Patents by Inventor Alan B. Davison

Alan B. Davison 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 system wherein individual bits may be updated
    Patent number: 4339804
    Abstract: A memory system having a word-addressable memory and bit changing circuitry for changing or updating individual bits within the data words stored in the memory. The memory includes a primary memory and a copy memory. The copy memory stores duplicates of the data words stored in the primary memory. The bit changing circuitry receives a word having a bit to be changed from the copy memory and returns the word, including the changed bit, to both the primary memory and copy memory.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: July 13, 1982
    Assignee: NCR Corporation
    Inventors: Alan B. Davison, Wayne J. Lewis