The invention relates to an antenna device (106) comprising: - a dipole (108A, 108B) designed to switch from guided propagation to free-space propagation of an electromagnetic wave, and vice versa; - a mast (114) which has a hollow section and to which the dipole (108A, 108B) is attached; - an internal line (402C) designed to conduct the electromagnetic wave via guided propagation, the internal line (402C) running in the mast (114); and - a rejection filter (414, 416) comprising an open line (418, 420) connected to the internal line (402C) located in the mast (114). The open line (418, 420) extends entirely in the mast (114) as a continuation of the internal line (402C), and no open line of the rejection filter extends in the mast (114) along the internal line (402C).
A system (1) for determining radiation characteristics of an antenna comprises an azimuth positioner (50) comprising a device (52) for driving the rotation of an antenna (2) about a vertical axis of rotation (R), a measuring arm (10) comprising a free end (12) and a mounting end (11), a frame (20) on which the measuring arm is mounted and comprising means (21, 22) for driving the mounting end of the measuring arm in a plane (P1) tangential to a cylinder of revolution of which the axis is the vertical axis of rotation (R), and measuring probes (40) positioned on the free end of the arm, the measuring arm extending longitudinally towards the azimuth positioner in a horizontal direction perpendicular to the tangential plane, the means for driving the mounting end of the measuring arm driving all of the measuring probes in a measuring plane (P2) parallel to the tangential plane and extending at a distance from the vertical axis of rotation.
G01R 29/08 - Measuring electromagnetic field characteristics
3.
Methods and devices for inserting an event into a transport flow, for monitoring, managing and receiving the transport flow, and computer program all corresponding thereto
Methods and devices for inserting an event into a transport flow, for monitoring, managing and receiving the transport flow, and computer program all corresponding thereto. The invention relates to a method for monitoring a transport flow at the output of an equipment of a broadcast network, implementing at least one iteration of the following steps: —obtaining (61) the transport flow delivered by said equipment, —detecting (62) a current event packet associated with content carried by said transport flow, said event packet carrying a synchronization header comprising: —reference time information defined with respect to a reference clock of said content; —a desired delay between said current event packet and a reference packet of said content identified based on said reference time information, —determining (63) an offset between an actual position of said current event packet in said transport flow and a desired position of said current event packet in said transport flow, determined based on said reference time information and on said desired delay, called processing offset.
H04N 21/236 - Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator ] into a video stream, multiplexing software data into a video streamRemultiplexing of multiplex streamsInsertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rateAssembling of a packetised elementary stream
H04N 21/242 - Synchronization processes, e.g. processing of PCR [Program Clock References]
H04N 21/262 - Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission or generating play-lists
H04N 21/43 - Processing of content or additional data, e.g. demultiplexing additional data from a digital video streamElementary client operations, e.g. monitoring of home network or synchronizing decoder's clockClient middleware
4.
ANTENNA DEVICE WITH TWO DIPOLE ARRAYS AND ASSOCIATED COMMUNICATION SYSTEM
The invention relates to an antenna device (102) comprising a low-frequency array (104) of low-frequency dipoles (112) having respective centres (112c) aligned on a so-called vertical axis (A1); a high-frequency array (106) of high-frequency dipoles (114) having respective centres (114c) following one another vertically; and a support (115) for the low-frequency dipoles (112) and the high-frequency dipoles (114). The device is characterised in that the high-frequency dipoles (114) are arranged so that the centre (112c) of each low-frequency dipole (112) is positioned vertically between the centres (114c) of a pair (P1; P2) of two high-frequency dipoles (114).
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 21/08 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a rectilinear path
H01Q 5/42 - Imbricated or interleaved structuresCombined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more imbricated arrays
H01Q 5/48 - Combinations of two or more dipole type antennas
5.
METHODS FOR BROADCASTING, RECEIVING AND ANALYSING A DATA STREAM BROADCAST IN AT LEAST ONE BROADCAST NETWORK, AND CORRESPONDING DEVICES AND COMPUTER PROGRAM
A method for broadcasting a data stream in at least one broadcast network. The method includes inserting, into the data stream, at least one identifier associated with at least one broadcast area of the broadcast network used to broadcast the data stream. The at least one identifier is transmitted in signalling information of an application to be executed by at least one receiver of the data stream.
H04N 21/658 - Transmission by the client directed to the server
H04N 21/258 - Client or end-user data management, e.g. managing client capabilities, user preferences or demographics or processing of multiple end-users preferences to derive collaborative data
6.
Method for signaling a substitution to a terminal, method for substitution by a terminal, and corresponding computer program products, system and terminal
A method for signalling, to a terminal, substitution of an item of content, broadcast via a broadcast network to which the terminal is connected, with a substitute item of content. Such a method includes: obtaining a substitute information packet including time information indicating a time of execution, by the terminal, of an action for substituting the broadcast item of content with the substitute item of content, wherein the time information corresponds to a date of rendering of an image of the broadcast item of content with reference to a reference clock embedded in the broadcast item of content; generating an event notification message including the time information; and inserting the event notification message into a data flow conveying the item of content broadcast within the broadcast network.
H04N 21/234 - Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
H04N 21/44 - Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
H04N 21/2668 - Creating a channel for a dedicated end-user group, e.g. by inserting targeted commercials into a video stream based on end-user profiles
H04N 21/433 - Content storage operation, e.g. storage operation in response to a pause request or caching operations
7.
METHODS AND DEVICES FOR INSERTING AN EVENT INTO A TRANSPORT FLOW, FOR MONITORING, MANAGING AND RECEIVING THE TRANSPORT FLOW, AND COMPUTER PROGRAM ALL CORRESPONDING THERETO
Methods and devices for inserting an event into a transport flow, for monitoring, managing and receiving the transport flow, and computer program all corresponding thereto. The invention relates to a method for monitoring a transport flow at the output of an equipment of a broadcast network, implementing at least one iteration of the following steps: - obtaining (61) the transport flow delivered by said equipment, - detecting (62) a current event packet associated with content carried by said transport flow, said event packet carrying a synchronization header comprising: - reference time information defined with respect to a reference clock of said content; - a desired delay between said current event packet and a reference packet of said content identified based on said reference time information, - determining (63) an offset between an actual position of said current event packet in said transport flow and a desired position of said current event packet in said transport flow, determined based on said reference time information and on said desired delay, called processing offset.
H04N 21/222 - Secondary servers, e.g. proxy server or cable television Head-end
H04H 20/14 - Arrangements for monitoring, testing or troubleshooting for monitoring programmes
H04H 20/18 - Arrangements for synchronising broadcast or distribution via plural systems
H04N 21/236 - Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator ] into a video stream, multiplexing software data into a video streamRemultiplexing of multiplex streamsInsertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rateAssembling of a packetised elementary stream
H04N 21/242 - Synchronization processes, e.g. processing of PCR [Program Clock References]
H04N 21/262 - Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission or generating play-lists
H04N 21/434 - Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams or extraction of additional data from a video streamRemultiplexing of multiplex streamsExtraction or processing of SIDisassembling of packetised elementary stream
8.
RADIOFREQUENCY TRANSMISSION/RECEPTION SYSTEM, ASSOCIATED INSTALLATION AND METHOD
Disclosed is a radiofrequency transmission/reception system comprising an array (308) of active antennas comprising a main group (A0) of active antennas oriented in a main direction (d0). The system further comprises a control device (3) for said active antenna array (308) designed to receive a misalignment value (φ) from several possible misalignment values and to control the active antennas (5.1...5.N) in such a way as to emit a beam that is misaligned by the received misalignment value, relative to the main direction (d0). The active antenna array (308) comprises at least one auxiliary group (A1, A2) of active antennas, referred to as auxiliary antennas, oriented in an auxiliary direction (d1; d2), different from the main direction (d0).
H01Q 3/24 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
H01Q 9/28 - Conical, cylindrical, cage, strip, gauze or like elements having an extended radiating surface Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
H01Q 21/08 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a rectilinear path
H01Q 21/29 - Combinations of different interacting antenna units for giving a desired directional characteristic
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H01Q 21/20 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a curvilinear path
9.
RADIOFREQUENCY TRANSMISSION/RECEPTION SYSTEM, AND ASSOCIATED FACILITY AND METHOD
Disclosed is a radiofrequency transmission/reception system (100) comprising an array of active antennas (308) and a device (3) for controlling the array of active antennas, the device being designed to receive a misalignment value from among several possible misalignment values and to control the antennas so as to transmit at least one beam misaligned by a received misalignment relative to a default direction. The array (308) of active antennas further comprises parasitic elements (6.1, …, 6.n,…, 6.N), respectively associated with at least some of the active antennas so as to modify a directivity of the associated antenna, and control means (307a) designed to selectively activate each of the parasitic elements.
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H01Q 3/24 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
H01Q 9/28 - Conical, cylindrical, cage, strip, gauze or like elements having an extended radiating surface Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
H01Q 21/08 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a rectilinear path
H01Q 21/29 - Combinations of different interacting antenna units for giving a desired directional characteristic
A method for encoding a data stream representing an omnidirectional video. The method includes: encoding, in the stream, at least one base layer representative of a 2D or 3D video, the 2D or 3D video being representative of a view of a same scene captured by the omnidirectional video; and encoding, in the stream, one enhancement layer representative of the omnidirectional video. The enhancement layer is encoded by prediction relative to the base layer. The prediction of the enhancement layer relative to the base layer includes: generating a reference sub-image obtained by geometrical projection on the reference sub-image of an image, called a base image, rebuilt from the base layer, and storing the reference sub-image in association with shift information enabling an encoder to determine the location of the reference sub-image in the enhancement image in a non-transitory computer-readable memory of reference sub-images of the enhancement layer.
H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
H04N 19/174 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
H04N 19/34 - Scalability techniques involving progressive bit-plane based encoding of the enhancement layer, e.g. fine granular scalability [FGS]
H04N 19/103 - Selection of coding mode or of prediction mode
H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
H04N 19/172 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
H04N 19/187 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a scalable video layer
H04N 19/30 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
H04N 19/46 - Embedding additional information in the video signal during the compression process
H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
11.
