Thomson Licensing

Interdigital Ce Patent Holdings

Interdigital Madison Patent Holdings, Sas

Broadpeak

Interdigital Ce Patent Holdings, Sas

Nicolas Le Scouarnec

Gilles Straub

Valter Drazic

Arno Schubert

Guillaume Bichot

Sebastien Lasserre

Ludovic Jeanne

Mary-Luc Champel

Christoph Neumann

Erwan Le Merrer

Pierre-Jean Guery

Vincent Richard

Serge Defrance

Stephane Gouache

Jean-Ronan Vigouroux

Klaus Gaedke

Charles Salmon-Legagneur

Olivier Heen

Christophe Diot

Jean C Bolot

Remi Houdaille

Charline Taibi

Patrick Perez

Stephane Onno

Frederic Lefebvre

Luis Montalvo

Jens Peter Wittenburg

Martin May

Brian Charles Eriksson

Mark Crovella

Meinolf Bilawat

Serge De France

Alexandre Van Kempen

Marc Riviere

Romaric Ludinard

According to embodiments, an enhancement layer segment may be requested in addition to a base layer segment for a same video. The enhancement layer may be requested, in a low priority, so that the base layer may be delivered in priority. If the enhancement layer can be obtained by a deadline, a subsequent base layer segment may be requested at a higher quality (e.g., at a bitrate lower than or equal to the sum of the bitrates of the previously requested base layer and enhancement layer segments). If, for example, at a playback time, the enhancement layer segment is not obtained, it may be determined that the quality cannot be increased and subsequent requests for enhancement layer segments may be cancelled (e.g., not transmitted). According to embodiments, probing may repeat (e.g., any of immediately, regularly, periodically, . . . ) to detect available bandwidth variations.

Method and apparatuses for sending and receiving a video

A method for delivering an audio and/or video content using adaptive streaming to a terminal, the audio and/or video content being segmented into data segments available in various representations with respective audio and/or video qualities, the representations being time-aligned per segment, the segments being further divided into chunks, a controller selects, from a set of candidate caching platforms, the caching platform to be used to deliver the audio and/or video content to the terminal, as a function of a minimum burst transfer duration compared with the chunk duration as defined by an origin server providing the audio and/or video content. The controller redirects the terminal to the selected platform for further delivery of the audio and/or video content in the form bursts of chunks in response to requests for segments.

Method and controller for audio and/or video content delivery

During an adaptive streaming session of video content, an access latency is obtained by a client device (A) running the adaptive streaming session in order to adapt the quality of the requested video content when necessary.

Method to be implemented at a device able to run one adaptive streaming session, and corresponding device

For delivering an audio and/or video content using adaptive streaming from a cache server to a client device, the audio and/or video content being segmented into data segments available in various representations with respective audio and/or video qualities, the representations being time-aligned per segment, the segments being further divided into chunks, a method includes: obtaining a round-trip time value applicable between the cache server and the client device; computing a minimum bulk transfer size from the maximum average bitrate of the various representations of the audio and/or video content and from the obtained round-trip time value; computing a minimum bulk duration, with respect to the audio and/or video content, for the representation to be delivered to the client device; and delivering the audio and/or video content by burst transfers in the form of bulks of aggregated successive chunks for each segment in accordance with the computed minimum bulk duration.

Method and server for audio and/or video content delivery

A system and method for generating high resolution images using a plenoptic camera, is provided. In one embodiment, the comprises capturing a first set of images in a first unexcited state of operation by using a birefringent medium disposed between a main lens and an array of lenses having a plurality of apertures. Each pixel of the first set of images is then mapped to a first set of apertures. The first unexcited state is then caused to become a second excited state by applying a voltage across said birefringent medium. A second set of images are captured in the second excited state and a second set of pixels of the second image is mapped to a second set of apertures. A value is calculated for each first and second set of images and the value associated with said first set of images is subtracted from at least two times the value calculated from said second set of image.

