Patents by Inventor Matthew Liberty

Matthew Liberty 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: 8635574
    Abstract: An improved method and system for performing extraction on an integrated circuit design is disclosed. Extraction may be performed at granularities much smaller than the entire IC design, in which a halo is used to identify a geometric volume surrounding an object of interest to identify neighboring objects and generate an electrical model. The extraction approach can be taken for Islands, Nets, as well as other granularities within the design. Re-extraction of a design can occur at granularities smaller than a net. Some approaches utilize Island-stitching to replace an island within a net. An approach is also described for improving cross-references for cross-coupled objects.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: January 21, 2014
    Assignee: Cadence Design Systems, Inc.
    Inventors: Eric Nequist, Richard Brashears, Matthew A. Liberty, Michael C. McSherry
  • Patent number: 8386975
    Abstract: An improved method, system, user interface, and computer program product is described for using a memory and learning component to improve capacitance and resistance estimates based on the types of layouts and devices being evaluated. According to some approaches, a learning component is implemented that uses recommended test sets from the evaluation component to automatically test the extraction estimates against the field solver. Variability models from manufacturing or electrical analysis may also be used to select a series of objects (unique conductor geometries) that make up a conduction path or net or specific conductor geometries for evaluation and additional learning improvement.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: February 26, 2013
    Assignee: Cadence Design Systems, Inc.
    Inventors: David White, Matthew Liberty, Eric Nequist, Michael McSherry
  • Patent number: 8375342
    Abstract: An improved method and system for performing extraction on an integrated circuit design is disclosed. Extraction may be performed at granularities much smaller than the entire IC design, in which a halo is used to identify a geometric volume surrounding an object of interest to identify neighboring objects and generate an electrical model. The extraction approach can be taken for Islands, Nets, as well as other granularities within the design. Re-extraction of a design can occur at granularities smaller than a net. Some approaches utilize Island-stitching to replace an island within a net. An approach is also described for improving cross-references for cross-coupled objects.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: February 12, 2013
    Assignee: Cadence Design Systems, Inc.
    Inventors: Eric Nequist, Richard Brashears, Matthew A. Liberty, Michael C. McSherry
  • Patent number: 8316331
    Abstract: An improved method and system for stitching one or more islands of an integrated circuit design is disclosed. Multiple connected island objects in the IC design are first identified. At least one of the multiple identified connected island objects is then modified to form a modified island object. The modified island object may then be stitched into the multiple identified connected island objects. In some embodiments, stitching a modified island object may be implemented by tracking the endpoint(s), port(s), or node(s) of the connected island object being modified and stitched.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: November 20, 2012
    Assignee: Cadence Design Systems, Inc.
    Inventors: Eric Nequist, Richard Brashears, Matthew A. Liberty, Michael C. McSherry
  • Patent number: 7870517
    Abstract: An improved method and system for performing extraction on an integrated circuit design is disclosed. Extraction can be performed at granularities much smaller than the entire IC design, in which a halo is used to identify a geometric volume surrounding an object of interest to identify neighboring objects and generate an electrical model. The extraction approach can be taken for Islands, Nets, as well as other granularities within the design. Re-extraction of a design can occur at granularities smaller than a net. Some approaches utilize Island-stitching to replace an island within a net. An approach is also described for improving cross-references for cross-coupled objects.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: January 11, 2011
    Assignee: Cadence Design Systems, Inc.
    Inventors: Eric Nequist, Richard Brashears, Matthew A. Liberty, Michael C. McSherry
  • Publication number: 20090199139
    Abstract: An improved method, system, user interface, and computer program product is described for using a memory and learning component to improve capacitance and resistance estimates based on the types of layouts and devices being evaluated. According to some approaches, a learning component is implemented that uses recommended test sets from the evaluation component to automatically test the extraction estimates against the field solver. Variability models from manufacturing or electrical analysis may also be used to select a series of objects (unique conductor geometries) that make up a conduction path or net or specific conductor geometries for evaluation and additional learning improvement.
    Type: Application
    Filed: December 26, 2008
    Publication date: August 6, 2009
    Inventors: David White, Matthew Liberty, Eric Nequist, Michael McSherry
  • Publication number: 20070257885
    Abstract: Systems and methods according to the present invention describe 3D pointing devices which enhance usability by transforming sensed motion data from a first frame of reference (e.g., the body of the 3D pointing device) into a second frame of reference (e.g., a user's frame of reference). One exemplary embodiment of the present invention removes effects associated with a tilt orientation in which the 3D pointing device is held by a user.
    Type: Application
    Filed: June 20, 2007
    Publication date: November 8, 2007
    Applicant: Hillcrest Laboratories, Inc.
    Inventor: Matthew Liberty
  • Publication number: 20070252813
    Abstract: Systems and methods according to the present invention address these needs and others by providing a handheld device, e.g., a 3D pointing device, which uses at least one sensor to detect motion of the handheld device. The detected motion can then be mapped into a desired output, e.g., cursor movement.
    Type: Application
    Filed: June 20, 2007
    Publication date: November 1, 2007
    Applicant: Hillcrest Laboratories, Inc.
