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:
Jun. 02, 2015
Filed:
Feb. 21, 2012
Yusuke Takahashi, Matsumoto, JP;
Yusuke Takahashi, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A pulse detector () includes a pulse wave sensor (); a pulse wave signal filtering section () having a first adaptive filter () and second adaptive filter (), and an adaptive filter switching section (); and a pulse wave frequency analyzer (), wherein the adaptive filter switching section () starts an adaptive processing of the second adaptive filter () at a first time point partway through a second interval in which the first adaptive filter () is continuously carrying out adaptive processing, where the second interval occurs in the first interval, and switches from the first adaptive filter () to the second adaptive filter () at a second time point, which is a time point after the first time point and which is the end point of the second interval.