公开(公告)号：US10750960B2

公开(公告)日：2020-08-25

申请号：US15994495

申请日：2018-05-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lifeng Miao ,  Manman Zhang ,  Matthew Wiggins

IPC: A61B5/024 ,  A61B5/00 ,  A61B5/0468 ,  A61B5/046

Abstract: A method for event detection in a user-wearable device includes receiving, from a first sensor implemented in the user-wearable device, photoplethysmogram (PPG) signals; processing, at a processor, the PPG signals to obtain PPG signal samples; detecting, at the processor, beats in the PPG signal samples; dividing the PPG signal samples into PPG signal segments; extracting at least one inter-beat interval (IBI) feature in each PPG signal segment; classifying, at the processor, each PPG signal segment using the extracted IBI feature associated with the PPG signal segment and using a machine learning model; in response to the classifying, generating, at the processor, an event prediction result for the PPG signal segment based on the extracted IBI feature; and displaying the event prediction result at the user-wearable device. In another embodiment, the method further includes extracting morphology based features.

公开(公告)号：US20180279891A1

公开(公告)日：2018-10-04

申请号：US15994495

申请日：2018-05-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lifeng Miao ,  Manman Zhang ,  Matthew Wiggins

IPC: A61B5/024

CPC classification number: A61B5/02416 ,  A61B5/02405 ,  A61B5/02438 ,  A61B5/046 ,  A61B5/0468 ,  A61B5/681 ,  A61B5/6824 ,  A61B5/721 ,  A61B5/725 ,  A61B5/7285 ,  A61B5/74

Abstract: A method for event detection in a user-wearable device includes receiving, from a first sensor implemented in the user-wearable device, photoplethysmogram (PPG) signals; processing, at a processor, the PPG signals to obtain PPG signal samples; detecting, at the processor, beats in the PPG signal samples; dividing the PPG signal samples into PPG signal segments; extracting at least one inter-beat interval (IBI) feature in each PPG signal segment; classifying, at the processor, each PPG signal segment using the extracted IBI feature associated with the PPG signal segment and using a machine learning model; in response to the classifying, generating, at the processor, an event prediction result for the PPG signal segment based on the extracted IBI feature; and displaying the event prediction result at the user-wearable device. In another embodiment, the method further includes extracting morphology based features.