Patent ID: 6587814
Filing Date: 2003-07-01
Classification: G01R

Abstract:
A method for determining the integrated area QgT of a pulse-like input signal by measuring a step-like output signal provided by a nominally single-pole (N-1P) device in response to said pulse-like input signal, the method comprising:applying a filter set having one or more filters to said N-1P device output; detecting the presence of a step-like feature in said output signal; in response to detecting said feature, capturing a set of correlated multiple output sample values (the area cMOS) from one or more filters in said filter set; and forming a weighted sum of the sample values in said area cMOS to determine said integrated area QgT (the determined area) of said input signal; wherein the weights in said sum (the area weights) are selected to compensate said determined area for errors arising either from the time structure of said pulse-like input, or from deviations in the N-1P device's response from an ideal single-pole response, or from both.