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.:
Date of Patent:
Apr. 02, 2024
Filed:
Jul. 26, 2018
Applicant:
Nitto Denko Corporation, Osaka, JP;
Inventors:
Estanislao Glenn Bondice, Singapore, SG;
Suppasit Chuwatsawat, Singapore, SG;
Wiputpong Klinsukon, Singapore, SG;
Somchai Baotong, Singapore, SG;
Visit Thaveeprungsriporn, Singapore, SG;
Assignee:
Nitto Denko Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/00 (2006.01); A61B 5/024 (2006.01);
U.S. Cl.
CPC ...
A61B 5/02427 (2013.01); A61B 5/02416 (2013.01); A61B 5/7225 (2013.01); A61B 5/725 (2013.01); A61B 2560/0209 (2013.01); A61B 2562/0233 (2013.01);
Abstract
Disclosed is a photoplethysmography (PPG) apparatus () for determining physiological changes, comprising: a light source to emit alight signal having a variable intensity dependent on a skin characteristic; first and second photodetectors () operable to detect a reflection of the light signal to provide a combined current signal; and a signal processing circuit operable to convert the current signal into a PPG signal for determining the physiological changes.