Patents by Inventor David M. Colleran

David M. Colleran 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: 11790144
    Abstract: A method is described. The method includes calculating electric and/or magnetic fields in free space in response to: i) respective positions and motions of one or more charges and/or one or more current loops in the free space; ii) charges on nodes in the electrical circuit in the free space; iii) charge motions in the electrical circuit. The method includes calculating new respective positions and motions of the one or more charges and/or one or more current loops in the free space in response to respective forces applied to the one or more charges and/or the one or more current loops by the electric and/or magnetic fields. The method includes calculating new charges on nodes within the electrical circuit and new charge motions within the electrical circuit in response to the new positions and motions of the one or more charges and/or one or more current loops in free space, the charges on the nodes in the electrical circuit and the charge motions in the electrical circuit.
    Type: Grant
    Filed: October 13, 2018
    Date of Patent: October 17, 2023
    Assignee: Elloveo, Inc.
    Inventors: David M. Colleran, Carlos Manuel Godino Fernandez
  • Publication number: 20200117767
    Abstract: A method is described. The method includes calculating electric and/or magnetic fields in free space in response to: i) respective positions and motions of one or more charges and/or one or more current loops in the free space; ii) charges on nodes in the electrical circuit in the free space; iii) charge motions in the electrical circuit. The method includes calculating new respective positions and motions of the one or more charges and/or one or more current loops in the free space in response to respective forces applied to the one or more charges and/or the one or more current loops by the electric and/or magnetic fields. The method includes calculating new charges on nodes within the electrical circuit and new charge motions within the electrical circuit in response to the new positions and motions of the one or more charges and/or one or more current loops in free space, the charges on the nodes in the electrical circuit and the charge motions in the electrical circuit.
    Type: Application
    Filed: October 13, 2018
    Publication date: April 16, 2020
    Inventors: David M. COLLERAN, Carlos Manuel Godino Fernandez
  • Patent number: 8635564
    Abstract: Methods for optimizing design parameters of a circuit are disclosed. In one aspect, an optimization problem includes one or more performance specifications that represent an exponent of a design parameter to be optimized. Various parameters of passive and active circuit devices may be efficiently and accurately optimized as a result. In another aspect, linear performance specifications are included for accurately calculating voltages. In yet other aspects of the invention, three special types of convex optimization problems are disclosed for enabling the above use of exponents of design parameters which provide efficient and accurate calculations of a virtually unlimited array of circuit parameters and performance characteristics.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: January 21, 2014
    Assignee: Synopsys, Inc.
    Inventors: Maria Del Mar Hershenson, David M. Colleran
  • Publication number: 20130227512
    Abstract: Methods for optimizing design parameters of a circuit are disclosed. In one aspect, an optimization problem includes one or more performance specifications that represent an exponent of a design parameter to be optimized. Various parameters of passive and active circuit devices may be efficiently and accurately optimized as a result. In another aspect, linear performance specifications are included for accurately calculating voltages. In yet other aspects of the invention, three special types of convex optimization problems are disclosed for enabling the above use of exponents of design parameters which provide efficient and accurate calculations of a virtually unlimited array of circuit parameters and performance characteristics.
    Type: Application
    Filed: March 25, 2013
    Publication date: August 29, 2013
    Inventors: Maria Del Mar Hershenson, David M. Colleran
  • Patent number: 8407651
    Abstract: Methods for optimizing design parameters of a circuit are disclosed. In one aspect, an optimization problem includes one or more performance specifications that represent an exponent of a design parameter to be optimized. Various parameters of passive and active circuit devices may be efficiently and accurately optimized as a result. In another aspect, linear performance specifications are included for accurately calculating voltages. In yet other aspects of the invention, three special types of convex optimization problems are disclosed for enabling the above use of exponents of design parameters which provide efficient and accurate calculations of a virtually unlimited array of circuit parameters and performance characteristics.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: March 26, 2013
    Assignee: Synopsys, Inc.
    Inventors: Mar Hershenson, David M. Colleran
  • Publication number: 20100299649
    Abstract: Methods for optimizing design parameters of a circuit are disclosed. In one aspect, an optimization problem includes one or more performance specifications that represent an exponent of a design parameter to be optimized. Various parameters of passive and active circuit devices may be efficiently and accurately optimized as a result. In another aspect, linear performance specifications are included for accurately calculating voltages. In yet other aspects of the invention, three special types of convex optimization problems are disclosed for enabling the above use of exponents of design parameters which provide efficient and accurate calculations of a virtually unlimited array of circuit parameters and performance characteristics.
    Type: Application
    Filed: August 4, 2010
    Publication date: November 25, 2010
    Inventors: Mar Hershenson, David M. Colleran
  • Patent number: 7783996
    Abstract: Methods for optimizing design parameters of a circuit are disclosed. In one aspect, an optimization problem includes one or more performance specifications that represent an exponent of a design parameter to be optimized. Various parameters of passive and active circuit devices may be efficiently and accurately optimized as a result. In another aspect, linear performance specifications are included for accurately calculating voltages. In yet other aspects of the invention, three special types of convex optimization problems are disclosed for enabling the above use of exponents of design parameters which provide efficient and accurate calculations of a virtually unlimited array of circuit parameters and performance characteristics.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: August 24, 2010
    Assignee: Magma Design Automation, Inc.
    Inventors: Mar Hershenson, David M. Colleran
  • Patent number: 7703050
    Abstract: Methods for optimizing design parameters of a circuit are disclosed. In one aspect, an optimization problem includes one or more performance specifications that represent an exponent of a design parameter to be optimized. Various parameters of passive and active circuit devices may be efficiently and accurately optimized as a result. In another aspect, linear performance specifications are included for accurately calculating voltages. In yet other aspects of the invention, three special types of convex optimization problems are disclosed for enabling the above use of exponents of design parameters which provide efficient and accurate calculations of a virtually unlimited array of circuit parameters and performance characteristics.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: April 20, 2010
    Assignee: Magma Design Automation, Inc.
    Inventors: Mar Hershenson, David M. Colleran
  • Patent number: 7458041
    Abstract: Methods for optimizing design parameters of a circuit are disclosed. In one aspect, an optimization problem includes one or more performance specifications that represent an exponent of a design parameter to be optimized. Various parameters of passive and active circuit devices may be efficiently and accurately optimized as a result. In another aspect, linear performance specifications are included for accurately calculating voltages. In yet other aspects of the invention, three special types of convex optimization problems are disclosed for enabling the above use of exponents of design parameters which provide efficient and accurate calculations of a virtually unlimited array of circuit parameters and performance characteristics.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: November 25, 2008
    Assignee: Magma Design Automation, Inc.
    Inventors: Mar Hershenson, David M. Colleran
  • Patent number: 6954921
    Abstract: A method is described that involves recognizing that a variable within a monomial or posynomial expression for a characteristic of an analog or mixed signal system has a dependency on a lower level expression. Then, retrieving from a database the lower level expression and substituting it into the expression in place of the variable so as to describe the system at a greater level of detail than the variable did.
    Type: Grant
    Filed: April 7, 2002
    Date of Patent: October 11, 2005
    Assignee: Barcelona Design, Inc.
    Inventors: Arash Hassibi, Maria del Mar Hershenson, David M. Colleran
  • Patent number: 6909330
    Abstract: A method is described that involves developing a more detailed description of a phase lock loop system by substituting, into a monomial or posynomial equation that is part of a family of monomial and posynomial expressions that describe functional characteristics of the PLL at the system level, a lower level expression that describes a characteristic of one the PLL's basic building blocks.
    Type: Grant
    Filed: April 7, 2002
    Date of Patent: June 21, 2005
    Assignee: Barcelona Design, Inc.
    Inventors: David M. Colleran, Arrash Hassibi
  • Publication number: 20040230408
    Abstract: A method is described that involves developing a more detailed description of a phase lock loop system by substituting, into a monomial or posynomial equation that is part of a family of monomial and posynomial expressions that describe functional characteristics of the PLL at the system level, a lower level expression that describes a characteristic of one the PLL's basic building blocks.
    Type: Application
    Filed: March 26, 2004
    Publication date: November 18, 2004
    Inventors: David M. Colleran, Arrash Hassibi
  • Publication number: 20040172609
    Abstract: A method is described that involves recognizing that a variable within a monomial or posynomial expression for a characteristic of an analog or mixed signal system has a dependency on a lower level expression. Then, retrieving from a database the lower level expression and substituting it into the expression in place of the variable so as to describe the system at a greater level of detail than the variable did.
    Type: Application
    Filed: April 7, 2002
    Publication date: September 2, 2004
    Inventors: Arash Hassibi, Maria del Mar Hershenson, David M. Colleran