Delta modulator for measuring voltage levels in a heart pacer

Delta modulator for measuring voltage levels in a heart pacer

A delta modulator for a heart pacer which not only allows sensed signals to be monitored, but also facilitates measurements of DC operating potential levels. The DC levels, and changes in them, can be measured accurately by equilibrating the modulator with the application to it of a suitable referen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAPPHOLZ, TIBOR A, MONEY, DAVID K
Format: Patent
Sprache:eng
Schlagworte:
ELECTROTHERAPY
HUMAN NECESSITIES
HYGIENE
MAGNETOTHERAPY
MEDICAL OR VETERINARY SCIENCE
RADIATION THERAPY
ULTRASOUND THERAPY
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Beschreibung
Zusammenfassung:A delta modulator for a heart pacer which not only allows sensed signals to be monitored, but also facilitates measurements of DC operating potential levels. The DC levels, and changes in them, can be measured accurately by equilibrating the modulator with the application to it of a suitable reference potential as the initial step in a measurement sequence. This same technique allows small signal variations to be tracked even if they are superimposed on large signals.