    Inventors: Matthew Liberty, Daniel Simpkins, Charles Gritton, Mark Turner, Frank Hunleth
  • Publication number: 20070247425
    Abstract: Systems and methods according to the present invention address these needs and others by providing a handheld device, e.g., a 3D pointing device, which uses hand tremor as an input. One or more sensors within the handheld device detect a user's hand tremor and identify the user based on the detected tremor.
    Type: Application
    Filed: June 20, 2007
    Publication date: October 25, 2007
    Applicant: Hillcrest Laboratories, Inc.
    Inventors: Matthew Liberty, Christopher Roller, Daniel Simpkins, Charles Gritton
  • Publication number: 20070124097
    Abstract: Systems and methods according to the present invention address these needs and others by providing a system for calibrating a sensor using a constant vector field.
    Type: Application
    Filed: November 27, 2006
    Publication date: May 31, 2007
    Applicant: Hillcrest Laboratories, Inc.
    Inventors: Friedrich Geck, Matthew Liberty, Mark Turner
  • Publication number: 20070091068
    Abstract: Systems and methods according to the present invention describe 3D pointing devices which enhance usability by transforming sensed motion data from a first frame of reference (e.g., the body of the 3D pointing device) into a second frame of reference (e.g., a user's frame of reference). One exemplary embodiment of the present invention removes effects associated with a tilt orientation in which the 3D pointing device is held by a user.
    Type: Application
    Filed: December 18, 2006
    Publication date: April 26, 2007
    Applicant: Hillcrest Laboratories, Inc.
    Inventor: Matthew Liberty
  • Publication number: 20060028446
    Abstract: Systems and methods according to the present invention describe free space pointing devices and methods which detect movement of the free space pointing device and remove unintentional movement from the output readings.
    Type: Application
    Filed: May 2, 2005
    Publication date: February 9, 2006
    Applicant: Hillcrest Communications, Inc.
    Inventors: Matthew Liberty, Frank Hunleth
  • Publication number: 20050253806
    Abstract: Systems and methods according to the present invention address these needs and others by providing a handheld device, e.g., a free space pointing device, which uses at least one sensor to detect motion of the handheld device. The detected motion can then be mapped into a desired output, e.g., cursor movement.
    Type: Application
    Filed: May 2, 2005
    Publication date: November 17, 2005
    Applicant: Hillcrest Communications, Inc.
    Inventors: Matthew Liberty, Daniel Simpkins, Charles Gritton, Mark Turner, Frank Hunleth
  • Publication number: 20050243062
    Abstract: Systems and methods according to the present invention describe free space pointing devices which enhance usability by transforming sensed motion data from a first frame of reference (e.g., the body of the free space pointing device) into a second frame of reference (e.g., a user's frame of reference). One exemplary embodiment of the present invention removes effects associated with a tilt orientation in which the free space pointing device is held by a user.
    Type: Application
    Filed: May 2, 2005
    Publication date: November 3, 2005
    Applicant: Hillcrest Communications, Inc.
    Inventor: Matthew Liberty
  • Publication number: 20050243061
    Abstract: Systems and methods according to the present invention address these needs and others by providing a handheld device, e.g., a free space pointing device, which uses hand tremor as an input. One or more sensors within the handheld device detect a user's hand tremor and identify the user based on the detected tremor.
    Type: Application
    Filed: May 2, 2005
    Publication date: November 3, 2005
    Applicant: Hillcrest Communications, Inc.
    Inventors: Matthew Liberty, Christopher Roller, Daniel Simpkins, Charles Gritton
  • Publication number: 20050240555
    Abstract: Disclosed is a Class V Interactive Electronic Technical Manual (IETM) that allows remote diagnostic engineers to interact directly with on-site maintenance technicians and a system under test. In addition, the disclosed IETM permits automatic synchronization of files on a maintenance technician's portable electronic display device. The disclosed IETM is also capable of dynamically displaying asset specific information and dynamically displaying technical information in multiple languages.
    Type: Application
    Filed: December 23, 2004
    Publication date: October 27, 2005
    Applicant: Lockheed Martin Corporation
    Inventors: Bruce Wilde, Matthew Liberty, Michael Blackwell, Richard Berbaum, Edward Bestle
  • Publication number: 20050203891
    Abstract: An automated system and method to permit users to find and register available domain names in numerous different ccTLDs. The system provides real-time searching of large numbers of ccTLDs for each user so that during a single web session, the user can simply select the available ccTLDs from the resultant list, and purchase the desired ccTLDs online. The system also formats the user's information in the appropriate manner for each selected ccTLD and performs the necessary electronic transactions to register the ccTLDs.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 15, 2005
    Inventors: Larry Broadhurst, Jeffrey Johnson, Matthew Liberty, Matt Ho
  • Publication number: 20050174324
    Abstract: Systems and methods according to the present invention address these needs and others by providing a free space pointing device and methods for free space pointing which provide accurate translation of movement of the free space pointing device into user interface commands, e.g., cursor movement. According to exemplary embodiments of the present invention, a free space pointing device includes a plurality of accelerometers.
    Type: Application
    Filed: October 21, 2004
    Publication date: August 11, 2005
    Applicant: Hillcrest Communications, Inc.
    Inventors: Matthew Liberty, Daniel Simpkins