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. 08, 2006
Filed:
Aug. 27, 2003
Applicant:
Mitsuo Yasushi, Tsurugashima, JP;
Inventor:
Mitsuo Yasushi, Tsurugashima, JP;
Assignee:
Pioneer Corporation, Tokyo-to, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 23/00 (2006.01); G08B 13/00 (2006.01); A61B 5/02 (2006.01); A61B 5/00 (2006.01); A61B 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fatigue-level estimation apparatus is provided. The apparatus comprises a heat rate calculator and a fatigue level estimator. The heart rate calculator receives a signal indicative of a heartbeat of an object to be estimated to calculate a heart rate signal changing sequentially in time. The fatigue level estimator estimates a fatigue level of the object by detecting a sharp and transient rise in the heartbeat in the heart rate signal. The fatigue-level estimation has less influence resulting from individual differences, while still maintaining high reliability in the estimation.