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Cardiac sonospectrographic analyzer

  • US 6,053,872 A
  • Filed: 07/09/1997
  • Issued: 04/25/2000
  • Est. Priority Date: 12/18/1996
  • Status: Expired due to Term
First Claim
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1. A method of detecting cardiovascular disease or disorder comprising:

  • performing initialization procedures;

    filtering physiologic acoustic signals, using a filter having a logarithmic characteristic, creating filtered physiologic acoustic signals;

    acquiring said filtered physiologic acoustic signals;

    acquiring background acoustic signals;

    subtracting said background acoustic signals from said filtered physiologic acoustic signals, creating physiologic data;

    processing the physiologic data, forming a time domain output and a frequency domain output;

    comparing the time domain output and the frequency domain output with a reference pattern and feature library; and

    determining if a disease modality is indicated.

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