ECG sensing with noise filtering
First Claim
Patent Images
1. An apparatus comprising:
- digitizing circuitry configured and arranged to generate a digitized ECG signal from an analog ECG signal; and
a computing circuit coupled to receive the digitized ECG signal from the digitizing circuitry and configured and arranged to generate a denoised ECG signal from the digitized ECG signal, the denoised ECG signal having, relative to the digitized ECG signal,an improved signal-to-noise ratio of at least 15 dB as measured using the ANSI EC 57 standard, anda quality of signal reconstruction greater than 95%.
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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.
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Citations
19 Claims
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1. An apparatus comprising:
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digitizing circuitry configured and arranged to generate a digitized ECG signal from an analog ECG signal; and a computing circuit coupled to receive the digitized ECG signal from the digitizing circuitry and configured and arranged to generate a denoised ECG signal from the digitized ECG signal, the denoised ECG signal having, relative to the digitized ECG signal, an improved signal-to-noise ratio of at least 15 dB as measured using the ANSI EC 57 standard, and a quality of signal reconstruction greater than 95%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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at least two electrodes configured and arranged to sense an ECG signal; and a computing circuit configured and arranged to generate a denoised ECG signal from the sensed ECG signal having, relative to the sensed ECG signal, an improved signal-to-noise ratio of at least 15 dB as measured using the ANSI EC 57 standard, and a quality of signal reconstruction greater than 95%. - View Dependent Claims (16, 17)
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11. An apparatus comprising:
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an electrode circuit attached to an outer surface of a hand-held device, the electrode circuit configured and arranged to sense heart-related signals upon contact with a surface of a body of a living being and to convert the sensed heart-related signals to ECG electrical signals; and a converter circuit integrated with and electrically connected to the electrode circuit, said converter circuit configured and arranged to receive the ECG electrical signals generated by the electrode circuit and to generate a digitized ECG signal based upon the ECG electrical signals; and a computing circuit communicatively coupled to the converter circuit and configured and arranged to generate a denoised ECG signal from the digitized ECG signal, the denoised ECG signal having, relative to the digitized ECG signal, an improved signal-to-noise ratio of at least 15 dB as measured using the ANSI EC 57 standard, and a quality of signal reconstruction greater than 95%. - View Dependent Claims (12, 13, 14, 15)
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18. An apparatus comprising:
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an electrode circuit attached to an outer surface of a wearable device, the electrode circuit configured and arranged to sense heart-related signals upon contact with a surface of a body of a living being and to convert the sensed heart-related signals to ECG electrical signals; and a converter circuit integrated with and electrically connected to the electrode circuit, said converter circuit configured and arranged to receive the ECG electrical signals generated by the electrode circuit and to generate a digitized ECG signal based upon the ECG electrical signals; and a computing circuit communicatively coupled to the converter circuit and configured and arranged to generate a denoised ECG signal from the digitized ECG signal, the denoised ECG signal having, relative to the digitized ECG signal, an improved signal-to-noise ratio of at least 15 dB as measured using the ANSI EC 57 standard, and a quality of signal reconstruction greater than 95%. - View Dependent Claims (19)
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Specification