Patents by Inventor Kenneth Kundert

Kenneth Kundert 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).

  • Patent number: 8195440
    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 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.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: June 5, 2012
    Assignee: Cadence Design Systems, Inc.
    Inventors: Dan Feng, Joel R. Phillips, Kenneth Kundert
  • Publication number: 20090210202
    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 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.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 20, 2009
    Applicant: CADENCE DESIGN SYSTEMS, INC.
    Inventors: Dan Feng, Joel R. Phillips, Kenneth Kundert
  • Patent number: 7493240
    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.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: February 17, 2009
    Assignee: Cadence Design Systems, Inc.
    Inventors: Dan Feng, Joel R. Phillips, Kenneth Kundert
  • Publication number: 20060248518
    Abstract: A method is provided for compiling a model for use in a simulation, the method comprising receiving a description of the model; and automatically converting the description into an implementation of the model that is customized for a selected analysis during simulation.
    Type: Application
    Filed: October 21, 2005
    Publication date: November 2, 2006
    Applicant: Cadence Design Systems, Inc.
    Inventor: Kenneth Kundert