Patents by Inventor Terry N. Thomas

Terry N. Thomas 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).

  • Patent number: 4650930
    Abstract: High-speed bipolar signals transmitted along standard twisted pair telephone wiring are subject to InterSymbol Interference which is corrected by an equalizer circuit that is operably responsive to predetermined parameters of bipolar signals detected at the secondary of a line transformer. These parameters are input to a control logic circuit which includes several stages, each producing a set of past dependent logical control signals which are input to corresponding equalizer tap circuits having outputs connected to a common output bus. Each tap circuit includes an integrator that is incrementally charged and discharged by an electronically switched capacitor. A tap weight voltage output from each integrator is subsequently summed directly or inversely by a second switched capacitor under control of the logical input signals.
    Type: Grant
    Filed: February 13, 1985
    Date of Patent: March 17, 1987
    Assignee: Northern Telecom Limited
    Inventors: John G. Hogeboom, Terry N. Thomas, Dennis A. Yarak, Arlan J. Anderson