Patents Assigned to Franc Telecom
  • Patent number: 8600530
    Abstract: A method of determining a spatial coding mode for audio data sent by a sender entity (20) to a receiver terminal (10) adapted to receive said audio data in one or more sound reproduction formats. The method comprises the steps of the receiver terminal (10) indicating (1) to the sender entity (20) said reproduction format(s) in a given order of preference and the sender entity (20) determining a mode of spatial coding of the audio data compatible with a reproduction format taken in the order of preference and indicating (2) said reproduction format to the receiver terminal (10). Application to Voice over IP services.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: December 3, 2013
    Assignee: France Telecom
    Inventors: Arnault Nagle, Auréllen Sollaud, Manuel Briand
  • Patent number: 8599680
    Abstract: A method and apparatus are provided for configuring a virtual circuit set up between a first and a second terminal installation. The virtual circuit is carried by an underlying path including a first link set up between the first terminal installation and an intermediate installation, and a second link set up between the intermediate installation and the second terminal installation. A third link of the underlying path is set up between the intermediate installation and a third terminal installation. The method includes a step of configuring the third terminal installation, on completion of which the latter is able to process in reception a data stream transmitted through the virtual circuit.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: December 3, 2013
    Assignee: France Telecom
    Inventors: Frédéric Jounay, Jean-Louis Le Roux
  • Patent number: 8601041
    Abstract: A method of generating a pseudorandom sequence of terms belonging to a finite body K of cardinal q?2 intended to be used in a cryptographic procedure, said method comprising the iterative calculation, from an initialization n-tuple X(0)=(X(0)1, X(0)2, . . . , X(0)n), where n?2, of elements of K, of n-tuples X(i)=(X(i)1, X(i)2, . . . , X(i)n) of elements of K (where i=1, 2, . . . ), each n-tuple X(i) being obtained on iteration number i in a predetermined manner at least from certain components Y(i)k of an m-tuple Y(i)=(Y(i)1, Y(i)2, . . . , Y(i)m), where m?n, of elements of K and the terms of said pseudorandom sequence being extracted in a predetermined manner from the n-tuples X and/or the m-tuples Y. For at least one value of i, among said components Y(i)k of the m-tuple Y(i) that are used to obtain the multiplet X(i), at least E(n/2) of them are each represented by a predetermined second degree polynomial function, with coefficients in K, of the components of the n-tuple X(i?1).
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: December 3, 2013
    Assignee: France Telecom
    Inventors: Henri Gilbert, Jacques Patarin, Côme Berbain
  • Patent number: 8594089
    Abstract: A method of broadcasting data from a multicast source (S) to a plurality of receivers (CL) in a telecommunications network (1) in accordance with a broadcasting strategy, including: a step (E40) of receiving parameters (STAT, AG, CS); a step (E50) of adjusting said strategy as a function of said parameters; and in the event of modification of said strategy, a step (E70) of broadcasting in a multicast signaling channel, an identifier of this new broadcasting strategy.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: November 26, 2013
    Assignee: France Telecom
    Inventors: Sabine Lejeune, Jean-Baptiste Hennequin, David Dugoujon, Thomas Morin
  • Patent number: 8593998
    Abstract: For processing symbols transmitted in frames and separated by guard intervals via a propagation channel between first and second communicating entities using time-division duplexing, the second entity receives at least one pulse transmitted by the first entity. The second entity estimates the impulse response of the propagation channel as a function of the pulse received and time reverses the estimated impulse response in order to filter the symbols as a function of the time-reversed impulse response. The second entity then transmits the modulated symbols and a second pulse to the first entity during a guard interval in a frame in order to process the modulated symbols.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: November 26, 2013
    Assignee: France Telecom
    Inventors: Dinh Thuy Phan Huy, Jean-Marie Chaufray
  • Patent number: 8593259
    Abstract: The invention relates to a method of authenticating a radio tag by a radio reader, the tag possessing an identifier accessible to the reader via a database of tag identifiers, comprising: dispatching an authentication request by the reader to the tag, dispatching by the tag, a response, calculated by applying a first function to at least the identifier, a calculation by the tag and by the reader of a new identifier, by applying a second function to the identifier, comprising: if the response dispatched by the tag corresponds to a result obtained by applying said first function to an identifier of the base, a dispatching by the reader a first value, calculated by applying a third function to said identifier of the base.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: November 26, 2013
    Assignee: France Telecom
    Inventors: Sébastien Canard, Iwen Coisel
  • Patent number: 8595506
