Patents Represented by Attorney, Agent or Law Firm Lee, Minn, Smith, McWilliams, Sweeney and Ohlson
  • Patent number: 6317031
    Abstract: An Apparatus for extracting communications signals from power lines, which lines are arranged such that leakage of signals occurs between them. The apparatus receives a signal from each of at least two of lines (blue, red, yellow) and combines the received signals so as to increase the ratio of wanted signal to interference plus noise S/(1+N). Preferably the combining is achieved by weights WB, WR, WY and a summer. The weights phase shift and scale the received signals in amplitude. The apparatus can also be used for transmitting in the downstream direction.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: November 13, 2001
    Assignee: Nortel Networks Limited
    Inventor: Robin Paul Rickard