Signal processing for measurement of physiological analytes

  • US 7,295,867 B2
  • Filed: 02/12/2003
  • Issued: 11/13/2007
  • Est. Priority Date: 05/13/1998
  • Status: Active Grant
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First Claim
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1. One or more microprocessors comprising programming to control operating a sensing device to obtain two or more active signals, wherein (i) said sensing device is in operative contact with an analyte, (ii) said sensing device obtains an active signal from the analyte, and (iii) said active signal is specifically related to analyte amount or concentration present in a biological system;

  • assigning a fractional weight to each of said two or more active signals based on when the respective active signals were generated with respect to one another;

    determining a weighted signal that accounts for the different contributions of each of said two or more active signals and their associated fractional weights; and

    performing a calibration step that converts the weighted signal to a measurement value indicative of the amount or concentration of analyte present in the biological system.

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