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Sleep stage determination apparatus

  • US 20060169282A1
  • Filed: 03/31/2006
  • Published: 08/03/2006
  • Est. Priority Date: 04/01/2005
  • Status: Active Grant
First Claim
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1. A sleep stage determination apparatus comprising:

  • respiratory-signal detection means for detecting a variation of a respiratory signal from the body of a human subject; and

    sleep-stage determination means for determining a plurality of sleep stages using only said respiratory-signal variation.

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