Patents by Inventor Duminda Wijesekera

Duminda Wijesekera 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).

  • Publication number: 20200036748
    Abstract: A system for autonomous control in power systems is disclosed. In particular, a secure overlay communication model (“SOCOM”) is disclosed, the system including a combination of hardware and software for detecting power grid states, and determining appropriate actions for addressing detected states. The SOCOM is a logic-based system deployed onto computing devices such as field programmable gate arrays installed at bus controllers, Supervisory Control and Data Acquisition Systems (“SCADAs”), Intelligent Electronic Devices (“IEDs”), or other computing devices in power grid stations and substations. The logic-based nature of the SOCOM allows for seamless integration with preexisting power system equipment. In response to detecting various power grid faults such as line failures and over-current states, the system automatically rearranges power line configurations at the power stations and/or substations.
    Type: Application
    Filed: July 25, 2019
    Publication date: January 30, 2020
    Inventors: Eniye Tebekaemi, Duminda Wijesekera
  • Publication number: 20090178102
    Abstract: Disclosed is an access and information flow control framework that includes a series of phases. The first phase includes: receiving raw authorization requirement(s); creating authorization requirement representation(s) from the raw authorization requirement(s) using a language; and analyzing the authorization requirement representation(s) to ensure that they are consistent and conflict-free. The second phase includes: creating case authorization(s) from the authorization requirement representation(s) and validating consistency between the authorization requirement representation(s) and the use case authorization(s). The use case authorization may be created by propagating the authorization requirement representation(s) to a subject hierarchy; enumerating implicit authorization(s) derived from the authorization requirement representation(s); resolving inconsistencies in the use case authorization(s); and completing incomplete use case authorization(s).
    Type: Application
    Filed: January 4, 2008
    Publication date: July 9, 2009
    Inventors: Khaled Alghathbar, Duminda Wijesekera
  • Patent number: 7340469
    Abstract: Disclosed is an access and information flow control framework. The framework includes: creating consistent and conflict-free authorization requirement(s) from the raw authorization requirement(s); creating consistent case authorization(s); creating information flow and propagated information flow requirement(s) that are consistent with an information flow policy; creating operation authorization(s); resolving inconsistencies in operation authorization(s); and ensuring that the operation authorization(s) are conflict-free.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: March 4, 2008
    Assignee: George Mason Intellectual Properties, Inc.
    Inventors: Khaled S. Alghathbar, Duminda Wijesekera
  • Publication number: 20060101516
    Abstract: The present invention deals with a honeynet based actionable warning system. Automatic decisions to combat attacks learned through a honeynet may be generated by receiving data originating from one or more network analyzers. The data may be classified into a hierarchy of predetermined attributes, as well as sorted using these attributes. Topics relating to one or more of predetermined attributes may be communicated to a client. A request to implement topics may be received from the client. Notification may be sent to the client that includes information related to the request.
    Type: Application
    Filed: October 12, 2005
    Publication date: May 11, 2006
    Inventors: Sushanthan Sudaharan, Srikrishna Dammalapati, Sijan Rai, Duminda Wijesekera