A METHOD AND SYSTEM FOR PRIVACY-PRESERVING RECOMMENDATION TO RATING CONTRIBUTING USERS BASED ON MATRIX FACTORIZATION

A method includes: receiving a set of records, wherein each record in the set of records is received from a respective user and includes a set of tokens and a set of items, and wherein each record is kept secret from parties other than the respective user, receiving a recommendation request from a requesting user for a particular item, evaluating the set of records by using a garbled circuit based on matrix factorization, wherein the output of the garbled circuit includes a masked item profile for a particular item and a masked user profile for the requesting user, receiving an encrypted user profile from the requesting user, generating an encrypted recommendation for the particular item based on the encrypted user profile, and providing the encrypted recommendation to the requesting user, wherein the requesting user decrypts it to obtain the recommendation. An equivalent apparatus is configured to perform the method.

Local digital network, methods for installing new devices and data broadcast and reception methods in such a network

The invention relates to a local digital network comprising: at least one source device intended to broadcast data over the network; and at least one receiver device intended to receive said data. The source device uses a network active encryption key to encrypt data liable to be broadcast in the network and the receiver device contains: a network active decryption key for decrypting data encrypted using said active encryption key and at least one decryption key of the network for decrypting data encrypted with the aid of an encryption key used previously in the network. The invention also relates to the installing of new devices in such a network as well as the sending of data from a source device to a receiver device.

Secure pre-recorded digital medium

A secure pre-recorded medium and a method for descrambling encrypted content thereon. When a player wants to access the content, a secure processor on the medium verifies that the player has not been revoked, preferably by comparing an identity of the player with identities in a revocation list, after which a mutual authentication is performed. The secure processor then verifies that the player has the rights to access the content and provides the player with the key necessary to descramble the content, whereafter the player descrambles the content.

Large screen digital image projector

The invention relates to a projection system comprising: a polychromatic light source and at least one imaging assembly illuminated by an associated polychromatic illumination beam, and comprising: two separate colored wheels, respectively called first and second colored wheel; and three separate imagers, respectively called first, second and third imagers. At least one part of the polychromatic beam, called first source beam, illuminating the first colored wheel which separates said source beam into a first monochromatic beam and into a two-tone beam, said first monochromatic beam illuminating the first imager and said two-tone beam being transmitted toward the second colored wheel. The second colored wheel being illuminated by said two-tone beam and separating said two-tone beam into second and third monochromatic beams, respectively illuminating said second and third imagers respectively.

Video apparatus

A video apparatus has a digital decoder generating a first digital stream, a video source of a first analogue signal, a video encoder and a first video decoder connectable to the video source for generating a second digital stream based on the first analogue signal. A switch is coupled to the first video decoder and to the digital decoder to notably mix the second digital stream and the first digital stream into an output digital stream to the video encoder.

Method Of Encoding And Decoding An Image Sequence By Means Of Hierarchical Temporal Analysis

The method realizes a motion compensated temporal filtering (MCTF), the temporal filtering being replaced by an intra mode coding to obtain at least one low (L) or high (H) frequency picture if the current picture has a level of correlation with a lower previous picture at a threshold, the low frequency pictures obtained (L) being thus scaled to be adapted, at the energy level, to the pictures obtained by motion compensated temporal filtering, and comprises, at the end of analysis: a selection of the pictures obtained by intra coding of a picture of a low decomposition level with the additional condition, for the high frequency pictures, that this picture is derived itself from an intra coding. a calibration of the picture selected by carrying out at least one reverse step of the scaling step. The applications relate to video compression with temporal prediction.

Holographic disk medium with servo marks

The present invention relates to a holographic disk medium ( 1 ) with servo marks ( 7 ), and more specifically to a holographic disk medium ( 1 ) having a common reflective layer ( 3 ) for reflecting a servo beam ( 9 ) and object and reference beams ( 8 ). According to the invention, a holographic disk medium ( 1 ) with a recording layer ( 2 ) for recording holograms ( 6 ) and a reflective layer ( 3 ) for reflecting a servo beam ( 9 ) and object and reference beams ( 8 ), includes servo marks ( 7 ) which are located in the reflective layer ( 3 ) at least partly below the holograms ( 6 ), wherein the servo marks ( 7 ) are designed such that their influence on the object and reference beams ( 8 ) is minimized.

Reduction of phosphor lag artifacts on display panels

Since the phosphor lag effect results from the slowness of the green and red phosphors and since it is not possible to make these phosphors faster, the blue one has to be made slower in order to reduce the color trail effect. Therefore, a part of the blue component is artificially delayed. Only a certain percentage of the blue component of the actual frame is transmitted during the actual frame, whereas the rest of the blue component will be transmitted during the next frames. The dynamic false contour effect introduced by this video processing may be compensated by subfield shifting.

System for collating data from multiple sources to form a composite program guide for display

A video decoder system collates program guide information acquired from a variety of local and remote sources. Program guide information is received from a first source and a selectable program guide menu icon is displayed. A category of program guide information items from the first source is collated by a display attribute in response to selection of the menu icon and the collated program guide information items are displayed. The display attribute allocated to the category of program guide information items is common to both the category of items and to the menu icon. Codes identifying program categories may be converted to other codes using equivalence mapping information for classifying programs according to a master set of program categories. Composite program map information may be formed including new data identifiers allocated to program guide information items for use in retrieving the items from a second source.

Method and apparatus for controlling an external device by remapping keys on a user input device

An apparatus such as a television signal receiver controls an external device such as a digital recording/reproduction device via a digital data bus by remapping keys on a user input device. According to an exemplary embodiment, the apparatus includes an input/output terminal operative to enable signal transfer between the television signal receiver and an external device via a digital data bus. A processor is operative to detect a first command signal of a first control protocol from a user input device, and to detect one of first and second modes of the television signal receiver. The processor detects the first mode in response to making a connection between the television signal receiver and the external device via the digital data bus, and detects the second mode in response to terminating the connection between the television signal receiver and the external device via the digital data bus. The processor enables the input/output terminal to output a second command signal of a second ...

Apparatus and method for encoding and decoding signals

New capabilities will allow conventional broadcast transmission to be available to mobile devices. A method is described including the steps of receiving data, encoding the data using a first encoding process, inserting training data into the encoded data, and encoding the encoded data and the training data using a second encoding process. An apparatus is also described including a first encoder receiving at least a portion of data and encoding the portion of data using a first encoding process, a training data inserter inserting training data into the first encoded data, and a second encoder encoding the first encoded data and the training data using a second encoding process.

Holographic recording medium and pickup for this medium

A holographic recording medium with an improved servo structure is presented. The holographic recording medium has a hologram layer for storing holograms and a servo layer for positioning a light beam for reading and/or recording of a hologram relative to the holographic recording medium. The servo layer is an essentially flat dye recording layer. A holographic pickup for use with such a holographic recording medium includes a light source for generating a light beam, which interacts with the dye recording layer for recording servo information.

Method for generating an on-screen menu

A method for generating an on-screen menu comprising menu buttons and other menu items, e.g. help text, is characterized in that one or more groups of menu buttons or menu items are defined, wherein a group comprises one or more menu buttons or menu items and has associated a defined area on the screen. A state is assigned to a button, the state being enabled or disabled, wherein only an enabled button or item may be displayed, and wherein within a group not more than one button or item may be enabled. The state of a button can be changed by commands associated with other buttons.

Apparatus and method for reading and apparatus for reading and writing holograms

An apparatus for reading and writing holograms from and to a holographic storage medium uses an object beam and a reference beam both having a first coherence length and being guided along separate optical branches of an optical setup to be imaged to the holographic storage medium. The apparatus includes one or more elements for reducing the coherence length of the reference beam to a second coherence length for reading out a hologram from the holographic storage medium, wherein the second coherence length is shorter than the first coherence length.

Wireless video camera

The invention relates to a video camera system comprising a mobile video camera 1 and a base station 2 . The camera 1 comprises means of acquiring images and means of radio transmission of the acquired images. The base station 2 comprises means of radio reception for receiving the acquired images. The system comprises evaluation means AGC, MER, BER and 500 for evaluating the quality of the transmission between the camera 1 and the base station 2 , and display means 506 to 509 for displaying information QR relating to the quality of transmission.

Relaxed deterministic back-off method for medium access control

A method and apparatus are described including transmitting data if a slot count is equal to a triggering event, selecting a new triggering event responsive to a failed data transmission and replacing the triggering event with the new triggering event.

Local network and method of updating a device in a local network

A method of updating at least two interconnected devices in a local network, a local network comprising at least two interconnected devices and a method of operating a remote management client and a device in this local network are provided. A resource location information of an update archive is communicated from a remote management client in the local network to the other devices in said network. The devices participating in the update communicate participation acknowledgement messages to the remote management client. The participating devices determine whether a next one of a predefined sequence of update statuses is reached. They notify the other participating devices that this update status has been reached and pause until all other participating devices have notified that they also have reached the same update status.

Process for transmitting and processing an evolutive abstract in a television system, receiver and transmitter in such a system

The invention relates to a process for transmitting service information in a television system. The invention relates more particularly to the providing of an upgradeable summary tied to the broadcasting of an event. Versions of the summary are transmitted at certain moments in the service information. These versions are concatenated in the receiver so that the result of the concatenation constitutes a summary of that part of the event which has already been broadcast. The invention also relates to a receiver for receiving service information in such a television system, to the process for processing this service information at the level of this receiver and to the transmitter implementing the transmission process according to the invention.

Dynamic rate adaptation using neural networks for transmitting video data

An adaptative source rate control method and apparatus utilizing a neural network are presented for controlling a data transmission of a media object over a communication network. A back propagation method transmitting control parameters related to the operation of a communications network is used for to dynamically adjust the performance of the network, in view of network parameters being sourced to a point of transmission. The bit rate and quantization level of the data stream are dynamically adjusted and shaped by the neural network in response to control parameters.

Wide band voltage controlled crystal oscillator

A voltage controlled Colpitts type crystal oscillator includes a first crystal and a transistor coupled to the first crystal to provide positive feedback for generating an output oscillatory signal. A variable capacitance is coupled to the first crystal for producing a change in a frequency of the oscillatory signal when a corresponding change in the variable capacitance occurs. A first inductance is coupled in a resonant circuit that includes the variable capacitance and the first crystal having a value selected to provide a pulling range of at least 0.4% with respect to the frequency of the oscillatory signal. In one embodiment of the invention, a second crystal is coupled to the first crystal and included in the resonant circuit. An energy dissipating impedance is coupled in the resonant circuit to the first crystal for decreasing a Q characteristic of the first crystal to increase the pulling range of the oscillator. The first inductance separates the second crystal from each of the ...

