Patents by Inventor James J. LaForest

James J. LaForest 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).

  • Power line carrier noise elimination
    Patent number: 4130861
    Abstract: A method and apparatus are provided for eliminating noise signals from power transmission lines utilized for transmitting information signals in power line carrier systems. Use is made of the principle that signals transmitted line-to-ground are more severely attenuated than signals transmitted line-to-line. Capacitive impedance is selectively added to the system to effect coupling of the noise signals to the transmission lines in a line-to-ground mode.
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: December 19, 1978
    Assignee: General Electric Company
    Inventor: James J. LaForest