Patents by Inventor Joseph F. Dempsey

Joseph F. Dempsey 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).

  • System and method for dynamically constructing packet classification rules
    Publication number: 20030123452
    Abstract: A system and method classifies packets with a programmably fixed network processor program and dynamically updated data structures. The network processor program selects predetermined packet field values of the packets transmitted across the network and classifies the packets by matching one or more packet field values with a data structure. New packet classifications are dynamically created by updating the data structure to associate one or more predetermined packet field values with the new packet classification. For instance, a parse tree program extracts packet header information and matches the packet header information to the data structure. A pattern tree data structure provides longest prefix matches and an ordered tree data structure provides combination matches so that classification of arbitrary Boolean combinations of extracted header fields can be formed.
    Type: Application
    Filed: December 27, 2001
    Publication date: July 3, 2003
    Applicant: TippingPoint Technologies, Inc.
    Inventors: Dennis J. Cox, Alexander I. Tomlinson, Joseph F. Dempsey, Matthew C. Laswell, Scott Strentzsch, Stephen Egbert, Terry G. Ahnstedt, Brian C. Smith