Patents Assigned to Franc Telecom
  • Method of estimating the focusing quality of a signal pre-equalized by time reversal
    Patent number: 8451181
    Abstract: A method is provided for estimating the focusing quality of a signal pre-equalized by time reversal of an estimated propagation channel between a source antenna of a source communicating entity and a destination antenna of a destination communicating entity, the method comprising a step of evaluating a focusing quality of the signal received at the destination antenna relative to a value at a focal point of a representation of a curve of received power as a function of a distance between the destination antenna and the focal point.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: May 28, 2013
    Assignee: France Telecom
    Inventors: Dinh Thuy Phan Huy, Joe Wiart, Youmni Ziade, Jean-Philippe Desbat
  • Method of receiving a data packet coming from an IPv4 domain in an IPv6 domain, an associated device, and associated access equipment
    Patent number: 8451844
    Abstract: A method of receiving a data packet from an IPv4 domain in an IPv6 domain, the data packet comprising an IPv4 destination address and a destination port number. The method comprises the following steps: constructing an IPv6 destination address by concatenating an operator prefix, the IPv4 destination address, and the destination port number; generating an IPv6 data packet from the IPv6 constructed destination address and the received IPv4 data packet; and routing the generated IPv6 data packet in the IPv6 domain using the IPv6 constructed destination address, the constructed address belonging to a range of IPv6 addresses routable to an interconnection equipment of the IPv6 domain with the IPv4 destination address.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: May 28, 2013
    Assignee: France Telecom
    Inventors: Mohamed Boucadair, Jean-Luc Grimault
  • Method of receiving a data packet in an IPv6 domain, an associated device and an associated home gateway
    Patent number: 8451845
    Abstract: A method of receiving an IPv6 data packet in an IPv6 domain connected to an IPv4 domain, said packet comprising an IPv6 destination address and an IPv6 source address. The method comprises the following steps: identifying an IPv6 destination address constructed by concatenating an operator prefix, an IPv4 destination address, and a destination port number; if necessary, regularizing at least one address of the data packet and modifying the data packet; and routing the modified data packet to its destination.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: May 28, 2013
    Assignee: France Telecom
    Inventors: Mohamed Boucadair, Jean-Luc Grimault
  • Unit and method for managing at least one channel in an access session for accessing a service in a network
    Patent number: 8438255
    Abstract: A management unit for managing a channel in a telecommunications network includes a registering section configured to define and register a visibility attribute associated with a first channel, belonging to a first session, for accessing a service in the telecommunications network. A receiving section is configured to receive a request to obtain information on the first channel from a second channel. The second channel belongs to the first session or a second session for accessing the service. A sending section is configured to determine and send a response to the request to obtain information on the first channel, taking into account the visibility attribute associated with the first channel, and further taking into account whether the second channel belongs to the first session or the second session.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: May 7, 2013
    Assignee: France Telecom
    Inventors: Jean-François Gyss, Eric Paillet, Vincent Teze
  • Methods for transmitting and receiving a multicarrier spread-spectrum signal, corresponding signal, computer program products and transmission and reception devices
    Patent number: 8432951
    Abstract: A method and apparatus are provided for transmitting a multicarrier spread-spectrum signal formed by a temporal succession of multicarrier symbols, using OQAM modulation and a plurality of inter-orthogonal spreading codes. The method includes spreading at least one complex-value data symbol, representative of a source data signal to be transmitted, over a set of sub-carriers of at least one multicarrier symbol, each of the sub-carriers modulating a complex value.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: April 30, 2013
    Assignee: France Telecom
    Inventors: Chrislin Lele, Pierre Siohan, Rodolphe Legouable, Maurice Bellanger
  • Method of communication, emitter and receiver stations and associated computer programs
    Patent number: 8433353
    Abstract: Method of communication, on a radio channel in a network comprising a plurality of telecommunications nodes with which are associated respective values of a metric, including emitting, from a first node, a request on the radio channel, and subsequent to the receipt of the request by at least one second node, emitting a response message with a delay determined as a function of the metric value associated with said second node.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: April 30, 2013
    Assignee: France Telecom
    Inventors: Thomas Watteyne, Abdelmalik Bachir, Michael Dohler, Isabelle Auge-Blum
  • METHOD AND DEVICE FOR DETECTING ACOUSTIC SHOCKS
    Publication number: 20130101124
    Abstract: A method and device are provided for detecting acoustic shocks in an audio stream. The method includes: breaking down the audio stream into audio frames; analyzing the audio frames in order to assign each audio frame a category value from among a plurality of predefined values; and determining the probability of an acoustic shock occurring in a current frame, based on a sequence of a given length of category values assigned to a set of frames, using a two-state Markov model, defined by a predetermined transition matrix and transmission matrix.