Device and method for recording multimedia data

The invention relates to a device and a method for recording multimedia data received in programme form. The device comprises temporary storage device designed to continuously record the multimedia data received in programme form and permanent storage device, capable of selectively transferring programmes from the temporary storage device to the permanent storage device.

Connection of a plasma panel to its electrical power supply in an image display device

An image display device is disclosed including a metallic support plate carrying, on its front face, a plasma discharge display with an array of adjacent pairs of electrodes and, on its back face, a power supply. The power supply circuit of each pair of adjacent electrodes forms a current loop starting from the power supply and passing through the electrode then the electrode of the pair, the connection end of the electrode being linked to the power supply by means of a transverse electrical conductor placed on the front side of said metallic plate. According to the invention, the transverse conductor linked to the electrode forms a non-zero angle with said pair of electrodes. The differences in inductance between the various current loops of the display are thus reduced such that the differences in luminance between the various discharge regions of the plasma display are reduced.

Directional remote control

A remote control unit generates a first beam which a user points at one of a plurality of information appliances to select that appliance. After selecting the desired appliance, the user then actuates a button on a control keypad on the remote control unit to cause the unit to generate a second, modulated beam. The remote control unit modulates the second beam in accordance with a desired functionality of the information appliance to control the appliance accordingly.

Memory management algorithm for trellis decoders

An improved all-path traceback/forward trace system for use in managing the memory used in processing decoded survivor sequences produced by a trellis decoder network. The memory size is decreased to T*N, where T is a predetermined survivor memory depth and N is the number of states in the trellis. The latency value of the present system is equal to T. Both the memory requirement and latency value represent a 33% decrease in the value of similar parameters produced in a prior art APTFT system. An existing forward trace/path selection unit is modified to take advantage of the inherent nature of the forward trace process in order to simplify the decoding system. A generalized version of the APTFT system permits greater flexibility in the choice of memory size and latency values needed to satisfy the requirements of a particular decoding system.

Method and apparatus for transmitting watermark data bits using a spread spectrum, and for regaining watermark data bits embedded in a spread spectrum

Spread spectrum technology is used for watermarking digital audio signals. To retrieve a watermark signal information bit from the spread spectrum at the receiver or decoder side, the received or replayed spectrum is convolved with a spreading function that is time-inverse with respect to the original spreading function. The pseudo noise sequences are modulated on carrier frequencies which are inserted at one or more frequency bands into the spectrum of an audio signal. The watermark signal decoder checks the frequency bands occupied by such carriers. The frequency band occupation information is signaled in advance, i.e. is transmitted already together with the frame data for the current frame, such that the watermark signal decoder knows before processing the following audio signal frame which carrier frequencies are occupied and must be used for the corresponding carrier demodulation, and which carrier frequencies need not be checked and demodulated.

Line frequency switching regulator

In a switch mode power supply, a mains supply voltage source is coupled to a rectifier for producing an input supply voltage. The rectified input supply voltage is coupled unfiltered to an input of the SMPS. A switching power transistor having a controllable duty cycle is controlled by a duty cycle modulated signal for producing a regulated output supply voltage from the rectified input supply voltage. The periodic waveform of the mains supply voltage is used to establish the timings of the duty cycle modulated signal. In each cycle, current flow is initiated in the transistor, when the transistor is already fully turned on and a voltage developed between its main current conducting terminals is low or close to zero volts. When the output supply voltage attains the required level the transistor is turned off. Hysteresis is provided for preventing the transistor from turning on again in the same cycle, after it has been turned off.

Video coding method with non-compressed mode and device implementing the method

The present invention relates to a video coding method comprising a mechanism enabling the activation or deactivation of the compression of video stream macroblocks to be coded according to the efficiency of compression and operating in at least two modes, the first coding mode being normal and the second mode being non-compressed, wherein said method comprises: in normal coding mode, the macroblock being processed is compressed by a coding loop then by an entropic coder, said compression being considered efficient if the size occupied by the macroblock after compression is notably less than the size that the macroblock occupies without compression, in the case where the compression of the macroblock being processed is not efficient, the non-compressed mode is activated, said non-compressed mode being characterized by the fact that the samples corresponding to the macroblock being processed reconstructed by the local decoder of the coding loop are transmitted without compression at the ...

Apparatus and method for grid navigation

An apparatus and method for efficient display of, and navigation through, a large database by displaying and selecting objects, e.g., graphic elements, in a grid associated with the content of the database are provided. The method includes providing a first subset of graphic elements from a database of graphic elements, the first subset of graphic elements arranged in a grid pattern, adjusting a position of one of the graphic elements in the first subset on the display in response to a user input indicating movement of the one graphic element in a horizontal and vertical direction, and providing a second subset of graphic elements from the database of graphic elements, the second subset of graphic elements including the one graphic element in the first subset at the point central on the display.

Applications manager with variable management instruction set

An information processing system or a digital decoder (5) makes it possible to process data originating from at least one application (3), for example, by way of a bouquet of television programs, and comprises an operating system (1), a virtual machine (10) and an application manager (4) executing one or more variable management instruction sets (11) so as to influence the operating system (1) and the virtual machine (10) during the execution of the application.

Device for processing a stream of data words

State of the art processor systems, esp. in embedded systems, are not able to process data under real-time conditions especially with throughput rates near 10 Gbps. So, when using interfaces like PCI Express (PCIe) or Infiniband or 10 G-Ethernet for 10 Gbps data throughput, special data-paths have to process the high throughput rate data. But tasks like connection management or time uncritical control messaging are better manageable by a processor. According to the invention it is proposed a kind of multiplexer architecture that is needed to split between control and data-path access for a PCI Express based architecture.

Method and system for three-dimensional model acquisition

A system and method for acquiring geometric information from images includes a modulated light source configured to provide light energy at a rate unperceivable by the human eye. A camera is configured to acquire images at a rate at which a differential pair of images is obtained such that one of the pair of images includes light from the light source and the other image of the pair does not include light from the light source. A comparison module is configured to compare the differential pair of images to create a depth map for three-dimension model creation.

SYSTEM AND METHOD FOR TRINOCULAR DEPTH ACQUISITION WITH TRIANGULAR SENSOR

A depth acquisition system utilizes at least three sensors with at least one sensor in a non-colinear configuration to increase depth information. This configuration provides both vertical and horizontal depth information to be combined to enhance image quality, especially in three-dimensional image gathering. Vertical sensor pairs aid in determining disparities for horizontal edges and make depth estimations for horizontal edges more accurate.

Method and apparatus for detecting which one of symbols of watermark data is embedded in a received signal

Watermark symbol detection requires a detection metric for deciding at decoder side which candidate symbol is embedded inside the audio or video signal content. The invention provides an improved detection metric processing that achieves a reliable detection of watermarks in the presence of additional noise and echoes, and that is adaptive to signal reception conditions and requires a decreased computational power. This is performed by taking into account the information contained in the echoes of the received audio signal in the decision metric and comparing it with the corresponding metric obtained from decoding a non-marked audio signal, based on recursive calculation of false positive detection rates of peaks in correlation result values. The watermark symbol corresponding to the reference sequence having the lowest false positive error is selected as the embedded one.

Fault-resistant exponentiation algorithm

A method for performing a m-ary right-to-left exponentiation using a base x, a secret exponent d and a modulus N, wherein m is a power of 2. A device having a processor and m+1 registers R[0]R[m] in at least one memory: initializes register R[0] to h for a chosen value h, wherein the order of the value h is a divisor of m*(m1)/2, register R[m] to x(m1) and the registers other than R[0] and R[m] to the value h; updates register R[r] to R[r] times x, wherein r is the remainder of a division of d by (m1) mod N; obtains a working exponent q that is the quotient of the division of d by (m1); performs l iterations, starting at i=0, of: setting R[qi] to R[qi] times R[m] and raising R[m] to the power of m, where l is the length of q in base m and qi is the i-th digit of the representation of q in base m and ql1 is non-zero; verifies the correctness of the result by checking that R[m] equals the product of registers R[0]-R[m1] to the power of m1; and outputs the product of R[j]j, where 1jm1, only ...

AUXILIARY BUS TRANSITIONS ON A VIDEO SWITCHER

A mix-effects bank architecture of a video switcher having a plurality of video processing units; and an internal switcher routing matrix. The internal switcher routing matrix routing, a video source currently providing a video feed to an auxiliary output and a desired new source for the auxiliary output to a video processing unit that is not contributing towards video processing and routing an output of said video processing unit to said auxiliary output. The video processing unit that is not contributing towards video processing performs a transitional effect for the auxiliary output.

Backward looking robust header compression receiver

Robust Header Compression (ROHC) offers a way to compress packet header information for more efficient transmission of data. The compression is achieved through various confidence modes set up by the transmitter and the receiver. The Initialization and Refresh state (IR) is the first state of the compressor. This provides a complete, uncompressed context of the data that is being transmitted. In typically operation, the ROHC compressor will periodically transmit IR packets providing context information allowing the ROHC decompressor to decompress one or more packets following the IR packet. However, under certain conditions such as decompressor start-up, it is possible for the decompressor to miss an IR packet. Exemplary methods and apparatus are described in which a decompressor uses a later-received IR packet to decompress earlier packets for which the decompressor had not received context information.

Method and apparatus for synchronizing data streams containing audio, video and/or other data

Several data streams contain video, audio and/or other data. Some of the data streams are pre-recorded in a multiplex on a storage medium while other data streams are located out of the data stream multiplex on the storage medium. The data streams are synchronized using a navigation file (List_of_PlayItems), which comprises descriptors (PlayItems, SubPlayItems) pointing to parts of said data streams, wherein said descriptors define the arrangement in time for said data streams by means of data sub stream paths.

Broadcast router having a serial digital audio data stream decoder

A bi-phase decoder suitable for use in a broadcast router and an associated method for extracting subframes of digital audio data from a stream of digital audio data. Logical circuitry within the bi-phase decoder extracts subframes of the digital audio data by constructing a transition window from an estimated bit time, sampling the stream of digital audio data using a fast clock and applying the sampled stream of digital audio data to the transition window to identify transitions indicative of preambles of the subframes of digital audio data.

Fresnel lens, backprojection screen, and corresponding backprojection system and unit

The invention relates to a Fresnel lens. Each refractive structure of the lens is bounded by two surfaces, the second surface making a second angle with the normal to the plane of incidence. At least two zones of refractive structures are provided in which the second angle is equal to the entrance angle of a beam. Each first surface refracts the light along a direction parallel or not parallel to the axis of the lens depending on the zone. The invention also relates to a system comprising a folding mirror and a Fresnel lens, in which system the second angle is equal to the entrance angle of a parasitic ray obtained by reflection on the Fresnel lens and then on the mirror. The invention also relates to a corresponding back projection screen and a corresponding back projection unit.

