公开(公告)号：US20250087366A1

公开(公告)日：2025-03-13

申请号：US18824767

申请日：2024-09-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Md Mahbubur Rahman ,  David Lin ,  Li Zhu ,  Viswam Nathan ,  Larry Zhang ,  Ramesh Sah ,  Mehrab Bin Morshed ,  Jungmok Bae ,  Jilong Kuang

IPC: G16H50/30 ,  A61B5/0205 ,  A61B5/024 ,  A61B5/11

Abstract: In one embodiment, a method includes accessing a window of motion data collected by a motion sensor of a device worn by a user and selecting motion data in the window about or more particular axes of the motion sensor. The method further includes determining a ballistocardiogram (BCG) signal in the selected motion data and determining whether the BCG signal in the selected motion data satisfies a signal-quality metric. If the BCG signal in the selected motion data satisfies the signal-quality metric, then the method includes (1) determining one or more heart-beat metrics of the user from the selected motion data; and (2) estimating, based on the one or more determined heart-beat metrics, a stress condition of the user at a time coincident with the window of motion data.