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Adaptive line noise canceler and detector for ECG signals

  • US 6,041,250 A
  • Filed: 05/20/1998
  • Issued: 03/21/2000
  • Est. Priority Date: 05/21/1997
  • Status: Expired due to Term
First Claim
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1. A device for detecting and removing noise from an ECG signal comprising:

  • an ECG signal input for receiving an ECG signal from a patient;

    an ECG gate signal which has a portion of said ECG signal blanked from a point in time just prior to the onset of the QRS portion of said ECG signal and ending at a point in time just after the end of the QRS portion; and

    an adaptive line noise canceler for removing line noise from said ECG signal wherein said adaptive line noise canceler receives said ECG signal and said ECG gate signal adjusts to changes in said ECG signal from said ECG input to remove varying amounts of said line noise from said ECG signal.

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