Methods and devices for instruction level software encryption

A method of encrypting compiled computer code instructions to be decrypted instruction by instruction during execution. The computer code instructions are encrypted using a chaining mode so that an encrypted instruction depends on the values of the instruction, the value of the preceding instruction and a pseudo-random number. As it may happen that the instruction can be arrived at from more than one preceding instruction, at least one of the preceding instructions is associated with a random number compensator for use during decryption of the encrypted instruction, so that the decryption of the encrypted instruction yields the same result regardless of which the preceding instruction was. Also provided are an encryption device, a decryption device and method, and a digital support medium storing encrypted compiled computer code instructions.

Digital local network, notably digital home network, and method for creating and updating such a network

The local digital network comprises: access devices (1), for receiving data originating from outside the network and transmitting them at a point of the network; and presentation devices (2,3) for receiving the data flowing in the network and presenting them at a point of the network. The data flow in the network in encrypted form and all the devices of the network use a single key, the local key of the network, for the encryption and decryption of the data. Preferably, the local key of the network is formed by a pair of public and private keys. The purpose of this network is to make it possible to copy data in the local network whilst preventing pirate copies destined for other local networks.

Lаrgе sсrееn digitаl imаgе prоjесtоr

Тhе invеntiоn rеlаtеs tо а prоjесtiоn sуstеm соmprising: а pоlусhrоmаtiс light sоurсе аnd аt lеаst оnе imаging аssеmblу illuminаtеd bу аn аssосiаtеd pоlусhrоmаtiс illuminаtiоn bеаm, аnd соmprising: twо sеpаrаtе соlоrеd whееls, rеspесtivеlу саllеd first аnd sесоnd соlоrеd whееl; аnd thrее sеpаrаtе imаgеrs, rеspесtivеlу саllеd first, sесоnd аnd third imаgеrs. Аt lеаst оnе pаrt оf thе pоlусhrоmаtiс bеаm, саllеd first sоurсе bеаm, illuminаting thе first соlоrеd whееl whiсh sеpаrаtеs sаid sоurсе bеаm intо а first mоnосhrоmаtiс bеаm аnd intо а twо-tоnе bеаm, sаid first mоnосhrоmаtiс bеаm illuminаting thе first imаgеr аnd sаid twо-tоnе bеаm bеing trаnsmittеd tоwаrd thе sесоnd соlоrеd whееl. Тhе sесоnd соlоrеd whееl bеing illuminаtеd bу sаid twо-tоnе bеаm аnd sеpаrаting sаid twо-tоnе bеаm intо sесоnd аnd third mоnосhrоmаtiс bеаms, rеspесtivеlу illuminаting sаid sесоnd аnd third imаgеrs rеspесtivеlу.

Vidео аppаrаtus

А vidео аppаrаtus hаs а digitаl dесоdеr gеnеrаting а first digitаl strеаm, а vidео sоurсе оf а first аnаlоguе signаl, а vidео еnсоdеr аnd а first vidео dесоdеr соnnесtаblе tо thе vidео sоurсе fоr gеnеrаting а sесоnd digitаl strеаm bаsеd оn thе first аnаlоguе signаl. А switсh is соuplеd tо thе first vidео dесоdеr аnd tо thе digitаl dесоdеr tо nоtаblу miх thе sесоnd digitаl strеаm аnd thе first digitаl strеаm intо аn оutput digitаl strеаm tо thе vidео еnсоdеr.

METHOD FOR PACKET-SWITCHING TRANSMISSION OF MEDIA DATA AND DEVICE FOR PROCESSING MEDIA DATA

Network coding using Luby transform (LT) codes

VOLUME MARKING WITH LOW-FREQUENCY

IMAGER TO IMAGER RELAY LENS SYSTEM

SYSTEM AND METHOD FOR ADVERTISING A CURRENTLY AIRING PROGRAM THROUGH THE USE OF AN ELECTRONIC PROGRAM GUIDE INTERFACE

A METHOD AND APPARATUS FOR SELECTING AN ACCESS POINT OR RELAY NODE IN A MULTI-HOP WIRELESS NETWORK

METHOD AND DEVICE FOR CALCULATING DISTORTION OF A VIDEO BEING AFFECTED BY COMPRESSION ARTIFACTS AND CHANNEL ARTIFACTS

CIRCUIT BOARD FOR AN ANTENNA ASSEMBLY

Method of manufacturing an antenna and/or a network of antennas, antenna and/or network of antennas manufactured according to such a method

Recording media maintenance support

Method and apparatus for reproducing audio and/or video data from a removable storage medium

METHOD OF MANUFACTURING A PHOSPHOR SCREEN FOR A CRT

Sample rate converter

A RADIO AND BANDWIDTH AWARE ROUTING METRIC FOR MULTI-RADIO MULTI-CHANNEL MULTI-HOP WIRELESS NETWORKS

METHODS FOR DISTRIBUTING CONTENT IN MULTI-ROOM ENVIRONMENT

METHOD FOR REDUCING CHANNEL CHANGE TIMES IN A DIGITAL VIDEO APPARATUS

REMOTE CONTROL DEVICE AND METHODS FOR IMPROVING LATENCY IN A REMOTE CONTROLLED SYSTEM

DECODING METHOD AND APPARATUS ENABLING FAST CHANNEL CHANGE OF COMPRESSED VIDEO

Autostereoscopic display using time-sequential method

Method of embedding of an image with a color transform

Process for estimating a dominant motion between two frames

System for selectively extinguishing a light source that illuminates a television power button

Method for processing a video sequence for preventing unauthorized recording and apparatus implementing said method

Wireless signal loss detection

An apparatus included a receiver for receiving an audio file signal, a decoder for demodulating the audio file signal; and a processor for polling the decoder for a loss of a phase lock in the demodulating of the audio file signal. The processor resets and reinitializes the decoder in response to the loss in the phase lock loop. The receiver includes 90 MHz radio frequency reception circuit. The decoder comprises an eight-to-four modulation EFM decoder. In the preferred embodiment, the decoder outputs a digital audio stream that conforms to a known I2S audio stream format.

Predistorter for use in a wireless transmitter

A wireless radio frequency (RF) transmitter includes a power amplifier and a predistorter for injecting a distortion signal into an RF signal prior to amplification for use in linearizing the power amplifier; wherein the predistorter includes a phase shifter operating at less than twice a carrier frequency of the RF signal.

Method and system for color correction for three-dimensional (3D) projection

A method and system are disclosed for producing a color-corrected stereoscopic film for three-dimensional (3D) projection. Based on color measurements performed with different optical configurations of a projection system, at least one dye density adjustment can be determined for reducing discoloration in projected stereoscopic images that arises from one or more optical components in the projection system.

Apparatus and method for detecting free ATSE channels

A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and an Advanced Television Systems Committee (ATSC) signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an ATSC signal was not detected. The ATSC signal detector comprises a matched filter that matches to at least a modulated version of an ATSC field sync signal for detecting the presence of an incumbent ATSC broadcast signal.

Beam Shaper for an optical storage system

The present invention relates to a beam shaper and to an apparatus for reading from and/or writing to optical storage media using in such a beam shaper. According to the invention, a beam shaper for generating a first shaped light beam from an incoming light beam has a beam shaping element with an optical property that varies spatially over the profile of the incoming light beam.

METHOD OF DIGITAL CONTENT VERSION SWITCHING AND CORRESPONDING DEVICE

The present invention relates to the field of management of digital content switching and in particular to the optimization of digital content version switching in order to ensure smooth switching between different versions of digital content during rendering. Different versions are for example: an uncensored version and a censored version, a cinema version and a TV-series adaptation version of a same digital content, a version with inserted publicity and a version without, a trailer version and a cinema version, different language-dubbed versions.

Device for generating an encrypted key and method for providing an encrypted key to a receiver

A device for generating an encrypted master key. The device comprises at least one input interface configured to receive a receiver identifier, a service provider identifier and a master key for the service provider; a memory configured to store a secret of the device; a processor configured to: process the receiver identifier using the secret to obtain a root key, process the service provider identifier using the root key to obtain a top key and process the master key using the top key to obtain an encrypted master key; and an output interface configured to output the encrypted master key. Also provided is a method for providing an encrypted master key to a receiver. An advantage is that the device can enable a new service provider to provide services to a receiver using an already deployed smartcard.

Control device in a plasma display panel

To generate a rising or falling edge simultaneously on the electrodes Ys and Ysa of a plasma display cell, the invention provides for the use of the power recovery circuit of the control device in order to apply, to one of the electrodes Yas and Y, the rising edge applied to the other of the electrodes by a dedicated circuit.

Device and method for synchronizing different parts of a digital service

The invention relates to a reproduction device, with a device acting as a source of digital services. It also relates to a method of synchronizing two parts of a digital service in a system including a source device according to the invention and at least one reproduction device according to the invention. According to the invention, the reproduction device includes means for receiving the data forming at least a part of a digital service originating from a digital service source device, means for processing at least some of the data received, means for reproducing an output of at least a part of the digital service, the time for processing and reproducing the data introducing a delay in the output of the reproduced data. This device also includes communication means for informing the source device of the delay introduced.

Cell dependent multi-group hybrid automatic repeat request method for multicast in wireless networks

A method and apparatus are described including determining address using an access point address and a multicast group address, transmitting a recovery request message to a recovery server to request recovery data using the address and receiving the recovery data from the recovery server. Also described are a method and apparatus including receiving a registration message, transmitting a reply to the registration message, receiving a recovery request message, transmitting recovery data responsive to the recovery request message and transmitting a message to a recovery multicast group to determine status of the recovery multicast group.

Method of managing the recording of audiovisual documents in a terminal selected among a plurality of terminals, and an associated terminal

A communication network performs a method of managing recordings. The communication network comprises a plurality of audiovisual terminals furnished with recording means. The method comprises determining the most adapted terminal among the plurality for recording a specific document. Values of fit are calculated from attributes associated with the document and attributes associated with each terminal. The terminal whose value of fit is the greatest is selected and used for recording this document. The morality of the document and the maximum level of morality accessible from the terminal being compared in order to barre the recording of the document in a terminal if the morality level of this document is higher than the morality level of this terminal.

