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SYSTEMS AND METHODS FOR DETERMINING DIFFERENTIAL PULSE TRANSIT TIME FROM THE PHASE DIFFERENCE OF TWO ANALOG PLETHYSMOGRAPHS

  • US 20130137938A1
  • Filed: 11/30/2011
  • Published: 05/30/2013
  • Est. Priority Date: 11/30/2011
  • Status: Active Grant
First Claim
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1. A method for determining physiological information about a subject, the method comprising:

  • receiving two or more analog physiological signals of a subject;

    processing the analog physiological signals with a phase detector to generate phase information;

    determining using processing equipment information indicative of differential pulse transit time based at least in part on the phase information; and

    determining using processing equipment physiological information about the subject based at least in part on the information indicative of differential pulse transit time.

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