Patents by Inventor Marek S. Pierkarski

Marek S. Pierkarski 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).

  • Method for bootstrap loading in a data processing system comprising searching a plurality of program source devices for a bootstrap program if initial data indicating a bootstrap program source device fails a validity check
    Patent number: 5247659
    Abstract: A data processing system comprises a plurality of processing modules, and a central services module, connected by a system bus. Details of the expected system configuration and of a normal bootstrap load path are held in a non-volatile store. On power-up or system restart, the non volatile store is tested. If the test is satisfactory, a defined bootstrap procedure is executed; otherwise an undefined bootstrap procedure is performed. The defined bootstrap procedure compares the expected configuration with the actual system configuration. If they match, the bootstrap program is loaded from the normal load path. If they do not match, the undefined bootstrap procedure may be entered. In the undefined bootstrap procedure, the central services module searches for possible bootstrap load paths and attempts a load from one of these paths. The defined bootstrap is expected to be the normal procedure, and is faster.
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: September 21, 1993
    Assignee: International Computers Limited
    Inventors: Michael W. B. Curran, Marek S. Pierkarski, Richard N. Taylor