Patents by Inventor Alan J. Nash

Alan J. Nash 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).

  • Memory addressing system using first and second address signals and modifying second address responsive predetermined values of first address signal
    Patent number: 5117492
    Abstract: A computer has a pageable memory which comprises a plurality of memory units each made up of a plurality of blocks of addressable memory locations. A designated one of the blocks is required to be accessed in combination with the remainder of the blocks. Logic circuits are responsive to first and second groups of address bits to generate signals which enable a selected one of the memory units and access a selected one of the blocks on the selected unit. The designated block is accessed directly by one of the aforesaid groups of address bits.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: May 26, 1992
    Assignee: Lucas Industries Public Limited Company
    Inventor: Alan J. Nash