ECG sensing with noise filtering
AssigneeVivaQuant LLC
InventorsBrian Brockway, Marina Brockway
Life of this patent
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Abstract
Various embodiments are directed to signal processing. In accordance with example embodiments, methods and apparatuses involve using at least two electrodes that sense an ECG signal. A denoising module is communicatively coupled to the at least two electrodes, and receives the ECG signal sensed by the sensing electrodes. The denoising module includes circuitry that conditions and digitizes the ECG signal, and a computing circuit that processes the digitized ECG signal to denoise the ECG signal. A communications circuit generates a communication including the denoised ECG signal for access by a remote device.
Claims16
An apparatus for wearing on a body of a live being, the apparatus comprising:
- a battery;
- at least two electrodes configured and arranged to sense an ECG signal from the live being;
- a denoising module powered by the battery, communicatively coupled to the at least two electrodes and configured and arranged to receive the ECG signal sensed by the sensing electrodes, the denoising module including
- circuitry configured and arranged to digitize the ECG signal, and
- a computing circuit configured and arranged to process said digitized ECG signal to
- denoise the digitized ECG signal by increasing a signal-to-noise ratio in the ECG signal by at least 15 dB, and
- reconstruct the ECG signal with a quality of signal reconstruction of at least 95%;
- and
- a communications circuit powered by the battery and configured and arranged to generate a communication including the reconstructed ECG signal for access by a device remote from the communications circuit.
An apparatus comprising:
- at least two electrodes configured and arranged to sense an ECG signal;
- a denoising module communicatively coupled to the at least two electrodes and configured and arranged to receive the ECG signal sensed by the sensing electrodes, the denoising module including
- circuitry configured and arranged to condition and digitize the ECG signal, and
- a computing circuit configured and arranged to denoise process said digitized ECG signal by
- decomposing the digitized ECG signal from a first domain into subcomponents in a second domain,
- identifying subcomponents that are associated with noise based upon a spatial distribution of the subcomponents, and
- constructing a denoised physiological signal in the first domain from at least two of the subcomponents that have not been identified as being associated with noise;
- and
- a communications circuit configured and arranged to generate a communication including the denoised ECG signal for access by a device remote from the communications circuit.
Dependencies are inferred from the claim text.