Patents by Inventor Nancy L. Springen

Nancy L. Springen 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).

  • Device driver and adapter binding technique
    Patent number: 4649479
    Abstract: An operating system in a digital computer environment is run as a virtual machine on a virtual resource manager. In order to provide a more dynamic environment for the operating system, linkages are made between the operating system device drivers and the corresponding real and virtual devices of the virtual resource manager. This is accomplished by assigning a "token" to the virtual resource manager. A device dependent information file corresponding to the device is created. This file contains adapter dependent information including a hardward port address for the physical device. The "token" is placed in the operating system device driver at the time it is initiated. When the operating system device driver is "opened" to drive the device, it uses the "token" to communicate with the virtual resource manager device driver thereby accomplishing driver to driver binding.
    Type: Grant
    Filed: February 28, 1985
    Date of Patent: March 10, 1987
    Assignee: International Business Machines Corp.
    Inventors: Hira Advani, Larry K. Loucks, Nancy L. Springen
  • Device driver and adapter binding technique
    Patent number: RE36394
    Abstract: An operating system in a digital computer environment is run as a virtual machine on a virtual resource manager. In order to provide a more dynamic environment for the operating system, linkages are made between the operating system device drivers and the corresponding real and virtual devices of the virtual resource manager. This is accomplished by assigning a "token" to the virtual resource manager. A device dependent information file corresponding to the device is created. This file contains adapter dependent information including a hardward port address for the physical device. The "token" is placed in the operating system device driver at the time it is initiated. When the operating system device driver is "opened" to drive the device, it uses the "token" to communicate with the virtual resource manager device driver thereby accomplishing driver to driver binding.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: November 16, 1999
    Assignee: International Business Machines Corporation
    Inventors: Hira Advani, Larry K. Loucks, Nancy L. Springen