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Multi-stream sensor front ends for noninvasive measurement of blood constituents

  • US 8,909,310 B2
  • Filed: 01/13/2014
  • Issued: 12/09/2014
  • Est. Priority Date: 08/04/2008
  • Status: Active Grant
First Claim
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1. A front-end interface for a noninvasive, physiological sensor, said front-end interface comprising:

  • a set of inputs configured to receive signals from a plurality of detectors in the sensor;

    a set of switched capacitor circuits configured to convert the signals from the plurality of detectors into a digital output signal having a stream for each of the plurality of detectors; and

    an output configured to provide the digital output signal.

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