Patent ID: 7853327
Filing Date: 2010-12-14
Classification: A61B,A61N

Abstract:
1. A system, comprising: an input circuit, configured to receive heart sound information; a heart sound recognition circuit, coupled to the input circuit, configured to recognize, within a particular heart sound of a particular heart sound waveform, a first intra heart sound energy indication and a corresponding first intra heart sound time indication using the heart sound information from the particular heart sound waveform and the heart sound information from at least one other heart sound waveform; wherein the particular heart sound of the particular heart sound waveform includes an ensemble averaged heart sound over multiple physiological cycles; wherein the particular heart sound includes at least a portion of one of S1, S2, S3, and S4; and wherein the first intra heart sound energy indication and the corresponding first intra heart sound time indication corresponds to the at least a portion of one of S1, S2, S3, and S4, respectively.