Patents by Inventor Quentin H. Stephenson

Quentin H. Stephenson 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 for enabling first computer to communicate over switched network with second computer located within LAN by using media access control driver in different modes
    Patent number: 5630061
    Abstract: A plurality of media access control drivers are coupled to and provide a respective channel to connect a computer and the switched network. Each media access control driver has a first mode in which a connection is established in the switched network and a second mode in which the local area network protocol is passed over the switched network. The media access control drivers may also be placed in a third and fourth mode which allow communication in an unformatted and non-LAN based protocol. The architecture also includes at least one port connection manager which manages one of the channels when the respective media access control driver is in the first mode and a connection manager to manage a status of the connection. The media access control drivers are coupled to a protocol driver to send messages in the local area network protocol when the media access control drivers are in the second mode.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: May 13, 1997
    Assignee: International Business Machines Corporation
    Inventors: Roger K. Richter, Robert O. Sharp, Quentin H. Stephenson