METHODS FOR BROADCASTING, RECEIVING AND ANALYSING A DATA STREAM BROADCAST IN AT LEAST ONE BROADCAST NETWORK, AND CORRESPONDING DEVICES AND COMPUTER PROGRAM
The invention relates to a method for broadcasting a data stream in at least one broadcast network, comprising inserting (21), into the data stream, at least one identifier associated with at least one broadcast area of the broadcast network used to broadcast the data stream. According to the invention, the at least one identifier is transmitted (22) in signalling information of an application to be executed by at least one receiver of the data stream.
H04N 21/442 - Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed or the storage space available from the internal hard disk
H04N 21/258 - Client or end-user data management, e.g. managing client capabilities, user preferences or demographics or processing of multiple end-users preferences to derive collaborative data
H04N 21/2362 - Generation or processing of SI [Service Information]
H04N 21/658 - Transmission by the client directed to the server
H04H 60/50 - Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of broadcast or relay stations
12.
METHOD AND DEVICE FOR GENERATING A RADAR SIGNAL, ASSOCIATED RADAR DETECTION METHOD AND SYSTEM
A method and a device for generating a radar signal are provided. The method includes a step of acquiring a communication signal comprising frames assigned to communication and frames not assigned to communication, and a step of inserting a radar pulse into at least one non-assigned frame of the communication signal, called radar frame, in order to form said radar signal.
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 7/00 - Details of systems according to groups , ,
G01S 13/06 - Systems determining position data of a target
The invention relates to a method for opting out within a multiplex made up of a plurality of streams transmitting services, the method being implemented in a broadcast network at a broadcast site receiving a stream broadcasting a first service to be replaced by a second service from a first given point in time. The video component of the second service consists of a plurality of chunks with different bit rates. The method comprises at least the following steps implemented at at least one broadcast site: segmenting the first service into a plurality of time segments of at least the size of a chunk, and determining the bit rate of each segment of the first service, selecting, for each component of the service to be replaced and for each time segment, a chunk whose bit rate is at most equal to that of the first service of this segment, the selected chunk being split into packets that are inserted into the first stream, replacing each component of the first service with data packets from the selected chunk, reiterating the above steps until a second given point in time when the broadcast of the service of the first stream is resumed.
The invention concerns a method for configuring an active antenna network in which each of the antennas comprises at least one radiating element (5.1,…,5.n) and one amplifier (4.1,…,4.n) designed to excite the radiating element. The configuration method comprises a step (E3) of determining turned-off and non-turned-off antennas using energy consumption characteristics of the amplifiers such that, for the non-turned-off antennas, each of the amplifiers operates in a linear regime. A set of complex excitations is calculated by applying a set of conditions comprising a power condition concerning the output power of each amplification corresponding to a non-turned-off antenna. The dynamic selection of an optimal bias voltage allows each amplifier to operate at optimal energy efficiency. The invention also relates to an active antenna network configured by this configuration method and any radiofrequency communication device comprising such an active antenna network.
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 3/28 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the amplitude
15.
METHOD FOR SIGNALLING A SUBSTITUTION TO A TERMINAL, METHOD FOR SUBSTITUTION BY A TERMINAL, AND CORRESPONDING COMPUTER PROGRAM PRODUCTS, SYSTEM AND TERMINAL
The invention relates to a method for signalling, to a terminal, the substitution of an item of content, broadcast via a broadcast network to which the terminal is connected, with a substitute item of content. Such a method comprises: - obtaining (E300) a substitute information packet comprising time information indicating a time of execution, by the terminal, of an action for substituting the broadcast item of content with the substitute item of content. The time information corresponds to a date of rendering of an image of the broadcast item of content with reference to a reference clock embedded in the broadcast item of content; - generating (E320) an event notification message comprising the time information; and - inserting (E330) the event notification message into a data flow conveying the item of content broadcast within the broadcast network.
H04N 21/2668 - Creating a channel for a dedicated end-user group, e.g. by inserting targeted commercials into a video stream based on end-user profiles
H04N 21/433 - Content storage operation, e.g. storage operation in response to a pause request or caching operations
H04N 21/44 - Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
16.
METHOD FOR IDENTIFYING AN AUDIO STREAM ORIGINATING FROM A PLURALITY OF SOURCES AND SYSTEM, RECEIVER AND PROGRAM ASSOCIATED WITH THE METHOD
The invention relates to a method for identifying audio content emitted by a plurality of identified audio sources, the sources emitting an audio stream having a name presented to users. The method is characterized in that it comprises the following steps executed on a server (1): a step of collecting (4.1, 4.2, 4.3) source identifiers and at least one name associated with the content emitted by each of these sources, a step of receiving (5.2) audio stream segments emitted by each of these sources by using the source identifiers thereof, a step of comparing (5.4) information that represents the audio content of each segment, in order to determine content identities, a step of associating (5.8) identifiers of audio sources emitting the same content with at least one name. In this manner, it is possible to identify each stream by its audio content and to compare said content with other content in order to generate associations between sources emitting the same content.
G06F 16/683 - Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
H04H 60/43 - Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast channels
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
17.
METHOD FOR TRANSMITTING AUDIO CONTENT TO A HYBRID RECEIVER BY RECEIVING MANIFESTS GENERATED BY A MANAGER SERVER, RECEIVER AND ASSOCIATED MANAGER SERVER
The invention relates to a method for transmitting audio content to a hybrid receiver with a view to offline playback, said content being broadcast in real time on a predetermined radio channel, and data packets being available offline by connecting to a dedicated server (CDN). Firstly, a server referred to as the 'manager' sends requests to said dedicated server (CDN) to receive a manifest identifying a series of a predetermined number of data packets including the one containing the audio broadcast in real time on the predetermined radio channel (2.1). The manager server records the manifests generated by the dedicated server by dating them according to the transmission time of the most recent packet of data broadcast on the predetermined radio channel (2.2) A hybrid receiver asks the manager server to receive part of a content broadcast from a predetermined time (2.3). The manager server then looks in the stored manifests for data packet references corresponding to the part of the content broadcast from the predetermined time and transmits a manifest referencing all of said data packets to the hybrid receiver (2.4). The hybrid receiver than sends to the dedicated server (CDN) a request to receive the data packets referenced in said manifest (2.5).
The invention relates to a method for sending control data in a hybrid wireless/broadcast network system, said network system comprising a broadcast network dedicated to transmission of broadcast services through at least a broadcast cell and a wireless network dedicated to transmission of at least a service through a plurality of cells, a cover area of the broadcast cell covering, at least partially, a cover area of a first cell and a cover area of a second cell among the plurality of cells, said method comprising: when control data related to a service of the first cell is identical to control data related to a service of a second cell, sending the control data through the broadcast cell.
H04W 72/30 - Resource management for broadcast services
H04W 76/40 - Connection management for selective distribution or broadcast
H04W 4/06 - Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]Services to user groupsOne-way selective calling services
H04W 72/27 - Control channels or signalling for resource management between access points
19.
Methods for encoding decoding of a data flow representing of an omnidirectional video
A method of encoding and a device for encoding a data stream representative of an omnidirectional video and, correlatively, a method for decoding and a device for decoding a data stream representative of an omnidirectional video. The data stream is representative of an omnidirectional video and includes encoded data of at least one base layer representative of a 2D or 3D video representative of a view of a scene captured by the omnidirectional video, and encoded data of at least one enhancement layer representative of the omnidirectional video. The least one enhancement layer is encoded by prediction relative to the at least one base layer.
H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
H04N 19/174 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
H04N 19/34 - Scalability techniques involving progressive bit-plane based encoding of the enhancement layer, e.g. fine granular scalability [FGS]
20.
Method for the reception of audio contents in a hybrid receiver and time-shifted playback, receiver and program associated with the method
A method of reception and playback of audio and/or audiovisual contents in a receiver device capable of receiving a determined audio and/or audiovisual stream coming from a one-way or two-way network. A determined stream broadcast on a network is received and the contents transmitted by the stream are played back in the receiver device. A first event external to the receiver device is detected. It triggers interruption of the playback of the content in progress and recording of the instant of the interruption. Then a second external event is detected. It triggers determining the availability of the unplayed part of the interrupted content and the display of a menu to a user that he should play back the unplayed part. The introduction of a command then triggers retrieval of the unplayed part and the playback of the retrieved content part.
H04N 21/472 - End-user interface for requesting content, additional data or servicesEnd-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification or for manipulating displayed content
H04H 20/24 - Arrangements for distribution of identical information via broadcast system and non-broadcast system
H04H 60/85 - Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over telephonic networks which are mobile communication networks
H04N 21/2387 - Stream processing in response to a playback request from an end-user, e.g. for trick-play
21.
Collinear antenna structure with independent accesses
The invention relates to an antenna structure for transmitting and/or receiving wavelengths of metric frequency or decimetric frequency, characterised in that it comprises n collinear antennas, each antenna comprising a radiating portion comprising a first succession of i coaxial radiating elements about a first axis alternating with at least an additional succession of i radiating elements about another axis, each antenna being independently powered by a coaxial cable, each antenna comprising at least one lower quarter-wave trap and at least one upper quarter-wave trap, at least a first antenna comprising at least one hollow core being configured to receive a coaxial cable intended for powering of another antenna collinear with the first antenna, at least one intermediate quarter-wave trap being arranged between two consecutive collinear antennas around a coaxial cable, and a terminal element.
A method for synchronizing a first data stream and a second data stream, at least one stream among the first stream and second stream being received by radiofrequency broadcasting and the other stream being received via an IP network, the first and second streams carrying the same service. The method involves receiving a value of the mean offset between the first stream and the second stream; storing the first stream in a first buffer and storing the second stream in a second buffer; extracting a first extract from the first buffer and a second extract from the second buffer, according to the mean offset value received; comparatively analyzing the first extract and the second extract in order to deduce a value of the actual offset between the first stream and the second stream; synchronizing the first stream and second stream according to the actual offset value obtained.
