Patents by Inventor Kevin Brelsford

Kevin Brelsford 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).

  • Method and apparatus for managing violations and error classifications during physical verification
    Patent number: 8091055
    Abstract: Some embodiments provide a system for managing violations during physical verification. The system may identify a design-rule-check (DRC) violation by applying a set of DRC rules to a layout. The system can then receive an error classification from the user which specifies how the DRC violation is to be handled. Next, the system can store the DRC violation, the user-selected error classification, and a user identifier associated with the user in a database. If the user is not authorized to approve the error classification, the database can indicate that the error classification has not been approved. Later, a user who is authorized to approve the error classification can approve the error classification. The system can determine if a cell is known, and if so, the system can use the violations and error classifications stored in the database to speed up the verification process.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: January 3, 2012
    Assignee: Synopsys, Inc.
    Inventors: Kevin Brelsford, Keith Rast, William Christopher Dunn, Jason Richard Puryear
  • METHOD AND APPARATUS FOR MANAGING VIOLATIONS AND ERROR CLASSIFICATIONS DURING PHYSICAL VERIFICATION
    Publication number: 20100192113
    Abstract: Some embodiments provide a system for managing violations during physical verification. The system may identify a design-rule-check (DRC) violation by applying a set of DRC rules to a layout. The system can then receive an error classification from the user which specifies how the DRC violation is to be handled. Next, the system can store the DRC violation, the user-selected error classification, and a user identifier associated with the user in a database. If the user is not authorized to approve the error classification, the database can indicate that the error classification has not been approved. Later, a user who is authorized to approve the error classification can approve the error classification. The system can determine if a cell is known, and if so, the system can use the violations and error classifications stored in the database to speed up the verification process.
    Type: Application
    Filed: January 26, 2009
    Publication date: July 29, 2010
    Applicant: SYNOPSYS, INC.
    Inventors: Kevin Brelsford, Keith Rast, William Christopher Dunn, Jason Richard Puryear