Patents by Inventor James Randall Thomas

James Randall Thomas 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).

  • Addressing multiple removable memory modules by remapping slot addresses
    Patent number: 5802544
    Abstract: The present invention provides a computer system supporting multiple, removable ROM-based applications without requiring the ROM-applications to be inserted into a particular slot. The computer system accepts one or more cartridges into any combination of slots. Once a cartridge is inserted into a slot, the computer system senses the insertion of a cartridge. The computer system then determines whether to swap the address ranges associated with the cartridge connectors, or slots. The address swap is implemented by either (i) swapping the cartridge connector chip selects or (ii) performing a page swap with the memory management unit.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: September 1, 1998
    Assignee: International Business Machines Corporation
    Inventors: James Lee Combs, Herman Rodriguez, James Alan Strothmann, James Randall Thomas