Scheduler apparatus employing a gopher agent for use in a television receiver

In a television system in which at least program title information for programs which are to be transmitted in the future is transmitted in advance to form a channel guide listing, apparatus is provided for searching the listing for specific user-entered information, and upon successful conclusion to the search, the apparatus schedules the tuning of the desired program, or in the alternative, notifies the viewer of the availability of the program. In those instances where descriptive text accompanies the program listing, apparatus of the invention performs a search of the text for a particular text string which may relate to the title, the star, the director, or the context of the program, among other search criteria.

Focus control for optical scanner

The present invention relates to a method for correcting the operating point of a focus control loop for a scanner for optical storage media. According to the invention, the method comprises the steps of: extracting from a focus error signal (FE) a signal component caused by vertical wobble of the optical storage medium; integrating the extracted signal component; and correcting the operating point with the aid of the integrated signal.

Method and apparatus for power control in a display device

The invention relates to a new method for power level control of a display device and an apparatus for carrying out the method. Classically, the contrast/brightness control and the power management (based on an average power level control) are made independently. These two controls can be contradictory. According to the invention, the power level mode and more particularly the number of sustain pulses within the video frame is selected as a function of the average power level (APL) of the picture to be displayed and the picture control signal representing the desired contrast and/or brightness value.

Method, apparatus and system for supporting multiple collaborative sessions in a bi-directional communication device

A method, apparatus and system for supporting multiple diagnostic sessions include receiving multiple diagnostic session requests, verifying identification information for each requester, establishing a communications channel for each verified requester, and communicating the requested information to all of the verified requesters via the established communications channels.

High-definition de-interlacing and frame doubling circuit and method

A combined de-interlacing and frame doubling system (114, 114' and 114'') advantageously serves to de-interlace successive lines of Present Field Video data at twice the field rate to yield an output bit stream suitable for display on display device that utilizes progressive scanning. The de-interlacing and frame doubling system in accordance with present principles includes a frame memory mechanism (116, 116' and 116'') for storing at least one frame of interlaced video having a prescribed field rate. At least one de-interlacing circuit (11401, 1140'1, 1140'') pulls at least two fields of video data from the memory mechanism at a rate of at least twice the field rate for performing a full de-interlacing function in half of a field period to generate the a progressive, frame doubled signal for receipt at the display device.

Network re-encoding method and device for re-encoding encoded symbols to be transmitted to communication equipments

A network re-encoding device is intended for re-encoding encoded symbols to be transmitted to at least one communication equipment connected to a network. This network re-encoding device comprises a re-encoding means arranged for re-encoding output nodes, defined by LT code symbols representative of encoded symbols and representative respectively of the results of XOR Boolean operation between input nodes defining decoded symbols whose values have to be discovered and to which they are linked into a Tanner graph, by combining chosen input node and/or output node having known values, in order to produce new LT code symbols defining generated output nodes ready to be transmitted.

Apparatus for reading from and/or writing to optical recording media

When an optical recording medium having a plurality of data layers is being read from and/or written to, the input beam experiences an aberration, inter alia in the top layers of the data layers. In order, nevertheless, to achieve a high data density, a device for correcting the spherical aberration is located in the beam path of the input beam. In the case of the use of an optical diode in which the input beam and the reflected beam have directions of polarization perpendicular to one another, such a device is expensive to implement and associated with a reduced optical efficiency. It is an object of the invention to propose an apparatus for reading from and/or writing to optical recording media, in the case of which a high optical efficiency and balancing of the spherical aberration are achieved with low outlay. For this purpose, the device for correcting the spherical aberration is set up such that the reflected beam traverses it uninfluenced, whereby means for correcting the imaging ...

Address generation apparatus for turbo interleaver and deinterleaver in W-CDMA systems

There is provided an address generation apparatus for one of an interleaver and a deinterleaver in a Wideband Code Division Multiple Access (W-CDMA) system. The apparatus includes an address pair generator for generating an address pair (n, P(n)) in real-time for one of an interleaver operation and a deinterleaver operation that includes inter-row permutation and intra-row permutation. The address pair (n, P(n)) is generated such that, for the interleaving operation, data to be interleaved are read out from the at least one memory device using the P(n) and interleaved data are written into the at least one memory device using the n. Further, the address pair (n, P(n)) is generated such that, for the deinterleaving operation, data to be deinterleaved are read out from the at least one memory device using the n and deinterleaved data are written into the at least one memory device using the P(n).

Appliance for recording or playing back information having means for detecting or moving the scanning location on a disc with a wobble track

The invention proposes an appliance for recording or playing back information having means for detecting or moving the position of a scanning device over a disc with a wobble track, said appliance being able to be used both in recorded and in unrecorded areas of the disc and hence being able to be used both for write-once and for rewriteable recording media with a wobble track, and said appliance additionally permitting fast determination of the scanning location without decoding of scanned-location information which is contained in the wobble track. According to the invention, a wobble signal is scanned from the wobble track on the disc using a scanning device, and a wobble frequency contained in the wobble signal detected from the disc is used for detecting or moving the position of the scanning device. In this regard, the wobble frequency is related to the number of revolutions or the rotation speed of the disc or to a wobble frequency known for a reference location on the disc, which ...

Tiled color filter for a projection system

A controllable reflecting device having an array of mirrors that is combined with a tiled color filter such that each micro mirror reflects a single primary color is described. The tiled color filter, in the light path between a light source and the mirror array, images one micro mirror wide primary color stripes on the micro mirror array in a repeating sequence (for example RGBRGB etc.). A movable mirror or lens in the optics path between the micro mirror array and a projection screen is moved to displace the image formed by the micro mirror array and projected to the screen such that for each image all pixel positions at the screen sequentially see a micro mirror of each primary color.

Method for evaluating video quality

A method for evaluating video quality of a video stream comprising the steps of a) calculating, for at least a first frame of a series of frames from said video stream, a true value of at least one video quality-related parameter associated to said first frame; b) calculating a predicted value of said video quality-related parameter for at least a second frame from said series of frames based on said true value associated to said first frame; c) calculating a true value of said video quality-related parameter associated to said second frame; and d) judging the video quality of said second frame based on a difference between true and predicted values of the at least one video quality-related parameter associated to said second frame.

Device and method for creating a saliency map of an image

Detection of the salient points in an image enable the improvement of further steps such as coding or image indexing, watermarking, video quality estimation. The methods rely on the fact that a model is fully based on the human visual system (HVS) such as the computation of early visual features, and the methods compute a saliency map for video images taking into account motion and the velocity of the eye.

Method for establishing a multi-link access between a local network and a remote network, and corresponding appliance

The invention enables the different access links between a local network and a remote network to be used in a common and transparent manner. The invention is based on the use of various IP tunnels using the different access links between an appliance on the local network of the user and an appliance on the remote network. Said tunnels are embodied as a single link providing access to the remote network.

MESSAGE PASSING INTERFACE (MPI) FRAMEWORK FOR INCREASING EXECUTION SPEEDAULT DETECTION USING EMBEDDED WATERMARKS

A system and method for processing video uses a message protocol to communicate between computing units. An image request message is sent to an administrator process of a master node from at least one slave process to request an image to process. Responsive to the request message, an image name message is sent to a requesting slave process from the administrator process to retrieve the image from a queue. The image associated with the image name is processed. Images to process are requested until a completion message is received from the administrator process.

METHOD FOR USING A REMOTE CONTROL FOR A PAYMENT TRANSACTION AND ASSOCIATED DEVICE

Remote control device of a data receiver, the data being representative of an audiovisual content, the data receiver receiving information relating to payment of an object and data representative of the object, the remote control device comprising means of configuring the data receiver useful for processing data representative of an audiovisual content, remote control device being characterised in that it comprises a user interface for initialising a payment transaction, a first wireless interface for receiving information useful for payment of the object and a second wireless interface for transmitting payment information with a remote payment unit.

Method and apparatus for audio and video synchronization timestamp rollover correction

There are provided methods and apparatus for audio and video synchronization timestamp rollover correction. A synchronization apparatus includes a synchronizer for providing synchronization information for synchronizing a video stream with an audio stream during any point in a broadcast thereof irrespective of whether the video stream and the audio stream have different rollover points for their respective timestamps. The synchronization information is encoded for an out of band transmission with respect to the broadcast of the audio and video streams.

Cell search for handover conditions

A method and apparatus for controlling a primary cell search operation including generating a profile of correlation peaks, determining if magnitudes of the correlation peaks vary, synchronizing a signal acquisition process to one of the identified correlation peak having a greatest magnitude if the magnitudes of the correlation peaks remain relatively constant and synchronizing the signal acquisition process to a peak whose magnitude is increasing if the magnitudes of the correlation peaks are changing. The method and apparatus further include identifying an index and a magnitude of a largest correlation peak of the correlation peaks, determining if other correlation peaks exist in the profile, synchronizing the signal acquisition process to the largest correlation peak originally identified if other correlation peaks do not exist, storing indices and magnitudes for all other correlation peaks located and comparing changes in correlation peak magnitudes for all previously identified peaks ...

Filter configuration for a receiver of multiple broadcast standard signals

A filter arrangement for a receiver for multiple broadcast signals includes a first filter for receiving a broadcast signal from a tuner, a second filter coupled to an output of said first filter, said second filter having a variable bandwidth response, said second filter providing an output for a demodulator; and a filter control responsive to said broadcast signal for controlling said variable bandwidth response of said second filter.

Blind carrier tracking loop

A receiver is an ATSC (Advanced Television Systems Committee)-receiver and comprises a phase lock loop (PLL) for performing carrier tracking of a carrier in a received signal. The PLL includes a detector (160) comprising two pseudo-Hilbert filters (205, 215). The detector uses energy from both band edges of the received ATSC signal for driving the PLL.

System and method for the repair of anomalies in images

The present invention concerns a method and associated apparatus for improving the quality of digital imagery by detecting and correcting erroneous pixel values from image sensors, such as those produced by stuck or dead pixels in a CCD or CMOS sensor. Anomalous pixel values are detected through comparisons with values of adjacent pixels and corrected selectively per channel through interpolation of adjacent pixel values.

