Patent ID: 8078272
Filing Date: 2011-12-13
Classification: A61B,A61N

Abstract:
1. A system comprising: a signal detector, comprising a detector input and comprising a detector output providing a physiologic sampled signal; and a signal processor circuit, coupled to the detector output, the signal processor circuit configured to distinguish, using a peak sample, a preceding sample to the peak sample, and a subsequent sample to the peak sample, a signal depolarization or repolarization from noise, and in which the signal processor circuit is configured to form a weighted average computed using as data points an amplitude of the peak sample from a baseline, an amplitude of the preceding sample from the same baseline, and an amplitude of the subsequent sample from the same baseline, wherein the preceding sample and the subsequent sample are specified adjustably according to a sample rate, and to distinguish a signal depolarization or repolarization from noise by comparing the weighted average to a specified threshold value.