Method and apparatus for enhancing the signal-to-noise ratio of

Details Method and apparatus for enhancing the signal-to-noise ratio of Method and apparatus for enhancing the signal-to-noise ratio of

1994-07-07

1996-10-15

Kamm, William E.

Surgery

Truss

Pad

A61B 50428

Patent

active

055644287

ABSTRACT:
In a method for enhancing the signal-to-noise ratio of ECG signals, A/D-converted signals from a number of cardiac cycles are time-synchronized to form a signal ensemble, and the correlation between the signals in the ensemble is determined in time intervals, comprising at least two samples, during at least a part of the cardiac cycles. A device for enhancing the signal-to-noise ratio of ECG signals, includes circuitry for recording, A/D-converting and other processing of the ECG signals. A synchronization unit is arranged to time-synchronize the signals from a plurality of cardiac cycles to form a signal ensemble, and a calculator unit controlled by a window unit determines the correlation between the signals in the ensemble in time intervals, comprising at least two samples, during at least a part of the cardiac cycles.

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