PHYSIOLOGICAL ACOUSTIC MONITORING SYSTEM
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Abstract
An acoustic monitoring system has an acoustic front-end, a first signal path from the acoustic front-end directly to an audio transducer and a second signal path from the acoustic front-end to an acoustic data processor via an analog-to-digital converter. The acoustic front-end receives an acoustic sensor signal responsive to body sounds in a person. The audio transducer provides continuous audio of the body sounds. The acoustic data processor provides audio of the body sounds upon user demand.
157 Citations
21 Claims
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1-7. -7. (canceled)
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8. A method of generating synthetic heart sounds audio responsive to a signal detected by an optical sensor attached to a patient, the method comprising:
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processing, at a patient monitor, a signal from an optical sensor responsive to pulsatile blood flow at a tissue site of the patient; comparing features in the signal with sound signatures corresponding to physiological sounds stored in a first data repository; determining a first plurality of sounds to include a synthetic heart sounds audio based on the comparison of the features in the signal with sound signatures; mixing the first plurality of sounds with white noise; and generating the synthetic heart sound audio based on the mixing of the first plurality of sounds with the white noise. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A system for generating synthetic heart sounds audio responsive to a signal detected by an optical sensor attached to a patient, the system comprising one or more hardware processors configured to:
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process a signal from an optical sensor responsive to pulsatile blood flow at a tissue site of the patient; compare features in the signal with sound signatures corresponding to physiological sounds stored in a first data repository; determine a first plurality of sounds to include a synthetic heart sounds audio based on the comparison of the features in the signal with sound signatures; mix the first plurality of sounds with white noise; and generate the synthetic heart sound audio based on the mixing of the first plurality of sounds with the white noise. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification