Patents by Inventor Ali Bouaricha

Ali Bouaricha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hybrid time and frequency solution for PLL sub-block simulation
    Patent number: 8209154
    Abstract: A system for a fast method to simulate phase lock loop (PLL) sub-block simulation is presented. The simulation of the sub-blocks of the PLL involve solving a system of non-linear equations for the voltages and currents in the sub-blocks of the PLL. A harmonic balance method is used to solve the system of non-linear equation. The harmonic balance method involves creating a system of linear equations which is solved using a novel hybrid time and frequency domain preconditioner. The hybrid time and frequency domain preconditioner includes the strong and fast convergence property of time-domain preconditioning while avoiding the potential divergent problems of time-domain preconditioning. In addition the hybrid time and frequency domain preconditioner also includes the dependable convergence of frequency domain preconditioning while avoiding the potential stalling problems of frequency domain preconditioning.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: June 26, 2012
    Assignee: Synopsys, Inc.
    Inventor: Ali Bouaricha
  • HYBRID TIME AND FREQUENCY SOLUTION FOR PLL SUB-BLOCK SIMULATION
    Publication number: 20090276195
    Abstract: A system for a fast method to simulate phase lock loop (PLL) sub-block simulation is presented. The simulation of the sub-blocks of the PLL involve solving a system of non-linear equations for the voltages and currents in the sub-blocks of the PLL. A harmonic balance method is used to solve the system of non-linear equation. The harmonic balance method involves creating a system of linear equations which is solved using a novel hybrid time and frequency domain preconditioner. The hybrid time and frequency domain preconditioner includes the strong and fast convergence property of time-domain preconditioning while avoiding the potential divergent problems of time-domain preconditioning. In addition the hybrid time and frequency domain preconditioner also includes the dependable convergence of frequency domain preconditioning while avoiding the potential stalling problems of frequency domain preconditioning.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 5, 2009
    Applicant: Synopsys, Inc.
    Inventor: Ali Bouaricha