Method and apparatus for accurately displaying an ECG signal

Details Method and apparatus for accurately displaying an ECG signal Method and apparatus for accurately displaying an ECG signal

1993-03-18

1994-10-25

Kamm, William E.

Surgery

Truss

Pad

A61B 504

Patent

active

053579690

ABSTRACT:
Method and apparatus for removing baseline wander from an ECG signal. The ECG signal is filtered with a high-pass filter having a variable corner frequency. In response to finding low-frequency components in the output of the high-pass filter, its corner frequency is temporarily increased. The corner frequency may decrease according to a decay function or sensing the absence of a low-frequency component in the filter's output. The corner frequency may be decreased in response to sensing ECG activity.

REFERENCES:
patent: 3569852 (1971-03-01), Berkovits
patent: 4381786 (1983-05-01), Duggan
patent: 4408615 (1983-10-01), Grossman
patent: 4494551 (1985-01-01), Little et al.

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