Lаrgе sсrееn digitаl imаgе prоjесtоr

Тhе invеntiоn rеlаtеs tо а prоjесtiоn sуstеm соmprising: а pоlусhrоmаtiс light sоurсе аnd аt lеаst оnе imаging аssеmblу illuminаtеd bу аn аssосiаtеd pоlусhrоmаtiс illuminаtiоn bеаm, аnd соmprising: twо sеpаrаtе соlоrеd whееls, rеspесtivеlу саllеd first аnd sесоnd соlоrеd whееl; аnd thrее sеpаrаtе imаgеrs, rеspесtivеlу саllеd first, sесоnd аnd third imаgеrs. Аt lеаst оnе pаrt оf thе pоlусhrоmаtiс bеаm, саllеd first sоurсе bеаm, illuminаting thе first соlоrеd whееl whiсh sеpаrаtеs sаid sоurсе bеаm intо а first mоnосhrоmаtiс bеаm аnd intо а twо-tоnе bеаm, sаid first mоnосhrоmаtiс bеаm illuminаting thе first imаgеr аnd sаid twо-tоnе bеаm bеing trаnsmittеd tоwаrd thе sесоnd соlоrеd whееl. Тhе sесоnd соlоrеd whееl bеing illuminаtеd bу sаid twо-tоnе bеаm аnd sеpаrаting sаid twо-tоnе bеаm intо sесоnd аnd third mоnосhrоmаtiс bеаms, rеspесtivеlу illuminаting sаid sесоnd аnd third imаgеrs rеspесtivеlу.

Vidео аppаrаtus

А vidео аppаrаtus hаs а digitаl dесоdеr gеnеrаting а first digitаl strеаm, а vidео sоurсе оf а first аnаlоguе signаl, а vidео еnсоdеr аnd а first vidео dесоdеr соnnесtаblе tо thе vidео sоurсе fоr gеnеrаting а sесоnd digitаl strеаm bаsеd оn thе first аnаlоguе signаl. А switсh is соuplеd tо thе first vidео dесоdеr аnd tо thе digitаl dесоdеr tо nоtаblу miх thе sесоnd digitаl strеаm аnd thе first digitаl strеаm intо аn оutput digitаl strеаm tо thе vidео еnсоdеr.

Method for generating shadows in an image

As to generate shadows in an image, the method comprises the steps of: Computing a depth-map that comprises an array of pixels, wherein pixels in the depth-map are associated to a single value corresponding to depth value that indicates a depth from a light source to a portion of nearest occluding object visible through the pixel, projecting a point visible through a pixel of said image into a light space, the result of said projection being a pixel of said depth-map, calculating a distance between the said visible point and the light source, fetching the depth value associated to said pixel of depth-map, computing, for said pixel of said image, an adaptive bias as a function of a predetermined base bias and a relationship between the normal of a surface on which the said visible point is located and incident light direction at said visible point, comparing for said pixel in the image, the distance between said visible point and the light source with the sum of the corresponding depth map value and said adaptive bias, labelling said point visible through said pixel as lit or shadowed according to said comparison.

METHOD AND APPARATUS FOR SCALABLE CONTENT MULTICAST OVER A HYBRID NETWORK

A method and apparatus are described including receiving content from a base station, storing the received content, receiving a second message from a first member of a network, determining a highest expected layer, a lowest layer received by the first member of the network requesting help, a highest layer that needs to be multicast to the first member of the network, and a lowest layer that needs to be multicast to the first member of the network, retrieving the stored content responsive to the message and multicasting the retrieved content to the first member of the network responsive to the determining act. 1. A method for maximizing an average received content quality at a user device , said method comprising:receiving, at said user device, content from a base station via a first network;storing said received content in said user device;receiving a message from a first member of a second network;first determining a highest expected layer, a lowest layer received by said first member of said second network requesting help, a highest layer that needs to be multicast to said first member of said second network, and a lowest layer that needs to be multicast to said first member of said second network, wherein said highest expected layer is a highest layer that said user device can expect to receive through members of said second network;retrieving said stored content responsive to said message; andmulticasting said retrieved content to said first member of said second network responsive to said first determining act.2. The method according to claim 1 , further comprising receiving content from a second member of said second network.3. The method according to claim 1 , further comprising:second determining if said message is an advertising message;updating a neighbor data base responsive to said determination;third determining if said message is a help request message;fourth determining if said message has expired responsive to said second determination;transmitting, ...

System, method, and software application for targeted advertising via behavioral model clustering, and preference programming based on behavioral model clusters

The method and system for TV user profile data prediction and modeling allows accurate and narrowly focused behavioral clustering. A client-side system classifies television consumers into representative user profiles. The profiles target individual user advertising and program preference category groups. A contextual behavioral profiling system determines the user's monitor behavior and content preferences, and the system may be continually updated with user information. A behavioral model database is queried by various system modules. The programming, including targeted advertising for television and interactive television is based on the profile data prediction, modeling and preference determination. The system is enabled to present a complete program sequence to the viewer based on the preference determination and stored programming. The latter is referred to as automatic program sequence (virtual channel) creation and the virtual channel can be presented as a separate channel in an electronic programming guide (EPG).

Method for controlling and requesting information from displaying multimedia

The invention provides a robust method to control interactive media using gestures. A method to retrieve metadata information from a multimedia outlet device, wherein the method follows the steps: (1) extracting image hot spot areas in a current captured image using face detection, (2) detecting a human gesture directive in at least one image hot spot area using gesture recognition, (3) determining if the gesture directive matches a pre-assigned command to a rich interaction module, (4) sending a signal to a rich interaction module corresponding to the pre-assigned command detected, (5) extracting a media image hot spot area from electrical signals sent from the multimedia, (6) matching any detected human gestures in at least one image hot spot area using gesture recognition with a specific pixel on a device screen, and (7) retrieving information from metadata assigned to an area of pixels on the screen. 1. A method to retrieve metadata from a multimedia device , wherein the method comprises the following steps:determining motion areas in a captured image from a multimedia device using face detection;detecting motion in at least one motion area using gesture recognition; andretrieving metadata assigned to pixels of the at least one motion area.2. A method of claim 1 , wherein the motion detection further comprises a step of determining motion areas using a current captured image (Ci).3. The method of claim 2 , further comprising a step of calculating and analyzing the difference (Di) between the current captured image (C) and a current captured image (C) claim 2 , using the current captured image (C).4. The method of claim 3 , further comprising a step of applying an erosion on the difference (D) to remove small areas.5. The method of claim 4 , further comprising a step of applying the motion area as a mask to filter out non-motion areas.6. The method of claim 5 , further comprising a step of adding the difference (D) to build a motion image.7. The method of claim 6 ...

FILTERING NETWORK IN HR-SI SILICON TECHNOLOGY

The invention relates to a filtering network in HR-Si silicon technology defined by at least one cut-off frequency and comprising an input terminal for receiving the signal to be filtered and an output terminal for delivering a filtered signal. The network comprises a first ground line connected by its ends to first and second ground points connected directly to the ground plane, a second ground line connected via its ends to third and fourth ground points directly connected to the ground plane, a plurality of L/C resonant elements connected in parallel and linked via one end to one of the two ground lines and via the other end between them, by means of coupling inductors which thus create transmission zeros. Each ground line forming inductive elements via inductances the network comprises capacitive elements in series with at least some of said inductive elements, the value of the capacitive elements being selected so that the resonant frequency of the inductive and capacitive elements in series corresponds to a frequency lying outside of the bandwidth. 1. Filtering network in HR-Si silicon technology defined by at least one cut-off frequency and comprising:an input terminal to receive the signal to be filtered and an output terminal to provide a filtered signal,a first ground line is connected by its ends to first and second ground points, a second ground line is connected via its ends to third and fourth ground points, a plurality of L/C resonant elements are connected in parallel and being linked via one end to one of the two ground lines and via the other end, between them, by means of coupling inductors thus creating transmission zeros, whereineach ground line forming inductive elements the network comprises capacitive elements in series with at least some of said inductive elements, the value of capacitive elements being selected so that the resonant frequency of inductive and capacitive elements in series corresponds to a frequency lying outside of the ...

DEVICE AND METHOD AT THE DEVICE FOR OPTIMIZING NETWORK PARAMETERS

The present invention concerns a digital subscriber line modem and a method at the modem for optimizing network parameters used for data transmission between a Digital Subscriber Line modem and a Digital Subscriber Line Access Multiplexer, comprising the steps of receiving at least one physical transmission control parameter from the Digital Subscriber Line Access Multiplexer, getting local parameters entered at the modem, the local parameters indicating the type of service transmitted between the Digital Subscriber Line modem and a Digital Subscriber Line Access Multiplexer, obtaining minimum Target Service Bit Rate based on the local parameters and optimizing the Impulse Noise Protection value and the interleaving Delay value according to the minimum Target Service Bit Rate, based on the local parameters and the at least one physical transmission control parameter. 1. Method for optimizing an Impulse Noise Protection parameter and an Interleaving Delay parameter used for data transmission between a Digital Subscriber Line modem and a Digital Subscriber Line Access Multiplexer , comprising at said modem the steps of:receiving at least one physical transmission control parameter value from said Digital Subscriber Line Access Multiplexer;indicating at the modem local parameters indicating the type of services used between said Digital Subscriber Line modem and a Digital Subscriber Line Access Multiplexer;obtaining the minimum Target Service Bit Rate based on said local parameters; andselecting among performance or stability optimization;if stability optimization is selected, maximizing the value of the Impulse Noise Protection and minimizing the value of the Interleaving Delay according to said value of Impulse Noise Protection, and if performance optimization is selected, minimizing the value of the Impulse Noise Protection and maximizing the value of the Interleaving Delay according to said value of Impulse Noise Protection,said Impulse Noise Protection value and ...

METHOD OF TRANSMISSION OF AT LEAST A DATA PACKET BY SEVERAL ANTENNAS AND CORRESPONDING RECEPTION METHOD

In order to improve the quality of transmission and reception of data packets, the method of transmission using several antennas comprises: 1. Method of transmission of at least a data packet by several transmission antennas adapted to transmit a signal , wherein it comprises:an encoding of a first data packet into a first encoded block and a second data packet into a second encoded block;a mapping of first frequency channel to a first set comprising at least a transmission antenna;a mapping of second frequency channel to a second set comprising at least a transmission antenna, the first frequency channel being different from the second frequency channel;a transmission of the first encoded block on the first set of at least a transmission antenna and on the second set of at least a transmission antenna; a mapping to second frequency channel or third frequency channel different from first frequency channel to the first set comprising at least a transmission antenna; and', 'a transmission of the second encoded block on the first set of at least a transmission antenna and on the second set of at least a transmission antenna., 'if quality of reception at first frequency channel is lower than a threshold,'}2. Method according to claim 1 , wherein claim 1 , if quality of reception at first frequency channel is greater than a threshold claim 1 , it comprises:a mapping to first frequency channel or third frequency channel different from second frequency channel to at least a part of the second set comprising at least a transmission antenna; anda transmission of the second encoded block on the first set of at least a transmission antenna and on the second set of at least a transmission antenna.3. Method according to claim 1 , wherein it comprises a mapping of antenna according to noise levels claim 1 , each noise level being associated to each frequencies.4. Method according to claim 2 , wherein noise levels are measured at the transmitter;5. Method according to claim 1 , ...

