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:
Mar. 01, 2011
Filed:
Apr. 16, 2003
Régis Logier, Marcq-en-Baroeul, FR;
Alain Dassonneville, Houplines, FR;
Régis Logier, Marcq-en-Baroeul, FR;
Alain Dassonneville, Houplines, FR;
Centre Hospitalier Regional Universitaire de Lille, Lille Cedex, FR;
Abstract
The RR series, comprising a number of samples respectively defining the time interval between two successive heartbeats, is filtered by means of a digital band-pass filter (F), having a given band-pass [fc; f'c] and preferably by means of a recursive elective filter (RII). A variability index (I), is calculated which is a function of the instantaneous amplitude [vs(n)] of the discrete signal (S) coming from said band-pass filter. The variability index (I) is preferably a function of and particularly equal to the effective value of the discrete signal (S) from the band-pass filter.