Patent ID: 9585583
Date: 2017-03-07
CPC Classifications: A61B,A61M,A61N

Claim:
1. A method of measuring signals representative of muscle activity, the method comprising: detecting, using a processing circuit, an electrocardiogram (ECG) signal through a plurality of electrodes, wherein the ECG signal comprises a plurality of ECG sample signals, wherein each ECG sample signal is a bipolar signal associated with two of the plurality of electrodes and comprises a cardiac signal component and a myographic signal component representative of muscle contractions relating to the muscle activity; filtering, using the processing circuit, each of the ECG sample signals to remove at least a portion of the cardiac signal component and generate a combined myographic power signal for the two of the plurality of electrodes with which the ECG sample signal is associated, wherein each combined myographic power signal represents a myographic potential between the two electrodes; and calculating, using the processing circuit, individual myographic power signals for each of the plurality of electrodes by applying the combined myographic power signals within a covariance matrix; wherein: