Patent Document ID: 8195440
Application ID: 12372608
Patent Flag: 1

Claim One:
1. A computer implemented method for simulating responses of an analog circuit using a mixed frequency time method, the circuit receiving a periodic sample signal and at least one information signal, the method comprising: (a) selecting a set of evenly spaced distinct time points; (b) defining a set of reference time points, wherein the set of reference time points is associated with the set of evenly spaced distinct time points; (c) establishing a first set of relationships between values at the set of evenly spaced distinct time points and values at the set of reference time points, wherein the first set of relationships is defined based at least in part upon a multicycle transition function, wherein the first set of relationships comprise a collection of state transition functions for at least the set of evenly spaced distinct time points; (d) establishing a second set of relationships between the values at the set of evenly spaced distinct time points and the values at the set of reference time points, wherein the second set of relationships is defined based at least in part upon a vector of signals at the set of evenly spaced distinct time points, wherein the second set of relationships comprise one or more boundary conditions for determining a solution for the analog circuit; (e) combining the first and the second sets of relationships to establish a system of equations in terms of the values at the set of evenly spaced distinct time points, wherein combining the first and the second sets of relationships comprises combining a first equation from the act of establishing the first set of relationship and a second equation from the act of establishing the second set of relationships to produce a third equation; and (f) using a computer process to find responses of the circuit at the set of evenly spaced distinct time points by solving the system of equations that has been established, as defined by the third equation.