Patent ID: 8603007

Claim:
A method for estimating respiratory airflow on a respiratory monitoring device, comprising the steps of: receiving on the respiratory monitoring device body sound signal data from a first source and respiratory airflow data from a second source; generating on the respiratory monitoring device time-aligned data points from the body sound signal data and the respiratory airflow data; assigning on the respiratory monitoring device each of the time-aligned data points to one of a plurality of bins each spanning a discrete body sound signal range; calculating on the respiratory monitoring device without invoking best fit analysis respiratory airflow estimation data for each bin using the time-aligned data points assigned to that bin; populating on the respiratory monitoring device a lookup table with an entry for each bin associating the discrete body sound signal range for that bin and the estimation data for that bin; acquiring on the respiratory monitoring device additional body sound signal data; retrieving on the respiratory monitoring device from the lookup table estimation data corresponding to the additional body sound signal data; and outputting on the respiratory monitoring device respiratory airflow output data based on the estimation data.