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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11839485 B1

PDFFull Text
Date of Patent:
Dec. 12, 2023

Filed:

Feb. 28, 2019

Method, computing device and wearable device for sleep stage detection

Applicant:

Nitto Denko Corporation, Osaka, JP;

Inventors:

Maneerat Jiravanichkul, Bangkok, TH;

Thada Jirajaras, Bangkok, TH;

Visit Thaveeprungsriporn, Singapore, SG;

Pannawit Srisukh, Bangkok, TH;

Pongsarun Thiamtawan, Bangkok, TH;

Assignee:

Nitto Denko Corporation;

Attorney:

Lerner David LLP

Primary Examiner:

Eric F Winakur

Assistant Examiner:

Jonathan Drew Moroneso

Int. Cl.
CPC ...
A61B 5/00 (2006.01); G16H 40/67 (2018.01); G16H 50/30 (2018.01); G16H 50/20 (2018.01); G16H 20/10 (2018.01); A61B 5/024 (2006.01);
U.S. Cl.
CPC ...
A61B 5/4812 (2013.01); A61B 5/02405 (2013.01); A61B 5/4848 (2013.01); A61B 5/7221 (2013.01); A61B 5/7267 (2013.01); G16H 20/10 (2018.01); G16H 40/67 (2018.01); G16H 50/20 (2018.01); G16H 50/30 (2018.01);
Abstract

A method of sleep stage detection using vital sign features derived from PPG signals. The method includes performing a logistic regression operation based on a machine learning classifier model to calculate an indication value for an intermediate epoch. The indication value is calculated based on the vital sign features for the intermediate epoch as well as those of the preceding and succeeding epochs. The method then detects the sleep stage of the corresponding intermediate epoch based on the indication value for the corresponding intermediate epoch.

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Jiravanichkul, Maneerat. (2023). Method, computing device and wearable device for sleep stage detection (U.S. Patent No. 11839485). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11839485

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