Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics
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United States of America Patent
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Mar 20, 2007
Grant Date -
Sep 8, 2005
app pub date -
Mar 8, 2004
filing date -
Mar 8, 2004
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Abstract
A method and a system for ensemble averaging signals in a pulse oximeter, including receiving first and second electromagnetic radiation signals from a blood perfused tissue portion corresponding to two different wavelengths of light, obtaining an assessment of the signal quality of the electromagnetic signals, selecting weights for an ensemble averager using the assessment of signal quality, and ensemble averaging the electromagnetic signals using the ensemble averager.
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