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US 12,458,268 B2Granted
Bio-signal detection
AssigneeNokia Technologies Oy
InventorsAntti Salo, Kim Blomqvist
Life of this patent
Estimating the term…
Abstract
An apparatus comprising: a displacement current sensor configured to measure for a subject one or more sensed electrical signals; and circuitry configured to process the one or more sensed electrical signals to obtain an electrocardiogram signal and a variable impedance signal caused by an arterial pulse wave.
Claims6
An apparatus comprising:
- a displacement current sensor configured to measure for a subject one or more sensed electrical signals, wherein the displacement current sensor comprises at least one electrode;
- and
- circuitry configured to process the one or more sensed electrical signals from the displacement current sensor to obtain an electrocardiogram (ECG) signal and a variable impedance signal caused by an arterial pulse wave, wherein the circuitry configured to process the one or more sensed electrical signals to obtain the electrocardiogram signal and the variable impedance signal caused by the arterial pulse wave is configured to measure the variable impedance signal caused by the arterial pulse wave as a modulation of the ECG signal.
Dependencies are inferred from the claim text.