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Method and system for decomposition of multiple channel signals

  • US 20040116788A1
  • Filed: 08/07/2003
  • Published: 06/17/2004
  • Est. Priority Date: 08/07/2002
  • Status: Active Grant
First Claim
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1. A method for decomposition of a multiple channel signal reflecting characteristics of a blood perfused fleshy medium for use in determination of at least one desired blood parameter, the method comprising:

  • (i) illuminating a portion of the medium by amplitude-modulated light of more than two different optic channels having wavelength in a range where the scattering properties of blood are sensitive to light radiation;

    (ii) sensing a light response of the medium and generating said multiple channel signal; and

    (iii) analyzing said multiple channel signal, where the analyzing includes;

    (i) filtering said multiple channel signal and separating at least a part of multiple channels from each other; and

    (ii) providing time evolutions of the light responses of the medium for the part of said multiple channels, the method, wherein said amplitude-modulated light is activated in a composite mode regime employing a combination of parallel and serial modes; and

    the filtering of said multiple channel signal and the separating of said multiple channels from each other both includes applying an adaptive resonator bank to said multiple channel signal.

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