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:
Jul. 02, 2013
Filed:
Jul. 30, 2009
Braddon M. Van Slyke, Arvada, CO (US);
Paul Stanley Addison, Edinburgh, GB;
James Nicholas Watson, Dunfermline, GB;
Scott Mcgonigle, Edinburgh, GB;
Braddon M. Van Slyke, Arvada, CO (US);
Paul Stanley Addison, Edinburgh, GB;
James Nicholas Watson, Dunfermline, GB;
Scott McGonigle, Edinburgh, GB;
Nellcor Puritan Bennett Ireland, Mervue, Galway, IE;
Abstract
According to embodiments, a pulse band region is identified in a wavelet scalogram of a physiological signal (e.g., a plethysmograph or photoplethysmograph signal). Components of the scalogram at scales larger than the identified pulse band region are then used to determine a baseline signal in wavelet space. The baseline signal may then be used to normalize the physiological signal. Physiological information may be determined from the normalized signal. For example, oxygen saturation may be determined using a ratio of ratios or any other suitable technique.