    Type: Application
    Filed: June 17, 2011
    Publication date: April 25, 2013
    Applicant: France Telecom
    Inventors: Julien Faure, Alexandre Guerin, Claude Marro
  • Burn-in system for multicast data transmission
    Patent number: 8427994
    Abstract: A system for improving the reliability of transmission of multibroadcast data between a source of data and a plurality of customer receivers of the data via a telecommunications network. The system includes a supervision server adapted to provide each customer receiver with a list of at least one other receiver, said customer receiver being adapted to receive missing data from said the other customer receiver via a reliable peer-to-peer connection.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: April 23, 2013
    Assignee: France Telecom
    Inventors: David Dugoujon, Laurent Rabret, Gerard Babonneau
  • PROCESSING DATA FOR ENCODING AND DECODING A MESSAGE
    Publication number: 20130094691
    Abstract: Processing data for encoding and decoding a message transmitted through a communication channel having adjacent information known during the encoding, the encoding method comprising the construction of a surjective correcting code produced from a characterization of the adjacent information in a system of spherical coordinates.
    Type: Application
    Filed: June 17, 2011
    Publication date: April 18, 2013
    Applicant: France Telecom
    Inventors: Gaëtan Le Guelvouit, Sophie Boutiton
  • Device and method for managing communication credits associated to use of services by a terminal
    Patent number: 8422652
    Abstract: This client device (20) is able to use a service on a telecommunications network (1). It includes means (21) for storing a call credit (C_S1, C_S2) associated with that service and means (30) for updating that credit as a function of the use of that service by the client (20) on reception of a request from a service provider (FS1, FS2).
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: April 16, 2013
    Assignee: France Telecom
    Inventors: Hervé Bouvier, Jacques Lecourvoisier, Julien Grosso
  • Method for sending and receiving a signal in a multiple-antenna system implementing spatial pre-encoding, corresponding sender, receiver and computer program products
    Patent number: 8422582
    Abstract: A method and apparatus are provided for emitting and receiving a signal in a multi-antennae system, using spatial precoding. A method for emitting a signal from an emitter towards a receiver via a transmission channel, in the form of a set of data flows, includes distributing the emission antennae into a plurality of groups containing at least one antenna, at least one group containing two antennae, according to at least one piece of information representing the transmission channel. The method also includes: attributing an efficiency to each emission antenna; allocating an emission power to each data flow; and spatial precoding the signal, using a matrix for diagonal precoding by blocks, containing at least two blocks, each block being associated with one of the groups of antennae.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: April 16, 2013
    Assignee: France Telecom
    Inventors: Patricia Layec, Raphael Visoz, Antoine Berthet
  • System and method for processing images by visual echo cancellation
    Patent number: 8421843
    Abstract: This image processing system comprises: a device (PRJ, SI1) for projecting a first light beam (FL1) to form a first image (I1) on a screen (ECR) on which a second light beam (FL2) coming from an observation area (ZO) forms a second image (I2) and a device (CAM, SI1) for acquiring a third image (I3) formed on the screen (ECR) and corresponding to the superimposition of the second image (I2) and at least a portion (I1?) of the first image (I1). This system further comprises control means (CTR) for: obtaining a first signal (S1) representing the portion (I1?) of the first image (I1), obtaining a second signal (S2) representing the third image (I3), and calculating a third signal (S3) by subtracting at least part of the first signal (S1) from the second signal (S2) to form an image (I2?) representing the observation area (ZO).
