Patent ID: 11944459
Assignee: BIOSENSE WEBSTER (ISRAEL) LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A system for estimating residual noise energy of an electrocardiogram (ECG) signal, the system comprising:
a plurality of electrodes configured to measure an electrical signal of a cardiac structure to produce the ECG signal; and
a processor configured to:
determine a segment duration based on a linear trend energy of the ECG signal, wherein the linear trend energy corresponds to an increasing or decreasing slope of the ECG signal;
segment the ECG signal into a plurality of segments in accordance with the determined segment duration;
for each of the plurality of segments:
remove the linear trend energy and direct current (DC) energy from the segment, and calculate an estimated noise energy of the segment;

select a subset of the plurality of segments with a minimum estimated noise energy;
estimate the residual noise energy of the ECG signal by calculating an average of the estimated noise energy over the subset of segments; manage a noise level of the ECG signal using the estimated residual noise energy of the ECG signal; and enable a clinician's ability to diagnose and treat a heart disorder according to the subset of segments.