A method of transmitting an audio and/or audiovisual content to a receiver. The method starts with receiving a determined stream broadcast on a network and playing back the contents transmitted by the stream in the receiver. Then a first event external to the receiver is detected and triggers interruption of the playback of the content in progress and recording of the instant of the interruption. Sometime later, a second external event triggers a transmission, from the receiver to a remote server, of the instant dating the first event and of a request for resuming the playback of the interrupted content. A piece of information specifying the identifiers of the data packets of the content at the instant of the interruption is then transmitted from the remote server to the receiver. Finally, the receiver receives the identified data packets and replays the content of the packets.
The invention relates to a method and a device for generating a radar signal. The method is characterised in that it comprises a step (18) of acquiring a communication signal comprising frames assigned to communication and frames not assigned to communication, and a step (20) of inserting a radar pulse into at least one non-assigned frame of the communication signal, called radar frame, in order to form said radar signal.
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 7/02 - Details of systems according to groups , , of systems according to group
The invention relates to a method for transmitting redundancy data in an hybrid broadband/broadcast network system comprising a broadcast network dedicated to transmission of broadcast services and a broadband network dedicated to transmission of at least unicast services, the method being carried out in at least one network entity and comprising the following steps: —selecting (42) a transmission mode for transmitting redundancy data among a plurality of transmission modes supported by the broadband network; —obtaining (43) redundancy data, said redundancy data comprising information for decoding broadcast services broadcasted by the broadcast network; —transmitting (44), via at least one node of the broadband network, the obtained redundancy data according to the selected transmission mode.
H04L 1/18 - Automatic repetition systems, e.g. Van Duuren systems
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
H04L 67/02 - Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
H04W 4/06 - Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]Services to user groupsOne-way selective calling services
26.
METHODS OF DETERMINING THE MODE OF ESTIMATION OF DATA RECEIVED AND OF TOGGLING OF RECEPTION, CORRESPONDING COMPUTER PROGRAM PRODUCT, ESTIMATION DEVICE AND TERMINAL
The invention relates to a method of determining the mode of estimation of data received by a system comprising at least two radiofrequency receivers the method comprising the following steps: obtaining (E300) of a planning information item representative of a use over time of first and second carrier frequencies for a radio broadcasting of the data, the first and second carrier frequencies being distinct; determination (E310) of the mode of estimation of the data received as a function of the planning information item, the determination step taking into account a decision to recombine or not recombine first and second signals transposed to baseband delivered by the two radiofrequency receivers tuned respectively to the first and second carrier frequencies, the decision to recombine or not recombine being made on the basis of the planning information item.
The invention relates to a method for encoding and to a device for encoding a data flow representing an omnidirectional video, and, correlatively, to a method for decoding and to a device for decoding a data flow representing an omnidirectional video. According to the invention, the data flow representing an omnidirectional video comprises data encoded with at least one base layer representing a 2D or 3D video representing a view of a scene captured by the omnidirectional video, and data encoded with at least one enhancement layer representing the omnidirectional video, the at least one enhancement layer being predictively encoded in relation to the at least one base layer.
H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
H04N 19/30 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
H04N 19/172 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
H04N 19/174 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
H04N 19/103 - Selection of coding mode or of prediction mode
H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
H04N 19/46 - Embedding additional information in the video signal during the compression process
H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
H04N 19/187 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a scalable video layer
28.
ANTENNA WITH PARTIALLY SATURATED DISPERSIVE FERROMAGNETIC SUBSTRATE
HBBHBHHH), and adapted to supply the antenna, characterised in that the substrate is a dispersive ferromagnetic substrate referred to as a dispersive ferrite (1), the magnetic properties thereof being a high relative magnetic permeability of between 10 and 10,000 and a high magnetic loss tangent greater than 0.1, the antenna comprising means for gradually locally reducing the magnetic properties of the dispersive ferrite (1).
H01Q 3/44 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
29.
METHOD FOR OFFLOADING CONTROL DATA IN A MOBILE NETWORK
The invention relates to a method for sending control data in a hybrid wireless/broadcast network system, said network system comprising a broadcast network dedicated to transmission of broadcast services through at least a broadcast cell and a wireless network dedicated to transmission of at least a service through a plurality of cells, a cover area of the broadcast cell covering, at least partially, a cover area of a first cell and a cover area of a second cell among the plurality of cells, said method comprising: when control data related to a service of the first cell is identical to control data related to a service of a second cell, sending the control data through the broadcast cell.
H04W 4/06 - Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]Services to user groupsOne-way selective calling services
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
38 - Telecommunications services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Apparatus for the input, counting, collection, storage,
conversion, processing, entering, broadcasting and
transmitting of data, information, sounds, images and
signals; transmitting and receiving apparatus for radio and
television broadcasting and for long-distance transmission;
digital data transmitting and/or receiving apparatus;
antennas, electric and data transmission cables; radio
relay cables; devices for encoding and decoding images and
sound; terminals providing access to several media;
computer, data communication and telephone terminals,
especially for accessing global telecommunication networks
(the Internet) or private access networks (intranets);
video servers, fiber optic modems, fiber optic receivers;
car radios, digital radios, decoders, downloadable
electronic media. Administration of telecommunications networks, television
broadcasting networks, radio broadcasting networks, networks
for transmission of data, sounds, images, signals and
multimedia networks and radiocommunication networks;
monitoring of signals, images and information processed by
computers or telecommunication apparatus; subscription
services for transmission (broadcasting) networks for data,
voice, images, signals. Telecommunications, secure data transmission services,
communication via computer terminals, information
transmission via telematic means; transmission of
information by teletypewriters, via satellites, transmission
of messages, encoded images and sounds; data transmission
services, particularly packet transmission of information
and images, multimedia data transmission services;
messaging and e-mail services, mailing and transmission of
dispatches, computerized document exchange; downloading of
data; transmission of information held in data banks and
image banks, information dissemination by electronic means,
especially for global communication networks (such as the
Internet) or private or restricted access networks;
provision of access to a global computer network; provision
of telecommunication connections to a global computer
network, provision of access to search engines; Internet or
local area network connection services, Internet or local
area network access services, Internet address routing and
filtering services; provision of Internet access via
portals; rental of apparatus and installations for
telecommunications, television and radio broadcasting;
videophone services; communication services via telephone,
radio, radiotelephone, telegraph, as well as via all remote
data processing means, via interactive videography, and
particularly via computer terminals or peripherals or
electronic and/or digital equipment, by videophone, video
telephony; cellular telephone communication services;
sending and reception of data, signals and information
processed by computers or by telecommunication apparatus and
instruments; provision of access to national and
international server centers, provision of access time to
databases and computer or data communication database server
centers; providing access time to telephone,
radiotelephone, telematic networks, to a database server
center particularly for global communication networks (the
Internet) or to private or restricted access networks
(intranets); video-on-demand (VOD) services; services for
on-line rebroadcasting of television and radio programs;
downloading services for audio-video content, particularly
video-on-demand (VOD); radio or television program
broadcasting; electronic bulletin board services
(telecommunication services); news or information agencies;
broadcasting and transmission of programs via radio,
television, internet radio, podcast; broadcasting and
transmission of television programs and radio programs;
broadcasting (transmission) of television and radio programs
by means of telecommunications and broadband data
transmission; communications by fiber-optic networks;
telecommunication services provided via fiber-optic,
wireless and cable networks; telecommunication services,
namely, provision of fiber optic network services;
interconnection devices of wired technology, Wi-Fi,
Bluetooth, transmission (broadcasting services) of data,
sound, images, signals via fiber-optic networks; technical
support (consulting) services for operating and monitoring
of transmission networks for data, sound, images, signals
and radio and television broadcasting networks; technical
support services (advice) in the field of
telecommunications, data transmission networks for data,
sounds, images, signals, radio and television broadcasting
networks; technical consulting and advice in the field of
transmission networks for data, sounds, images, signals,
telecommunications, television and radio broadcasting
networks; rental of access time to a database server
center; provision of access to computer networks; providing
access to databases, texts, electronic documents,
audiovisual information by computer, telecommunication
networks and the Internet. Design (development) of telecommunication systems and
networks, transmission networks for data, sound, images,
signals and radio or television broadcasting networks; code
and format conversion between different types of text;
supervision (control, monitoring) of computer networks,
telecommunication networks, transmission networks for data,
sounds, images, signals and radio and television
broadcasting networks; design (research and development for
others) of computer networks, television broadcasting
networks, radio broadcasting networks and transmission
networks for data, sound, images, signals; development
(research and development for others) of television
broadcasting networks, radio broadcasting networks,
transmission networks for data, sound, images, signals.
31.
METHOD FOR SIGNALLING A SUBSTITUTION TO A TERMINAL, METHOD FOR SUBSTITUTION BY A TERMINAL, CORRESPONDING COMPUTER PROGRAM PRODUCTS, SYSTEM AND TERMINAL
The invention concerns a method for signalling, to a terminal, the substitution of a content broadcast via a broadcast network to which the terminal is connected, by a substitution content targeted at least for the terminal. Such a method comprises: • obtaining (E300) at least one packet of substitution information comprising a piece of temporal information indicating an execution time by the terminal of at least one action for the substitution of the broadcast content by the substitution content; • generating (E310) at least one event notification message inducing, immediately on receipt by the terminal, execution of the at least one action; and • inserting (E320), in a data stream carrying the broadcast content within the broadcast network, at least one event notification message at a temporal location depending on the piece of temporal information.
H04N 21/2668 - Creating a channel for a dedicated end-user group, e.g. by inserting targeted commercials into a video stream based on end-user profiles
H04N 21/433 - Content storage operation, e.g. storage operation in response to a pause request or caching operations
32.
