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Method, medium, and apparatus for measuring heart rate

  • US 20050215913A1
  • Filed: 03/23/2005
  • Published: 09/29/2005
  • Est. Priority Date: 03/23/2004
  • Status: Active Grant
First Claim
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1. A heart rate measuring system, comprising:

  • an amplifying unit to receive a light signal reflection of a body and to generate a multi-stage amplified signal made up of a plurality of different corresponding signals with different gains; and

    a processor to separate the multi-stage amplified signal into a plurality of channel signals and to calculate the heart rate from at least one of the channel signals.

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