METHOD AND SYSTEMS FOR DELIVERING MULTIMEDIA CONTENT OPTIMIZED IN ACCORDANCE WITH PRESENTATION DEVICE CAPABILITIES

Methods and systems for optimizing multimedia content or a display of the media content in accordance with an optimal or ideal picture are disclosed. Different content versions that are optimized for different display devices can be remotely generated and transmitted to a receiver connected to the display device. In addition, sets of parameter display settings that are optimized for different display devices can be transmitted to the receiver to permit the display of an optimal picture for multimedia content. Moreover, a description or indication of display device parameters can be transmitted to a remote server for use in the generation of the different versions of content or different sets of parameter display settings. 1. A method comprising the steps of:receiving an indication of at least one client display device parameter over a wide area network from a receiver;determining a version of multimedia content that is optimized for the client display device based on the client display device parameter such that the display of said version on the display device parallels the display properties of a predetermined optimal model for the content; andtransmitting the version to the receiver.2. The method of further comprising the step of:performing said determining and transmitting in response to receiving a request for the multimedia content.3. The method of further comprising the step of:generating said version in response to receiving said indication.4. The method of further comprising the step of:storing a plurality of versions of the multimedia content that are optimized for different sets of display device parameters, wherein said determining further comprises selecting a proper version to transmit to the receiver by matching the indication of client display device parameters with a corresponding version that is optimized for the client display device parameters.5. The method of further comprising the step of:including an indication of ambient light surrounding the ...

Multipoint relay set selection methods and their application to multicast channel reservation in overlapping basic service sets in wireless networks

A method and apparatus are described including communicating with neighbor nodes in a wireless network, determining one-hop neighbor nodes and two-hop neighbor nodes responsive to the communication, determining a minimum multipoint relay set responsive to the first working channel determination and communicating over the wireless network using the minimum multipoint relay set.

Internet Multimedia Advertisement Insertion Architecture

An architecture for inserting listener targeted advertisements into Internet retransmission of terrestrial radio broadcasts is provided. An Internet server provides aggregation of a plurality of radio broadcast programming for dissemination over the Internet to a plurality of listeners/users. Each Internet provided radio broadcast includes advertisements targeted for each individual listener/user based on a demographics profile. The demographics profile for each listener/user provides a basis for the targeted advertisements. A readily scaleable architecture is capable of supporting rapid growth in listeners/users. Scheduling data is used to predict and prestage advertising content. Timestamping of the radio broadcast aids in calculating where in the broadcast data sequence to pick up after an advertisement. Scalability is preferably achieved by a multiplexer in order to support large numbers of listener connections for streaming audio. 121-. (canceled)22. A method for processing broadcast multimedia content and advertisements to provide a composite program data stream including multimedia data content and user targeted advertisements to multiple different users comprising the steps of:receiving broadcast multimedia program content from multiple sources;scheduling a time of insertion of a designated advertisement into selected broadcast multimedia program content;providing multiple users with individualized composite program datastreams by inserting said designated advertisement into a selected program multimedia program content at a scheduled insertion time to form a composite data stream that the designated advertisement is selected by using user preference information based on prior user program selection history. This application claims the benefit of U.S. provisional patent application Ser. No. 60/207,385 filed on May 26, 2000 entitled “Internet Radio Ad Insertion Architecture”.The present invention relates to the transmission of broadcast content over the ...

VIRTUAL MULTIMEDIA MATRIX OVER PACKET SWITCHED NETWORK

The present invention relates to a communication device comprising switching means in a packet switched networks, preferably in professional video production and broadcast environments. The present invention more particularly concerns a communication device in a packet-switched communication network, comprising means for: 2. Communication device according to claim 1 , comprising means for receiving external commands for In/Out streams' set identification claim 1 , time synchronization and switching time event notification.3. Communication device according to claim 1 , comprising means for transmitting at least current operation status.4. Communication device according to claim 1 , wherein said time based information is provided by an implementation of the IEEE 1588 standard.5. Communication device according to claim 1 , comprising means for handling dedicated application protocols corresponding to OSI layers 5 to 7.6. Communication device according to claim 1 , wherein said switching takes place at specific times claim 1 , such as the A/V units borders like picture or audio frame.8. Method of switching according to wherein said registering step comprises communicating an IP multicast address of the data source to said communication device.9. Method of switching according to claim 7 , wherein said destination device declares a logical identifying element of the stream resulting from the combination/processing done by said communication device.10. Method of switching according to claim 9 , wherein said destination device indicates a list of IP multicast addresses of the source streams claim 9 , the IP multicast address and the UDP port number for the resulting stream.11. Method of switching according to claim 7 , comprising a further step of notifying claim 7 , by said destination device claim 7 , said communication device of a change in the list of source streams that it requests to receive.12. Method of switching according to wherein the step of notifying comprises ...

METHOD AND APPARATUS FOR DISTRIBUTING A MULTIMEDIA CONTENT

A method for distributing a multimedia content to at least two rendering devices, wherein said multimedia content comprises at least two elementary contents, the method comprises the steps of receiving first information including information indicating for each of said at least two elementary contents a destination rendering device and a starting time; for each rendering device associated with said multimedia content, sending corresponding information indicating starting time for at least one elementary content destined to the rendering device; receiving said multimedia content; and sending said at least two elementary contents of said multimedia content to their corresponding destination rendering devices based on information indicating destination rendering device for each of said at least two elementary contents. 111-. (canceled)12. A method for distributing a multimedia content to at least two rendering devices , wherein said multimedia content comprises at least two elementary contents , the method comprises the steps ofreceiving first information including information indicating for each of said at least two elementary contents a destination rendering device and a starting time;for each rendering device associated with said multimedia content, sending corresponding information indicating starting time for at least one elementary content destined to the rendering device;receiving said multimedia content; andsending said at least two elementary contents of said multimedia content to their corresponding destination rendering devices based on information indicating destination rendering device for each of said at least two elementary contents.13. The method of the claim 12 , wherein the first information of said multimedia content further comprises information indicating operation instruction and selectable operation choices for each of said at least two elementary contents.14. The method of the claim 13 , wherein claim 13 , responsive to an instruction for ...

METHOD FOR ENCODING/DECODING A 3D MESH MODEL THAT COMPRISES ONE OR MORE COMPONENTS

3D mesh models are represented by three types of data: connectivity data, geometry data and property data. The surface of a 3D object is a triangle mesh. 3D meshes contain huge amounts of data that need to be compressed efficiently. Additionally to the common world coordinate system for the complete model and local coordinate system for a single triangle, an individual component coordinate system for each connected component is used. The component coordinate system is used to normalize the orientation of the respective component for quantization and de-quantization. This improves the accuracy of encoded 3D mesh models after quantization/de-quantization, particularly if a 3D mesh model comprises one or more distinct components. 1. A method for encoding a 3D mesh model , wherein the 3D mesh model comprises one or more components , comprising the steps ofdetermining an orthonormal basis in 3D space for each of the one or more components, wherein Principal Component Analysis based on the vertices of a component is used and wherein each vertex belongs to one or more triangles, and wherein, for said Principal Component Analysis, each vertex of the component is assigned a weight which is determined from the areas of the triangles to which the vertex belongs;encoding object coordinate system information of the component;normalizing the orientation of each of the one or more components relative to a world coordinate system, wherein for each of said one or more components a transformation is used that is obtained from the determined orthonormal basis of the component;quantizing the normalized vertex positions; andencoding the quantized vertex positions.2. The method according to claim 1 , wherein the step of determining an orthonormal basis comprises calculating a component mean for each component claim 1 , wherein for the calculating said weight of a vertex is the sum of the areas of the triangles to which the vertex belongs.3. The method according to claim 1 , wherein the ...

CONTRAST ENHANCEMENT

A method according to the invention enhances contrast of an image by accessing an original image, and establishing, assigning, or initializing pixel values and pixel coordinates of pixels of the image. Then, a Laplacian pyramid having an integral number of levels is generated for the image. A contrast boost pyramid is generated and applied to the Laplacian pyramid to obtain a modified Laplacian pyramid wherein values in the levels of the Laplacian pyramid are enhanced. An enhanced image is then constructed from the modified Laplacian pyramid. 1. A method for enhancing contrast of an image comprising:accessing an original image;establishing, assigning, or initializing pixel values and pixel coordinates of pixels of the image;generating a Laplacian pyramid for the image having an integral number of levels;generating a contrast boost pyramid;applying the contrast boost pyramid to the Laplacian pyramid to obtain a modified Laplacian pyramid wherein values in the levels of the Laplacian pyramid are enhanced; and,constructing an enhanced image from modified Laplacian pyramid.2. The method of wherein values of at least one level are enhanced more than those of another level.3. A method for enhancing contrast of an image comprising:accessing at least one original image;generating a multi-scale signal representation of the at least one original image having an integral number of levels;processing the at least one original image responsive to the multi-scale representation to generate at least one enhanced image.4. The method of claim 3 , further comprising the step of generating a pyramid representation of the at least one original image to form the multi-scale signal representation of the at least one original image.5. The method of claim 4 , further comprising the step of employing a bandpass pyramid methodology to generate the pyramid representation.6. The method of claim 5 , wherein the pyramid representation is a Laplacian pyramid I claim 5 , where k={1 claim 5 , . . . ...

HYBRID DISC, METHOD AND SYSTEM OF FORMING THE DISC

A hybrid data disc, method and system of forming the disc are disclosed. The hybrid disc includes a first substrate structure bonded to a second substrate structure, and at least two data layers of different formats for access from different sides of the disc. One example provides the second substrate structure with a second substrate that has at least one curable material layer on each side of the second substrate, and the curable material has a property that results in shrinkage associated with curing of the material. Other examples provide a data disc with different stacking ring configurations, a thinner substrate and substrate structures of opposite curvature. 1. A data disc , comprising:a first substrate structure bonded to a second substrate structure, the first substrate structure having a first substrate and at least a first data layer for access from a first side of the disc, the second substrate structure having a second substrate and at least a second data layer for access from a second side of the disc, wherein the first and second data layers have different data formats; andthe second substrate structure further comprising a first curable material layer disposed over a first side of the second substrate, and a second curable material layer disposed over a second side of the second substrate;wherein the first and second curable materials each has a property that results in shrinkage associated with curing of the material.2. The data disc of claim 1 , wherein the first and second curable materials are ultra-violet curable acrylic resins.3. The data disc of claim 1 , further comprising at least a third curable material layer over the second curable material layer claim 1 , the third curable material having a property that results in shrinkage associated with curing of the material.4. The data disc of claim 3 , further comprising a layer of material selected from one of a metal and dielectric between the second and the third curable material layers.5. The ...

