatus, image generation method, and program" was invented by Kenchi Hosokawa (Tokyo) and Kazushi Maruya (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A contrast sensitivity measurement apparatus (1) generates a stimulating image to be output to an external display device (20) for measuring contrast sensitivity of a user. An image scale setting unit (12) determines the spatial frequency in units of pixels on the basis of an observation distance, physical characteristics of the external display device (20), and visual characteristics of a...