US Patent Issued to Nippon Telegraph and Telephone on July 8 for "Estimation device, estimation method, and estimation program" (Japanese Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,354,047, issued on July 8, was assigned to Nippon Telegraph and Telephone Corp. (Tokyo).

"Estimation device, estimation method, and estimation program" was invented by Jumpei Yamashita (Musashino, Japan), Akira Kataoka (Musashino, Japan) and Hidetaka Koya (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An estimation device includes processing circuitry configured to acquire time-series data of a pupil diameter during work of a subject of work performance estimation, smooth the time-series data of the pupil diameter of the subject by a first time window, smooth the time-series data of the pupil diameter by a second time window that is a t...