METHOD FOR PRODUCING AN ANTENNA, OPERATING IN A GIVEN FREQUENCY BAND, FROM A DUAL-BAND ANTENNA

The present invention relates to a method for producing an antenna operating in a given frequency band, from a dual-band antenna. According to the method, the dual-band antenna is a broadband slot antenna that receives and/or transmits electromagnetic signals at a first frequency and at a second higher frequency. The antenna is powered by a single power supply line, and the free end of the power supply line is connected, by a connection means that can be opened or closed, to at least one means for rejecting one of the frequencies. This invention can be used in producing generic electronic boards. 1. Method for implementing an antenna operating in a given band of frequencies using a wideband antenna , the wideband antenna being of slot type receiving and/or transmitting electromagnetic signals at a wide frequency band , the antenna being powered by a single power supply line , having one free end , wherein free end of the power supply line is either free or connected to a means of rejection for a frequency band include in said wide frequency band through a connection means inserted between the free end of the power supply line and the means of rejection.2. Method according to claim 1 , wherein the dual-band wideband antenna is constituted by a slot tapered at the level of its radiating end such as a Vivaldi antenna or a TSA (Tapered Slot Antenna) antenna.3. Method according to claim 1 , wherein the power supply line is a microstrip line.4. Method according to claim 1 , wherein the rejection means comprise a section of microstrip line.5. Method according to claim 1 , wherein the connection means is constituted via an element forming a short-circuit.6. Method according to claim 3 , wherein the length of the set constituted of the section of microstrip line claim 3 , of the element in short-circuit and of a length of said power supply line between its open end and a transition plane with the slot is equal to λg/4 where λg is the guided wavelength at the rejection ...

METHODS AND APPARATUS FOR SIGNALING INTRA PREDICTION FOR LARGE BLOCKS FOR VIDEO ENCODERS AND DECODERS

Methods and apparatus are provided for signaling intra prediction for large blocks for video encoders and decoders. An apparatus includes a video encoder for encoding picture data for at least one large block in a picture by signaling intra prediction for the at least one large block. The intra prediction is signaled by selecting a basic coding unit size and assigning a single spatial intra partition type for the basic coding unit size. The single spatial intra partition type is selectable from among a plurality of spatial intra partition types. The at least one large block has a large block size greater than a block size of the basic coding unit. The intra prediction is hierarchical layer intra prediction and is performed for the at least one large block by at least one of splitting from the large block size to the basic coding unit size and merging from the basic coding unit size to the large block size. 1. An apparatus , comprising:a video encoder for encoding picture data for at least one large block in a picture by signaling intra prediction for the at least one large block, wherein the intra prediction is signaled by selecting a basic coding unit size and assigning a single spatial intra partition type for the basic coding unit size, the single spatial intra partition type being selectable from among a plurality of spatial intra partition types, the at least one large block having a large block size greater than a block size of the basic coding unit,wherein the intra prediction is hierarchical layer intra prediction and is performed for the at least one large block by at least one of splitting from the large block size to the basic coding unit size and merging from the basic coding unit size to the large block size.2. The apparatus of claim 1 , wherein for each of the plurality of spatial intra partition types claim 1 , a higher priority is assigned to a particular intra prediction mode that is most frequently used from among a plurality of available intra ...

DEVICE AND METHOD FOR RECEIVING VIDEO DATA PACKETS

The invention relates to a device for receiving audio video data packets and corresponding method. According to said method, said packets received comprising an absolute time stamp showing the display time of said packets, said packets being intended to be displayed after their recording, or to be displayed directly following their reception. The device comprises an interface module with the display intended to respect, among other things, the display time of said packets. The device comprises: 1. Device for receiving audio video data packets , each of said packets received comprising an absolute time stamp representing the display time of said packets , said packets being intended to be displayed after their recording , or to be displayed directly following their reception , said device comprising an interface module with the display intended to respect , among other things , the display time of said packets , wherein it comprisesmeans for reformatting said packets intended to be displayed after recording in such a manner that these packets after they have been read are received by the interface module with the display in the same format as said packets intended to be displayed directly following their reception,said means for reformatting said packets modifying at least the time stamp of the packets intended for the recording.2. Device according to claim 1 , wherein the means for reformatting said packets intended for the recording replaces the time stamp of the packets received by a new recording time stamp prior to their recording and while they are read with a view to display claim 1 , replacing the recording time stamp with a time stamp representing the display time of said packets.3. Device according to claim 1 , wherein the interface module with the display is responsible for transmitting commands to a display device and for receiving instructions from a user claim 1 , said interface module being suitable to modify the event tables of the audio video packets ...

DATA SECURITY IN SOLID STATE MEMORY

The invention concerns data security in solid state memory. The solid state memory contains at least one specific area directed to storing sensitive information. The invention is for handling security relevant data in solid state memories and to protect the data from unauthorized access. According to the invention, the solid state memory includes a security element for deleting the specific memory area at start up. 113-. (canceled)14. Solid State Memory having at least one area for storing sensitive information , wherein the security relevant data are stored in an specific area at specific addresses in the Solid State Memory and the Solid State Memory includes a security element for deleting the content of the specific memory area at start up and/or power off15. Solid State Memory according to claim 14 , wherein the specific memory area is a memory area for storing security relevant data.16. Solid State Memory according to claim 15 , wherein the security relevant data points to memory addresses where further security relevant data is stored.17. Solid State Memory according to claim 15 , wherein the security element is provided to perform checking if data is stored in the specific memory area at start up and for deleting the data if the check is positive.18. Solid State Memory according to claim 16 , wherein the security element is provided to perform checking if data is stored in the specific memory area at start up and for deleting the data if the check is positive.19. Solid State Memory according to claim 14 , wherein the Solid State Memory includes a specific on board circuit for deleting the content of the specific memory area at start up.20. Solid State Memory according to claim 15 , wherein the Solid State Memory includes a specific on board circuit for deleting the content of the specific memory area at start up.21. Solid State Memory according to claim 16 , wherein the Solid State Memory includes a specific on board circuit for deleting the content of the ...

COMBINED MEMORY AND STORAGE DEVICE IN AN APPARATUS FOR DATA PROCESSING

The invention concerns an apparatus for data processing comprising a central processing unit and a non volatile random access memory. The central processing unit and the non volatile random access memory are connected via a memory bus. The data related to an operating system for running said apparatus is at least partly stored in said non volatile random access memory and the memory used by the operating system for operating said apparatus is at least partly said non volatile memory. 110-. (canceled)11) Apparatus for data processing comprising a central processing unit and a memory bus for electrically connecting a non volatile random access memory , wherein data related to an operating system used for running said apparatus is at least partly stored in said non volatile random access memory and wherein memory used by the operating system for operating said apparatus is at least partly said non volatile random access memory.12) Apparatus according to claim 11 , wherein the only recordable memory comprised by said apparatus is the nonvolatile random access memory.13) Apparatus according to claim 11 , wherein the nonvolatile random access memory is located in a component of the apparatus that is physically detachable from said apparatus.14) Apparatus according to claim 12 , wherein the nonvolatile random access memory is located in a component of the apparatus that is physically detachable from said apparatus.15) Apparatus according to claim 11 , wherein the memory bus connection is realized by a direct wire or plug connection of pins between the central processing unit and the non volatile random access memory.16) Apparatus according to claim 12 , wherein the memory bus connection is realized by a direct wire or plug connection of pins between the central processing unit and the non volatile random access memory.17) Apparatus according to claim 13 , wherein the memory bus connection is realized by a direct wire or plug connection of pins between the central ...

METHOD AND APPARATUS FOR PEER-TO-PEER STREAMING OF LAYERED CONTENT

A method and apparatus are described including receiving buffer maps of neighbor peers, measuring serving rates from the neighbor peers, measuring serving rates to the neighbor peers, requesting a unit of data from one of the neighbor peers responsive to information in the buffer maps of the neighbor peers at a rate responsive to the serving rate from the one of the neighbor peers, receiving incoming requests for units of data, sorting the incoming requests into a plurality of queues, selecting one of the incoming requests to serve responsive to the serving rates to the neighbor peers corresponding to the incoming request, updating the queues and selecting a new neighbor peer. 1. A method , said method comprising:receiving buffer maps of neighbor peers;measuring serving rates from said neighbor peers;measuring serving rates to said neighbor peers;requesting a unit of data from one of said neighbor peers responsive to information in said buffer maps of said neighbor peers at a rate responsive to said serving rate from said one of said neighbor peers;receiving incoming requests for units of data;sorting said incoming requests into a plurality of queues based on entitled and excess layer data including a cost factor, which balances common welfare against individual peer welfare;selecting one of said incoming requests to serve responsive to said serving rates to said neighbor peers corresponding to said incoming request, wherein said allocating act further comprises determining a total number of tokens, allocating said tokens to entitled queues, determining if all tokens have been allocated, and allocating said tokens to excess queues responsive to a determination that there are unallocated tokens.updating said queues; andselecting a new neighbor peer.2. The method according to claim 1 , further comprising storing said buffer maps.3. The method according to claim 1 , further comprising storing said serving rates from said neighbor peers.4. The method according to claim ...

BACKWARD LOOKING ROBUST HEADER COMPRESSION RECEIVER

Robust Header Compression (ROHC) offers a way to compress packet header information for more efficient transmission of data. The compression is achieved through various confidence modes set up by the transmitter and the receiver. The Initialization and Refresh state (IR) is the first state of the compressor. This provides a complete, uncompressed context of the data that is being transmitted. In typically operation, the ROHC compressor will periodically transmit IR packets providing context information allowing the ROHC decompressor to decompress one or more packets following the IR packet. However, under certain conditions such as decompressor start-up, it is possible for the decompressor to miss an IR packet. Exemplary methods and apparatus are described in which a decompressor uses a later-received IR packet to decompress earlier packets for which the decompressor had not received context information. 1. A method for decompressing data packets in a receiver , the method comprising:receiving a first compressed data packet;receiving an initialization packet after the first compressed data packet, wherein the initialization packet contains context information;re-creating context information for decompressing the first compressed data packet from the context information contained in the initialization packet; anddecompressing the first compressed data packet using the re-created context information.2. The method of claim 1 , further comprising:receiving a second compressed data packet after the initialization packet; anddecompressing the second compressed data packet using the context information contained in the initialization packet.3. The method of claim 1 , wherein the first compressed data packet is a Robust Header Compression (ROHC) packet.4. The method of claim 3 , wherein the initialization packet is an Initialization and Refresh (IR) packet.5. The method of claim 1 , wherein the first compressed data packet is a Real-time Transport Protocol (RTP) packet.6. ...

