公开(公告)号：US20200237312A1

公开(公告)日：2020-07-30

申请号：US16749514

申请日：2020-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ibrahim ABDUL MAJEED ,  Sujit JOS ,  Rahul ARORA ,  Ka Ram CHOI ,  Sang Kon BAE

IPC: A61B5/00 ,  A61B5/024

Abstract: A method and apparatus for pre-processing a photoplethysmogram (PPG) signal include receiving, by an apparatus, the PPG signal including a plurality of pulses, obtaining, by the apparatus, a smoothed PPG signal based on smoothing the PPG signal using a moving average filter, obtaining, by the apparatus, a drift removed PPG signal based on removing drift from the smoothed PPG signal using a fitted polynomial function, and obtaining, by the apparatus, a rectified PPG signal based on correcting a motion artifact of the drift removed PPG signal by replacing each of the plurality of pulses using a combination of a global signal pulse and a corresponding local signal pulse.

公开(公告)号：US20210247304A1

公开(公告)日：2021-08-12

申请号：US17163857

申请日：2021-02-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sujit JOS ,  Kiran BYNAM ,  Ibrahim A ,  Rahul ARORA ,  Gorish AGGARWAL ,  So Young LEE

IPC: G01N21/3577 ,  G06N20/00 ,  G06N5/04 ,  G01N33/49 ,  G01N21/359

Abstract: A method of predicting a blood compound concentration of a target may include receiving, by a system, spectral data associated with a region of the target, using near-infrared (NIR) spectroscopy. The method may include classifying, by the system, each of the plurality of data instances of the spectral data to one of a plurality of labelled classes. The method may include obtaining, by the system, one or more best fit models from a plurality of prediction models based on the classification. The method may include determining, by the system, blood compound concentration values corresponding to each of the one or more best fit models. The method may include predicting, by the system, the blood compound concentration of the target using the blood compound concentration values predicted using the best fit models.

公开(公告)号：US20200323493A1

公开(公告)日：2020-10-15

申请号：US16828364

申请日：2020-03-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Rahul ARORA ,  Sujit JOS ,  Ibrahim ABDUL MAJEED ,  Ka Ram CHOI ,  Sang Kon BAE

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/021 ,  A61B5/145

Abstract: The present disclosure relates to a method and system for processing a photoplethysmogram (PPG) signal to improve accuracy of measurement of physiological parameters of a subject. The method may include removing a baseline drift from the PPG signal; obtaining a drift removed signal; filtering the drift removed signal; obtaining a filtered signal; performing motion artifact correction on the filtered signal; and obtaining a corrected signal.