Patents by Inventor Valuppilai Chandrakumar

Valuppilai Chandrakumar 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 transmitting information encoded in binary form by a train of solitons
    Patent number: 5608560
    Abstract: The method of transmitting a sequence of binary-coded information modulates the phase and the polarization of soliton pulses in such a manner that phase alternates between pairs of successive pulses, and the absolute value of the phase angle difference between two successive soliton pulses remains constant over the entire pulse train. The pulse train is transmitted by applying the method. Emission and reception apparatuses implement the method. The method is applicable to transmitting information over long distances.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: March 4, 1997
    Assignee: France Telecom
    Inventors: Izo Abram, Jean-Baptiste Thomine, Valuppilai Chandrakumar