Patents by Inventor William W. Dungan

William W. Dungan 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: 11301600
    Abstract: Generating a contributor-based power abstract for a device, including: identifying a clock power component for each of a plurality of clock gating domains, identifying a switching characteristic for each of the clock gating domains, combining the switching characteristics for all of the clock gating domains into a domain combination list, performing a per-case simulation based at least on the domain combination list, calculating an effective capacitance for each of the clock gating domains based at least on the per-case simulation, and generating a power abstract for each of the clock gating domains based at least on the effective capacitance.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: April 12, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Nagashyamala R. Dhanwada, William W. Dungan, David J. Hathaway, Arun Joseph, Gaurav Mittal, Ricardo H. Nigaglioni
  • Publication number: 20190362040
    Abstract: Generating a contributor-based power abstract for a device, including: identifying a clock power component for each of a plurality of clock gating domains, identifying a switching characteristic for each of the clock gating domains, combining the switching characteristics for all of the clock gating domains into a domain combination list, performing a per-case simulation based at least on the domain combination list, calculating an effective capacitance for each of the clock gating domains based at least on the per-case simulation, and generating a power abstract for each of the clock gating domains based at least on the effective capacitance.
    Type: Application
    Filed: August 7, 2019
    Publication date: November 28, 2019
    Inventors: NAGASHYAMALA R. DHANWADA, WILLIAM W. DUNGAN, DAVID J. HATHAWAY, ARUN JOSEPH, GAURAV MITTAL, RICARDO H. NIGAGLIONI
  • Patent number: 10460048
    Abstract: Generating a contributor-based power abstract for a device, including: identifying a clock power component for each of a plurality of clock gating domains, identifying a switching characteristic for each of the clock gating domains, combining the switching characteristics for all of the clock gating domains into a domain combination list, performing a per-case simulation based at least on the domain combination list, calculating an effective capacitance for each of the clock gating domains based at least on the per-case simulation, and generating a power abstract for each of the clock gating domains based at least on the effective capacitance.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: October 29, 2019
    Assignee: International Business Machines Corporation
    Inventors: Nagashyamala R. Dhanwada, William W. Dungan, David J. Hathaway, Arun Joseph, Gaurav Mittal, Ricardo H. Nigaglioni
  • Patent number: 9990454
    Abstract: A system and method for enabling the estimation and mitigation of self-heating in chip designs at a much earlier stage in a design flow. The system and method provides unique characterization of each standard cell in a library for its effective thermal resistance based on the topology and layout of the cell, and brings this per standard cell instance based delta-T to be available for the timing closure tools when completing a synthesized design. Thus, at the timing closure process, the generated design is free of self heating violations. The method computes a unique thermal resistance characterization on per standard cell manner—based on the topology, function and layout of the standard cell, and uses that to compute the deltaT per instance of the design. This information is presented to a violation mitigation tool which changes the power levels of the cells, logic function to mitigate the self heating violations.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: June 5, 2018
    Assignee: International Business Machines Corporation
    Inventors: Nagashyamala R. Dhanwada, William W. Dungan, Arun Joseph, Sungjae Lee, Arjen A. Mets, Michael R. Scheuermann, Leon J. Sigal, Richard A. Wachnick, James D. Warnock
  • Publication number: 20170351785
    Abstract: A system and method for enabling the estimation and mitigation of self-heating in chip designs at a much earlier stage in a design flow. The system and method provides unique characterization of each standard cell in a library for its effective thermal resistance based on the topology and layout of the cell, and brings this per standard cell instance based delta-T to be available for the timing closure tools when completing a synthesized design. Thus, at the timing closure process, the generated design is free of self heating violations. The method computes a unique thermal resistance characterization on per standard cell manner—based on the topology, function and layout of the standard cell, and uses that to compute the deltaT per instance of the design. This information is presented to a violation mitigation tool which changes the power levels of the cells, logic function to mitigate the self heating violations.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 7, 2017
    Inventors: Nagashyamala R. Dhanwada, William W. Dungan, Arun Joseph, Sungjae Lee, Arjen A. Mets, Michael R. Scheuermann, Leon J. Sigal, Richard A. Wachnick, James D. Warnock
  • Publication number: 20170004234
    Abstract: Generating a contributor-based power abstract for a device, including: identifying a clock power component for each of a plurality of clock gating domains, identifying a switching characteristic for each of the clock gating domains, combining the switching characteristics for all of the clock gating domains into a domain combination list, performing a per-case simulation based at least on the domain combination list, calculating an effective capacitance for each of the clock gating domains based at least on the per-case simulation, and generating a power abstract for each of the clock gating domains based at least on the effective capacitance.
    Type: Application
    Filed: July 1, 2015
    Publication date: January 5, 2017
    Inventors: NAGASHYAMALA R. DHANWADA, WILLIAM W. DUNGAN, DAVID J. HATHAWAY, ARUN JOSEPH, GAURAV MITTAL, RICARDO H. NIGAGLIONI
  • Patent number: 8898049
    Abstract: A method of generating system level power information for an embedded application configured to execute on a multi-core system-on-chip (SoC), which includes configuring a simulation model of hardware of the SoC that executes the embedded application; loading one or more software components of the embedded application into the simulation model of the SoC hardware; executing the one or more software components of the embedded application on the simulation model, and extracting state information about both the software components of the embedded application and hardware components of the SoC; determining, from the hardware state information, per-cycle energy values for the hardware components of the SoC; and creating a power profile from the software state information by accumulating the per-cycle energy values and assigning the per-cycle energy values to corresponding software components.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: November 25, 2014
    Assignee: International Business Machines Corporation
    Inventors: Nagashyamala R. Dhanwada, Joseph Arun, William W. Dungan
  • Publication number: 20100268523
    Abstract: A method of generating system level power information for an embedded application configured to execute on a multi-core system-on-chip (SoC), which includes configuring a simulation model of hardware of the SoC that executes the embedded application; loading one or more software components of the embedded application into the simulation model of the SoC hardware; executing the one or more software components of the embedded application on the simulation model, and extracting state information about both the software components of the embedded application and hardware components of the SoC; determining, from the hardware state information, per-cycle energy values for the hardware components of the SoC; and creating a power profile from the software state information by accumulating the per-cycle energy values and assigning the per-cycle energy values to corresponding software components.
    Type: Application
    Filed: April 20, 2009
    Publication date: October 21, 2010
    Applicant: International Business Machines Corporation
    Inventors: Nagashyamala R. Dhanwada, Joseph Arun, William W. Dungan