QRS detector for EKG signals

Details QRS detector for EKG signals QRS detector for EKG signals

1979-01-31

1980-12-09

Kamm, William E.

Surgery

Truss

Pad

A61B 504

Patent

active

042379032

ABSTRACT:
An improves QRS detector is disclosed which utilizes a comparison between the arithmetic mean value of the filtered and full wave rectified EKG signal and such EKG signal reduced by a proportionality factor related to the ratio between the peak and mean value of a full wave rectified sinusoidal wave form. An adaptive threshold circuit is additionally disclosed which serves to increase the threshold value to the amplitude of detected QRS complexes.

REFERENCES:
patent: 3174478 (1965-03-01), Kahn
patent: 3572324 (1971-03-01), Petersen
patent: 3675643 (1972-07-01), Funfstuck et al.
patent: 3750644 (1973-07-01), Ragsdale
patent: 3998214 (1976-12-01), Garrison

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