ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,557,998, issued on Feb. 24, was assigned to Neteera Technologies LTD. (Jerusalem).

"Derivation of heartbeat interval from reflection signal" was invented by Reinier Doelman (Jerusalem) and Ehud Fishler (Shoham, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "Method and system for deriving interbeat interval (IB1) measurement of subject. A radar device receives a reflection radar signal reflected from subject. A signal portion of reflection radar signal at a range of subject is extracted, the signal portion collected over predefined intervals and consisting of an in-phase component and a quadrature component. The signal portion is filtered by apply...