Patent ID: 6851097
Filing Date: 2005-02-01
Classification: G06F

Abstract:
1. A method of simulating the operation of a circuit, comprising: providing a simulation model of the circuit; selecting a set of frequency points; simulating the response of the circuit for a subset of the frequency points using the simulation model, said subset comprising a first group and a distinct second group, wherein each frequency point of said first group lies between a pair of frequency points in said second group of frequency points; interpolating the response of the circuit for the first group of frequency points from the simulated values of the second group of frequency points; comparing the simulated response with the interpolated response for the first group of frequency points, wherein if the difference between the simulated value and the interpolated value of a first point in the first group exceeds a bound, an additional frequency point is added to the second group, the additional point lying between the same pair of frequency points in said second group as the first point; iteratively repeating the interpolating and comparing until the difference between the simulated value and the interpolated value of each point in the first group do not exceeds the bound; and determining the response of the circuit for frequency points not in the subset from the interpolated response.