Patents by Inventor Theodore Allen Gary

Theodore Allen Gary 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).

  • Adaptive interface apparatus and method for data terminal elements in a communication network transmitting and receiving ethernet over a shielded twisted pair cabling system
    Patent number: 6332166
    Abstract: An adaptive interface and method of operation facilitate connection of a work station in a Local Area Network (LAN) using Shielded Twisted Pair (STP) cabling to an Ethernet 10/100BASE TX installation using Unshielded Twisted Pair (UTP). The work station is coupled through the adaptive interface to the STP cabling system emulating a given number of meters of UTP cabling. The interface adapter comprises at one end a RJ 45 connector adapted for connection to the STP cabling and at the other end a MIC_S token ring connector coupled to an Ethernet adapter through the STP cabling system. The adaptive interface includes programmatically controlled filters interconnecting the RJ 45 and MIC_S connectors. The filter comprises a series of 1 . . . N switchable lumped passive element units which can be sequentially connected into the STP cabling to emulate the amplitude attenuation and phase shift of a preselected length of UTP 5 cabling, typically in the range of 20 meters.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: December 18, 2001
    Assignee: International Business Machines Corporation
    Inventors: Hayden Clavie Cranford, Jr., Joseph Ronald Efferson, Jr., Theodore Allen Gary, Steven Howard Johnson, Gregg Kreielsheimer, Mark Edmund Scheuer