Patents by Inventor William J. Mitchem

William J. Mitchem 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).

  • Multi-rate shared memory architecture for frame storage and switching
    Patent number: 7054312
    Abstract: Shared memory provides buffering and switching for all frames that flow through a fiber channel switch. Received frames are written to shared memory by the receiving port then read from shared memory by the transmitting port. Shared memory provides for data to be written to a buffer at one rate, and read from a buffer at a different rate, or vice versa.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: May 30, 2006
    Assignee: McDATA Corporation
    Inventor: William J. Mitchem
  • Compact, shared route lookup table for a fiber channel switch
    Patent number: 6804245
    Abstract: A central route table design in a fiber channel switch for providing one location for D_ID and exit port combinations. The fiber channel switch has a plurality of ports, each are coupled to the central route look-up table.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: October 12, 2004
    Assignee: McData Corporation
    Inventors: William J. Mitchem, Jeffrey J. Nelson
  • Route lookup caching for a fiber channel switch
    Patent number: 6606322
    Abstract: A route caching design in a fiber channel switch for providing quick access to recently used D_ID and exit port combinations. The fiber channel switch has a plurality of ports, each are coupled to a central route look-up table. A cache is coupled to each port for storing D_ID to exit port association information received from the central route look-up table.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: August 12, 2003
    Assignee: McData Corporation
    Inventors: William J. Mitchem, John Retta
  • Compact, shared route lookup table for a fibre channel switch
    Publication number: 20030043834
    Abstract: A central route table design in a fiber channel switch for providing one location for D_ID and exit port combinations. The fiber channel switch has a plurality of ports, each are coupled to the central route look-up table.
    Type: Application
    Filed: August 17, 2001
    Publication date: March 6, 2003
    Inventors: William J. Mitchem, Jeffrey J. Nelson
  • Multi-rate shared memory architecture for frame storage and switching
    Publication number: 20030046496
    Abstract: Shared memory provides buffering and switching for all frames that flow through a fiber channel switch. Received frames are written to shared memory by the receiving port then read from shared memory by the transmitting port. Shared memory provides for data to be written to a buffer at one rate, and read from a buffer at a different rate, or vice versa.
    Type: Application
    Filed: August 17, 2001
    Publication date: March 6, 2003
    Inventor: William J. Mitchem
  • Route lookup caching for a fibre channel switch
    Publication number: 20030043816
    Abstract: A route caching design in a fiber channel switch for providing quick access to recently used D_ID and exit port combinations. The fiber channel switch has a plurality of ports, each are coupled to a central route look-up table. A cache is coupled to each port for storing D_ID to exit port association information received from the central route look-up table.
    Type: Application
    Filed: August 17, 2001
    Publication date: March 6, 2003
    Inventors: William J. Mitchem, John Retta