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Method and system for real-time digital filtering for electrophysiological and hemodynamic amplifers

  • US 7,783,339 B2
  • Filed: 08/25/2006
  • Issued: 08/24/2010
  • Est. Priority Date: 05/15/2006
  • Status: Active Grant
First Claim
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1. A method of real-time digital filtering for electrophysiological and hemodynamic amplifiers, the method comprising:

  • inputting a set of digital data from a patient;

    removing a stimulus artifact from the set of digital data when a pacing function is on;

    filtering the set of digital data with a first order high-pass filter and a second order low-pass filter or a special resonator; and

    performing a sample rate conversion and a data scaling on the set of digital data when a notch function is off, wherein the sample rate conversion includes reconstructing the set of digital data from a set of original samples at an original sample rate, and further wherein the reconstructed set of digital data is resampled at an output sampling rate.

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