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3 results about "Phonocardiograph" patented technology
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A phonocardiogram (or PCG) is a plot of high-fidelity recording of the sounds and murmurs made by the heart with the help of the machine called the phonocardiograph; thus, phonocardiography is the recording of all the sounds made by the heart during a cardiac cycle. .
Apparatus, systems, and methods for cardiac measurements and diagnostics
A cardiac diagnostic apparatus 100 includes a phonocardiography (PCG) sensor 108 for sensing heart sounds and a mechanocardiography (MCG) sensor 109 for sensing heart induced motion, for example due t
Owner:CARDIO-PHOENIX LTD
A method and system for detecting heart sound abnormalities based on earphones
The application discloses a kind of heart sound abnormality detection method and system based on earphone, belong to signal processing technical field.The method includes: obtaining the earphone microphone collected ear sound signal;Based on the physical information neural network constructed in advance, the ear sound signal is calculated inversely;Based on the constructed neural network, the mapping of inverse signal and real heart sound label is completed, and the reconstructed heart sound chart is obtained;Based on the reconstructed heart sound chart, abnormality detection identification is carried out;Physical information neural network includes source pulse wave inversion network HemoNet and source heart sound inversion network CardiNet;HemoNet is obtained in ear drum at arterial pulse pressure wave by ear sound signal inversion, and source pulse wave is obtained at heart;CardiNet is inverted into source heart sound signal at heart by heart sound collected in thoracic cavity;MappingNet generates heart sound signal by source pulse wave signal mapping, and obtains reconstructed heart sound chart.Improve the physical consistency and accuracy of reconstructed signal, realize accurate inversion source pulse wave signal and heart sound reconstruction, improve the convenience and accuracy of heart rate monitoring.
Owner:HUAZHONG UNIV OF SCI & TECH
System and method to determine physiological parameters of a person with the use of heart sound waveforms retrieved using an earpiece device
A system and method for determining heart-related biometric data is presented that includes an earpiece device device to receive audio signals and isolate right and left heartbeat signals from the received audio signals, an extraction module to process the isolated right and left heartbeat signals to generate right and left PCG1, PCG2 signals, a pre-processing module to perform signal processing on the PCG1, PCG2 signals to determine PTT11, PTT12 signals, and a processing module to perform signal processing on the PTT11, PTT12 data signals to provide an indication of heart-related conditions. Furthermore, incorporating morphological detection techniques on the PCG1, PCG2, PTT11, PTT12 signals to generate an MD data signal and incorporating a user-wearable device to generate a third heart-related signal that is further processed to generate PTT2, PTT3 data signals.
Owner:OHMIC TECHNOLOGIES INC