Thomson Licensing

Interdigital Ce Patent Holdings

Interdigital Ce Patent Holdings, Sas

Interdigital Ce Intermediate, Sas

Interdigital Patent Holdings, Inc.

Stephane Onno

Guillaume Bichot

Gilles Straub

Yvon Legallais

Alain Durand

Serge Defrance

Nicolas Le Scouarnec

Olivier Heen

Christoph Neumann

Olivier Courtay

Christopher Howson

Mohamed Karroumi

Sylvain Lelievre

Antoine Monsifrot

Erwan Le Merrer

Siegfried Loeffler

Francois Schnitzler

Clementine Maurice

Christophe Neumann

Eiwan Le Merrer

Valerie Leguillon

A first network analysis node in a network receives, from a device, a first message comprising information indicative of a subscription, for the device, to network analytics information, and sends, to a second network node, a second message comprising information indicative of a request for a transfer of at least part of the subscription to network analytics information to a second network analysis node.

Method for analytics data retrieval and corresponding apparatus

The invention relates to a method for controlling access to a first network, comprising receiving, by a first network access device of the first network, an access request from a visiting user device, determining, by the first network access device, if the visiting user device was granted an access to the first network, if the visiting device has not been granted an access to the first network, determining if there is a second network access device that granted the visiting user device an access to a second network and the second network access device is linked to the first network access device, and if the second network access device exists, granting the visiting user device an access to the first network by the first network access device.

Methods, apparatus, and system for controlling access to a local network

In an Internet interface device such as a gateway managing a local network, a processor obtains a packet received from a device via a local network interface. The processor can determine whether or not the packet originates from a device in the local network deemed to be part of a particular group. The processor can also determine if the packet is addressed to an internet domain for which it stores identifying information in memory. In this case, the processor inspects the packet in search of a cookie. In case no cookie is found, the packet is output as is; if a cookie is found, the processor modifies cookie information in the packet by inserting a cookie specific to the Internet interface device, which results in a modified packet that then is output through the internet interface. Using the original cookie and the added cookie, it is possible to link cookies sent from different devices in the local network.

Device and method for data packet processing

A network equipment includes at least one access point interface and is configured to operate a plurality of network functions. The network equipment is configured to be in communication with at least one terminal belonging to a network. The network equipment further includes at least one classifier configured to modify a data frame, the data frame coming from the at least one terminal and being received by the access point interface. The data frame may be modified by replacing an address of the data frame with processing information.

Method for managing service chaining at a network equipment, corresponding network equipment

A device configured to be connected to a customer premises equipment of a first type network. The first network includes at least one network apparatus in communication with the customer premises equipment and having a communication interface configured to receive capabilities information from the customer premises equipment and the at least one network apparatus, a routing application to define, based on the received capabilities information, one or several routing rules to route packets of the device. The routing rules identifying either the customer premises equipment or the at least one network apparatus to forward packets between the first type network and a second type network. The communication interface being further configured to send commands to enforce the defined routing rules either at the customer premises equipment or at the at least one network apparatus.

Method to be implemented at a device configured to be connected to a customer premises equipment of a first type network, corresponding device

A method and an apparatus for matching corresponding frames in two multimedia streams are suggested. The first multimedia stream is an original multimedia stream for which meta-data are available. The second multimedia stream is broadcasted or multi-casted multimedia stream and has undergone processing steps such that the meta-data of the original video stream are no more available or no longer reliable. The matching of corresponding frames in the two multimedia streams is based on the comparison of audio fingerprints and the detection of shot boundaries. Matching corresponding frames with frame accuracy enables inserting targeted content like advertisements into a sequence of video frames especially in a broadcast or multicast environment where meta-data and time markers cannot be relied upon.

Method and apparatus for matching of corresponding frames in multimedia streams

A method for fingerprinting wireless devices and a method for using a device fingerprint for identifying wireless devices. A monitoring station listens to a channel. For each received frame, the station measures the inter-arrival time from the end of the previously received frame to the end of the present frame, If possible, the station obtains the identity of the sender of the frame. If the sender is known, then the station stores the inter-arrival time in a histogram for the sender; the histogram becomes the fingerprint for the sender. Identification of a device begins by obtaining a number of inter-arrival times for an unknown sender and then matching these to stored fingerprints using a suitable similarity measure. The invention is particularly suitable for IEEE 802.11 and may for example be used to detect so-called MAC spoofing and as an additional layer of an identification protocol.

Method and device for fingerprinting of wireless communication devices

A method and a fingerprinting device for countering fingerprint forgery in a communication system. The fingerprinting device obtains and stores a reference fingerprint for a client device, generates and transmits decoy traffic that appears to originate from the client device, the decoy traffic having different fingerprinting properties than real traffic from the client device, generates a fingerprint for non-decoy traffic purportedly from the client device, and compares the generated fingerprint with a reference fingerprint. A forged fingerprint is detected if there is a mismatch. The decoy traffic preferably comprises frames to which no response is needed. The invention is particularly suited for 802.11 using fingerprints based on duration fields of received frames and the decoy traffic is then preferably probe request frames and null data frames.

Method and device for countering fingerprint forgery attacks in a communication system

A method of processing content according to a workflow, where a digital content is processed on one of a plurality of processing devices according to process definition associated to the content, includes the steps, iterated at the processing device, of:

Method and system for processing digital content according to a workflow

The invention relates to a method for burning digital data onto a blank disk by a client device, the digital data being transmitted to the client device by a remote content server. The following steps are carried out by the client device for burning digital data onto a blank disk: establishing a secure authenticated channel with the content server; receiving the digital data transmitted by the content server; verifying the existence of the secure authenticated channel and authorizing the burning of the digital data received only during the existence of the secure authenticated channel; and burning onto the blank disk the digital data received.

Method for recording and distributing digital data and related device

A device receives protected content and a license for the content, unprotects the content using an input key and retrieves a rule associated with the input key. The device then processes the content to create new content, retrieves at least one output key associated with the input key in the retrieved rule, protects the content using the output key and sends the newly protected content and the corresponding license. It is thus possible to impose a work flow as it is necessary for a device to store a particular key in order to access the content and as the rule imposes a particular output key depending on the input key. In a preferred embodiment, the content is scrambled using a symmetrical key that is encrypted by an asymmetrical key in the license. An alternate embodiment uses watermarking techniques instead of encryption. The invention finds particular use in video processing.

Device and method for digital processing management of content so as to enable an imposed work flow

The present invention concerns a method and a device for encrypting an encoded scalable enhancement frame sent by an emitter to a receiver, the enhancement frame comprising a plurality of complementary streams ordered in term of quality level, each complementary stream corresponding to a combination of more than one scalability type, where a complementary stream of a lower quality level corresponds to a lower quality on each scalability type, comprising at the level of the emitter the steps of generating a key per complementary stream for encrypting said complementary stream in such a way that all scalability types can be either simultaneously or individually used, said keys being generated in such a way that only the keys of the complementary streams of quality levels lower than the quality level of a complementary stream can be obtained from the key of said complementary stream, and sending the key of a complementary stream corresponding to a required quality level to the receiver, the key permitting a receiver to generate the keys of the complementary streams of the lower quality levels only. The present invention also concerns a method and a device for decrypting a received encoded scalable enhancement frame.

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Saint Gregoire, France

Stephane Onno