公开(公告)号：US20220369992A1

公开(公告)日：2022-11-24

申请号：US17564198

申请日：2021-12-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Li Zhu ,  Hanbin Zhang ,  Viswam Nathan ,  Jilong Kuang ,  Jun Gao

IPC: A61B5/361 ,  G16H40/63 ,  G16H50/30 ,  A61B5/00

Abstract: Energy-efficient monitoring and detection of atrial fibrillation using an electronic device can include scheduling, by the electronic device, monitoring periods during which the electronic device intermittently monitors a user of the electronic device for atrial fibrillation. The scheduling can be based on determining an AF risk specific to the user. Time intervals between successive AF monitoring periods can be modulated by the electronic device in response to detecting a change in the AF risk.

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.

公开(公告)号：US20240420290A1

公开(公告)日：2024-12-19

申请号：US18677228

申请日：2024-05-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Korosh Vatanparvar ,  Jeremy Speth ,  Jicheng Li ,  Li Zhu ,  Nafiul Rashid ,  Migyeong Gwak ,  Jilong Kuang ,  Jun Gao

IPC: G06T5/70 ,  A61B5/00 ,  A61B5/0205 ,  A61B5/024 ,  A61B5/11 ,  G06T5/20 ,  G06T5/60 ,  G06T7/00 ,  G06T7/246 ,  G06T7/73 ,  G06V10/776 ,  G06V40/16

Abstract: In one embodiment, a method includes accessing a video of a user's face. The method further includes accessing, for each image frame in the video, (1) one or more facial landmarks determined by a facial landmark detection (FLD) model and (2) a corresponding determined position in the image for each facial landmark. The method further includes determining, based on the one or more facial landmarks and corresponding positions, a motion of the user's face in the captured video; extracting, from the determined motion of the user's face, a corrected motion signal of the user's face; adjusting, based on the extracted corrected motion signal of the user's face, the positions of one or more facial landmarks in the image frames; and determining, based at least in part on the adjusted positions of the facial landmarks in the sequential images of the video, one or more vital signs of the user.

公开(公告)号：US11911165B2

公开(公告)日：2024-02-27

申请号：US17115561

申请日：2020-12-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Viswam Nathan ,  Li Zhu ,  Md Mahbubur Rahman ,  Jilong Kuang ,  Jun Gao

IPC: A61B5/361 ,  G16H50/30 ,  G16H50/70 ,  G16H10/60 ,  A61B5/00 ,  A61B5/11 ,  G16H40/67 ,  G16H50/50 ,  A61B5/339 ,  G16H20/30

CPC classification number: A61B5/361 ,  A61B5/1118 ,  A61B5/339 ,  A61B5/486 ,  A61B5/6898 ,  G16H10/60 ,  G16H20/30 ,  G16H40/67 ,  G16H50/30 ,  G16H50/50 ,  G16H50/70

Abstract: A method includes estimating, by a consumer electronic device, an atrial fibrillation (AF) burden of a subject based on multiple measurements passively collected by at least one sensor associated with the consumer electronic device while the subject is in a free-living environment. The method also includes outputting, by the consumer electronic device, an AF burden notification associated with the subject based on the estimated AF burden. The method further includes outputting, by the consumer electronic device, an AF burden recommendation based on the estimated AF burden.

公开(公告)号：US20240016424A1

公开(公告)日：2024-01-18

申请号：US18213461

申请日：2023-06-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Li Zhu ,  Korosh Vatanparvar ,  Michael Chan ,  Migyeong Gwak ,  Jungmok Bae ,  Jilong Kuang ,  Jun Gao

IPC: A61B5/1455

CPC classification number: A61B5/14552

Abstract: In one embodiment, a method includes accessing a sequence of images of a portion of a person's skin illuminated by ambient light and determining, from at least one of the images, a plurality of microregions in the portion of the person's skin. The method further includes determining, based on a similarity between particular microregions of the plurality of microregions, one or more regions of interest of the person's skin; determining, for each of the regions of interest, a remote photoplethysmogram (rPPG) signal based on the sequence of images; and determining, based on one or more of the rPPG signals, an estimate of an oxygen saturation in the person's blood.