Patents by Inventor Steven J. Schaffer

Steven J. Schaffer 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).

  • Characterizing application performance within a network
    Patent number: 7574504
    Abstract: A system and method are described for analyzing the performance of a network while processing an application. The method involves measuring and calculating the amount of time nodes are active processing and sending frames, as well as the amount of time that frames spend traversing the network. Graphical user interfaces are provided to effectively present significant measurements and calculations.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: August 11, 2009
    Assignee: Compuware Corporation
    Inventors: Joseph V. Rustad, Jacob Weil, Steven J. Schaffer
  • Response time analysis of network performance
    Patent number: 7133911
    Abstract: A system and method are described for analyzing the performance of a network while processing an application. The method involves measuring and calculating the amount of time nodes are active processing and sending frames, as well as the amount of time that frames spend traversing the network. Graphical user interfaces are provided to effectively present significant measurements and calculations.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: November 7, 2006
    Assignee: Compuware Corporation
    Inventors: Steven J. Schaffer, Jacob Weil
  • Method to display information representing network traffic on a computer display monitor
    Patent number: 6584501
    Abstract: A user interface and computer-implemented method for analyzing and displaying network traffic performance assessment data in a computer network. Packet trace data is organized into application-level threads for display in a visual thread diagram. The user can manipulate the visual thread diagram to configure it in a number of ways in a dynamic manner.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: June 24, 2003
    Assignee: Compuware Corporation
    Inventors: Michael Cartsonis, John Graham-Cumming, Willem A. Koulman, Steven J. Schaffer, Jacob Weil
  • Application response time prediction
    Patent number: 6393480
    Abstract: A computer-implemented method, system, and program product for application response time prediction provides an estimate of application performance in a second network given performance characteristics of the application in a first network. The invention avoids unnecessary simulation of an entire network, and is able to take into account the effect of network performance characteristics on both simple and non-simple applications, including those having relationships among threads.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: May 21, 2002
    Assignee: Compuware Corporation
    Inventors: Zhigang Qin, Steven J. Schaffer, Peter John Sevcik