Patents by Inventor Celine Durand

Celine Durand 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).

  • Correlated spreading sequences for high rate non-coherent communication systems
    Patent number: 6990138
    Abstract: The invention relates notably to a method for modulating information symbols to be transmitted in a CDMA communication network by using a non-orthogonal modulation code comprising M spreading sequences (sm 1?m?M), each comprising in N chips (sm,n 1?n?N), the M spreading sequences having the same energy. According to the invention, the amplitude of the chips take a plurality of values the number M of spreading sequences is higher than the number of chips N per spreading sequence.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: January 24, 2006
    Assignee: Alcatel
    Inventors: Elie Bejjani, Celine Durand
  • Correlated spreading sequenes for high rate non-coherent communication systems
    Publication number: 20020097781
    Abstract: The invention relates notably to a method for modulating information symbols to be transmitted in a CDMA communication network by using a non-orthogonal modulation code comprising M spreading sequences (sm 1≦m≦M), each comprising in N chips (sm,n 1≦n≦N), the M spreading sequences having the same energy.
    Type: Application
    Filed: October 26, 2001
    Publication date: July 25, 2002
    Applicant: ALCATEL
    Inventors: Elie Bejjani, Celine Durand