Patents by Inventor Michel Mazzella

Michel Mazzella 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).

  • Method of handing off traffic in a low orbit satellite communication system serving terminals and communication system using a method of this kind
    Patent number: 6038447
    Abstract: In a method of handing off traffic in a low orbit satellite communication system serving terminals, a terminal being connected to a terrestrial communication network by means of a connection station, handing off of the satellite-terminal and satellite-connection station links is possible only within a particular area. The decision to hand off the traffic is based on deterioration of the quality of service and of the radio environment for a group of terminals of said area. The system for implementing this method includes transmit/receive terminals and terrestrial connection stations.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: March 14, 2000
    Assignee: Alcatel Espace
    Inventors: Denis Rouffet, Frederic Berthault, Michel Mazzella, Yannick Tanguy
  • Low-orbit satellite communications system for terminals
    Patent number: 5668556
    Abstract: The present invention relates to a communications system between low-orbit satellites and terminals, in which the beams (12) of each service area (14) are illuminated according to a beam-hopping spatial scanning. For each satellite and for each terminal transmission and reception are separated in time and synchronized. Time-division duplex is used. Applicable especially to the field of space telecommunications.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: September 16, 1997
    Assignee: Alcatel Espace
    Inventors: Denis Rouffet, Frederic Berthault, Michel Mazzella, Yannick Tanguy
  • Method of handing off traffic in a low orbit satellite communication system serving terminals and communication system using a method of this kind
    Patent number: 5625867
    Abstract: In a method of handing off traffic in a low orbit satellite communication system serving terminals, a terminal being connected to a terrestrial communication network by means of a connection station, handing off of the satellite-terminal and satellite-connection station links is possible only within a particular area. The decision to hand off the traffic is based on deterioration of the quality of service and of the radio environment for a group of terminals of said area. The system for implementing this method includes transmit/receive terminals and terrestrial connection stations.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: April 29, 1997
    Assignee: Alcatel Espace
    Inventors: Denis Rouffet, Frederic Berthault, Michel Mazzella, Yannick Tanguy