초록 ▼

A method and apparatus for examining the QRS complex of ECG signals to detect minute late potentials. The system functions to filter the QRS signals bi-directionally, and further separately processes the two filtered signals through selected window functions before summation. The summed signal is th

A method and apparatus for examining the QRS complex of ECG signals to detect minute late potentials. The system functions to filter the QRS signals bi-directionally, and further separately processes the two filtered signals through selected window functions before summation. The summed signal is then passed through a smoothing function to produce an output signal of ideal phase that delineates any late potentials within the QRS complex.

대표청구항 ▼

A method for determining anomalous late potentials in the QRS complex of an electrocardiographic beat signal, comprising: deriving the QRS signal of the beat signal as a series of digital sample values at a selected sample rate; filtering the QRS signal sample values through a digital filter of sele

A method for determining anomalous late potentials in the QRS complex of an electrocardiographic beat signal, comprising: deriving the QRS signal of the beat signal as a series of digital sample values at a selected sample rate; filtering the QRS signal sample values through a digital filter of selected pass band; filtering the QRS signal sample values in reversed time order through a digital filter of said selected pass band; processing each of the filtered QRS signal in accordance with a predetermined window function and summing the resulting signal to produce a QRS summation signal; and smoothing the QRS summation signal to produce a QRS signal replica accentuating the non-random late potential signal components within the QRS low amplitude signal sector.