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Method and Apparatus for Processing a Pulsatile Biometric Signal

  • US 20090259116A1
  • Filed: 11/14/2008
  • Published: 10/15/2009
  • Est. Priority Date: 11/14/2007
  • Status: Abandoned Application
First Claim
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1. A method for processing a pulsatile signal of light reflected from a living subject, the method comprising:

  • activating a light source to transmit light to the living subject during an accumulation time;

    detecting at least one sample of the light reflected from the living subject using a detector unit;

    determining if the at least one sample of light approaches a saturation level of the detector unit; and

    adjusting the accumulation time to prevent saturation of the detector unit if it has been determined, in the determining step, that the at least one sample of light has approached a saturation level of the detector unit.

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