Patents by Inventor Richard Brian Livingston

Richard Brian Livingston 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: 8774407
    Abstract: An example method is provided and includes providing an encrypted image to a central processing unit of an integrated circuit and decrypting the encrypted image using a cryptographic key element. The cryptographic key element is embedded within the integrated circuit. The method also includes evaluating the decrypted image in order to verify its authenticity, and executing the decrypted image if the decrypted image is successfully verified. In more particular embodiments, the verification includes utilizing an executable and linkable format (ELF) to signify that encryption has been enabled for at least a portion of the encrypted image. A processor within the integrated circuit can be provided with the cryptographic key element that corresponds to a product family of devices. The method can also include providing a corresponding image of the decrypted image to an external memory of the integrated circuit.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: July 8, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Mark W. Eklund, Jared B. Pendleton, Richard Brian Livingston, Robert T. Bell, Steven Joseph Rich
  • Patent number: 8327343
    Abstract: Methods, systems and apparatus for optimizing a source code are provided. Dependencies for each header file and source code file in the source code are identified for all possible compilation contexts. Certain dependencies can be classified into complete types and incomplete types or named references. Further, these incomplete type dependencies are removed by adding forward declarations where appropriate.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: December 4, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Marcos S. Klein, Richard Brian Livingston, Vinod Pandarinathan, Venkata Rajasekharu Athreyapurapu
  • Publication number: 20120054499
    Abstract: An example method is provided and includes providing an encrypted image to a central processing unit of an integrated circuit and decrypting the encrypted image using a cryptographic key element. The cryptographic key element is embedded within the integrated circuit. The method also includes evaluating the decrypted image in order to verify its authenticity, and executing the decrypted image if the decrypted image is successfully verified. In more particular embodiments, the verification includes utilizing an executable and linkable format (ELF) to signify that encryption has been enabled for at least a portion of the encrypted image. A processor within the integrated circuit can be provided with the cryptographic key element that corresponds to a product family of devices. The method can also include providing a corresponding image of the decrypted image to an external memory of the integrated circuit.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 1, 2012
    Inventors: Mark W. Eklund, Jared B. Pendleton, Richard Brian Livingston, Robert T. Bell, Steven Joseph Rich
  • Publication number: 20080126867
    Abstract: A system and method for selective regression testing is described. The system and method provides a test script database identifying multiple portions of a first low level code (e.g., assembly code) and tests associated with at least one of the multiple portions of first low level code. A comparator may identify a change set between the multiple portions of the first low level code and corresponding portions of modified low level code. After the database has been queried by a changed set query module, using the identified change set as key, an optimum or reduced test suite is identified from the database, to be run on the modified low level code, thereby to verify the change set.
    Type: Application
    Filed: August 30, 2006
    Publication date: May 29, 2008
    Inventors: Vinod Pandarinathan, Robert Sargent, Richard Brian Livingston, James Kevin Lambert, Michael W. Turnlund, Donald Arthur Williams, Balachander Chandrasekaran, Lakshmankumar Mukkavilli