Patents by Inventor Kenneth S. Kundert
Kenneth S. 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).
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Patent number: 8775149Abstract: A method and mechanism for implementing a general purpose scripting language that supports parallel execution is described. In one approach, parallel execution is provided in a seamless and high-level approach rather than requiring or expecting a user to have low-level programming expertise with parallel processing languages/functions. Also described is a system and method for performing circuit simulation. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked.Type: GrantFiled: June 15, 2012Date of Patent: July 8, 2014Assignee: Cadence Design Systems, Inc.Inventor: Kenneth S. Kundert
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Patent number: 8762123Abstract: A system and method for performing circuit simulation is described. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked. Mechanisms are provided that allow for viewing, measurement or other manipulation of signals at specific locations in a circuit design for simulation, such as parameters that include observation points which are implemented using probes. One approach to executing a measurement is via a controllable and flexible control statement, which in one embodiment is the “run” statement. Improved interfaces for viewing, controlling, and manipulating simulations and simulation results are also provided.Type: GrantFiled: October 28, 2010Date of Patent: June 24, 2014Assignee: Cadence Design Systems, Inc.Inventor: Kenneth S. Kundert
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Patent number: 8738348Abstract: A method and mechanism for implementing a general purpose scripting language that supports parallel execution is described. In one approach, parallel execution is provided in a seamless and high-level approach rather than requiring or expecting a user to have low-level programming expertise with parallel processing languages/functions. Also described is a system and method for performing circuit simulation. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked.Type: GrantFiled: June 15, 2012Date of Patent: May 27, 2014Assignee: Cadence Design Systems, Inc.Inventor: Kenneth S. Kundert
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Publication number: 20120316858Abstract: A method and mechanism for implementing a general purpose scripting language that supports parallel execution is described. In one approach, parallel execution is provided in a seamless and high-level approach rather than requiring or expecting a user to have low-level programming expertise with parallel processing languages/functions. Also described is a system and method for performing circuit simulation. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked.Type: ApplicationFiled: June 15, 2012Publication date: December 13, 2012Applicant: CADENCE DESIGN SYSTEMS, INC.Inventor: Kenneth S. Kundert
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Patent number: 8325188Abstract: Systems and methods for storing waveform data and outputting data to a waveform viewer are disclosed. A waveform is segmented into a plurality of segments, and data describing each segment is stored at several levels of resolution. When a user wishes to view a portion of the waveform, the appropriate segments of the waveform are identified, and the appropriate levels of resolution are selected. The data describing the appropriate segments at the appropriate levels of resolution are output to a waveform viewer. An index may be provided to aid in selection of the appropriate data. Various methods for compression of the data are also supported.Type: GrantFiled: July 21, 2006Date of Patent: December 4, 2012Assignee: Cadence Design Systems, Inc.Inventors: Joel R. Phillips, Sherry Solden, Henry C. Chang, Kenneth S. Kundert, Ted Vucurevich
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Publication number: 20120253732Abstract: A method and mechanism for implementing a general purpose scripting language that supports parallel execution is described. In one approach, parallel execution is provided in a seamless and high-level approach rather than requiring or expecting a user to have low-level programming expertise with parallel processing languages/functions. Also described is a system and method for performing circuit simulation. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked.Type: ApplicationFiled: June 15, 2012Publication date: October 4, 2012Applicant: CADENCE DESIGN SYSTEMS, INC.Inventor: Kenneth S. Kundert
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Patent number: 8224636Abstract: A method and mechanism for implementing a general purpose scripting language that supports parallel execution is described. In one approach, parallel execution is provided in a seamless and high-level approach rather than requiring or expecting a user to have low-level programming expertise with parallel processing languages/functions. Also described is a system and method for performing circuit simulation. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked.Type: GrantFiled: December 17, 2003Date of Patent: July 17, 2012Assignee: Cadence Design Systems, Inc.Inventor: Kenneth S. Kundert
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Publication number: 20120038648Abstract: A system and method for performing circuit simulation is described. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked. Mechanisms are provided that allow for viewing, measurement or other manipulation of signals at specific locations in a circuit design for simulation, such as parameters that include observation points which are implemented using probes. One approach to executing a measurement is via a controllable and flexible control statement, which in one embodiment is the “run” statement. Improved interfaces for viewing, controlling, and manipulating simulations and simulation results are also provided.Type: ApplicationFiled: October 25, 2010Publication date: February 16, 2012Inventor: Kenneth S. Kundert
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Publication number: 20110270556Abstract: A system and method for performing circuit simulation is described. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked. Mechanisms are provided that allow for viewing, measurement or other manipulation of signals at specific locations in a circuit design for simulation, such as parameters that include observation points which are implemented using probes. One approach to executing a measurement is via a controllable and flexible control statement, which in one embodiment is the “run” statement. Improved interfaces for viewing, controlling, and manipulating simulations and simulation results are also provided.Type: ApplicationFiled: October 28, 2010Publication date: November 3, 2011Applicant: CADENCE DESIGN SYSTEMS, INC.Inventor: Kenneth S. Kundert
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Publication number: 20110153305Abstract: An extension to a simulator (801) that allows the user to specify real numbers, voltages, and currents (808) on ports of an electrical net is presented. The computer using the analog wire functionality routines (805), the routines for determining nets (804), the net manager (803), and the pin manager (802) resolves unspecified values on said electrical nets. The user may specify at least one value on said port and may specify whether said port is driven. The extension includes additional math functions (1901).Type: ApplicationFiled: August 2, 2010Publication date: June 23, 2011Inventors: Henry C. Chang, Kenneth S. Kundert
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Publication number: 20110054875Abstract: A design specifications-driven platform (100) for analog, mixed-signal and radio frequency verification with one embodiment comprising a client (160) and server (150) is presented. The server comprises an analog verification database (110), a code and document generator (1020), a design to specifications consistency checker (103), a symbol generator (104), a coverage analyzer (105), a server interface (106), a web server (111), and an analog verification server application (101). The client comprises a web browser (130), generated datasheets and reports (120), generated models, regression tests, netlists, connect modules, and symbols (121), generated simulation scripts (122), a client interface (124), design data (131), simulators (132), and a design data extractor (123).Type: ApplicationFiled: August 31, 2010Publication date: March 3, 2011Inventors: Henry C. Chang, Kenneth S. Kundert
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Patent number: 7827017Abstract: A system and method for performing circuit simulation is described. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked. Mechanisms are provided that allow for viewing, measurement or other manipulation of signals at specific locations in a circuit design for simulation, such as parameters that include observation points which are implemented using probes. One approach to executing a measurement is via a controllable and flexible control statement, which in one embodiment is the “run” statement. Improved interfaces for viewing, controlling, and manipulating simulations and simulation results are also provided.Type: GrantFiled: December 17, 2003Date of Patent: November 2, 2010Assignee: Cadence Design Systems, Inc.Inventor: Kenneth S. Kundert
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Patent number: 7822590Abstract: A system and method for performing circuit simulation is described. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked. Mechanisms are provided that allow for viewing, measurement or other manipulation of signals at specific locations in a circuit design for simulation, such as parameters that include observation points which are implemented using probes. One approach to executing a measurement is via a controllable and flexible control statement, which in one embodiment is the “run” statement. Improved interfaces for viewing, controlling, and manipulating simulations and simulation results are also provided.Type: GrantFiled: December 17, 2003Date of Patent: October 26, 2010Assignee: Cadence Design Systems, Inc.Inventor: Kenneth S. Kundert
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Patent number: 7574342Abstract: 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: GrantFiled: October 21, 2005Date of Patent: August 11, 2009Assignee: Cadence Design Systems, Inc.Inventor: Kenneth S. Kundert
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Publication number: 20040261058Abstract: A method and mechanism for implementing a general purpose scripting language that supports parallel execution is described. In one approach, parallel execution is provided in a seamless and high-level approach rather than requiring or expecting a user to have low-level programming expertise with parallel processing languages/functions. Also described is a system and method for performing circuit simulation. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked.Type: ApplicationFiled: December 17, 2003Publication date: December 23, 2004Inventor: Kenneth S. Kundert
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Publication number: 20040243375Abstract: A system and method for performing circuit simulation is described. The present approach provides methods and systems that create reusable and independent measurements for use with circuit simulators. Also disclosed are parallelizable measurements having looping constructs that can be run without interference between parallel iterations. Reusability is enhanced by having parameterized measurements. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked. Mechanisms are provided that allow for viewing, measurement or other manipulation of signals at specific locations in a circuit design for simulation, such as parameters that include observation points which are implemented using probes. One approach to executing a measurement is via a controllable and flexible control statement, which in one embodiment is the “run” statement. Improved interfaces for viewing, controlling, and manipulating simulations and simulation results are also provided.Type: ApplicationFiled: December 17, 2003Publication date: December 2, 2004Inventor: Kenneth S. Kundert
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Publication number: 20040243374Abstract: A system and method for performing circuit simulation is described. Revisions and history of the operating parameters of circuit designs subject to simulation are tracked. Mechanisms are provided that allow for viewing, measurement or other manipulation of signals at specific locations in a circuit design for simulation, such as parameters that include observation points which are implemented using probes. One approach to executing a measurement is via a controllable and flexible control statement, which in one embodiment is the “run” statement. Improved interfaces for viewing, controlling, and manipulating simulations and simulation results are also provided.Type: ApplicationFiled: December 17, 2003Publication date: December 2, 2004Inventor: Kenneth S. Kundert
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Patent number: 6636839Abstract: An efficient method for determining the periodic steady state response of a circuit driven by a periodic signal, the method including the steps of 1) using a shooting method to form a non-linear system of equations for initial conditions of the circuit that directly result in the periodic steady state response; 2) solving the non-linear system via a Newton iterative method, where each iteration of the Newton method involves solution of a respective linear system of equations; and 3) for each iteration of the Newton method, solving the respective linear system of equations associated with the iteration of the Newton method via an iterative technique. The iterative technique may be a matrix-implicit application of a Krylov subspace technique, resulting in a computational cost that grows approximately in a linear fashion with the number of nodes in the circuit.Type: GrantFiled: September 5, 2000Date of Patent: October 21, 2003Assignee: Cadence Design Systems, Inc.Inventors: Ricardo Telichevesky, Kenneth S. Kundert, Jacob K. White
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Patent number: 6493849Abstract: An efficient method for determining the periodic steady state response of a circuit driven by a periodic signal, the method including the steps of 1) using a shooting method to form a non-linear system of equations for initial conditions of the circuit that directly result in the periodic steady state response; 2) solving the non-linear system via a Newton iterative method, where each iteration of the Newton method involves solution of a respective linear system of equations; and 3) for each iteration of the Newton method, solving the respective linear system of equations associated with the iteration of the Newton method via an iterative technique. The iterative technique may be a matrix-implicit application of a Krylov subspace technique, resulting in a computational cost that grows approximately in a linear fashion with the number of nodes in the circuit.Type: GrantFiled: September 5, 2000Date of Patent: December 10, 2002Assignee: Cadence Design Systems, Inc.Inventors: Ricardo Telichevesky, Kenneth S. Kundert, Jacob K. White
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Patent number: 6381563Abstract: A system and method for generating inline subcircuits that enable a circuit designer to model and simulate circuits that when compared to conventional system and methods reduces the hierarchy from the perspective of the circuit designer, more efficiently models parasitic components, more efficiently parameterizes device models, more effectively creates models that are compatible with other simulation tools, can change the interface of a component without requiring the designer to use an extra layer of hierarchy, provides a more efficient interface by hiding details from the designer, enables hidden monitors and other functional designs to be automatically simulated by hiding these functions from the designer in a design level that is below the design level that is of interest to the designer, such as the geometrical parameter design level, can perform general purpose model binning with automatic selection, can export models and model parameters to other hierarchies without requiring an additional hierarchy inType: GrantFiled: January 22, 1999Date of Patent: April 30, 2002Assignee: Cadence Design Systems, Inc.Inventors: Donald J. O'Riordan, Walter J. Ghijsen, Kenneth S. Kundert