Patents by Inventor Paul John Johnsen

Paul John Johnsen 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).

  • Enhanced reset and built-in self-test mechanisms for single function and multifunction input/output devices
    Patent number: 6073253
    Abstract: An apparatus, system and method permitting a variety of reset procedures and corresponding reset states. A device reset control register is provided for each I/O device adapter in single function or multifunction devices. The device reset control registers permit a greater degree of control over single function devices, multifunction device as a whole and individual device functions within a multifunction device. A device immediate status register synchronizes the various reset procedures. A logical power on reset procedure, a directed unit reset procedure and a directed interface reset procedure utilize the greater degree of control that the device reset control registers provide to force the I/O device adapter, single function device or multifunction device into a corresponding logical power on reset state, a directed unit reset state or a directed interface reset state.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: June 6, 2000
    Assignee: International Business Machines Corporation
    Inventors: Gregory Michael Nordstrom, Shawn Michael Lambeth, Paul Edward Movall, Daniel Frank Moertl, Charles Scott Graham, Paul John Johnsen, Thomas Rembert Sand