ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,446,847, issued on Oct. 21, was assigned to NEC Corp. (Tokyo).
"Lung sound analysis system" was invented by Masao Higuchi (Tokyo), Mitsuru Noma (Tokyo), Reishi Kondo (Tokyo) and Yumi Arai (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lung sound analysis system includes: an acquisition unit that obtains time-series acoustic signals including lung sounds from a heart failure patient; a determination unit that identifies the pause phase of the patient's breathing; a dividing unit that separates the time-series signals into those during the pause phase and those during other phases, based on the determination; a calculation unit that computes an i...