ALEXANDRIA, Va., June 25 -- United States Patent no. 12,336,856, issued on June 24, was assigned to NEC Corp. (Tokyo).
"State estimation apparatus, state estimation method, and computer readable recording medium" was invented by Takayuki Arakawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A state estimation apparatus 1 includes: a generation unit 2 configured to generate acoustic characteristic information indicating an acoustic characteristic using a first acoustic signal output to the ear canal and a second acoustic signal produced by the first acoustic signal echoing inside the body; and an estimation unit 3 configured to estimate the state of the vocal tract and the state of the respiratory tra...