ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,153, issued on Aug. 12, was assigned to Oura Health Oy (Oulu, Finland).
"Low power optical measurements" was invented by Olli Petteri Heikkinen (Oulu, Finland), Mika Petteri Kangas (Oulu, Finland), Jaakko Tapio Vartiainen (Oulu, Finland), Kirsi Marja Maansaari (Oulu, Finland) and Jukka Tapani Makinen (Oulu, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, systems, and devices for adjusting a power output level of a light source on a wearable device are described. A photodetector on the wearable device may measure a first photoplethysmography (PPG) signal derived from an ambient light source that is powered externally to the wearable d...