Patents by Inventor Erwan Launay

Erwan Launay 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).

  • Patent number: 7319727
    Abstract: A method is provided for receiving a multicarrier signal in a receiver implementing at least two distinct reception channels. After receiving the multicarrier signal during a first step, and in order to optimize subsequent processing (such as synchronization, confidence computing, . . . ), information representing the reception quality is associated to each corresponding reception channel during a second step. An embodiment of the disclosure relies on a new way of computing this information, called absolute confidence, which takes account on the one hand of the reception quality of the considered channel compared to the other channels (total confidence) and on the other hand of the reception quality of each source data (carrier) compared to the others, in the considered channel (relative confidence), to determine an absolute confidence for each data of each channel.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: January 15, 2008
    Assignee: Telediffusion de France
    Inventors: Gabriel Degoulet, Erwan Launay, Bertrand Sueur
  • Patent number: 7120212
    Abstract: The invention relates to a reception device implementing at least two reception paths supplied with data flows, each conveying the same source symbols, each of said paths comprising estimation means, associating, with each source symbol received, an estimated path value and a corresponding path confidence information element, and comprising means for the combination of said estimated path values into an adapted estimated value, said combination taking account of said path confidence information elements to weight said estimated path values. Said estimation means advantageously comprises means for the estimation of the transmission channel, delivering said path confidence information elements. Said combination means may advantageously associate an adapted confidence information element with each of said adapted estimated values, as a function of said path confidence information elements.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: October 10, 2006
    Assignees: Telediffusion de France, France Telecom
    Inventors: Erwan Launay, Bertrand Sueur
  • Publication number: 20040240576
    Abstract: The invention relates to a method for the reception of a multicarrier signal formed by a plurality of carrier frequencies, implementing at least two reception channels supplied with data streams, each of said channels conveying the same source data, each of said channels associating an estimated channel value and a corresponding piece of information on channel confidence with each piece of source data received, to feed combination means followed by decoding means. The method implements a processing operation that takes account of at least one piece of information representing the reception quality on each of said channels, to optimise at least one step of said reception.
    Type: Application
    Filed: July 16, 2004
    Publication date: December 2, 2004
    Inventors: Gabriel Degoulet, Erwan Launay, Bertrand Sueur