Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2007-06-05
2007-06-05
Phan, Thai (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C703S013000
Reexamination Certificate
active
10881190
ABSTRACT:
A processing unit of an analysis system comprises a processor coupled to a memory, and is configured to generate a structure-preserving reduced-order model of a circuit, device or system. The reduced-order model in one embodiment is generated by projection of input matrices characterizing the circuit, device or system onto at least one block Krylov subspace, the block Krylov subspace having a corresponding basis matrix. The projection utilizes at least one matrix that has a column range which includes a corresponding portion of the block Krylov subspace but is not itself the basis matrix of the block Krylov subspace. The processing unit generates a frequency response or other signal characterizing the circuit, device or system, based at least in part on the reduced-order model, and an associated output unit presents the generated signal in a user-perceptible format.
REFERENCES:
patent: 5537329 (1996-07-01), Feldmann et al.
patent: 5689685 (1997-11-01), Feldmann et al.
patent: 6023573 (2000-02-01), Bai et al.
patent: 6041170 (2000-03-01), Feldmann et al.
patent: 6801881 (2004-10-01), Shah
patent: 2004/0261042 (2004-12-01), Lee et al.
patent: 2005/0021319 (2005-01-01), Li et al.
A. Odabasioglu et al., “PRIMA: Passive Reduced-Order Interconnect Macromodeling Algorithm,” Tech. Dig. IEEE/ACM International Conference on Computer-Aided Design, pp. 58-65, Los Alamitos, California, 1997.
R.W. Freund, “Passive Reduced-Order Models for Interconnect Simulation and Their Computation Via Krylov-Subspace Algorithms,” Proc. 36thACM/IEEE Design Automation Conference, pp. 195-200, New York, New York, 1999.
R.W. Freund, “Krylov-Subspace Methods for Reduced-Order Modeling in Circuit Simulation,” J. Comput. Appl. Math., 123 (1-2), pp. 395-421, 2000.
T-J. Su et al., “Model Reduction and Control of Flexible Structures Using Krylov Vectors,” J. Guidance, vol. 14, No. 2, pp. 260-267, 1991.
A.E. Ruehli, “Equivalent Circuit Models for Three-Dimensional Multiconductor Systems,” IEEE Transactions on Microwave Theory and Techniques, vol. MTT-22, No. 3, pp. 216-221, Mar. 1974.
Lucent Technologies - Inc.
Phan Thai
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