Patents by Inventor Ernesto Rey

Ernesto Rey 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: 4493075
    Abstract: A large scale memory system that can use devices with some defective memory cells in them since bad cells and bad devices are recorded in a separate permanent memory that accompanies the system. The permanent memory is continuously referred to so as to avoid defective cells during accessing. Spare devices are automatically incorporated in the system, as needed, to facilitate self repairing.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: January 8, 1985
    Assignee: National Semiconductor Corporation
    Inventors: James M. Anderson, Thomas S. Knight, III, Dennis T. Kitagawa, Ernesto Rey