Patents by Inventor Douglas T Hayden

Douglas T Hayden 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).

  • Publication number: 20120016950
    Abstract: A method for managing bandwidth allocation in a storage area network includes receiving a plurality of Input/Output (I/O) requests from a plurality of client devices, determining a priority of each of the client devices relative to other client devices, and dynamically allocating bandwidth resources to each client device based on the priority assigned to that client device.
    Type: Application
    Filed: September 27, 2011
    Publication date: January 19, 2012
    Inventors: Randall E. Messick, Richard L. Peterson, Martin L. Ackerman, Michael E. Lutz, Douglas T. Hayden
  • Patent number: 8060643
    Abstract: A method for managing bandwidth allocation in a storage area network includes receiving a plurality of Input/Output (I/O) requests from a plurality of client devices, determining a priority of each of the client devices relative to other client devices, and dynamically allocating bandwidth resources to each client device based on the priority assigned to that client device.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: November 15, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Randall E. Messick, Richard L. Peterson, Martin L. Ackerman, Michael E. Lutz, Douglas T. Hayden
  • Publication number: 20040044770
    Abstract: A method for managing bandwidth allocation in a storage area network includes receiving a plurality of Input/Output (I/O) requests from a plurality of client devices, determining a priority of each of the client devices relative to other client devices, and dynamically allocating bandwidth resources to each client device based on the priority assigned to that client device.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 4, 2004
    Inventors: Randall E. Messick, Richard L. Peterson, Martin L. Ackerman, Michael E. Lutz, Douglas T. Hayden
  • Patent number: 6230276
    Abstract: A battery powered device using a method for efficiently supplying operational power to a measurement system for brief periods of time for the purpose of maximizing battery life while minimizing circuit size and cost is described. The device employs a highly integrated, low power consumption microcontroller with general purpose output port pins whose logic level is under control of a software program. The microcontroller output pins contain substantial series impedance to the power supplying or power returning terminal which prohibits significant current delivery through the port pin and therefore normally limits the use of such output pins to setting a digital signal status into other logic circuitry. Also contained within the device is a differential voltage comparator being used as a measurement system which requires a substantial supply current to operate.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: May 8, 2001
    Inventor: Douglas T Hayden