Signal processing for continuous analyte sensor

  • US 9,420,965 B2
  • Filed: 07/01/2011
  • Issued: 08/23/2016
  • Est. Priority Date: 12/09/2003
  • Status: Active Grant
First Claim
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1. An analyte monitoring system, the system comprising:

  • an analyte sensor configured to generate a stream of sensor data over a time period;

    a processor module configured to;

    receive the sensor data;

    receive reference data generated by a reference analyte monitor;

    match one or more sensor data points of the sensor data with one or more data points of the reference data;

    calibrate at least some of the sensor data using the matched data;

    determine a first time lag of the calibrated sensor data associated with a first portion of the time period and determine a second time lag of the calibrated sensor data associated with a second, discrete portion of the time period, wherein the first time lag is different than the second time lag; and

    estimate analyte values based on the calibrated sensor data and the first and second time lags; and

    an output module configured to output information representative of the estimated analyte values.

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