Patents by Inventor Michael C. Nystrom

Michael C. Nystrom 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).

  • Bus contention circuit
    Patent number: 4454581
    Abstract: A bus contention circuit, is employed for each unit of a system capable of seizing use of a bus, wherein the units are arranged in a priority order. Priority resolution is accomplished by registering a request to seize use of the bus from any unit where either (1) no other requests are so registered or (2) the requesting unit is of lower priority than a unit whose request is already registered. When the bus becomes available for use, use is allocated to the unit with highest priority whose request is already registered.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: June 12, 1984
    Assignee: Control Data Corporation
    Inventor: Michael C. Nystrom