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SIGNAL PROCESSING APPARATUS

  • US 20070249918A1
  • Filed: 06/21/2007
  • Published: 10/25/2007
  • Est. Priority Date: 03/07/1991
  • Status: Active Grant
First Claim
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1. A pulse oximetry system comprising:

  • an optical probe including light emitting elements and a light detecting element, said light detecting element configured to output a signal representative of light attenuated by tissue of a patient, said signal comprising signal portions and noise portions; and

    a patient monitor comprising;

    a sensor port communicating with said optical probe to receive said signal; and

    a signal processor configured to execute a closed loop adaptive process on data responsive to said signal and further configured to determine an indication of a physiological parameter using said adaptively processed signal.

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