VARIABLE INDICATION ESTIMATOR
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Abstract
A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.
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Citations
29 Claims
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1-20. -20. (canceled)
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21. An apparatus for selecting output parameter values, the apparatus comprising:
a processor configured to; receive an input physiological signal from a sensor coupled with a living being; calculate parameter values from the input physiological signal; select between a first parameter value from a trend of the parameter values and a second parameter value representing a constant average value of the parameter values within a time window, the trend having a non-zero slope in the time window; and output the selected parameter value. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
Specification