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Signal processing apparatus and method

  • US 6,826,419 B2
  • Filed: 12/20/2002
  • Issued: 11/30/2004
  • Est. Priority Date: 03/07/1991
  • Status: Expired due to Fees
First Claim
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1. A method for physiological monitoring, comprising:

  • acquiring a first signal comprising a first desired signal component and a first noise component and a second signal comprising a second desired signal component and a second noise component;

    transforming said first and second signals to produce transformed signals wherein at least the first and second desired signal components and the first and second noise components are combined by addition; and

    removing at least a substantial portion of motion-induced noise from the transformed signals.

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