Patents by Inventor Philip McKenzie

Philip McKenzie 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).

  • SYSTEM AND METHOD FOR POWER LINE CARRIER COMMUNICATION USING HIGH FREQUENCY TONE BURSTS
    Publication number: 20080278295
    Abstract: A communication system and method is utilized to communicate data over an AC power line. Tone burst are superimposed on an AC power signal at predetermined voltage reference levels or at predetermined phase angles to represent bit values. These bit values are represented by either the presence or the absence of the tone burst on the AC power signal. In this manner, control information can be communicated to an apparatus, such as a ballast for a gas discharge lamp.
    Type: Application
    Filed: November 27, 2007
    Publication date: November 13, 2008
    Inventors: Philip McKenzie, James Koehler