METHOD FOR TRANSMITTING INTERRUPTED AUDIO CONTENT IN A HYBRID RECEIVER, SYSTEM, RECEIVER, AND PROGRAM ASSOCIATED WITH SAID METHOD
The invention relates to a method for transmitting audio and/or audio-visual content using a receiver device. The method begins with a step of receiving the specified stream, which is being broadcast over a network, and playing back the content transmitted by said stream using the receiver; next, a first event is detected, external to the receiver, which triggers interruption of the content playback in progress, wherein the moment of interruption is recorded. Shortly after, a second external event triggers the receiver to transmit, to a remote server, the time stamp of the first event as well as a request to resume playback of the interrupted content. Information which specifies the identifiers of the data packets of the content at the moment of interruption is then transmitted by the remote server to the receiver. Finally, the receiver receives data packets identified in this manner, and plays the content of said packets back. The proposed solution is therefore based on an entirely new and inventive approach which allows easy retrieval, from a remote server, of the portions of broadcast content which have not been played back on a receiver.
The invention relates to an antenna structure for transmitting and/or receiving waves with metric or decimetric frequency, characterised in that it comprises n collinear antennas, each antenna comprising a radiating portion comprising a first series of i radiating elements coaxial about a first axis, alternating with at least one additional series of i radiating elements coaxial about another axis, each antenna being independently powered by a coaxial cable, each antenna comprising at least one lower quarter wavelength trap and at least one higher quarter wavelength trap, at least one first antenna comprising at least one hollow core being configured to receive a coaxial cable intended for powering another antenna collinear with the first antenna, at least one intermediate quarter wavelength trap being arranged between two consecutive antennas that are collinear about a coaxial cable, and a terminal element.
H01Q 9/20 - Two collinear substantially straight active elementsSubstantially straight single active elements
H01Q 11/16 - Resonant antennas with parts bent, folded, shaped or screened or with phasing impedances, to obtain desired phase relation of radiation from selected sections of the antenna or to obtain desired polarisation effects in which the selected sections are collinear
H01Q 13/20 - Non-resonant leaky-waveguide or transmission-line antennas Equivalent structures causing radiation along the transmission path of a guided wave
H01Q 21/10 - Collinear arrangements of substantially straight elongated conductive units
34.
METHOD FOR RECEIVING AUDIO CONTENT IN A HYBRID RECEIVER AND FOR DELAYED PLAYBACK, RECEIVER, AND PROGRAM ASSOCIATED WITH SAID METHOD
The invention relates to a method for receiving and playing back audio and/or audiovisual content on a receiver device that can receive a specified audio and/or audiovisual stream emitted from a unidirectional or bidirectional network. First, a specified stream broadcast on a network is received, and the content transmitted by said stream is played back by the receiver device. A first event is detected, external to the receiver device, which triggers interruption of the content playback in progress, wherein the moment of interruption is recorded. Subsequently, a second external event is detected which triggers a step of determining the availability of the unplayed portion of the interrupted content, and a menu is displayed prompting a user to play back said unplayed portion. Introducing a command will then trigger recovery of the unplayed portion of the content and the playback of the portion of the content that has been retrieved. The solution therefore makes it possible to recover content, broadcast on an audio stream, the playback of which was interrupted, and to prompt a user to resume playback thereof later on.
H04H 20/24 - Arrangements for distribution of identical information via broadcast system and non-broadcast system
H04H 60/12 - Arrangements for counter-measures when a portion of broadcast information is unavailable wherein another information is substituted for the portion of broadcast information
H04N 21/414 - Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
H04N 21/433 - Content storage operation, e.g. storage operation in response to a pause request or caching operations
35.
TRANSMISSION OF REDUNDANCY DATA IN A HYBRID NETWORK SYSTEM
The invention relates to a method for transmitting redundancy data in an hybrid broadband/broadcast network system comprising a broadcast network dedicated to transmission of broadcast services and a broadband network dedicated to transmission of at least unicast services, the method being carried out in at least one network entity and comprising the following steps: - selecting (42) a transmission mode for transmitting redundancy data among a plurality of transmission modes supported by the broadband network; - obtaining (43) redundancy data, said redundancy data comprising information for decoding broadcast services broadcasted by the broadcast network; - transmitting (44), via at least one node of the broadband network, the obtained redundancy data according to the selected transmission mode.
The invention relates to processing a signal including a succession of DVB-T2 super-frames, and comprising at least one first part including DVB-T2 data, and one second part including non DVB-T2 data, and more particularly to reduce de-synchronization effects in that kind of signal between the DVB-T2 data reception and the non-DVB-T2 data reception. The invention proposes to process that signal so as to ensure signal transmission robustness above a first level (L1), and more particularly to process the signal at a beginning (Τ2', Τ4') of at least one of said first and second parts to ensure signal transmission robustness above a second level (L2) for said beginning, the second level being higher than the first level.
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
H04H 60/07 - Arrangements for generating broadcast informationArrangements for generating broadcast-related information with a direct linkage to broadcast information or to broadcast space-timeArrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
H04N 21/00 - Selective content distribution, e.g. interactive television or video on demand [VOD]
H04H 20/38 - Arrangements for distribution where lower stations, e.g. receivers, interact with the broadcast
The invention relates to a method for encoding an image from a sequence of digital images, said image being divided into a plurality of blocks of pixels processed in a defined order, said method comprising the following steps, implemented for a so-called current block of the current image, of predetermined dimensions: - predicting (E1) values of the current block on the basis of at least one previously processed block of a preceding or following image, called the reference image, - calculating (E2) a residual block (R) by subtracting the predicted values from the original values of the current block, - transforming (E6) the residual block by applying a transform, the transform belonging to a predetermined list of transforms; and - encoding (E7) the transformed residual block and a piece of information identifying the applied transform. According to the invention, the method further comprises a step (E3) of obtaining a piece of information representative of a temporal distance of the block in relation to the at least one reference image, and a step (E4) of obtaining a list of transforms from among a plurality of predetermined lists, at least according to the information obtained, and the transformation step applies a transform from the list obtained.
H04N 19/12 - Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
H04N 19/573 - Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
H04N 19/58 - Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
H04N 19/463 - Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
H04N 19/146 - Data rate or code amount at the encoder output
H04N 19/157 - Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
38.
ANTENNA WITH FERROMAGNETIC RODS WOUND AND COUPLED TOGETHER
The invention relates to a ferrite antenna having at least one main contour, comprising at least a first coil, termed the main coil (1), at least one ferromagnetic rod, termed the main ferromagnetic rod (4), and a tuning system (3), each main coil (1) being wound around a main ferromagnetic rod (4) and connected to the tuning system (3) comprising a capacitor connected in parallel with the coil (1). The ferrite antenna is characterised in that it further comprises a non-resonant secondary contour, comprising a secondary coil (2) electrically separated from each main coil (1) and a secondary ferromagnetic rod (5) around which the secondary coil (2) is wound, and in that each main ferromagnetic rod (4) and the secondary ferromagnetic rod (5) are arranged in parallel with one another in such a way as to allow a magnetic coupling of each main coil (1) with the secondary coil (2).
The invention relates to a ferrite antenna having at least one main contour, comprising at least a first coil, termed the main coil (1), at least one ferromagnetic rod, termed the main ferromagnetic rod (4), and a tuning system (3), each main coil (1) being wound around a main ferromagnetic rod (4) and connected to the tuning system (3) comprising a capacitor connected in parallel with the coil (1). The ferrite antenna is characterised in that it further comprises a non-resonant secondary contour, comprising a secondary coil (2) electrically separated from each main coil (1) and a secondary ferromagnetic rod (5) around which the secondary coil (2) is wound, and in that each main ferromagnetic rod (4) and the secondary ferromagnetic rod (5) are arranged in parallel with one another in such a way as to allow a magnetic coupling of each main coil (1) with the secondary coil (2).
The invention relates to a method for synchronising a first data flow and a second data flow implemented in a receiver, at least one flow among the first flow and second flow being received by radiofrequency broadcasting and the other flow being received via an IP network, the first and second flows transporting a same service, said method comprising: - receiving (201) a mean offset value between the first flow and the second flow; - storing (204.1; 204.2) the first flow in a first buffer memory and storing the second flow in a second buffer memory; - extracting (208) a first extract from the first buffer memory and a second extract from the second buffer memory, depending on the received mean offset value; - comparatively analysing (209) the first extract and the second extract in order to deduce an actual offset value between the first flow and the second flow; - and synchronising (210) the first flow and the second flow according to the actual offset value obtained.
H04H 20/18 - Arrangements for synchronising broadcast or distribution via plural systems
H04H 60/11 - Arrangements for counter-measures when a portion of broadcast information is unavailable
41.
METHODS FOR DETERMINING THE MODE OF ESTIMATION OF RECEIVED DATA AND FOR RECEPTION SWITCHING, CORRESPONDING COMPUTER-PROGRAM PRODUCT, STORAGE MEDIUM, ESTIMATING DEVICE, USE AND TERMINAL
The invention relates to a method for determining the mode of estimation of data received by a system comprising at least two radiofrequency receivers syntonized to a first reception frequency and to a second reception frequency different from the first reception frequency. According to the invention, the process comprises a step (E30) of determining the mode of estimation of the received data, delivering a decision to recombine the first and second signals transposed to baseband, which signals are delivered by the at least two radio frequency receivers, the decision taking into account at least one first piece of information (IQ1) and one second piece of information (IQ2) on quality, which pieces of information on quality are associated with a signal received on the first and second reception frequencies, respectively.
The invention relates to a processing method in a load distribution system, said method making it possible to distribute, among a first plurality of cache servers, the load generated by a plurality of requests emitted by a plurality of terminals that are spread across a plurality of geographic regions.
The invention relates to a processing system and method. According to the method of the invention, a terminal (UE) can be informed about the availability of at least one network at the location of the terminal that can broadcast multimedia content to the terminal, and a pre-determined plurality of networks can broadcast the multimedia content. The terminal is connected to a system (SYST) comprising a database storing, for each geographical area among a plurality of geographical areas, a list comprising the individual availability indicators of the networks among the pre-determined plurality of networks in the geographical area.
