公开(公告)号：CA2199016C

公开(公告)日：2002-01-01

申请号：CA2199016

申请日：1995-10-10

Applicant: MASIMO CORP

Inventor： WEBER WALTER MICHAEL ,  MCCARTHY REX JOHN ,  ELFADEL IBRAHIM ,  DIAB MOHAMED KHEIR ,  SMITH ROBERT A ,  KIANI-AZARBAYJANY ESMAIEL

IPC: A61B5/0245 ,  A61B5/00 ,  A61B5/02 ,  A61B5/0215 ,  A61B5/145 ,  A61B5/1455 ,  A61B5/1464 ,  A61B6/00 ,  A61B8/00 ,  G06F17/00 ,  G06F19/00 ,  H04B1/12 ,  H04B3/46 ,  H04B17/00 ,  G06F17/14

Abstract: The present invention involves method and apparatus for analyzing two measur ed signals acquired by a detector (20) that are modeled as containing primary a nd 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 statistica l 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.

公开(公告)号：CA2199016A1

公开(公告)日：1996-05-02

申请号：CA2199016

申请日：1995-10-10

Applicant: MASIMO CORP

Inventor： DIAB MOHAMED KHEIR ,  KIANI-AZARBAYJANY ESMAIEL ,  ELFADEL IBRAHIM ,  MCCARTHY REX JOHN ,  WEBER WALTER MICHAEL ,  SMITH ROBERT A

IPC: A61B5/0245 ,  A61B5/00 ,  A61B5/02 ,  A61B5/0215 ,  A61B5/145 ,  A61B5/1455 ,  A61B5/1464 ,  A61B6/00 ,  A61B8/00 ,  G06F17/00 ,  G06F19/00 ,  H04B1/12 ,  H04B3/46 ,  H04B17/00 ,  G06F17/14

Abstract: The present invention involves method and apparatus for analyzing two measur ed signals acquired by a detector (20) that are modeled as containing primary a nd 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 statistica l 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.