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公开(公告)号：US20240169208A1
公开(公告)日：2024-05-23
申请号：US18515872
申请日：2023-11-21
Inventor： Seong Whan LEE , Heon Gyu KWAK , Young Seok KWEON , Gi Hwan SHIN , Ha Na JO
IPC: G06N3/0895 , G06N3/045 , G16H50/20 , G16H50/30
CPC classification number: G06N3/0895 , G06N3/045 , G16H50/20 , G16H50/30
Abstract: An automatic sleep stage classification system for reducing the variation in performance between users using a contrastive learning method according to one embodiment of the present invention includes: a user terminal that measures a user's biosignal and preprocesses the user's measured biosignal; and a classification server that receives the user's preprocessed biosignal from the user terminal, extracts the user's unique biosignal feature, extracts a similar feature by comparing the user's extracted unique biosignal feature and the user's biosignal feature for contrastive learning, and classifies sleep stages based on the extracted similar feature, wherein the user's biosignal includes at least one of the user's electroencephalography (EEG), electrooculography (EOG), electrocardiogramalectromyography (EMG), respiratory effort signals, pulse, oxygen saturation (SpO2), and blood flow.
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公开(公告)号：US20240169851A1
公开(公告)日：2024-05-23
申请号：US18515941
申请日：2023-11-21
Inventor： Seong Whan LEE , Gi Hwan SHIN , Young Seok KWEON , Heon Gyu KWAK , Ha Na JO
CPC classification number: G09B5/02 , A61B5/374 , A61B5/6803
Abstract: Disclosed is an apparatus for memory enhancement based on electroencephalogram according to one embodiment of the present invention. According to the present invention, it is possible to identify forgotten items during retrieval in a re-learning process based on a user's brain signals measured in an initial learning process by means of a brain signal measurement unit capable of measuring brain signals, and provide the user with repetitive learning depending on the user's electrophysiological characteristics, resulting in a more effective enhancement of memory.
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