×

Method and apparatus for analyzing and interpreting electrocardiograms using spectro-temporal mapping

  • US 4,947,857 A
  • Filed: 02/01/1989
  • Issued: 08/14/1990
  • Est. Priority Date: 02/01/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. The system for evaluating a electrocardiogram (ECG) of a patient which comprises:

  • means for calculating from the ECG and storing digital data defining a three dimensional graphic surface representative of the spectral frequency of the ECG in which the first axis is the time domain of the ECG, the second axis is the frequency domain, and the third axis is representative of the amplitude or power domain;

    means for displaying the surface in a three dimensional visually discernible presentation; and

    means for producing visually discernible indicia on the surface selected to reveal predetermined characteristics of the HRECG useful in medically evaluating the patient.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×