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:
Aug. 03, 2021
Filed:
Dec. 23, 2015
Nitto Denko Corporation, Osaka, JP;
Aye Aung, Singapore, SG;
Kittipong Kasamsook, Singapore, SG;
Visit Thaveeprungsriporn, Singapore, SG;
Pimporn Muaynoi, Singapore, SG;
Abstract
A method () for deriving a mental state of a subject is disclosed. The method comprises receiving () a bio-signal from the subject; calculating respective statistical variations of at least two physiological parameters derived from the bio-signal; determining () an arousal level of the subject based on the calculated statistical variations of the at least two physiological parameters; deriving a time-domain heart rate variability signal from the bio-signal for calculating at least two heart rate variability parameters; determining () a valence level of the subject based on the at least two heart rate variability parameters; and deriving () the mental state from the arousal level and valence level. A related apparatus is also disclosed.