Patents by Inventor Douglas J. Kuligowski

Douglas J. Kuligowski 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).

  • Transparent extension of peripheral from host
    Patent number: 5588140
    Abstract: A system for extending a communications link between a host computer and peripheral device provides true emulation of the peripheral data storage device. The system includes a host extender for communicating directly with the host computer and a peripheral extender for communicating directly with the peripheral device. The host attached and peripheral extenders communicate across the extended communications link. The host extender initially transmits a channel program to the peripheral extender. The system uses the channel program to obtain format information of a particular track of the peripheral device. The host extender stores this format information and uses it to emulate the peripheral device to the host computer.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: December 24, 1996
    Assignee: Computer Network Technology Corporation
    Inventors: Eugene D. Misukanis, John H. Long, Lawrence A. Dean, Douglas J. Kuligowski