Patent ID: 6237118
Filing Date: 2001-05-22
Classification: G01R

Abstract:
A method of handling measurement inaccuracies, comprising:taking a set of voltage measurements on a first set of nodes of a circuit;calculating a set of minimum deltas wherein there is a first minimum for each member of said set of voltage measurements;calculating a set of maximum deltas wherein there is a first maximum for each member of said set of voltage measurements;calculating a set of minimum-result deltas wherein said set of minimum-result deltas is calculated by minimizing the result of a matrix multiplication of said set of minimum-result deltas by a rotation matrix subject to each element of said set of minimum-result deltas being between minimums and maximums obtained from said set of minimum deltas and said set of maximum deltas;calculating a set of maximum-result deltas wherein said set of maximum-result deltas is calculated by maximizing the result of a matrix multiplication of said set of maximum-result deltas by a rotation matrix subject to each element of said set of maximum-result deltas being between minimums and maximums obtained from said set of minimum deltas and said set of maximum deltas;comparing each element of said set of minimum-result deltas to an individual element of a set of maximums to determine if a first group of components has at least one component that is outside a predefined test limit; andcomparing each elements of said set of set of maximum-result deltas to an individual element of a set of minimums to determine if said first group of components has at least one component that is outside said predefined test limit.