ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,550, issued on Sept. 23, was assigned to Egis Technology Inc. (Hsinchu, Taiwan).

"Time-of-flight ranging device and time-of-flight ranging method" was invented by Tung-Yu Wu (Hsinchu, Taiwan), Tang-Hung Po (Hsinchu, Taiwan) and Sheng Wan (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A time-of-flight ranging device and a time-of-flight ranging method are provided. The time-of-flight ranging device includes a light source, a sensing array, and a time-to-digital converter. The light source sequentially emits a plurality of laser pulse signals towards a sensing target. The sensing array senses rays of reflected pulse light generated w...