×

System and method for facilitating reflectometric detection of physiologic activity

  • US 9,492,099 B2
  • Filed: 03/14/2013
  • Issued: 11/15/2016
  • Est. Priority Date: 03/19/2012
  • Status: Active Grant
First Claim
Patent Images

1. A method for remotely sensing cardiac-related data of an animal subject, the method comprising:

  • transmitting a radio frequency signal to impinge on tissue of the subject;

    receiving a reflected radio frequency signal, the reflected radio frequency signal comprising a reflection of the radio frequency signal impinged on the tissue of the subject;

    generating baseband data utilizing the reflected radio frequency signal;

    filtering multiple parallel streams of data embodying or derived from the baseband data to yield initially filtered data including a plurality of initially filtered data sets, wherein each initially filtered data set is obtained by filtering a stream of data of the multiple parallel streams of data with a different filtering scheme, and each filtering scheme includes high-pass filtering with a cutoff frequency of 10 Hz or greater;

    performing waveform phase position determination on data embodying or derived from the initially filtered data to yield waveform phase position determined data;

    performing at least one auto-correlation of the waveform phase position determined data to yield auto-correlated data;

    determining periodicity of data embodying or derived from the auto-correlated data, wherein said determining of periodicity comprises determining a plurality of periodicity values; and

    computing heart rate including selecting a majority or median of the plurality of periodicity values.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×