Patent Document ID: 20080243207
Application ID: 11691115
Patent Status: 0

Claim One:
1. An implantable medical device (IMD) comprising: a memory; an analog to digital converter (ADC) configured to receive an analog waveform and sample the waveform into digitized data; a smoothing filter configured to process the sampled signal and classify each data point into a first type or a second type and to apply a smoothing function to the first type of classified data and to retain a sampled valued for the second type of classified data; a predictive encoding module operatively coupled with the ADC to generate an encoded waveform data point for each of an equivalent data point from a subset of the digitized data; and an entropy encoding module operatively coupled with the predictive encoder and configured to selectively replace an encoded waveform data point with a codeword for that data point.