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: April 16, 2013
    Assignee: France Telecom
    Inventor: Olivier Gachignard
  • Device and method for scalable encoding and decoding of image data flow and corresponding signal and computer program
    Patent number: 8422805
    Abstract: A method of coding an image or a sequence of images generating a flow of data in the form of groups of blocks, at least one group of blocks containing image blocks having a resolution and a quality level of identical quantification, the method including the following steps for the at least one group of blocks, of a) a first coding so that each block of the at least one group of blocks has at least one associated parameter that is given a first value, and b) a second coding for giving the associated parameter for at least one block of the at least one group of blocks a second value, so that for the at least one block, the first and second values given for the parameter can be combined during decoding to provide a value assigned to the parameter.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: April 16, 2013
    Assignee: France Telecom
    Inventors: Isabelle Amonou, Stephane Pateux, Sylvain Kervadec, Nathalie Cammas
  • Reconfiguration of network termination devices
    Patent number: 8416816
    Abstract: A method enables communication between a line termination device and at least one network termination device, the line termination device being connected by at least one line to the at least one network termination device. The method includes a step in which frames containing content data are transmitted by the line termination device via the line to at least one of the at least one network termination devices. Reconfiguration data is sent by the line termination device to at least one of the network termination devices, the reconfiguration data being specific to a communication protocol to be used for the transmission of the above-mentioned frames and enabling the reconfiguration of a modem of the destination network termination device.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: April 9, 2013
    Assignee: France Telecom
    Inventor: Fabrice Bourgart
  • Attenuation of overvoicing, in particular for the generation of an excitation at a decoder when data is missing
    Patent number: 8417520
    Abstract: The invention proposes the synthesis of a signal consisting of consecutive blocks. It proposes more particularly, on receipt of such a signal, to replace, by synthesis, lost or erroneous blocks of this signal. To this end, it proposes an attenuation of the overvoicing during the generation of a signal synthesis. More particularly, a voiced excitation is generated on the basis of the pitch period (T) estimated or transmitted at the previous block, by optionally applying a correction of plus or minus a sample of the duration of this period (counted in terms of number of samples), by constituting groups (A?,B?,C?,D?) of at least two samples and inverting positions of samples in the groups, randomly (B?,C?) or in a forced manner. An over-harmonicity in the excitation generated is thus broken and the effect of overvoicing in the synthesis of the generated signal is thereby attenuated.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: April 9, 2013
    Assignee: France Telecom
    Inventors: David Virette, Balazs Kovesi
  • Synthesis of lost blocks of a digital audio signal, with pitch period correction
    Patent number: 8417519
    Abstract: The present invention relates to signal modification before pitch period repetition for the synthesis of blocks lost on decoding digital audio signals. The effects of repetition of transitories, such as the plosives of a speech signal, are avoided by comparing the samples of a pitch period with those of the previous pitch period. The signal is modified preferentially by taking the minimum between a current sample (e(3)) of the last pitch period (Tj) and at least one sample (e(2?T0) of approximately the same position in the previous pitch period (Tj?1).
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: April 9, 2013
    Assignee: France Telecom
    Inventors: Balazs Kovesi, Stéphane Ragot
  • Control of radio cell activity
    Patent number: 8417250
    Abstract: A cellular network includes a first cell management entity adapted for managing a first radio cell that can be in an active or inactive state, a second cell management entity adapted for managing at least a second radio cell, and at least one control entity adapted for controlling the first cell management entity, wherein said first and second radio cells at least partially overlap each other geographically. At the control entity, a piece of presence information is obtained concerning the presence of at least one terminal in a radio neighboring area of the first cell. An activity state of the first cell is then decided on the basis of the piece of presence information, the radio neighboring area of the first cell including at least the second cell.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: April 9, 2013
    Assignee: France Telecom
    Inventors: Yannick Bouguen, François-Xavier Wolff
  • Processing of bit errors in a digital audio bit frame
    Patent number: 8418032
    Abstract: The invention relates to a method of processing bit errors in a bit frame emanating from a digital audio coder, comprising a step of receiving a current bit frame liable to comprise bit errors. According to the invention, the bit frame comprises sensitive bits to be protected which are catalogued in at least one category according to the type of parameter that they code and the method furthermore comprises the steps of receiving protection bits, of reading the sensitive bits received in the current bit frame, the number of sensitive bits being lower than the number of bits of the bit frame, of detecting bit errors as a function of said protection bits received and of said sensitive bits received and in the event of detecting at least one erroneous bit in said bit frame, of modifying the current bit frame before decoding, as a function of the category in which the erroneous bit is catalogued.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: April 9, 2013
    Assignee: France Telecom
    Inventors: Balazs Kovesi, Stéphane Ragot
  • Method and a device for generating a pseudorandom string
    Patent number: 8416951
    Abstract: The invention relates to a method of generating a pseudorandom string of terms belonging to a finite body K of cardinal q?2 intended to be used in a cryptography procedure, said method comprising the iterative calculation of a system (?) of m polynomials with n variables belonging to the finite body K. According to the invention, the coefficients of these m polynomials are regenerated at each iteration. The invention also relates to pseudorandom string generator intended to implement this method.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: April 9, 2013
    Assignee: France Telecom
    Inventors: Olivier Billet, Henri Gilbert, Côme Berbain
  • Method and Device for Consulting a Voice Message
    Publication number: 20130083907
    Abstract: A method for consulting a voice message received and a method for providing a compounded voice message. The compounded voice message is composed of at least one first and one second voice component and is associated with a group of items of information relating to the voice components. The method for consultation includes reading at least one voice component of the voice message, detecting at least one user interaction concomitant upon the reading of the at least one voice component, sending at least one signal relating to the interaction detected, and receiving a command of an action to be performed relating to a voice component read from the voice message and to at least one item of information of the group of items of information associated with the voice message. Also provided is a device implementing the method for consulting a compounded voice message.
    Type: Application
    Filed: September 27, 2012
    Publication date: April 4, 2013
    Applicant: France Telecom
    Inventor: France Telecom