ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,733,837, issued on Sept. 15, was assigned to KONINKLIJKE PHILIPS N.V. (Eindhoven, Netherlands).
"Device and method for determining a respiration rate of a subject" was invented by Salina Marie Huck (Boeblingen, Germany) and Andreas Wolfgang Schlack (Tubingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a device, system and method for determining a respiration rate of a subject. The device presented comprises an input interface for obtaining a red and/or an infrared photoplethysmography, PPG, signal, a feature signal unit configured to extract a first sequence of features from the PPG signal and to generate a ...