公开(公告)号：US20250082277A1

公开(公告)日：2025-03-13

申请号：US18802677

申请日：2024-08-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Viswam NATHAN ,  Larry ZHANG ,  Md Mahbubur RAHMAN ,  Jilong KUANG ,  Jungmok BAE ,  Jun GAO

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/0295 ,  A61B5/16

Abstract: A computer-implemented method includes: receiving, from a sensor of an electronic device, a photoplethysmography (PPG) signal about a user; dividing the received PPG signal into a first set of waveforms; checking qualities of the first set of waveforms and generating a second set of waveforms based on the checked qualities of the first set of waveforms; extracting a plurality of morphological features of each waveform of the second set of waveforms and calculating a plurality of time/amplitude factors based on the extracted plurality of morphological features; estimating, using an artificial intelligence model, a stress level of the user, based on the calculated plurality of time/amplitude factors; and providing the estimated stress level to the user.