Please download the dossier by clicking on the dossier button x
×

SYSTEM FOR EXTRACTING RESPIRATORY RATES FROM A PULSE OXIMETER

  • US 20130197383A1
  • Filed: 10/12/2011
  • Published: 08/01/2013
  • Est. Priority Date: 10/12/2010
  • Status: Active Grant
First Claim
Patent Images

1. A method for detecting respiratory rate of a patient, the method comprising the steps of:

  • obtaining parameters for an autoregressive (AR) representation of a photoplethysmography (PPG) signal obtained from the patient, the parameters being obtained using a projection onto linearly independent non-orthogonal bases;

    obtaining poles for a frequency transfer function of the AR representation;

    selecting a pole with a highest magnitude in a frequency region of interest;

    the respiratory rate being determined by the pole with a highest magnitude.

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