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
H04W 4/00 - Services specially adapted for wireless communication networksFacilities therefor
H04H 20/20 - Arrangements for broadcast or distribution of identical information via plural systems
H04H 20/24 - Arrangements for distribution of identical information via broadcast system and non-broadcast system
H04H 60/41 - Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
H04H 60/51 - Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of receiving stations
The invention relates to a method for enriching audiovisual content, a service platform comprising a local database storing associations between audiovisual content signatures and audiovisual content sources and associations between audiovisual content sources and contextual content: upon receiving a set of current audiovisual content signatures, updating (207) the local database by modifying the stored signatures in accordance with the current signatures received; upon receiving a set of at least one current contextual content item, updating (214) the local database by modifying the contextual contents in accordance with the set of at least one current contextual content item; upon receiving a request from a first user terminal comprising a candidate signature, identifying (221) a source of audiovisual content by comparing the candidate signature with the signatures stored in the local database; extracting (222) from the local database contextual content associated with the identified audiovisual content source; and transmitting (223) the extracted contextual content to the first user terminal.
H04N 21/439 - Processing of audio elementary streams
H04N 21/278 - Content descriptor database or directory service for end-user access
H04N 21/41 - Structure of clientStructure of client peripherals
H04N 21/462 - Content or additional data management e.g. creating a master electronic program guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
H04N 21/858 - Linking data to content, e.g. by linking an URL to a video object or by creating a hotspot
45.
METHOD OF ALLOCATING BIT RATE, DEVICE, CODER AND COMPUTER PROGRAM ASSOCIATED THEREWITH
The invention relates to a method of allocating bit rate between a first layer, termed a base layer and at least one second layer, termed the improvement layer, of a scalable coder able to encode a sequence of digital images, to a target global bit rate. According to the invention, the method comprises the following steps, implemented following the coding of a group of images of the sequence (GOP(i)): -obtaining (E1) of a measure of quality of coding of the improvement layer for the current group of images on the basis of a predetermined metric; - obtaining (E2) of a cost of the effective coding of the base layer and of a cost of the effective decoding of the at least one improvement layer for the current group of images; calculation (E3) of a ratio of bit rate between a said improvement layer and the global bit rate on the basis of the estimated coding costs; - estimation (E6) of a performance function at least on the basis of the bit rate ratio calculated, of the measure of quality obtained for the current GOP and of a predetermined curve model; and - determination (E8) of an optimum bit rate ratio in a predetermined ratio interval, on the basis of the estimated performance function and according to a criterion of maximization of the quality of said at least one improvement layer.
H04N 19/30 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
H04N 19/149 - Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
H04N 19/15 - Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
H04N 19/115 - Selection of the code volume for a coding unit prior to coding
H04N 19/177 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a group of pictures [GOP]
H04N 19/194 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding the adaptation method, adaptation tool or adaptation type being iterative or recursive involving only two passes
46.
SURFACE-WAVE ANTENNA, ANTENNA ARRAY AND USE OF AN ANTENNA OR AN ANTENNA ARRAY
The invention concerns an antenna intended to transmit and/or receive surface waves having a decametric, hectometric, or kilometric central wavelength ?0, characterised in that it comprises at least one horizontal wire radiating element (22) having a length of between 0.5 ?0 and ?0, and at least three vertical wire radiating elements (24a-24c) of the same length of between 0.03 ?0 and 0.1 ?0, disposed in a same plane and each comprising an upper end and a lower end, said upper ends being linked to the horizontal wire radiating element (22), said lower ends being suitable for being linked to a conductive medium (26) having a substantially horizontal surface. The invention also concerns an antenna array and a use of an antenna or an antenna array.
H01Q 1/04 - Adaptation for subterranean or subaqueous use
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
H01Q 9/44 - Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antennaResonant antennas with a plurality of elements having mutually inclined substantially straight portions
The invention relates to a surface wave antenna system, comprising at least one antenna (22) electrically shorted in the vertical plane, having vertical or elliptical polarisation and being suitable for emitting/receiving radiation in at least one frequency band centred on a central frequency f0 associated with a central wavelength λ0, said antenna (22) being connected to a conducting medium (28) having a substantially horizontal surface, the antenna system being characterised in that it further comprises at least one wired cover (30) of length greater than or equal to 0.8 λ0, electrically connected to at least one antenna (22) at the centre of the cover (30), and suitable for radiating at least at the central frequency f0 of the antenna (22).
H01Q 1/04 - Adaptation for subterranean or subaqueous use
H01Q 1/46 - Electric supply lines or communication lines
H01Q 9/36 - Vertical arrangement of element with top loading
H01Q 9/46 - Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antennaResonant antennas with a plurality of elements having mutually inclined substantially straight portions with rigid elements diverging from single point
H01Q 5/15 - Resonant antennas for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements
The invention concerns an antenna intended to transmit and/or receive surface waves having a decametric, hectometric, or kilometric central wavelength λ0, characterised in that it comprises at least one horizontal wire radiating element (22) having a length of between 0.5 λ0 and λ0, and at least three vertical wire radiating elements (24a-24c) of the same length of between 0.03 λ0 and 0.1 λ0, disposed in a same plane and each comprising an upper end and a lower end, said upper ends being linked to the horizontal wire radiating element (22), said lower ends being suitable for being linked to a conductive medium (26) having a substantially horizontal surface. The invention also concerns an antenna array and a use of an antenna or an antenna array.
H01Q 1/04 - Adaptation for subterranean or subaqueous use
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
H01Q 9/44 - Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antennaResonant antennas with a plurality of elements having mutually inclined substantially straight portions
49.
METHOD AND DEVICE FOR SECURING THE DIGITAL BROADCASTING OF AN AUDIOVISUAL CONTENT, COMPUTER PROGRAMS AND STORAGE MEDIA CORRESPONDING THERETO
Method of securing the digital broadcasting of an audiovisual content in a digital broadcasting network, said content being generated by a main and/or backup apparatus of a network head of said network. Said method, implemented within a device for securing said network head, comprises: - a step of recording (20) said audiovisual content, as it is generated, and - a step of providing (21), with a view to its broadcasting in said network, a previously recorded portion (Content 3) of said audiovisual content when a cutoff, of a duration greater than a predetermined threshold, of the generation by said main and backup apparatuses is detected by said securing device.
H04H 20/12 - Arrangements for monitoring, testing or troubleshooting
H04N 21/231 - Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers or prioritizing data for deletion
The invention relates to a surface wave antenna system (22), comprising at least one antenna (24) that is electrically short in the vertical plane, with vertical or elliptic polarization and emitting a radiation, said antenna (24) being linked to a conducting medium (28) exhibiting a substantially horizontal surface. The antenna system (22) being characterized in that it comprises furthermore at least one parasitic wire (30) extending in a direction substantially parallel to the surface of the conducting medium (28), electrically insulated from each antenna (24), and arranged in the vicinity of at least one antenna (24) in such a way as to be able to radiate by virtue of the current induced by said radiation of this antenna (24). The invention makes it possible to combine the resultants of each radiating element in such a way as to control the radiation pattern in the vertical plane.
H01Q 9/00 - Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
The invention relates to a surface wave antenna system (22), comprising at least one antenna (24) that is electrically short in the vertical plane, with vertical or elliptic polarization and emitting a radiation, said antenna (24) being linked to a conducting medium (28) exhibiting a substantially horizontal surface. The antenna system (22) being characterized in that it comprises furthermore at least one parasitic wire (30) extending in a direction substantially parallel to the surface of the conducting medium (28), electrically insulated from each antenna (24), and arranged in the vicinity of at least one antenna (24) in such a way as to be able to radiate by virtue of the current induced by said radiation of this antenna (24). The invention makes it possible to combine the resultants of each radiating element in such a way as to control the radiation pattern in the vertical plane.
The invention concerns a method for distributing digital documents by a headend to a plurality of distribution areas in order to be received by media servers moving in a transport means. An optimisation server has identifiers of digital documents to be distributed. First, a roaming media server transmits, to the optimisation server, a first list of documents already stored in the memory of same and an identifier of the distribution area where the transport means is located. Next, the optimisation server selects a second list of identifiers of documents that are not already stored in the memory of the roaming media server, and said second list of identifiers is transmitted to the headend in order for the documents to be distributed in the distribution area where the roaming media server is located. The roaming media server receives distributed documents when the transport means is located in the distribution area and stores them in the memory of same. Finally, the media server transmits a stored document to a terminal present in the transport means.
H04N 21/214 - Specialised server platform, e.g. server located in an airplane, hotel or hospital
H04N 21/232 - Content retrieval operation within server, e.g. reading video streams from disk arrays
H04N 21/414 - Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
H04N 21/258 - Client or end-user data management, e.g. managing client capabilities, user preferences or demographics or processing of multiple end-users preferences to derive collaborative data
53.
Method for generating a time marking for synchronous terrestrial broadcasting
A method for generating time marking for synchronous terrestrial broadcasting in at least one single-frequency zone of at least one audiovisual stream via at least one connection in which the at least one audiovisual stream is multiplexed with at least one other audiovisual stream broadcast via the at least one connection, the method including: inserting packets including at least one item of information representing a common reference clock, detecting at least one packet including information representing the number of days elapsed since a predetermined date, calculating the number of loopbacks of a counter during a given period, updating the counter at each packet of the audiovisual stream transmitted, inserting at least one packet including the value of the updated counter in the audiovisual stream in order to form a modified audiovisual stream and transmitting the modified audiovisual stream.
H04N 7/173 - Analogue secrecy systemsAnalogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
H04N 21/236 - Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator ] into a video stream, multiplexing software data into a video streamRemultiplexing of multiplex streamsInsertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rateAssembling of a packetised elementary stream
H04N 21/234 - Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
H04N 21/23 - Processing of content or additional dataElementary server operationsServer middleware
H04H 20/67 - Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
H04H 60/40 - Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast time
The invention relates to a method for transmitting linear audio and/or video content from a broadcast server to a plurality of terminals by using the Wifi network. First, the broadcast server transmits the requested content to a first terminal, in the form of a data packet stream. Next, a second terminal transmits a request to the broadcast server to receive the same content via the Wifi network, the reception of said request triggering the transmission, by the broadcast server, of a message identifying the first terminal as the terminal transmitting said content. The second terminal then transmits a request to receive said content to the first terminal in order to receive said content via a peer-to-peer link. In this way, part of the load of managing the transmission of broadcast content is transferred to the level of the network terminals, and the resources of the Wifi server are thus used less.
