US Patent Issued to Lepu Medical Technology (Beijing) on May 20 for "Method and device for generating photoplethysmography signals" (Chinese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,232, issued on May 20, was assigned to Lepu Medical Technology (Beijing) Co. Ltd (Beijing).

"Method and device for generating photoplethysmography signals" was invented by Zejian Wu (Shanghai) and Jun Cao (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for generating PPG signals may include sequentially performing single-frame red and green channel data calculation on all skin surface video data frame images of a frame image sequence of skin surface video data according to preset red and green light pixel threshold ranges to generate first red and green light signals; performing signal band-pass filtering preprocessing on the first ...