Querell Data Limited Liability Company Patent applications |
Patent application number | Title | Published |
20130036436 | PROCESS AND DEVICE FOR THE PROTECTION AND DISPLAY OF VIDEO STREAMS - A process distributing video streams to a plurality of addressees, comprising a marking step comprising adding at least one visual element to a video stream, which marking step is applied to an original video stream common to all the addressees and which is personalized for each addressee by addition of a visual element specific to the addressee that allows rapid visual identification of the addressee, wherein the added visual element replaces part of the original video stream that is stored in complementary information on a multimedia server. | 02-07-2013 |
20120291061 | PROCESS AND SYSTEM FOR THE SECURE BROADCASTING OF PROTECTED AUDIOVISUAL STREAMS TO A DYNAMIC GROUP OF RECEIVERS - Embodiments of the invention may relate to the distribution of digital audiovisual sequences. The distribution of such sequences may involve generating and transmitting modified sequences and complementary information. The complementary information may allow reconstruction of the original sequences from the modified sequences. | 11-15-2012 |
20120201384 | ADAPTIVE AND PROGRESSIVE AUDIO STREAM SCRAMBLING - A process for distributing digital audio sequences according to a nominal stream format that include a succession of frames, each of which includes at least one digital audio block grouping a plurality of coefficients corresponding to digitally coded audio elements, including modifying at least one block of an original stream of sequences, in an adaptive manner on the original stream as a function of at least a part of characteristics representative of the structure, content and parameters of the original stream, a target profile and external events. | 08-09-2012 |
20100142621 | SCRAMBLING, DESCRAMBLING AND SECURED DISTRIBUTION OF AUDIO-VISUAL SEQUENCES FROM VIDEO CODERS BASED ON WAVELETS PROCESSING - A process for secured distribution of video sequences according to a digital stream format stemming from an encoding based on a processing by wavelets including frames including blocks containing coefficients of wavelets describing the visual elements, including analyzing the stream prior to transmission to client equipment to generate a modified main stream by deletion and replacement of selected information coding the original stream and having the format of the original stream, and complementary information of any format comprising the digital information coding the original stream and suitable for permitting reconstruction of the modified frames; and transmitting the modified main stream and the complementary information separately from a server to addressed equipment. | 06-10-2010 |
20100076773 | SECURE AUDIO STREAM SCRAMBLE SYSTEM - A process for distributing digital audio sequences according to a nominal flux format including a succession of fields, each of which includes at least one digital block clusterizing a selected number of coefficients corresponding to single audio elements that are digitally coded inside the flux and utilized by audio decoders that are able to play it to be able to decode it correctly, including a preparatory step including modifying at least one of the coefficients, and a transmission step including a primary flux in compliance with a nominal format including blocks that were modified during the preparatory step and by a route separated from the primary flux by an additional piece of digital information which allows reconstruction of the original flux starting with a calculation, on recipient equipment, as a function of the primary flux and of the additional information. | 03-25-2010 |
20100040228 | PERSONALIZED MARKING FOR PROTECTING DIGITAL AUDIOVISUAL STREAMS - A process for distributing a video stream to a multitude of destinations including marking by adding to the video stream at least a visual element such that the marking is applied to an original video stream common to selected recipients, and personalized for a least portion of the recipients by addition of a visual element specific to destination equipment. | 02-18-2010 |
20100017498 | PROCESS AND DEVICE FOR SECURING THE TRANSMISSION, RECORDING AND VIEWING OF DIGITAL AUDIOVISUAL PACKETIZED STREAMS - A process for secure distribution of original digital audiovisual streams including audio, video components or other data, including packetizing the original stream into packets that can be manipulated and have a flexible size, wherein each packet includes a header containing information about the packet and a useful load including part of the data of the stream, analyzing the packetized stream prior to transmission to client equipment to generate a main stream in conformity with a packetized format of the original stream, modified in that all or part of the packets were substituted by packets of the same structure, but whose content was modified, and generating complementary information with any format suitable to permit reconstruction of the original stream, and separately transmitting the modified main stream and complementary information generated from the server to addressed equipment. | 01-21-2010 |
20100011393 | DISTRIBUTED AND SECURED METHOD AND SYSTEM FOR PROTECTING AND DISTRIBUTING AUDIO-VISUAL FLOWS - A process for secure distribution of digital audiovisual streams according to a standard, normalized or proprietary format, on which streams a separation of the stream into two parts is made prior to transmission to equipment of an addressee to generate a modified main stream having a format of the original stream and complementary information of any format including digital information suitable to permit reconstruction of the original stream, wherein a transmission is made, by separate paths during distribution of the modified main stream from a distribution server and of the complementary information to the equipment of the addressee from a secure central server passing via at least one local server connecting the equipment of the addressee to the local server via at least one access point. | 01-14-2010 |