VARIABLE BANDWIDTH ECG HIGH PASS FILTER

An electrocardiogram high pass filter (25) employs a baseline low pass filter (40), a signal delay (44) and a signal extractor (45). In operation, baseline low pass filter (40) includes a finite impulse response filter (41) and an infinite impulse response low pass filter (42) cooperatively low pass...

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Bibliographische Detailangaben
1. Verfasser:	HERLEIKSON, Earl Clark
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRONIC CIRCUITRY DIAGNOSIS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROTHERAPY HUMAN NECESSITIES HYGIENE IDENTIFICATION IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS MAGNETOTHERAPY MEDICAL OR VETERINARY SCIENCE RADIATION THERAPY RESONATORS SURGERY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION ULTRASOUND THERAPY
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Beschreibung
Zusammenfassung:	An electrocardiogram high pass filter (25) employs a baseline low pass filter (40), a signal delay (44) and a signal extractor (45). In operation, baseline low pass filter (40) includes a finite impulse response filter (41) and an infinite impulse response low pass filter (42) cooperatively low pass filtering a baseline unfiltered electrocardiogram signal (ECGbu) to output a filtered baseline signal (BSEf). Baseline low pass filter (40) further includes a baseline wander estimator (43) dynamically adjusting a corner frequency of baseline low pass filter (40) as a function of an estimation of any baseline wander within the baseline unfiltered electrocardiogram signal (ECGbu). Signal delay (44) time delays the baseline unfiltered electrocardiogram signal (ECGbu) to output a delayed baseline unfiltered electrocardiogram signal (ECGdbu), and signal extractor (45) extracts the filtered baseline signal (BSEf) from the delayed baseline unfiltered electrocardiogram signal (ECGdbu) to output a baseline filtered electrocardiogram signal (ECGbf).