Thomson Licensing

Interdigital Madison Patent Holdings, Sas

Thomson Licensing S.a.

Interdigital Vc Holdings, Inc.

Interdigital Ce Patent Holdings

Beijing Xiaomi Mobile Software Co., Ltd.

Interdigital Madison Patent Holdings

Nextream France

Mary-Luc Champel

Nicolas Le Scouarnec

Christoph Neumann

Pierre Houeix

Ali Boudani

Franck Galpin

Jun Li

Hang Liu

Julien Fleureau

Renaud Dore

Sebastien Lasserre

Bertrand Chupeau

Mingquan Wu

Gilles Straub

Sébastien Lasserre

Ludovic Jeanne

Ralf Schaefer

Franck Aumont

Celine Guede

Julien Ricard

Christophe Diot

Jean-Baptiste Henry

Xiaojun Ma

Remi Houdaille

Charline Taibi

Joan Llach Pinsach

Nicolas Burdin

Augustin Chaintreau

Helmut Burklin

Laurent Massoulie

Huanqiang Zhang

Philippe Letellier

Jean-Francois Fleury

Augustin Soule

Jean-François Fleury

Stéphane Fillod

Laurent Marie

Philippe Lemonnier

Arnaud Maillet

Alexandre Deceneux

Kyoungwon Suh

Céline Guede

Jean-François M Fleury

Ma Xiaojun

Methods and devices are provided to encode and decode a data stream carrying data representative of a three-dimensional scene, the data stream comprising color pictures packed in a color image; depth pictures packed in a depth image; and a set of patch data items comprising de-projection data; data for retrieving a color picture in the color image and geometry data. These data are inserted in the video track of the stream with associated temporal information. The color and depth pictures that are repeated at least two times in a sequence of patches are not packed in the images but inserted in the image track of the stream and are pointed by color or geometry data.

Method and apparatus for encoding and decoding three-dimensional scenes in and from a data stream

Network equipment for establishing a manifest to be provided to a requesting terminal configured to receive a multimedia content divided into segments from a network equipment, each segment being available in one or more representations, said manifest listing available representations for the multimedia content and specifying a plurality of adaptation sets, each adaptation set defining a spatial object of the multimedia content, the spatial objects of the adaptation sets defining a whole spatial object is described. The network equipment includes at least one memory and at least one processing circuitry configured to define, in the manifest, a type of mapping of the multimedia content to the whole spatial object and a point of reference in one adaptation set of reference amongst the adaptation sets, and associate depth information with each adaptation set.

Method and network equipment for establishing a manifest

The invention concerns the exchange of parameters between communication devices of a network describing their respective data sessions and the application, at a communication device, of a bandwidth distribution algorithm using the exchange parameters to allocate bandwidth to one or more data sessions in the network.

Distribution of bandwidth in a network

A method of transmitting media data and display composition data for rendering the media data on a display region is described. In the method, the display composition data defines the spatial and/or temporal relationship between one or more media entities of the media data, the display region being composed of one or more display sub-regions. The method also includes the steps of transmitting display modification data, for a respective display region and/or a respective display sub-region, the display modification data indicating how the visual configuration of the respective display region or display sub-region may be modified by a user.

Method and apparatus for transmission and reception of media data

The invention concerns providing for each media package a plurality of spatial composition datasets defining the initial spatial rendering of the media entities of the media package and for each spatial composition datasets a plurality of temporal composition datasets. The invention may be applied to MMT data.

To compress headers efficiently, headers may be differentially encoded. In one embodiment, a difference between a current field and a reference field can be used in a reduced header. In another embodiment, the least significant bits of the current field can be used to represent the current field. When such a field is received, the most significant bits of a reference field are needed to decompress the field. In addition, the present principles determine the typical usage scenarios that may benefit from header compression and further determine that some fields can be removed in a reduced header or be represented by fewer bits. Header compression may impose constraints on the representation of the current field. The present principles recognize constraints on using reduced headers and provide rules and guidelines on applying header compression.

