Method for digitally processing signals containing information regarding arterial blood flow
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United States of America Patent
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Mar 29, 1994
Grant Date -
N/A
app pub date -
Sep 15, 1989
filing date -
Sep 15, 1989
priority date (Note) -
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Abstract
A method for digitally processing signals containing information regarding arterial blood flow in a living body is disclosed enabling a more accurate determination of the oxygen saturation. The method comprises the steps of identifying a first edge based on a first derivation of the signal, disregarding same if it does not fulfill certain criteria, determining a window based on said identified first edge, identifying the second edge falling within said window, disregarding same if it does not fulfill certain criteria, and replacing the second edge by the first before repeated these steps.
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