    Abstract: An authentication method of a prover device by a verifier device using cryptographic coupons is provided, where a coupon includes a pseudo-random number ri, where i is an index for labeling the coupon, and a reduced-coupon xi such that xi=ƒ(ri), where ƒ is a predetermined one-way function, the method including the following steps: the verifier device sends a challenge consisting of a random value c to the prover device; the prover device sends to the verifier device a response y calculated by using the pseudo-random number ri, the challenge c, and a secret key s belonging to the prover device; and the verifier device checks the validity of the response y based on the challenge c, the reduced-coupon xi corresponding to the pseudo-random number ri, and a public key V corresponding to the secret key s, the reduced-coupon xi being received by the verifier device from a source external to the prover device.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: November 26, 2013
    Assignee: France Telecom
    Inventors: Matthew Robshaw, Henri Gilbert
  • Publication number: 20130307766
    Abstract: A method to provide a user interface, the method may be controlled by one or more controllers and may include one or more acts of obtaining image information from a sequence of images of a user; analyzing the image information to recognize the user; recognizing first and second reference objects at least one of which corresponding with respective body parts of the user from the image information; determining whether a first reference object has been placed over or is within a threshold scaled distance of a second reference object; calculating an interaction time between the first reference object and the second reference object when it is determined that the first reference object has been placed over or is within the threshold scaled distance of the second reference object; comparing the interaction time with a threshold reference time; and performing an action in accordance with results of the comparison.
    Type: Application
    Filed: September 29, 2011
    Publication date: November 21, 2013
    Applicant: France Telecom
    Inventors: Sheshadri Amathnadu, Adam Odessky
  • Publication number: 20130309914
    Abstract: A multi-access RJ45 adaptor is provided, which includes an RJ45 plug, at least two RJ45 sockets, and a mobile piece that can move between the at least two RJ45 sockets. The mobile piece is configured to allow insertion of an RJ45 plug into any of the RJ45 sockets and simultaneously to prevent the insertion of another RJ45 plug into the other of the RJ45 sockets.
    Type: Application
    Filed: November 14, 2011
    Publication date: November 21, 2013
    Applicant: France Telecom
    Inventors: Hervé Le Cozic, Pierrick Guillas, Olivier Bouffant
  • Patent number: 8588415
    Abstract: A method of securing a telecommunication terminal that is connected to a module used to identify a user of the terminal is described. The method includes a step including executing a procedure in which the terminal is matched to the identification module, consisting in: securely loading a first software program including a data matching key onto the identification module; securely loading a second software program which can operate in conjunction with the first software program onto the telecommunication terminal; transmitting a data matching key that corresponds to that of the first software program to the second software program; storing the transmitted data matching key in the secured storage zone of the telecommunication terminal; and conditionally submitting every response from the first software program to a request from the second software program upon verification at the true value of the valid possession of the data matching key by the second program.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: November 19, 2013
    Assignees: France Telecom, Trusted Logic
    Inventors: Jean-Claude Pailles, Fabien Venries, Guillaume Bruyere, Alexandre Frey
  • Patent number: 8588608
    Abstract: A method is provided for managing connections in an optical access network. Also provided are a corresponding platform, exchange, network and computer software product. The method manages connections of a plurality of user modules to a plurality of transmission modules of an exchange in an optical access network. The management method includes a dynamic re-arrangement of the connection of at least one of the user modules to at least one of the transmission modules according to at least one predetermined optimization criterion.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: November 19, 2013
    Assignee: France Telecom
    Inventors: Philippe Guignard, Roman Glatty, Fabrice Bourgart
  • Patent number: 8588292
    Abstract: A method and apparatus are provided for decoding a signal representative of an image sequence. The method includes extracting motion tubes from the signal, each of the tubes being defined by at least the following information cues: a block of reference pixels comprising reference texture information cues; start-of-tube and end-of-tube instants; and transition information cues. The method further includes processing the transition information cues and combining the information cues associated with the current blocks of at least two of the tubes overlapping in an overlap zone of the current image.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: November 19, 2013
    Assignee: France Telecom
    Inventors: Stéphane Pateux, Benjamin Le Guen, Nathalie Cammas, Isabelle Amonou, Sylvain Kervadec
  • Patent number: 8588079
    Abstract: A method of notifying on a downstream link (2) of a network element (20) a transmission defect affecting an audio signal coded on an upstream link (1) of said network element. The method comprises a step in which the network element (20) sends, on said downstream link, an audio coded notification signal containing a specific notification pattern. Application to the switchover from an asynchronous link to a synchronous link.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: November 19, 2013
    Assignee: France Telecom
    Inventors: David Deleam, Laurent Clarimon
  • Patent number: 8588408
