Patents by Inventor Pierre Legaud

Pierre Legaud 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).

  • Local network using an electrical power distribution system and associated reflection device
    Patent number: 7183901
    Abstract: The invention concerns a local network for the transfer of information among several communication devices connected to an alternating current electrical power distribution system with a pre-determined frequency, the information conveyed in the local network being transferred in the form of electrical signals forming waves in the electrical power distribution system in a frequency band higher than the pre-determined frequency, the electrical power distribution system being connected to an electrical power supply system, characterized in that the local network comprises at least one wave reflection device forming reflected waves in the power distribution system and attenuating the waves of the power distribution network in the electrical power supply system. The invention also concerns the reflection device.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: February 27, 2007
    Assignee: France Telecom SA
    Inventor: Pierre Legaud
  • Local network using an electrical power distribution system and associated reflection device
    Publication number: 20040257731
    Abstract: The invention concerns a local network for the transfer of information among several communication devices connected to an alternating current electrical power distribution system with a pre-determined frequency, the information conveyed in the local network being transferred in the form of electrical signals forming waves in the electrical power distribution system in a frequency band higher than the pre-determined frequency, the electrical power distribution system being connected to an electrical power supply system, characterized in that the local network comprises at least one wave reflection device forming reflected waves in the power distribution system and attenuating the waves of the power distribution network in the electrical power supply system. The invention also concerns the reflection device.
    Type: Application
    Filed: April 7, 2004
    Publication date: December 23, 2004
    Inventor: Pierre Legaud