Patents by Inventor William L. Prugh

William L. Prugh 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).

  • System using an adapter board to couple a personal computer to a plurality of peripherals in a financial environment
    Patent number: 4787027
    Abstract: A financial system includes a plurality of peripherals like a magnetic stripe reader, printer, and keyboard which are coupled to a personal computer by an adapter board which is inserted into an interface bus within the computer. Even though the financial application being run may be single tasking, the system is capable of running multi-tasking operations. An encryptor/decryptor processor, which is used in handling secure data, is located on the adapter board to minimize unauthorized access to the secure data.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: November 22, 1988
    Assignee: NCR Corporation
    Inventors: William L. Prugh, Tom R. Deaton, Henry G. Cooney