公开(公告)号：US20220273183A1

公开(公告)日：2022-09-01

申请号：US17663804

申请日：2022-05-17

Applicant: STMicroelectronics S.r.I.

Inventor： Francesco Rundo ,  Piero Fallica ,  Sabrina Conoci ,  Salvatore Petralia ,  Massimo Cataldo Mazzillo

IPC: A61B5/024 ,  G06K9/00 ,  G16H10/60 ,  G16H50/00 ,  A61B5/00 ,  A61B5/349

Abstract: In an embodiment, PhotoPlethysmoGraphy (PPG) signals are processed by detecting peaks and valleys in the PPG signal, segmenting the PPG signal to provide a time series of PPG waveforms located between two subsequent valleys in the PPG signal, applying to the waveforms in the time series pattern recognition with respect to a reference PPG waveform pattern produced based on a mathematical model of the PPG signal by assigning to the waveforms in the time series a recognition score. A resulting PPG signal is produced by retaining the waveforms in the time series having an assigned recognition score reaching a recognition threshold, and discarding the waveforms in the time series having an assigned recognition score failing to reach the recognition threshold.