INSTITUT MINES-TELECOM Patent applications |
Patent application number | Title | Published |
20150381969 | SYSTEM FOR SIMULTANEOUSLY DISPLAYING MULTIPLE MULTIMEDIA STREAMS, INCLUDING MULTIPLE VIEWING SPECTACLES AND A DISPLAYING MEDIUM - A system for displaying N multimedia streams, including multiple pairs of viewing spectacles and a displaying medium. The system obtains N multimedia streams, each stream including two multimedia substreams among 2×N multimedia substreams, and has N sources generating the 2×N substreams on the displaying medium. Each source has an encoder for coding two of the 2×N multimedia substreams, each substream being coded with a set of N coding modes each using a specific set of at least two states, having at least 2 | 12-31-2015 |
20140314410 | SYSTEM FOR TRANSMISSION OVER A MULTI-MODE AND/OR MULTI-CORE OPTICAL FIBER - A transmitter for an optical telecommunication system on a weakly multimode fiber is disclosed. One aspect is a transmitter including an encoder transforming each block of symbols to be transmitted into a code matrix, each element of the matrix being relative to a time of use and to a propagation mode of the weakly multimode fiber. The transmitter can include a plurality of modulators respectively associated with the different propagation modes, each modulator modulating a laser beam during a time of use. Each modulator can modulate a laser beam by use of an element of the corresponding matrix, the elements of the matrix of the code being subjected beforehand to an OFDM modulation upstream of said modulators. Each of the modulated beams can be input into the weakly multimode fiber to propagate therein according to a separate mode. | 10-23-2014 |
20140219295 | LOSSLESS DATA CODING FOR BIDIRECTIONAL COMMUNICATION IN A COLLABORATIVE SESSION OF MULTIMEDIA CONTENT EXCHANGE - The disclosed method for coding data includes the exchange between the transmitter and the receiver, in the course of the session, of attributes of collaboration messages that are able to be used in said session and of indices associated with these attributes. In various implementations, the attributes and their indices may be used by these pieces of equipment for updating a shared dictionary of indexed attributes. Upon coding, the attributes of the collaboration messages may be substituted with their indices; and upon decoding, the inverse operation may be carried out. The shared dictionaries may be destroyed at the end of the session. | 08-07-2014 |
20140168218 | Methods and Devices for Producing and Processing Representations of Multimedia Scenes - The representation of content, in a scene representation, is enriched with a view to the adaptive use of the latter according to a set of common parameters. A sub-graph of the scene graph, which is susceptible to variable processing, is identified. For this purpose, two new types of scene element can be defined, one of which allows the identification of the sub-graph and the second enables application of the set of common parameters in relation to the sub-graph. An example of the first type is a node of so-called “AdaptivityControl” type which encompasses the entire sub-graph, a list of the nodes describing the set of common parameters and a group of fields for dynamic updating of the content of this node. An example of the second type is a node of so-called “CompressedImageStrategy” type which comprises information relating to the object to be coded and the coding parameters. | 06-19-2014 |
20130212375 | Method of Checking and Protecting Data and Identity Especially Within Processes Using Information and Communication Technologies. - A method of checking and protecting data and identities within a communication or computing process between at least one author and at least one recipient comprises at least: a step of allocation by an anonymization authority of one and the same stamp forming a cryptonymic marking, to one or to several different authors and to their objects; a step of inserting said stamp into the communication or computing protocol associated with the data stream, by means of a stamp system, the protocol containing the identity of said author or of said object of the author or authors, and each author being able moreover to simultaneously have a plurality of different cryptonyms; a step of reading, at at least one recipient, of said protocol by means of a reading system able to detect the presence of said stamp. | 08-15-2013 |
20130205371 | Method for Securing Digital Data and Identities in Particular in a Process Using Information and Communication Technologies - A method of securing and controlling data and identities within a communication process between an author and at least one recipient comprises at least: inserting at least one stamp in the computer or communication protocol associated with the data stream by means of a stamping system, the protocol containing the identity of the author, said stamp being a distinctive sign and a sign of recognition and a means of access to a secured account; the author using said secured account, administered by an anonymization authority, and said stamp being used to identify itself with said authority; the data stream comprising at least one instruction; at least one additional instruction having been registered with the anonymization authority and placed in the secured account; reading, at at least one recipient, of said protocol by means of a reading system capable of detecting the presence of said stamp and then in extracting all or part of the additional instruction from the anonymization authority or from the secured account, said extraction being carried out from the secured account by the means of said stamp. | 08-08-2013 |