Patent ID: 7336998
Filing Date: 2008-02-26
Classification: A61B,G16H

Abstract:
1. A system comprising: first, second, and third input terminals to receive heart signals from respective external first, second, and third electrodes attached to a subject; at least one pace pulse detector circuit, coupled to the first, second, and third input terminals, to detect from the heart signals first and second pace pulses delivered to differentelectro locations of the heart as electrostimulations for evoking responsive contractions at the different locations of the heart, the pace pulse detector circuit comprising an amplifier circuit to provide polarity information about the first and second pace pulses; and a logic circuit, coupled to the pace pulse detector circuit, configured to assign a first location assignment to the first and a second location assignment to the second pace pulse using at least in part the polarity information about the first and second pace pulses, wherein the first and second location assignments represent the different locations of the heart at which the first and second pace pulses were respectively delivered, and wherein the first and second location assignments discriminate at least between atrial and ventricular locations using the polarity information about the first and second pace pulses.