Patents by Inventor John Iannarone

John Iannarone 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).

  • FDDI concentrator with backplane port for dual datapath systems
    Patent number: 5420986
    Abstract: A concentrator which is used alone or in conjunction with one or more identical concentrators provides a set of externally configurable datapaths for connecting other devices connected to a backplane with primary and/or secondary rings in a token ring network. The concentrator includes a controller, a plurality of multiplexers and several front panel and backplane ports, each of which is configurable as an A, B, M or S port. The concentrator includes an internal token ring chain of one or more front panel ports for connecting other devices to the rings.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: May 30, 1995
    Assignee: Digital Equipment Corporation
    Inventors: Christopher Baldwin, John Iannarone