Patent Document ID: 7783442
Application ID: 11931866
Patent Flag: 1

Claim One:
1. A method for calibrating a characteristic sensor using a characteristic sensor monitor, comprising: receiving a plurality of data values from the characteristic sensor; obtaining a calibration reference value from a separate characteristic measuring device; calculating a parameter of at least one of the plurality of data values; comparing the parameter to a threshold parameter value; calculating a temporally correlated data value, wherein the temporally correlated data value is calculated by: temporally correlating the calibration reference value with one of the plurality of data values using a first time delay, wherein the first time delay is used if the parameter is less than the threshold parameter value; or temporally correlating the calibration reference value with another one of the plurality of data values using a second time delay, wherein the second time delay is used if the parameter is equal to or exceeds the threshold parameter value; calculating a calibration factor based on the calibration reference value and the temporally correlated data value; interpreting the plurality of data values using the calibration factor; and storing the calibration factor on the characteristic sensor monitor, wherein the characteristic sensor is a glucose sensor and the plurality of data values are blood glucose concentrations, wherein the parameter is a rate of change in the blood glucose concentration, and wherein a fast rate of change in the blood glucose concentration exists when the parameter is equal to or exceeds the threshold parameter value, and wherein the receiving a plurality of data values from the characteristic sensor further comprises: sampling characteristic sensor data at a predetermined rate from the characteristic sensor over a period of time; deriving at least two intermediate data values from the sampled characteristic sensor data at a predetermined memory storage rate; and deriving at least one of the plurality of data values at a rate faster than the predetermined memory storage rate by interpolation from the at least two intermediate data values.