    Abstract: A method of implementing a block cipher algorithm by a device storing a fixed initialization datum includes determining, before execution of a first iteration of the algorithm in the course of a session, a modified initialization datum by way of a determined function supplied as input with the fixed initialization datum and a state value specific to the session. The state value may be stored in the device. The modified initialization datum may be used to implement the first iteration of the algorithm.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: November 19, 2013
    Assignee: France Telecom
    Inventors: Matthew Robshaw, Henri Gilbert
  • Patent number: 8589802
    Abstract: An access node grants a telecommunication device access to a content provider over a telecommunication network. The content includes a webpage having ad spaces for displaying banners ads uploaded from banner ad providers when the webpage is displayed on the telecommunication device. The access node is configured to forward a request for a first webpage sent by the telecommunication device to the content provider, receive the first webpage from the content provider, the first webpage including an ad spaces for banner ad(s), verify that the first ad space is tagged by the content provider with an indication identifiable by the access node, modify the first webpage to include in the first ad space a banner ad selected by the access node, when the first ad space is tagged with such the indication, and forward the modified first webpage for subsequent display of the first webpage on the telecommunication device.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: November 19, 2013
    Assignee: France Telecom
    Inventor: Srinivas Chervirala
  • Patent number: 8589595
    Abstract: A communication device for implementing a system for remotely managing at least one item of equipment by a management application able to communicate via a telecommunication network with an application embedded in the item of equipment. The device includes a first communication interface allowing implementation of a local communication link with the embedded application, a second communication interface allowing access to the telecommunication network, and a communication management device configured to communicate with the embedded application via the first interface and with the management application via the second interface, serving as communication relay between the embedded application and the management application, and configured to transmit to one of the two applications a message received from the other application, according to predefined transfer rules and as a function of at least one parameter received with the message.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: November 19, 2013
    Assignee: France Telecom
    Inventors: Jocelyn Barranco, Lars Kiessling, Anne Julien
  • Patent number: 8583424
    Abstract: A method and associated device are provided for spatial synthesis of a sum signal to obtain at least two output signals, the sum signal as well as the spatialization parameters being output from a parametric coding by matrixing of an original multi-channel signal. The method comprises: decorrelation of the sum signal to obtain a decorrelated signal; applying a synthesis matrix, whose coefficients depend on the spatialization parameters, to the decorrelated signal and to the sum signal to obtain said output signals, wherein for at least one range of value of at least one spatialization parameter, the coefficients of the synthesis matrix are determined according to a criterion of minimizing a quantitative function, relating to the quantity of decorrelated signal in each of the output signals obtained by applying the synthesis matrix.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: November 12, 2013
    Assignee: France Telecom
    Inventors: Florent Jaillet, David Virette
  • Patent number: 8583815
    Abstract: A method, corresponding device and computer program product are provided for generating a file describing a bit stream, from a description scheme describing a structure and a content that are compliant with a predetermined format and comprising a set of attributes and elements. The bit stream includes a plurality of fields. The method includes: assigning at least one value of at least one identified filed of the stream to at least one variable defined by an attribute of the description scheme, called assignment attribute; storing the variable; determining at least one characteristic of at least one element of the description file, from and evaluation of a conditional expression relating to the value; generating a portion of the description file according to the characteristics determined in the determination step.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: November 12, 2013
    Assignee: France Telecom
    Inventor: Sylvain Devillers
  • Patent number: 8576856
    Abstract: The invention concerns a residential gateway device designed for a decentralized client equipment and comprising converting means for providing interoperability between to separate IP telephony services.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: November 5, 2013
    Assignee: France Telecom
    Inventors: Patrick Babagbeto, Marc Bailly, Jean-François Jestin
  • Patent number: 8576854
    Abstract: A system for communication between a first computer terminal (1) in a private IP network (7) and a second computer terminal (5) in a public IP network includes a network boundary equipment (3). The communications system further includes a mediation system (2) in the private IP network that is associated with the first terminal (1) and is adapted to make an IP interface available to the second terminal (5), and a control server (4) in the public IP network able to control the mediation system 2 via a communications tunnel (6) through the network boundary equipment (3).
    Type: Grant
    Filed: December 24, 2004
    Date of Patent: November 5, 2013
    Assignee: France Telecom
    Inventors: Claude Daloz, Yacine Zoughlami, Frèdèric Felten