H04N 21/63 - Control signaling between client, server and network componentsNetwork processes for video distribution between server and clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB'sCommunication protocolsAddressing
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
H04N 21/436 - Interfacing a local distribution network, e.g. communicating with another STB or inside the home
H04N 21/4788 - Supplemental services, e.g. displaying phone caller identification or shopping application communicating with other users, e.g. chatting
55.
METHOD AND DEVICE FOR SUPPLYING A DATA STREAM, METHOD AND DEVICE FOR PROCESSING A DATA STREAM, CORRESPONDING COMPUTER PROGRAMS AND STORAGE MEDIA
The invention proposes a method for supplying a data stream intended for being broadcast in a digital broadcast network, the method being implemented in a headend of said broadcast network and including the following steps: obtaining at least one source multimedia stream including at least one service to be broadcast; segmenting said at least one source multimedia stream into a plurality of separate files that have a configurable fixed duration and are identified in a unique manner, referred to as "chunks"; processing said chunks of said plurality, supplying said stream of data capable of being broadcast in said broadcast network, said processing including a sub-step of concatenating a plurality of available chunks at a given moment in time in a data container provided with a header, said header including for each chunk the identifier of the service to which it belongs and the size thereof.
H04N 21/2343 - Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
H04N 21/4402 - Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
The invention relates to a wide frequency band antenna structure (10), having polarisation in a favoured direction, termed vertical, suitable for transmission and/or reception of signals of wavelengths between a minimum wavelength and a maximum wavelength. The antenna structure comprises a ground plane (1), extending in a plane perpendicular to said vertical direction, termed the horizontal plane, and a radiating structure comprising a first metallic strip (21) and a second metallic strip (22), arranged vertically and substantially parallel to one another, the second metallic strip (22) being connected to the ground plane (1) and substantially perpendicular to the ground plane (1), and a radiating loop, comprising a plurality of radiating strips, a first end of the loop being connected to the first metallic strip (21) and a second end of the loop being connected to the second metallic strip (22).
H01Q 1/32 - Adaptation for use in or on road or rail vehicles
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 9/40 - Element having extended radiating surface
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
57.
METHOD AND DEVICE FOR SYNCHRONIZING DATA, METHOD AND DEVICE FOR GENERATING A FLOW OF DATA, AND CORRESPONDING COMPUTER PROGRAMS
The invention relates to a method for synchronizing data, via a broadcast network comprising at least one fixed transmitter and a plurality of broadcast sites. According to the invention, such a synchronization method uses the following steps, at at least one of the broadcast sites: - obtaining (31) a delay, referred to as absolute delay, determined from the geographic location of said broadcast site; - determining (32) an additional delay, by subtracting said absolute delay from a fixed delay shared by said broadcast sites in said network; - resetting (33) at least one time datum or at least one portion of a data stream from said fixed transmitter, applying said additional delay to said time datum or to said portion of said data stream.
The invention relates to a device for access to a service platform for at least one digital screen (12.1, 12.2) comprising: - a downlink radio interface (21) for receiving digital contents that are radio-broadcast from a service platform; a filtering unit (22) for selecting at least one digital content from among the digital contents received on the radio interface unit, as a function of an identifier of the access device; - a storage unit (26) for storing said at least one digital content selected; and - a management unit (25) for selecting a first digital content if the storage unit stores several digital contents, so as to trigger the reading of said first digital content and to transmit the first digital content selected to the digital screen (12.1, 12.2) via a transmission interface (28).
H04N 21/6543 - Transmission by server directed to the client for forcing some client operations, e.g. recording
H04N 21/258 - Client or end-user data management, e.g. managing client capabilities, user preferences or demographics or processing of multiple end-users preferences to derive collaborative data
H04N 21/432 - Content retrieval operation from a local storage medium, e.g. hard-disk
H04N 21/4335 - Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions
H04N 21/45 - Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies or resolving scheduling conflicts
59.
METHOD OF ESTIMATING A CODING BITRATE OF AN IMAGE OF A SEQUENCE OF IMAGES, METHOD OF CODING, DEVICE AND COMPUTER PROGRAM CORRESPONDING THERETO
The invention relates to a method of estimating a coding bitrate of an image (100) of a sequence of images implementing a bitrate model according to a so-called ρ-domain approach such that R(ρ) = θ(1 - ρ), where: - R denotes said bitrate, - ρ denotes a percentage of zero coefficients in at least one coding residual for said image, after transformation (107a) and quantification (107b) of said residual, said residual being obtained by differencing between a block of said image and a prediction of said block, - θ denotes a slope parameter of said bitrate model. According to the invention, such a method of estimating comprises a step of calculating said slope parameter θ taking account of a surface area of said coding residual(s) coded for said image.
H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
H04N 19/115 - Selection of the code volume for a coding unit prior to coding
H04N 19/126 - Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
H04N 19/172 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
H04N 19/18 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
H04N 19/147 - Data rate or code amount at the encoder output according to rate distortion criteria
H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
H04N 19/14 - Coding unit complexity, e.g. amount of activity or edge presence estimation
H04N 19/19 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding using optimisation based on Lagrange multipliers
H04N 19/196 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
H04N 19/149 - Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
60.
METHOD FOR GENERATING A TIME STAMP FOR A SYNCHRONOUS TERRESTRIAL BROADCAST
The present invention relates to a method for generating a time stamp for a synchronous terrestrial broadcast, within at least one Single Frequency Network, of at least one audio-visual stream via at least one link wherein the at least one audio-visual stream is multiplexed with at least one other audio-visual stream broadcast by the at least one link. The method includes: - inserting (E401) packets comprising at least one piece of information representing a common reference clock; - detecting at least one packet comprising a piece of information representing the number of days elapsed since a predetermined date; - calculating the number of loopbacks from a counter during a predetermined duration; - updating the counter at each packet of the audio-visual stream transmitted; - inserting (E402) at least one packet comprising the value from the counter that is updated into the audio-visual stream so as to form a modified audio-visual stream; and - transmitting (E403) the modified audiovisual stream.
H04N 21/236 - Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator ] into a video stream, multiplexing software data into a video streamRemultiplexing of multiplex streamsInsertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rateAssembling of a packetised elementary stream
H04H 20/67 - Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
61.
SERVER FOR CREATING A LINK BETWEEN A TELEVISION AND A USER ACCOUNT
The invention concerns a data processing method implemented in a server for creating a link (2) capable of communicating with at least one application server (4), comprising the following steps: -on receipt of a first link creation request comprising at least one first identifier specific to a connected display device, sending an item of graphical information to the connected display device; -receiving, from a user device (3), a second link creation request comprising the first identifier specific to the connected display device and a second identifier specific to a user; -storing, in a table, at least one correspondence between the first identifier specific to the connected display device and the second identifier specific to the user.
G06Q 20/02 - Payment architectures, schemes or protocols involving a neutral third party, e.g. certification authority, notary or trusted third party [TTP]
H04N 21/25 - Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication or learning user preferences for recommending movies
H04N 21/478 - Supplemental services, e.g. displaying phone caller identification or shopping application
62.
METHOD FOR RADIOELECTRIFYING AN URBAN FURNITURE OBJECT AND OBJECT RADIOELECTRIFIED IN THIS WAY
The invention relates to a method for radioelectrifying an urban furniture object and to an object radioelectrified in this way. According to the invention: said object (I) is made from at least one post (2) consisting of an electroconductive material, said post being at least partially hollow and at least approximately vertical; and at least two superimposed parts (2I, 2S), which are electrically insulated from each other, are arranged in said post (2) in order to form an antenna with an omnidirectional radiation pattern in the horizontal plane.
The invention relates to a terminal for receiving TPEG data, including: a memory (23) storing a single static IP multicast address for broadcasting TPEG data; and a unit (21) for accessing a first IP network, wherein the access unit is capable of emitting a subscription request for said IP multicast address, and for receiving TPEG data or a link to TPEG data in response to the request.
H04W 4/04 - in a dedicated environment, e.g. buildings or vehicles
H04W 4/06 - Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]Services to user groupsOne-way selective calling services
64.
METHOD AND DEVICE FOR FEEDING A PORTION, WHICH IS ALREADY BROADCAST, OF A MULTIMEDIA STREAM, CORRESPONDING USER TERMINAL, COMPUTER PROGRAM AND STORAGE MEDIUM
The invention relates to a method for feeding, to a user terminal, a portion that is already broadcast of a multimedia stream that is being broadcast in a digital broadcasting network, including a step of feeding said portion, by means of a remote server of said terminal, starting at a predetermined time position in said stream, via a communication network separate from said digital broadcasting network, including: a substep of receiving said stream and, for each received portion of said stream: encoding said received portion, feeding at least one independent content fragment; storing said fragment in a circular buffer memory area having a predetermined size; a substep of concatenating said fragments, starting with the fragment corresponding to said predetermined time position, feeding said portion of said stream in the form of a file to be downloaded by said terminal.
H04N 21/231 - Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers or prioritizing data for deletion
H04N 21/2387 - Stream processing in response to a playback request from an end-user, e.g. for trick-play
H04N 21/6373 - Control signals issued by the client directed to the server or network components for rate control
H04N 21/239 - Interfacing the upstream path of the transmission network, e.g. prioritizing client requests
H04N 21/472 - End-user interface for requesting content, additional data or servicesEnd-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification or for manipulating displayed content
H04N 21/845 - Structuring of content, e.g. decomposing content into time segments
65.
METHOD AND DEVICE FOR PROVIDING A MULTIMEDIA CONTENT, AND CORRESPONDING SOURCE BROADCASTING DEVICE, USER TERMINAL, COMPUTER PROGRAM AND STORAGE MEDIUM
The invention relates to a method for providing at least one multimedia content (11) to at least one user terminal, said multimedia content being broadcast at a pre-determined throughput in the form of a multimedia stream (10) in a digital broadcasting network. According to the invention, the method includes a step (120) comprising the provision of the multimedia content by a remote server of the at least one user terminal, from a pre-determined time position in the multimedia content, via a communication network different from the digital broadcasting network.
