Patents by Inventor Florence Chancel

Florence Chancel 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 for detecting a discrete symbol sequence from an observation signal, and viterbi processor implementing such method
    Patent number: 6389574
    Abstract: The detection of symbols of a sequence on the basis of an observation signal is performed in accordance with a soft output Viterbi algorithm using a trellis. In order to assign a likelihood to a discrete estimation of a symbol, the difference between the metrics of the optimal path determined in accordance with the Viterbi algorithm and the metrics of a competitor path, which is optimal among all the paths leading to a different decision for the symbol in question is calculated, the metrics being considered on the whole length of the trellis.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: May 14, 2002
    Assignee: Matra Nortel Communications
    Inventors: Fabrice Belveze, Florence Chancel