Thomson Licensing

Interdigital Ce Patent Holdings

Interdigital Ce Patent Holdings, Sas

Interdigital Ce Intermediate, Sas

Interdigital Patent Holdings, Inc.

Christoph Neumann

Olivier Heen

Stephane Onno

Patrick Fontaine

Mary-Luc Champel

Nicolas Le Scouarnec

Christopher Howson

Pascal Le Guyadec

Thierry Filoche

Gilles Straub

Serge Defrance

Philippe Gilberton

Jean-Ronan Vigouroux

Christophe Diot

Pierre Houeix

Augustin Chaintreau

Laurent Massoulie

Stéphane Onno

Xavier Lebegue

Siegfried Loeffler

Erwan Le Merrer

Ali Boudani

Augustin Soule

Francois Schnitzler

Ghislaine Pondaven

Georgios Damaskinos

Clementine Maurice

Anne Lambert

Kyoungwon Suh

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

A query-set is used to obtain recommendation results from different recommendation algorithms available locally on a device. The same query-set is used to obtain recommendation results from a remote, well-established online recommendation system using an unknown recommendation algorithm. Distances are measured between the recommendation results from the online recommendation system and the recommendation results from each of the local recommendation algorithms. The local recommendation algorithm having generated recommendation results with a smallest distance to the recommendation results from the online recommendation system is selected for generation of recommendations based on a local recommendation algorithm.

Method and selection of a recommendation algorithm and corresponding apparatus

The present disclosure proposes a solution to associate a device with a user by capturing a voice of a speaker by a microphone connected to the network device (e.g. a residential or home gateway), monitoring the IP traffic of the network device and detecting the device contributing to this IP traffic in order to establish a link between the speaker and his device(s) and associate the device with the speaker.

Method for associating a device with a speaker in a gateway, corresponding computer program, computer and apparatus

A home assistant device and a method for privacy-preserving vocal interactions. A microphone captures an audio signal corresponding to a vocal user query. The identity of the speaker is determined, and an obfuscated name is generated corresponding to the identified speaker. The audio signal is analysed to determine the intent of the user and a personalized answer is generated in combination with the obfuscated name. This answer is then de-obfuscated by reintroducing the speaker name. The de-obfuscated answer is rendered to the speaker.

Device and method for privacy-preserving vocal interaction

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

An access point receives from a client a first nonce and a first cryptographic hash for the first nonce, the first cryptographic hash calculated using a first key derived from a second key, the second key input on the client or derived from a passphrase input on the client, derives first keys from each of a stored primary input and at least one stored secondary input valid at the deriving, the stored primary input and the at least one stored secondary input each being one of a second key and a passphrase, verifies the cryptographic hash using each derived first key to find a derived first key that checks the first cryptographic hash, generates a third key and a second cryptographic hash using the derived first key that checks the first cryptographic hash, and sends the third key and the second cryptographic hash to the client.

Devices and methods for client device authentication

A method for forwarding a connection at an interconnecting device is described. The method includes receiving from an originating device an incoming connection at an incoming port, determining by at least one hardware processor whether port translation is implemented for the incoming port, in case port translation is implemented for the incoming port, returning to the originating device by the at least one hardware processor a challenge intended to distinguish humans from computers, verifying by the at least one hardware processor that a response received in response to the challenge is a correct response to the challenge, and, in case the response is a correct response to the challenge, forwarding, by the at least one hardware processor, the connection to a translated port corresponding to the incoming port according to the port translation.

Device and method for forwarding connections

A method for detecting interferences in wireless networks is disclosed. A salient idea is to use a first access point for detecting an interference disturbing a wireless device associated with a second access point, wherein the device at the origin of the interference is in the range of the first access point, but not in the range of the second access point. Leveraging on the difference of coverage between different wireless networking technologies, the first access point is capable of detecting both a data traffic of a second access point and a short-range interfering device in a same frequency channel.

Method, device and system for detecting interferences

A TCP handshake is distributed by having an initiator device send, to a server SYN(m) with the IP address of a terminator device as source address. The initiator device can then forget any TCP state for the SYN(m). The server responds with a SYN-ACK(m+1, n) according to the normal TCP handshake, but the response goes to the terminator device that receives the message, reconstructs the TCP handshake as if it had sent the initial SYN message, and sends an ACK(n+1) to the server. The TCP handshake method can be used to avoid allocation of resources in for example device monitoring.

Devices and methods for performing TCP handshakes

A method and a related electronic device for selecting, from a plurality of candidate video frame sets, a candidate video frame set to be inserted in a video frame slot of a given video content. It comprises obtaining the plurality of candidate video frame sets according to ranking values of a sorting parameter associated with each of the candidate video frame sets, thereby obtaining a list of candidate video frame sets and for each candidate video frame set of the list, determining a processing cost for inserting the candidate video frame set and applying the processing cost for obtaining an updated candidate video frame set ranking value according to the sorting parameter. The list is then sorted according to the updated ranking values of the sorting parameter and a selection of a candidate video frame set of the sorted list according to the updated ranking value.

Method for selecting from a plurality of candidate video frame sets, a candidate video frame set to be inserted in a video frame slot of a given video content, corresponding device, arrangement and computer program product

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

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 management device (D) that is part of a communication network (R) to which can be connected items of communication equipment (T-T) constituting peers storing content data and operating in P2P mode. This device (D) comprises analysing means (MA) adapted to, in the case of reception of a request for obtaining peer identifiers, said request designating content, from a peer (T), i) to access a tree structure comprising leaves (associated with peer identifiers storing content associated with content identifiers) and location nodes (associated with location information, representative of location of peers associated with leaves that are attached to them, and with content information, representative at least of content identifiers that store these peers), in order to determine the location of the leaf associated with the content identifier designated in the received request, then the peer identifiers associated with leaves that are attached to this determined location node and said content identifier, and ii) order the transmission to the requesting peer (T) of the determined peer identifiers.

Method for managing requests for obtaining peer identifiers to access stored contents in P2P mode, and associated management device and network equipment

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Rennes, France

Christoph Neumann