Methods and systems for real time breath rate determination with limited processor resources
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United States of America Patent
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Issued Date -
Aug 10, 2006
app pub date -
Nov 21, 2005
filing date -
Nov 19, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for recognizing occurrences of breaths in respiratory signals. The method includes receiving digitized respiratory signals that includes tidal volume signals, filtering the received respiratory signals to limit artifacts having a duration less than a selected duration, and recognizing breaths in the filtered respiratory signals. A breath is recognized when amplitude deviations in filtered tidal volume signals exceed a selected fraction of an average of previously determined breaths. This invention also include methods for recognizing breathes from electrocardiogram R-waves; computer methods having code for performing the methods of this invention; monitoring systems that monitor a subject and include local or remote computers or other devices that perform the methods of this invention.
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