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:
May. 12, 2009
Filed:
May. 04, 2004
Mohamed K. Diab, Laguna Niguel, CA (US);
Esmaiel Kiani-azarbayjany, Laguna Niguel, CA (US);
Ibrahim M. Elfadel, Laguna Niguel, CA (US);
Rex J. Mccarthy, Mission Viejo, CA (US);
Walter M. Weber, Los Angeles, CA (US);
Robert A. Smith, Corona, CA (US);
Mohamed K. Diab, Laguna Niguel, CA (US);
Esmaiel Kiani-Azarbayjany, Laguna Niguel, CA (US);
Ibrahim M. Elfadel, Laguna Niguel, CA (US);
Rex J. McCarthy, Mission Viejo, CA (US);
Walter M. Weber, Los Angeles, CA (US);
Robert A. Smith, Corona, CA (US);
Masimo Corporation, Irvine, CA (US);
Abstract
The present invention involves method and apparatus for analyzing measured signals that are modeled as containing primary and secondary portions. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodiment, the present invention involves utilizing a transformation which evaluates a plurality of possible signal coefficients in order to find appropriate coefficients. Alternatively, the present invention involves using statistical functions or Fourier transform and windowing techniques to determine the coefficients relating to two measured signals. Use of this invention is described in particular detail with respect to blood oximetry measurements.