Patents by Inventor Raphael J. S. Roux

Raphael J. S. Roux 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).

  • Four wire to two wire converter
    Patent number: 4387277
    Abstract: The connecting device according to the present invention comprises for a two wire to four wire converter which connects the reception channel of a private network to the public network via an amplifier, whose symmetrical outputs are connected to the public network by capacitors, the gain loss due to these capacitors being compensated by a second amplifier. For the transmission channel a third amplifier has inputs connected to the public network by capacitors and an output connected to one input of a fourth amplifier, whose other input is connected by a phase shifting network to the reception channel.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: June 7, 1983
    Assignee: Thomson-CSF Telephone
    Inventors: Bernard Gilles, Jose A. Paulet, Raphael J. S. Roux