ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,526, issued on Oct. 7, was assigned to NTT DOCOMO Inc. (Chiyoda-ku, Japan).

"Analysis device" was invented by Hiroto Akatsuka (Chiyoda-ku, Japan) and Masayuki Terada (Chiyoda-ku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An analysis device includes: an estimation unit that obtains a current state variable by state estimation based on a state variable for first sequence data generated by applying a first conversion to observation data, a state space model, and each element included in the first sequence data; an observation unit that generates second sequence data by applying an observation process to the current state variable; an elaborat...