H04N 21/231 - Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers or prioritizing data for deletion
H04N 21/2387 - Stream processing in response to a playback request from an end-user, e.g. for trick-play
H04N 21/6373 - Control signals issued by the client directed to the server or network components for rate control
66.
METHOD AND MODULE FOR SWITCHING FROM A FIRST PROGRAMME TO A SECOND PROGRAMME, AND CORRESPONDING BROADCASTING METHOD, HEADEND, COMPUTER PROGRAM AND STORAGE MEDIUM
The invention concerns a method for switching from a first programme to a second programme in a broadcast network implementing a headend and at least one receiver. According to the invention, such a method implements the following steps, in at least one of the receivers: - detection (31), in a signal carrying the first programme, of a specific audio fragment intended to effect a transition between two programmes; - replacement (32), in the signal, of the first programme by the second programme, in case of positive detection.
H04N 7/08 - Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band
H04H 20/10 - Arrangements for replacing or switching information during the broadcast or during the distribution
H04H 60/58 - Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups or of audio
H04N 21/222 - Secondary servers, e.g. proxy server or cable television Head-end
H04N 21/8358 - Generation of protective data, e.g. certificates involving watermark
67.
METHOD FOR THE ELECTROMAGNETIC DECOUPLING OF AN ANTENNA AND THE SUPPORTING POLE THEREOF, AND CORRESPONDING SUPPORTING POLE
The invention relates to a method for the electromagnetic decoupling of a substantially vertical support pole (1) made of en electrically conductive material and an antenna (2) which emits, in a frequency band centred on a central frequency, waves having an at least partially vertical polarisation, and which is supported by said supporting pole (1), characterised in that said antenna (2) is mounted on said pole (1) by a connection arm (4) and in that at least two electromagnetic decoupling devices (3) are arranged on the supporting pole (1) between the antenna (2) and the pole (1), including at least one decoupling element (17) conducting electromagnetic waves having a wavelength that is one fifth to one third of the wavelength of the waves emitted by the antenna (2) at the central frequency, at least a first device (3) being arranged on the pole (1) above said connection arm (4) and at least a second device (3) being arranged on the pole (1) below said connection arm (4), so as to neutralise the currents induced in the pole (1) by the waves emitted by said antenna (2).
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
68.
METHOD FOR TRANSMISSION BY OPTIMAL DIFFUSION OVER A SINGLE FREQUENCY NETWORK
The invention relates to a method for transmission by optimal diffusion over a single frequency network (SFN) in which a plurality of transmitters transmit signals to receivers according to one transmission configuration among a plurality of transmission configurations, characterised in that said method comprises the transmission of one or more test-message samples, each one of which corresponds to a configuration to be tested, selected among at least some of the possible transmission configurations, each test-message sample having a header which enables the transmission configuration to which said sample corresponds to be identified, as well as said test samples to be received and decoded by at least some of said receivers in order to generate, for at least one of said test samples, at least one parameter that is representative of the reception quality of the corresponding transmission configuration. The invention also relates to a test receiver, a head-end and a mobility management unit for implementing such a method.
H04H 20/12 - Arrangements for monitoring, testing or troubleshooting
H04H 20/67 - Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
69.
METHOD AND DEVICE FOR TIMESTAMPING A DATA STREAM IN A RADIO BROADCASTING NETWORK, METHOD AND DEVICE FOR INSERTING A SECONDARY DATA STREAM INTO A MAIN DATA STREAM, AND CORRESPONDING COMPUTER PROGRAM PRODUCTS AND STORAGE MEDIUM
The invention relates to a method for timestamping a data stream organised in the form of successive frames, in a digital radio broadcasting network, comprising a timestamping step, for at least one current frame of the data stream, said timestamping step including the following sub-steps and supplying at least one timestamped frame: determining at least one time-based datum; and adding at least one timestamping field to the current frame, said field comprising at least one time-based datum.
The invention relates to a method for timestamping a data stream organised in the form of successive packets, comprising a timestamping step, for at least one packet of the data stream, said timestamping step including the following sub-steps and supplying at least one timestamped packet: determining at least one time-based datum; and adding at least one timestamping field to the packet, said field comprising at least one time-based datum.
H04N 21/236 - Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator ] into a video stream, multiplexing software data into a video streamRemultiplexing of multiplex streamsInsertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rateAssembling of a packetised elementary stream
H04N 21/8547 - Content authoring involving timestamps for synchronizing content
H04H 20/10 - Arrangements for replacing or switching information during the broadcast or during the distribution
H04N 21/234 - Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
H04H 20/67 - Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
The invention relates to a method of establishing a session between a display device (1) and a local server (2) of a current local network (5), the method being implemented in a remote server (4) able to communicate with the display device. The remote server being able to store in association at least one local network public identifier with a local address of a local server, the method comprises the steps: - on receipt at the remote server of a local session establishment request from the display device, the request comprising a public identifier of the current local network, determining whether the public identifier of the current local network is associated with a local address of a local server in the remote server, and - if the public identifier of the current local network is associated with a local address of a local server in the remote server, despatching to the display device the local server local address associated with the public identifier of the local network, with a view to the establishment of a local session between the display device and the local server.
The invention concerns a method for broadcasting services to fixed and mobile receivers comprising, in a broadcast network suitable for broadcast to mobile receivers, the steps of: - defining a main broadcasting component, the main broadcasting component being dedicated to broadcasting to mobile receivers; - defining a complementary broadcasting component, the complementary broadcasting component being dedicated to broadcasting to fixed receivers; - combining the main and complementary broadcasting components in a single signal to be broadcast in the broadcast network.
H04H 20/08 - Arrangements for relaying broadcast information among terminal devices
73.
METHOD FOR GENERATING A STREAM OF DIGITAL PACKETS AT THE OUTPUT OF AN ENCODER, DEVICE CAPABLE OF GENERATING SUCH AN ENCODED STREAM, AND SYSTEM CAPABLE OF USING SUCH AN ENCODED STREAM
The present invention relates to a method for generating a stream of digital packets by means of an apparatus. The apparatus receives data packets sequentially transmitted in an isochronous stream and containing a series of data samples, e.g. sound data. The apparatus transmits a predetermined number of samples in frames that encode a series of samples starting with a first sample. The apparatus determines the value of a number identifying each sample contained in the input stream. The value of the number of said first sample in each frame is a multiple, possibly zero, of the predetermined number of samples. In this manner, regardless of the encoder that produces the frames, the latter contain the same samples without any shift from one encoder to the next. The switching between the output streams transmitted by a plurality of encoders can be carried out without any artifacts due to the transmission of the same samples.
H04N 21/24 - Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth or upstream requests
H04N 21/439 - Processing of audio elementary streams
H04N 21/442 - Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed or the storage space available from the internal hard disk
The invention concerns a method for processing digital content, implemented in a server (4) of a communication network. The method comprises: - on receipt of a request from a navigation device (2) comprising a first content identifier and a first user identifier, storing the first content identifier in association with the first user identifier in a database (42); - on receipt of a query request from a display device (1) and comprising a user identifier, comparing the user identifier with the first user identifier; - if the user identifier matches the first user identifier, transmitting the digital content associated with the first content identifier to the display device, in order for the digital content to be displayed by the display device; the query request being received regularly, according to a first given frequency, by the server from the display device.
H04N 21/472 - End-user interface for requesting content, additional data or servicesEnd-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification or for manipulating displayed content
DEVICE AND METHOD FOR RECEIVING A MULTIPLEXED STREAM BROADCASTING A PMT TABLE INCLUDING A DESCRIPTOR FOR IDENTIFYING DOCUMENTS TRANSMITTED IN PUSH MODE
The present invention relates to a device for receiving a multiplexed stream specified by the DVB-SI standard comprising at least one main stream comprising a first PAT table identifying at least one first PMT table containing at least the list of elementary streams of an audiovisual service currently being broadcast and intended to be reproduced in real time. The device determines in the content of the first PMT table a descriptor listing identifiers of elementary streams constituting a secondary stream. The secondary stream transmits at least one audiovisual document in PUSH mode without any time constraint. The device receives the audiovisual document by using the data included in the descriptor and records it so as to reproduce it later. The present invention also relates to the method of generating the multiplexed stream and the devices able to implement the method.
H04N 21/262 - Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission or generating play-lists
H04N 21/84 - Generation or processing of descriptive data, e.g. content descriptors
H04N 21/236 - Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator ] into a video stream, multiplexing software data into a video streamRemultiplexing of multiplex streamsInsertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rateAssembling of a packetised elementary stream
The antenna comprises a metal excitation loop (B1) to be positioned at a height (h) of at least about 1 m above the surface (SM) of a conducting medium (M) and a supply means (A, L1n) to be connected to the conducting medium. The perimeter of the loop is about one half of the operating wavelength, namely λ/2, in length. The loop comprises two approximately parallel portions (I1p-I1n, S1) which are at most about λ/50 apart and are capable of extending approximately parallel to said surface in a plane approximately perpendicular to said surface, currents of opposite direction flowing through said portions. The closest portion to said surface includes an aperture between ends (E1p, E1n) of the loop that are connected to the supply means. The antenna is better protected from space waves and it can be reduced in size by being folded up.
H01Q 1/04 - Adaptation for subterranean or subaqueous use
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
The antenna comprises a metal excitation loop (B1) to be positioned at a height (h) of at least about 1 m above the surface (SM) of a conducting medium (M) and a supply means (A, L1n) to be connected to the conducting medium. The perimeter of the loop is about one half of the operating wavelength, namely ?/2, in length. The loop comprises two approximately parallel portions (I1p-I1n, S1) which are at most about ?/50 apart and are capable of extending approximately parallel to said surface in a plane approximately perpendicular to said surface, currents of opposite direction flowing through said portions. The closest portion to said surface includes an aperture between ends (E1p, E1n) of the loop that are connected to the supply means. The antenna is better protected from space waves and it can be reduced in size by being folded up.
