Heart sound tracking system and method
First Claim
1. A system, comprising:
- an input circuit configured to receive heart sound information; and
a heart sound recognition circuit, coupled to the input circuit, the heart sound recognition circuit configured to recognize, within a particular heart sound of a particular heart sound type, and within 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 heart sound information from at least one other heart sound waveform;
a detection circuit configured to identify a candidate heart sound for the particular heart sound of the particular heart sound type using the heart sound information from the particular heart sound waveform or from the at least one other heart sound waveform; and
a cost analysis circuit configured to calculate a cost for the candidate heart sound, the cost including a jump penalty indicative of a temporal cost associated with the candidate heart sound;
wherein the heart sound recognition circuit is configured to recognize the first intra heart sound energy indication and the corresponding first intra heart sound time indication using the cost.
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Abstract
A system and method provide heart sound tracking, including an input circuit, configured to receive heart sound information, and a heart sound recognition circuit. The heart sound recognition circuit can be coupled to the input circuit and can be 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. The particular heart sound can include at least a portion of one of S1, S2, S3, and S4. Further, the first intra heart sound energy indication and the corresponding first intra heart sound time indication can correspond to the at least a portion of one of S1, S2, S3, and S4, respectively.
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Citations
6 Claims
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1. A system, comprising:
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an input circuit configured to receive heart sound information; and a heart sound recognition circuit, coupled to the input circuit, the heart sound recognition circuit configured to recognize, within a particular heart sound of a particular heart sound type, and within 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 heart sound information from at least one other heart sound waveform; a detection circuit configured to identify a candidate heart sound for the particular heart sound of the particular heart sound type using the heart sound information from the particular heart sound waveform or from the at least one other heart sound waveform; and a cost analysis circuit configured to calculate a cost for the candidate heart sound, the cost including a jump penalty indicative of a temporal cost associated with the candidate heart sound; wherein the heart sound recognition circuit is configured to recognize the first intra heart sound energy indication and the corresponding first intra heart sound time indication using the cost. - View Dependent Claims (2, 3, 4, 5)
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6. A system, comprising:
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an input circuit configured to receive heart sound information; and a heart sound recognition circuit, coupled to the input circuit, the heart sound recognition circuit configured to recognize, within a particular heart sound of a particular heart sound type, and within 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 heart sound information from at least one other heart sound waveform; wherein the particular heart sound of the particular heart sound type includes at least a portion of one of S1, S2, S3, and S4; 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; wherein the heart sound recognition circuit includes a detection circuit configured to detect a first candidate heart sound for the particular heart sound of the particular heart sound type using the heart sound information from the particular heart sound waveform and to detect a second candidate heart sound for the particular heart sound of the particular heart sound type using the heart sound information from the at least one other heart sound waveform; and wherein the heart sound recognition circuit is configured to recognize the first intra heart sound energy indication and the corresponding first intra heart sound time indication using the first candidate heart sound and the second candidate heart sound.
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Specification