Patents by Inventor Matthew Grant Fradley

Matthew Grant Fradley 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).

  • Transmitting communications signals over a power line network
    Patent number: 5977650
    Abstract: Communications signals are transmitted over a power distribution network. A plurality of communications stations which are coupled to the power lines are served by a base station. Communications signals are coupled between the base station and the distribution network, and the flow of the communications signals is controlled according to the station that it is desired to communicate with by preferentially transmitting along or receiving from a power line to which the desired communications station is coupled. The base station can be coupled to each of the power lines or to the busbars at a distribution station.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: November 2, 1999
    Assignee: Northern Telecom Limited
    Inventors: Robin Paul Rickard, Matthew Grant Fradley