07003338 is referenced by 437 patents and cites 104 patents.

A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal in to separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, the signal processor separates the composite signal by applying a first demodulation signal to the composite signal to generate a first output signal. In one embodiment, the signal processor also applies a second demodulation signal to the composite signal to generate a second output signal. In one embodiment, a phase and/or amplitude of the first demodulation signal and a phase and/or amplitude of the second demodulation signal are selected to reduce crosstalk. In one embodiment, the composite signal is obtained from a detector in a system for measuring one or more blood constituents.

Title
Method and apparatus for reducing coupling between signals
Application Number
10/615333
Publication Number
7003338 (B2)
Application Date
July 8, 2003
Publication Date
February 21, 2006
Inventor
Ammar Al Ali
Costa Mesa
CA, US
Walter M Weber
Laguna Hills
CA, US
Agent
Knobbe Martens Olson & Bear
Assignee
Masimo Corporation
CA, US
IPC
A61B 5/00
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