Patent ID: 7133711

Claim:
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: (a) 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; (b) sensing a light response of the medium and generating said multiple channel signal; and (c) 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 selected from the group consisting of a short serial-parallel mode regime and a mixed-rate short serial mode regime; and the filtering of said multiple channel signal and the separating of said multiple channels from each other both include applying an adaptive resonator bank to said multiple channel signal.