METHOD FOR DETECTING RESPIRATION SIGNAL FROM PULSE WAVE

摘要

PROBLEM TO BE SOLVED: To establish a method for continuously separating/detecting a respiration signal in real-time for a long period with pulse waves as a signal source since a fluctuation component based on an inspiration/expiration movement is superimposed on the signals of the various pulse waves on an artery with pulsation of the heart.

SOLUTION: The pulse waves measured with various methods are adopted as an input signal source 1. The respiration component of the signal is separated/detected from the pulse waves through a BPF (band-pass filter) 2. The components are amplified by an amplifier 3 so as to be taken out as a normal respiration signal.

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