Patent ID: 7099714
Filing Date: 2006-08-29
Classification: A61B,G06K

Abstract:
1. An implantable medical device comprising: a telemetry unit to receive a signal confirming a patient position; a wavelet transform unit to transform an eleotrogram into a set of wavelets, the electrogram being sensed while the patient is in the confirmed position, the set of wavelets including different subsets of wavelets for different scales; and a wavelet denoising unit to compare first wavelet coefficients of the wavelets in a first subset to a first threshold, compare second wavelet coefficients of the wavelets in a second subset to a second threshold, the second threshold being different than the first threshold, reduce one or more of the first wavelet coefficients that are less than the first threshold, and reduce one or more of the second wavelet coefficients that are less than the second threshold, wherein the first threshold and the second threshold correspond to the patient being in the confirmed position.