Signal processing method, signal processing apparatus, and pulse photometer using the same
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United States of America Patent
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May 7, 2013
Grant Date -
Oct 22, 2009
app pub date -
Apr 21, 2009
filing date -
Apr 22, 2008
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Abstract
A method of processing first and second signals obtained by measuring a medium, to obtain a pulse wave signal and an artifact signal which are separated, includes: separating vectors of the first and second signals by using a separation matrix into a vector of the pulse wave signal and a vector of the artifact signal, the separation matrix including a norm ratio of a stable zone of the pulse wave signal and a compensated norm ratio of an artifact zone.
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