Patents by Inventor Albert T. Andrade

Albert T. Andrade 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).

  • Patent number: 5684973
    Abstract: An expandable memory system and a method for operating a memory system having a variable number of memory banks are described. The memory system can utilize a variable number of separately replaceable memory banks which can be implemented with memory element, such as dynamic random access memory chips, which are of differing speeds and or sizes. The memory system implements an interleaving of memory addresses among the memory banks as a function of the number of banks actually present so that successive memory accesses are not unnecessarily delayed by the recovery times of the memory elements. The memory system includes a programmable address decoder having a writable memory which provides bank address signals. Each of the banks includes a respective delay line for providing an output signal a respective presettable time after address signals are received by that bank for signalling to the host that data is ready to be transferred.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: November 4, 1997
    Assignee: Data General Corporation
    Inventors: Timothy J. Sullivan, Cynthia J. Burns, Albert T. Andrade, Ralph C. Frangioso, Jr.