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Delta-sigma modulator for outputting analog representation of physiological signal

  • US 20050187453A1
  • Filed: 02/25/2004
  • Published: 08/25/2005
  • Est. Priority Date: 02/25/2004
  • Status: Active Grant
First Claim
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1. A method for operating an physiological monitor comprising:

  • detecting a signal from a patient including a physiological waveform;

    converting said waveform into digital form;

    applying said waveform to a delta-sigma modulator; and

    filtering said waveform to provide an analog waveform output.

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