Patents by Inventor Larry Katzeff

Larry Katzeff 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).

  • Controlled exception-based routing protocol validation
    Patent number: 7940680
    Abstract: Systems and methods for testing an implementation of a routing protocol in a device are disclosed. Generally, a sequence of protocol messages is provided and a test is performed to test how a device reacts to a specific playback rate for the sequence of protocol messages, wherein the specific playback rate causes a protocol state transition in the device which differs from an expected protocol state transition absent a specific playback delay.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: May 10, 2011
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Shih Chung Soon, Larry Katzeff, Michael F. Martincello, Geethakumari P M Nair, Teong Yee Tan
  • Controlled Exception-Based Routing Protocol Validation
    Publication number: 20080130514
    Abstract: Systems and methods for testing an implementation of a routing protocol in a device are disclosed. Generally, a sequence of protocol messages is provided and a test is performed to test how a device reacts to a specific playback rate for the sequence of protocol messages, wherein the specific playback rate causes a protocol state transition in the device which differs from an expected protocol state transition absent a specific playback delay.
    Type: Application
    Filed: January 17, 2008
    Publication date: June 5, 2008
    Inventors: Shih Chung Soon, Larry Katzeff, Michael F. Martincello, Geethakumari P. M. Nair, Teong Yee Tan
  • Controlled exception-based routing protocol validation
    Patent number: 7342892
    Abstract: An implementation of a routing protocol in a device is tested by testing how the device reacts to messages and message sequences having potentially adverse conditions. Examples include messages either having a specified message size which is intentionally out-of-conformance with the routing protocol, having a repeated protocol field, absent a mandatory protocol field, or having an incorrect order of protocol fields. Examples also include message sequences having either a specific playback delay between at least one pair of adjacent protocol messages in the first sequence of protocol messages, a specific playback rate for the second sequence of protocol messages, or a modified message order.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: March 11, 2008
    Assignee: SBC Properties, L.P.
    Inventors: Shih Chung Soon, Larry Katzeff, Michael F. Martincello, Geethakumari P M Nair, Teong Yee Tan
  • Controlled exception-based routing protocol validation
    Publication number: 20040001443
    Abstract: An implementation of a routing protocol in a device is tested by testing how the device reacts to messages and message sequences having potentially adverse conditions. Examples include messages either having a specified message size which is intentionally out-of-conformance with the routing protocol, having a repeated protocol field, absent a mandatory protocol field, or having an incorrect order of protocol fields. Examples also include message sequences having either a specific playback delay between at least one pair of adjacent protocol messages in the first sequence of protocol messages, a specific playback rate for the second sequence of protocol messages, or a modified message order.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 1, 2004
    Inventors: Shih Chung Soon, Larry Katzeff, Michael F. Martincello, Geethakumari P.M. Nair, Teong Yee Tan