US Patent Issued to FITBIT on Nov. 18 for "Multiple source-detector pair photoplethysmography (PPG) sensor" (California Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,471,790, issued on Nov. 18, was assigned to FITBIT LLC (San Francisco).

"Multiple source-detector pair photoplethysmography (PPG) sensor" was invented by Peter Richards (San Francisco), Javier L. Prieto (Oakland, Calif.), Kevin Pu Weekly (Lafayette, Calif.), Christopher Hanrahan Sarantos (San Francisco), Kyle Patrick Nadeau (Los Altos, Calif.), Aniket Sanjay Deshpande (Pleasanton, Calif.), Paul Francis Stetson (Piedmont, Calif.), Vahe Tshitoyan (Pleasanton, Calif.) and Julian Maclaren (Menlo Park, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, devices, and methods for tracking one or more physiological metrics (e.g., heart rate, blood ox...