Plenoptic sub aperture view shuffling with improved resolution

A system and method for generating multiple images with rich color acquisition using a plenoptic camera having a main lens disposed in front of a micro array of lenses, a mosaic color filter array and an image sensor, characterized in that it comprises: capturing a first set of images using an ordinary state of an electrically controllable birefringent medium being disposed between said main lens and said micro array of lenses, said ordinary state providing an ordinary ray to each pixel; capturing a second set of images using an extraordinary state of said electrically controllable birefringent medium, said extraordinary state splitting the light from said main lens into an ordinary ray and a extraordinary ray respectively impinging on two adjacent pixels of different colors, said extraordinary ray being shifted by distance of one pixel on said image sensor; performing a weighted subtraction of information about said second set of images from information about said first set of images; and generating a final set of images with rich color information from said weighted subtraction and said first set of images.

Plenoptic sub aperture view shuffling for a richer color sampling

A system and method for generating high resolution images using a plenoptic camera having a main lens in front of an array of microlenses and an image sensor, characterized in that it comprises: capturing a first set of images in a first unexcited state of operation by using a birefringent medium disposed between a said main lens and an said array of microlenses, said unexcited state of said birefringent medium providing an ordinary ray to each pixel; causing said first unexcited state to become a second excited state by applying a voltage across said birefringent medium; capturing a second set of images in said second excited state, said excited state of said birefringent medium splitting the light from said main lens into an ordinary ray and an extraordinary ray, said extraordinary ray being shifted by a distance of one half-pixel from the ordinary ray on said image sensor; subtracting pixel value associated with said first set of images from at least two times the pixel value associated with said second set of images, and generating a final set of images with high resolution from said subtraction and said first set of images.

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

An apparatus and method for securely accessing a web service by a web application running in a browser on a user device is disclosed. A user device sends a request for accessing a web service by addressing a generic name. In response, the user device receives a global name that uniquely identifies a local device hosting a web service. The global name is further associated with a certificate. The user device receives the global name and verifies the certificate associated with the global name to securely access the web service.

Method and device for securely accessing a web service

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

In one embodiment, it is proposed a method for storing input data on a set of DNA strands, said input data being represented in a numeral system. This method is remarkable in that it comprises: formatting said input data into a set of blocks of data, each block of data having a size inferior to a size of one DNA strand; applying a first encoding with an erasure code on said set of blocks of data, defining a first set of modified blocks of data, each modified block of data having a size inferior to a size of one DNA strand; applying a second encoding using an error correcting code on each modified block of data of said first set, defining a second set of modified blocks of data, each modified block having a size inferior to a size of one DNA strand; encoding each modified block of data of said second set into a nucleotides block sequence; generating a set of DNA strands, each DNA strand comprising a nucleotides block sequence obtained through said encoding.

Methods for storing and reading digital data on a set of DNA strands

The present invention relates to a reliable method and device for backup of data from a first network to a second network. The method and device of the present invention can for example be used for a backup of voluminous data from the first to the second network via a link with a relatively small bandwidth.

Data backup method and device

A device and a method for online storage, device and method for searching for similar content, a device and a method of transmission and a device and a method. Encrypted data is saved at a provider of online services. With the encrypted data, encrypted hashing data is saved with a public key and the content to save is encrypted with the encrypted hash. This advantageously enables data duplication at the online service provider to be prevented while preserving the private life of the users of the service. In order to search for content similar to reference multimedia data, fingerprints are also saved at the service provider. In order to limit the number of false positives returned, the fingerprint can further contain a search fingerprint, an encrypted selection fingerprint.

Device and method for online storage, transmission device and method, and receiving device and method

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

The invention proposes a method and corresponding device for exact repair of pairs of failed storage nodes interconnected in a distributed data storage system, which method and device are particularly efficient with respect to reliability while keeping the use of resources of the distributed storage network low.

Growing community of inventors

Liffre, France

Nicolas Le Scouarnec