Method and apparatus for removing artifact and noise from pulse

Details Method and apparatus for removing artifact and noise from pulse Method and apparatus for removing artifact and noise from pulse

1995-06-14

1997-07-08

Cohen, Lee S.

Surgery

Truss

Pad

356 41, A61B 500

Patent

active

056450605

ABSTRACT:
Motion compensation is based on analysis of intensity signals received by detectors, without separately measuring a motion signal, without providing feedback to cancel the motion signal and without attempting to mathematically eliminate the motion signal. Instead, the present invention mathematically recognizes the presence of the motion signal and recognizes a few key characteristics of the motion signal and makes corresponding assumptions. First, it is recognized that the motion
oise in each wavelength signal is proportional. Second, it is assumed that the blood pulse signal is not affected by motion.

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patent: 5351685 (1994-10-01), Potratz
patent: 5368026 (1994-11-01), Swedlow et al.
patent: 5385143 (1995-01-01), Aoyagi
patent: 5482036 (1996-01-01), Diab et al.

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