Method and apparatus for packet header compression

The present invention concerns a method of transferring content from a first communication device to a second communication device in a communication network, comprising the following steps:

Method for providing incentive mechanisms for out-of-order download in communication networks dedicated to the distribution of video-on-demand content

A method and apparatus are described for protecting real time media including receiving media packets, generating media bit strings from the media packets, applying a forward error correcting code across the generated media bit strings to generate at least one forward error correcting bit string and generating at least one forward error correcting packet from the at least one forward error correcting bit string. Also described are a method and apparatus for recovering from losses of real time media packets including forming media bit strings from received media packets, forming forward error correcting bit strings from received forward error correcting packets, decoding the formed media bit strings and forward error correcting bit strings to obtain recovered media bit strings and recover lost media packets from the recovered media bit strings. Further described is a data structure for a forward error correcting header on computer readable media.

Method to support forward error correction for real-time audio and video data over internet protocol networks

The invention enables a standard client according to the DVB-IPI phase 1 standard and connected within a local area network interconnected with a service delivery network via a non-transparent gateway to discover all the services offered to it both by the external delivery network an d by the servers in its local area network. The invention is based mainly on a service discovery aggregation functionality that we call 'SD & S proxy' implemented on any one of the devices connected to the local area network running jointly with an ad-hoc configuration of the gateway.

Service discovery aggregation method in a local area network and device implementing the method

Method for transmission of images comprising: In order to optimise the use of a transmission channel, the method also comprises: The invention also relates to a corresponding method for reception.

Method of transmission of digital images and reception of transport packets

The invention concerns a method for assigning parts of multimedia files to distributed storage devices, the number of said devices being an integer n, characterized in that it comprises the following steps:

Method for assigning multimedia data to distributed storage devices

A method is intended for disseminating content data in a peer-to-peer mode between peers connected to at least one communication network. This method comprises the steps of: i) making peers exchange neighboring information between them to build a bipartite peer overlay comprising a first group, comprising peers having a complete content to be disseminated, and a second group, comprising peers having not this content or only a part of it and having links therebetween, ii) disseminating the data defining the content (and preferably encoded with erasure correcting codes) from peers of the first group to first peers of the second group according to the bipartite peer overlay, iii) disseminating the data received by the first peers to other peers of the second group according to the bipartite peer overlay, and iv) updating the bipartite peer overlay when a peer of the second group has fully completed the content.

Device and method for disseminating content data between peers in a P2P mode, by using a bipartite peer overlay

A method dedicated to the management of data transmission in peer to peer mode between peers that can connect to a communication network, each transmission being carried out by a peer, following the reception of a request from another peer, according to a selected reciprocity mechanism. When a peer wants to receive from another peer N blocks of data according to a first priority level Xselected in a set of at least two different priority levels, in assigning to this peer an exchange value equivalent to a number M of blocks of data to be transmitted to at least one other peer according to a second priority level Xselected in this set, M being equal to N*m, where mis a predetermined value function of the first Xand second Xselected priority levels.

Method for managing data transmission between peers according to levels of priority of transmitted and received data and associated management device

In a method and an apparatus for navigating through subtitles of an Audio Video data stream an address information of one or more played back data units is stored together with the subtitle information of said played back data units during play back of said data units. One or more of said stored subtitle information can be displayed. Following the selection of one of said displayed subtitle information the stored address information of the data unit corresponding to the selected subtitle information is retrieved and the corresponding data unit is accessed using said retrieved address information. Playing back the accessed data unit conveniently allows to watch and listen to a scene including subtitles again, e.g. by a few clicks on the remote control.

Method and apparatus for navigating through subtitles of an audio video data stream

The invention relates to a method of transmitting digital data packets protected by error correction packets and more precisely the manner of inserting these correction packets into the data packet stream so as to increase the correction effectiveness of the error correction method while limiting the latency introduced into the transmission. The packets are set out in matrix form, error packets are computed on lines and columns and are inserted regularly into the stream at a sufficient distance from the data packets that they protect.

Method of transmitting digital data packets and device implementing the method and receiver

Growing community of inventors

Marpire, France

Mary-Luc Champel