Physiological acoustic monitoring system
First Claim
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1. A method of generating synthetic heart sounds audio responsive to a signal detected by an optical sensor attached to a patient, the method comprising:
- 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;
generating the synthetic heart sound audio based on the mixing of the first plurality of sounds with the white noise; and
transmitting the plurality of digital tags over a network in lieu of the processed signal, thereby reducing bandwidth required for network transmission.
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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.
876 Citations
12 Claims
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1. 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; generating the synthetic heart sound audio based on the mixing of the first plurality of sounds with the white noise; and transmitting the plurality of digital tags over a network in lieu of the processed signal, thereby reducing bandwidth required for network transmission. - View Dependent Claims (2, 3, 4, 5, 6)
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7. 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; generate the synthetic heart sound audio based on the mixing of the first plurality of sounds with the white noise; and transmit the plurality of digital tags over a network in lieu of the processed signal, thereby reducing bandwidth required for network transmission. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification