Patents by Inventor Christopher M. Kowalski

Christopher M. Kowalski 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).

  • Methods, systems, and computer readable media for precise measurement of switching latency of packet switching devices
    Patent number: 9806980
    Abstract: Methods, systems, and computer readable media for precise measurement of switching latency of packet switching devices are disclosed. One method includes steps implemented in a network equipment test device including at least one processor. The method includes transmitting frames to a device under test. The method further includes receiving one of the transmitted frames from the device under test. The method further includes determining a measured latency of the device under test based on a difference between a time that the one frame was transmitted to the device under test and a time that the one frame was received from the device under test. The method further includes determining an indication of backlog latency of the device under test caused by the device under test inserting a virtual lane marker in traffic transmitted to the network equipment and reporting the indication of the backlog latency.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 31, 2017
    Assignee: Ixia
    Inventors: Michael D. Hutchison, Christopher M. Kowalski
  • METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR PRECISE MEASUREMENT OF SWITCHING LATENCY OF PACKET SWITCHING DEVICES
    Publication number: 20150281027
    Abstract: Methods, systems, and computer readable media for precise measurement of switching latency of packet switching devices are disclosed. One method includes steps implemented in a network equipment test device including at least one processor. The method includes transmitting frames to a device under test. The method further includes receiving one of the transmitted frames from the device under test. The method further includes determining a measured latency of the device under test based on a difference between a time that the one frame was transmitted to the device under test and a time that the one frame was received from the device under test. The method further includes determining an indication of backlog latency of the device under test caused by the device under test inserting a virtual lane marker in traffic transmitted to the network equipment and reporting the indication of the backlog latency.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 1, 2015
    Inventors: Michael D. Hutchison, Christopher M. Kowalski