H01Q 1/04 - Adaptation for subterranean or subaqueous use
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
The invention relates to a compact antenna structure having a wide frequency band of at least one octave, comprising a flat square reflector (3) having sides equal to at most half the wavelength λ corresponding to the low frequency of the band, two symmetrical V dipoles (11 -12; 21 -22) associated with linear polarization and each having two metal horns, and hollow metal feet (13, 14; 23, 24) transverse to the horns. The dipoles are contained in the reflector by perpendicular projection onto the reflector. The horns and the feet have lengths less than λ/4. A coaxial feed network (4; 5) extends within the foot (13; 23) of one (11; 21) of the horns of each dipole and within the dipoles to feed the dipoles in phase. The antenna structure can be used in a group of antenna structures having dual polarization and an omnidirectional radiation diagram.
H01Q 9/28 - Conical, cylindrical, cage, strip, gauze or like elements having an extended radiating surface Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
H01Q 19/10 - Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
79.
Method for broadcasting a data stream based on time lag in a network including a plurality of transmitters, computer program product, head-end system for implementing said method
A method is provided for broadcasting a data stream in a network including at least two separate transmitters supplied by a head end. The stream is organized into data frames and includes at least one time marker. The method includes the following steps at the head end: obtaining a first time reference from an external source; obtaining a second time reference from the data stream received by the head end; comparing the first and second time references in order to determine a time shift between the first and second time references; and transmitting the time shift or at least one time marker modified on the basis of the time shift in order to compensate for a transport time variation between the head end and the transmitters.
G06F 15/16 - Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
80.
METHODS FOR BROADCASTING AND REBROADCASTING A SIGNAL IN A RADIO BROADCASTING SYSTEM, AND CORRESPONDING BROADCASTER AND RE-BROADCASTER, SIGNAL, AND COMPUTER PROGRAM IMPLEMENTING SAID METHOD
The invention relates to a method for broadcasting a digital signal from a main broadcaster (41) to at least one secondary broadcaster (42, 43) in a digital radio broadcasting network. According to the invention, the method implements the following steps at the main broadcaster (41): generating at least one marking packet corresponding to a cutaway order, a marking packet including a cutaway identifier and a piece of cutaway time information; and transmitting said at least one marking packet and said digital signal.
The invention relates to a method for inserting a digital file, said file including at least one digital data set (E1) which includes a first number of bits ((Nb(E1)), in a multimedia data transport stream (TS) in the context of digital multimedia broadcasting (DMB), said method including determining (120), in at least one transport packet (TS1) belonging to said multimedia data transport stream (TS), the presence of a redundancy of bits and, if the first number of bits is less than or equal to the number of bits for the occurrence of said redundancy, deleting (170) the bits, among said occurrences of redundancy, in a number corresponding to the first number of the insertion (180) of said digital data set (E1) into said transport packet (TS1). The invention also relates to the corresponding receiving method (200), devices (10, 1, 2), and computer program.
The invention relates to a method for timestamping a data stream organised into consecutive packets which are in turn organised into at least one mega-frame, each mega-frame containing a mega-frame initialisation packet (MIP). According to the invention, such a method includes the following steps for each packet of said stream: determining the duration of the packet from a predetermined size of said packet and a predetermined flow of said given stream; if said packet is a packet conveying a time and date table (TDT table), obtaining a first piece of time information (UTC time) contained in said time and date table (TDT table); if said packet is the first packet of a mega-frame, obtaining a second piece of time information (STS) contained in a mega-frame initialisation packet (MIP) previously received; and timestamping said packet based on the duration of said packet and on said first and second pieces of time information.
The invention relates to a method modifying the throughput of an original data stream organized in two successive packets. According to the invention, such a method of insertion comprises: - searching for at least one marker present in said original data stream; - extracting at least one item of information, carried by said marker, relating to the start-of-recurrence instant; - determining, for each of said packets of said original data stream, a time-stamping information item; - determining, on the basis of said information relating to the start-of-recurrence instant and of at least one of said items of information relating to time stamping, a start-of-recurrence packet in said original data stream; - modifying said original data stream by inserting or deleting at least one packet determined on the basis of said determined start-of-recurrence packet, delivering a modified data stream.
The invention relates to a method of managing a transmission network of MPLS type by sharing the bandwidth between several tunnels when a router is congested, characterized in that it implements for at least one tunnel a dynamic marking of the authorizations to send packets by adding a congestion cue, and the implementation of an algorithm for regulating access to said tunnels on the basis of the congestion cue according to an algorithm in which a low throughput limit LLA and a high throughput limit HLA being allocated to each tunnel, there is for each tunnel; in the presence of a congestion cue, a decrease by a decrement DEC of the current throughput limit CLA as long as it is greater than LLA, in the absence of a congestion cue, an increase by an increment INC of the current throughput limit CLA as long as it has not reached HLA.
H04L 12/24 - Arrangements for maintenance or administration
85.
METHOD FOR BROADCASTING A DATA STREAM IN A NETWORK INCLUDING A PLURALITY OF TRANSMITTERS, COMPUTER SOFTWARE PRODUCT, HEAD END AND SYSTEM FOR IMPLEMENTING SAID METHOD
The invention relates to a method for broadcasting a data stream in a network including at least two separate transmitters supplied by a head end, said stream being organised into data frames and including at least one time marker. According to the invention, the method comprises the following steps at the head end: obtaining a first time reference from an external source; obtaining a second time reference from said data stream received by said head end; comparing said first and second time references in order to determine a time shift between said first and second time references; transmitting said time shift or at least one time marker modified on the basis of said time shift in order to compensate for a transport time variation between said head end and said transmitters.
A method is provided for receiving a multicarrier signal including a time-based succession of symbols, each including a plurality of multicarriers bearing data, at least one of said symbols including at least one reference pilot. The method includes the following steps: a first estimation of a propagation channel, in accordance with a first estimating technique taking into account the or said reference pilots; at least one second estimation of said propagation channel, in accordance with a second estimating technique different from said first technique; comparing said first and second estimations, delivering an error signal; detecting at least one interfering signal in said propagation channel, by analyzing said error signal.
A method of real-time transmission/reception of data in packets in an IP network between a server (S) and a client terminal (CT). On the server side (S), each packet (Pk) to be transmitted is assigned (A) a send continuity index (Ck) and each packet (Pk) is transmitted (B) successively together with its continuity index (Ck) to the client terminal (CT). On the client terminal side, any break in continuity of packet streams received is detected (D) on the basis of the continuity indices (Ck) associated with each of the packets received. On detecting a stream discontinuity (Ckr), at least one resend request (RR (Ckr, @CT) requesting the resending of at least one missing packet is transmitted (E) to the server (S), for as long as this or these missing packets has or have not been received by the client terminal (CT). Application to the transmission of isochronous data streams, multimedia data streams in an IP network.
A method of real-time transmission/reception of data in packets in an IP network between a server (S) and a client terminal (CT). On the server side (S), each packet (Pk) to be transmitted is assigned (A) a send continuity index (Ck) and each packet (Pk) is transmitted (B) successively together with its continuity index (Ck) to the client terminal (CT). On the client terminal side, any break in continuity of packet streams received is detected (D) on the basis of the continuity indices (Ck) associated with each of the packets received. On detecting a stream discontinuity (Ckr), at least one resend request (RR (Ckr, @CT) requesting the resending of at least one missing packet is transmitted (E) to the server (S), for as long as this or these missing packets has or have not been received by the client terminal (CT). Application to the transmission of isochronous data streams, multimedia data streams in an IP network.
According to the invention, each ground wave antenna of the network includes a ground plane (M1, PM2) buried essentially horizontally close to and under the ground surface (S), and a metallic excitation line (LE1, LE2) extending essentially in a straight direction parallel to and above the ground plane at about 1 m at least from the ground for radiating hectometric or kilometric ground waves. The network includes at least one interconnection means (LR) connecting first and second successive antennas of the network for supplying the second antenna with a non-radiated power from the first antenna that represents about 90 % of the power supplied to the first antenna. Each antenna is adapted to its specific impedance for radiating progressive waves. A phase-inversion underground feedback line (LR) can be used for resetting the phase of the waves emitted by two successive antennas.
H01Q 11/02 - Non-resonant antennas, e.g. travelling-wave antenna
H01Q 11/14 - Resonant antennas with parts bent, folded, shaped or screened or with phasing impedances, to obtain desired phase relation of radiation from selected sections of the antenna or to obtain desired polarisation effects
H01Q 21/08 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a rectilinear path
H01Q 5/15 - Resonant antennas for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements
H01Q 9/34 - Mast, tower, or like self-supporting or stay-supported antennas
H01Q 9/38 - Vertical arrangement of element with counterpoise
90.
METHOD FOR TIME-DELAYING A FLOW OF DIGITAL CONTENTS, AND RELATED DEVICE AND COMPUTER SOFTWARE PRODUCT
The invention relates to a method for delaying the broadcasting of a digital flow, said digital flow being conveyed by a plurality of datagrams each comprising a first destination address of network level flow, characterised in that it comprises the following steps: continuously capturing and recording said broadcasted datagrams within a temporary recording space, thus creating a recorded flow; continuously retransmitting said datagrams of said recorded flow after a predetermined period of time.
The invention relates to a method and a device for digital precorrection of a multichannel signal in which (A) the instantaneous power ( |Si| 2 ) of each signal (Si) supporting a channel is calculated and (B) the instantaneous total power ( |Si| 2T ) of the multichannel signal and the percentage of the instantaneous amplitude of each signal in relation to the instantaneous total amplitude of the hertzian signal Ri = |Si| / |Si|T. is calculated. A correction dependent on the percentage of the amplitude of this signal and the total amplitude of the multichannel signal ( CRi (Si)-» CSi) is applied (C) to each signal (Si). Application to all types of multichannel signals.
The invention relates to a radio broadcasting method for a first multicarrier digital signal (51) occupying a first frequency band adjacent to at least one second frequency band, each assigned to a second signal (52, 53). Pre-filtering (54, 55) is applied to the said first signal before its emission so as to attenuate the power of the said first signal in at least a first portion of the said first frequency band, adjacent to the said second frequency band(s).
H04H 20/46 - Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups
