06081735 is referenced by 834 patents and cites 38 patents.

The present invention involves method and apparatus for analyzing two 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.

Title
Signal processing apparatus
Application Number
132812
Publication Number
6081735
Application Date
July 3, 1997
Publication Date
June 27, 2000
Inventor
Robert A Smith
Corona
CA, US
Walter M Weber
Los Angeles
CA, US
Rex J McCarthy
Mission Viejo
CA, US
Ibrahim M Elfadel
Laguna Niguel
CA, US
Massi E Kiani
Laguna Niguel
CA, US
Mohamed K Diab
Laguna Niguel
CA, US
Agent
Knobbe Martens Olson & Bear
Assignee
Masimo Corporation
CA, US
IPC
A61B 5/00
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