Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2000-05-15
2009-02-17
Rodriguez, Paul L (Department: 2123)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C703S014000, C703S007000, C716S030000, C716S030000, C716S030000
Reexamination Certificate
active
07493240
ABSTRACT:
Described is a process for performing an improved mixed frequency-time algorithm to simulate responses of a circuit that receives a periodic sample signal and at least one information signal. The process selects a set of evenly spaced distinct time points and a set of reference time points. Each of the reference points is associated with a distinct time point, and a reference time point is a signal period away from its respective distinct time point. The process finds a first set of relationships between the values at the distinct time points and the values at the reference time points. The process also finds a second set of relationships between the values at the distinct time points and the values at the reference time points. The process then combines the first and second sets of relationships to establish a system of nonlinear equations in terms of the values at the distinct time points only. By solving the system of nonlinear equations, the process finds simulated responses of the circuit in time domain. The process then converts the simulated circuit responses from time domain to frequency domain.
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Feng Dan
Kundert Kenneth
Phillips Joel R.
Cadence Design Systems Inc.
Rodriguez Paul L
Thangavelu Kandasamy
Vista IP Law Group LLP
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