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Filtering noise from a signal subjected to blanking

  • US 9,375,181 B2
  • Filed: 10/24/2014
  • Issued: 06/28/2016
  • Est. Priority Date: 10/24/2014
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a signal indicative of physiological activity of a patient, wherein the signal comprises noise at one or more frequencies;

    filtering the noise from the signal according to a noise rejection model, wherein the noise rejection model predicts the noise at the one or more frequencies;

    responsive to initiation of a blanking period for the signal, advancing the noise rejection model in time during the blanking period; and

    responsive to termination of the blanking period, filtering, based on the noise rejection model advanced in time, the noise at the one or more frequencies from the signal.

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