Patents by Inventor Serge Fontana

Serge Fontana 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).

  • Time division exchange and a method for the reconfiguration of this exchange
    Patent number: 4071702
    Abstract: The invention relates to time-division exchanges in which the connection between the subscribers is established successively in time at the same rate as a sampling of telephone signals. It consists in offering to each subscriber circuit two incoming channels and two outgoing channels, the choice between which is made by a memory comprising an additional bit reserved for this choice.
    Type: Grant
    Filed: February 20, 1976
    Date of Patent: January 31, 1978
    Assignee: Thomson-CSF
    Inventors: Pierre Charransol, Jacques Hauri, Serge Fontana