Patents by Inventor James R. Nieling

James R. Nieling 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).

  • Maintenance interface for a service processor-central processing unit computer system
    Patent number: 4268902
    Abstract: A maintenance interface is provided for interfacing a service processor and a central processing unit operating asynchronously to each other. The maintenance interface includes circuitry for synchronizing the service processor to the central processing unit and decode circuitry for interpreting commands from the service processor. The maintenance interface also includes circuitry responsive to control signals from the central processing unit such that the maintenance interface establishes communication between the service processor and the central processing unit. The central processing unit includes a microprocessor for interpreting data sent between the service processor and the central processing unit. The maintenance interface is responsive to control signals from the central processing unit to resolve communication contention between the central processing unit and the service processor.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: May 19, 1981
    Assignee: International Business Machines Corporation
    Inventors: Neil C. Berglund, James R. Nieling