TRAJECTORY-BASED METHOD TO DETECT AND ENHANCE A MOVING OBJECT IN A VIDEO SEQUENCE

The present invention concerns a method and associated apparatus for using a trajectory-based technique to detect a moving object in a video sequence, such as the ball in a soccer game. In one embodiment, the method comprises steps of identifying and evaluating sets of connected components in a video frame, filtering the list of connected components by comparing features of the connected components to predetermined criteria, identifying candidate trajectories across multiple frames, evaluating the candidate trajectories to determine a selected trajectory, and processing images in the video sequence based at least in part upon the selected trajectory. 1. A method of detecting and enhancing a moving object in a video sequence comprising the steps of:identifying sets of connected components in a video frame;evaluating each of said sets of connected components with regard to a plurality of image features;comparing said plurality of image features of each of said sets of connected components to predetermined criteria to produce a filtered list of connected components;repeating said identifying, evaluating, and comparing steps for contiguous frames;identifying candidate trajectories of connected components across multiple frames;evaluating said candidate trajectories to determine a selected trajectory; andprocessing images in said video sequence based at least in part upon said selected trajectory.2. The method of wherein said plurality of image features comprises area claim 1 , eccentricity claim 1 , or whiteness.3. The method of wherein said step of identifying sets of connected components comprises processing an image of said video sequence to create an image representing local maxima.4. The method of wherein said step of processing an image of said video sequence to create a binary image representing local maxima comprises convolving the luminance component of the image with a kernel.5. The method of wherein the kernel is a normalized Gaussian kernel.6. The method of ...

METHODS AND APPARATUS FOR ADAPTIVE TRANSFORM SELECTON FOR VIDEO ENCODING AND DECODING

Methods and apparatus are provided for adaptive transform selection for video encoding and decoding. An apparatus includes a video encoder for encoding at least a block in a picture using a transform. The transform used to encode the block is selected from a plurality of transforms. The plurality of transforms is adaptively updated during the encoding of the picture. 1. An apparatus , comprising:{'b': '300', 'a video encoder () for encoding at least a block in a picture using a transform, wherein the transform used to encode the block is selected from a plurality of transforms, and wherein the plurality of transforms is adaptively updated during the encoding of the picture.'}2. In a video encoder , a method , comprising:{'b': 520', '550', '560', '580, 'encoding at least a block in a picture using a transform, wherein the transform used to encode the block is selected from a plurality of transforms, and wherein the plurality of transforms is adaptively updated during the encoding of the picture (, , , ).'}3580. The method of claim 2 , wherein the plurality of transforms is adaptively updated responsive to information provided from previously encoded pictures ().4580. The method of claim 3 , wherein only a portion of the information provided from the previously encoded pictures is used to adaptively update the plurality of transforms ().51130. The method of claim 3 , wherein singular value decomposition training is used to adaptively update the plurality of transforms ().6580. The method of claim 3 , wherein the plurality of transforms is adaptively updated based on at least one of a frame-basis claim 3 , a group of pictures basis claim 3 , and a scene basis ().7580970. The method of claim 2 , wherein the selected transform is transmitted to a corresponding decoder when the selected transform is not present at the corresponding decoder or is identified to the corresponding decoder when the selected transform is already present at the corresponding decoder or is ...

TARGETED ADVERTISING IN A PEER-TO-PEER NETWORK

A method is described including requesting content from a directory service, receiving a list of peers in a peer-to-peer network having the requested content, selecting a peer from the received list of peers, establishing communications with the selected peer, receiving a list of chunks of content and ads available from the selected peer, requesting a chunk of content and ads available from said selected peer and receiving the chunk of content and randomly selected ads from the selected peer. Also described is a method including receiving a request for content, generating a list of chunks of content available for the requested content, generating a list of ads associated with the requested content, transmitting the list of available chunks of content responsive to the request, receiving a request for a selected chunk of content and transmitting the selected chunk of content and ads associated with the selected chunk of content. 1. A method for targeting advertising to a receiving peer , said method comprising:requesting content from a directory service;receiving a list of peers in a peer-to-peer network having said requested content;selecting a serving peer from said received list of peers, said serving peer may be a serving peer or a server;establishing communications with said selected serving peer;receiving a list of chunks of content and associated ads available from said selected serving peer;requesting a chunk of content and associated ads available from said selected serving peer, said associated ads are associated with said chunk of content; andreceiving said requested chunk of content and randomly selected associated ads from said selected serving peer.2. The method according to claim 1 , wherein the selected peer is randomly selected from said list of peers.3. The method according to claim 1 , wherein said received chunk of content and said randomly selected ads are one of downloaded and streamed.4. The method according to claim 1 , further comprising ...

Field of programme delivery

A receiver is disclosed, comprising means for receiving a programme stream, and means for replacing portions of the programme stream with a locally stored programme. Other aspects of the invention are also presented.

OPTICAL COMPENSATION FOR GHOSTING IN STEREOSCOPIC DISPLAYS

A method for reducing crosstalk is stereoscopic displays comprises providing a first first-eye image, a compensated image of the first first-eye image, a first other-eye image, and a compensated image of the first other-eye image; displaying each of the images at least once during a single frame flash sequence, wherein the first first-eye image is displayed to a first eye, the compensated image of the first first-eye image is displayed to another eye, the first other-eye image is displayed to the another eye, and compensated image of the first other-eye image is displayed to the first eye; wherein the compensated images can be displayed simultaneously and/or at least one of the compensated images or eye images can be displayed more than one time during a single frame flash sequence. 1. A method comprising the steps of:providing a first first-eye image for display, an inverse image of the first first-eye image, a first other-eye image for display, and an inverse image of the first other-eye image;displaying the first first-eye image to a first eye during a first interval;displaying the inverse image of the first first-eye image to another eye during a second interval, the second interval being shorter than the first interval;displaying the first other-eye image to the another eye during a third interval, the third interval being the same duration as the first interval; anddisplaying the inverse image of the first other-eye image to the first eye during a fourth interval, the fourth interval being the same duration as the second interval.2. The method of claim 1 , further comprising the steps of:displaying the first first-eye image to the first eye during a fifth interval, the fifth interval being the same duration as the first interval;displaying the inverse image of the first first-eye image to the another eye during a sixth interval, the sixth interval being shorter than the first interval;displaying the first other-eye image to the another eye during an seventh ...

METHOD FOR DECODING A STREAM OF CODED DATA REPRESENTATIVE OF A SEQUENCE OF IMAGES AND METHOD FOR CODING A SEQUENCE OF IMAGES

A method for decoding a stream of coded data representative of a sequence of images is disclosed. The decoding method comprises 1. A method for decoding a stream of coded data representative of a sequence of images divided into blocks comprising:determining a prediction block,{'sub': 'pred', 'calculating the average of said prediction block (avr),'}reconstructing, from said stream, a DC coefficient and AC coefficients relating to a current block (IresDC),calculating an average of said current block from said average of said prediction block and said DC coefficient,calculating a weighted prediction parameter as being the ratio of the average of said current block and the average of said prediction block,transforming a block of coefficients comprising a null value as DC coefficient and said reconstructed AC coefficients into a residual block,reconstructing the current block by merging said residual block and said prediction block weighted by said weighted prediction parameter.2. A method for decoding according to claim 1 , wherein during the step of calculation of the average (avr) of said current block claim 1 , said average of said prediction block is weighted by an initial weighted prediction parameter decoded from the stream of coded data.3. A method for decoding according to claim 1 , wherein during the step of calculation of the average of said current block claim 1 , said average of said prediction block is weighted by an initial weighted prediction parameter equal to the ratio between the average of a neighbourhood of the current block and the average of the corresponding neighbourhood of a reference block associated with said current block.4. A method for coding a sequence of images divided into blocks in a stream of coded data comprising:determining prediction block for a current block,calculating the average of said prediction block and the average of said current block,calculating a prediction error between the average of said current block and the average ...

METHOD AND APPARATUS FOR ROBUST AND HIGH EFFICIENCY FEC FRAME HEADER RECOVERY

Methods and apparatus for FEC frame header detection are provided, suitable for use in a DVB-C2 receiver. A first method comprises demodulating with a quadrature phase shift keying (QPSK) demapper, followed by correlation and symmetry measures for detection of a robust FEC header. A second method comprises demodulating with a 16 quadrature amplitude modulation (QAM) demapper, followed by correlation and symmetry measures for detection of a high efficiency FEC leader. Another embodiment comprises using both the first and second methods to find the FEC header because the first symbol of the FEC frame header may be sent either in robust mode or in high efficiency mode. There is also provided a method and apparatus for generating an alternate decision statistic for determining detection of the FEC frame header. 1. A method for processing FEC frame header data , comprising:demodulating a received complex data symbol;computing an estimated pseudo-noise sequence using the demodulated complex data symbol;computing a binary correlation of the estimated pseudo-noise sequence with a Reed-Muller codeword;comparing the binary correlation with a first threshold to determine if a next received complex data symbol should be demodulated;decoding an estimated Reed-Muller codeword from said demodulated complex data symbol if said binary correlation is equal or greater than the first threshold;performing majority logic decoding on the estimated Reed-Muller codeword;computing a Reed-Muller symmetry measure on said estimated Reed-Muller codeword;comparing said symmetry measure with a second threshold to determine if a next received complex data symbol should be demodulated; andperforming majority logic decoding to produce frame header data if said symmetry measure is greater than or equal to the second threshold.2. The method of claim 1 , wherein the demodulating step is performed with a quadrature phase shift keying demapper.3. The method of claim 1 , wherein the demodulating step is ...

METHOD AND APPARATUS FOR REUSING TREE STRUCTURES TO ENCODE AND DECODE BINARY SETS

Methods and apparatus are provided for reusing tree structures to encode and decode binary sets. The method encodes a binary set of data using a tree structure, wherein said encoding step encodes a portion of the binary set using a portion of the tree structure and encodes another portion of the binary set by reusing at least some of the portion of the tree structure used to encode the portion of the binary set. 1. An apparatus , comprising:an encoder for encoding a binary set of data using a tree structure, wherein said encoder encodes a portion of the binary set using a portion of the tree structure and encodes another portion of the binary set by reusing at least some of the portion of the tree structure used to encode the portion of the binary set.2. A method , comprising:encoding a binary set of data using a tree structure, wherein said encoding step encodes a portion of the binary set using a portion of the tree structure and encodes another portion of the binary set by reusing at least some of the portion of the tree structure used to encode the portion of the binary set.3. The method of claim 2 , wherein the at least some of the portion of the tree structure reused to encode the other portion of the binary set is recursively reused.4. The method of claim 2 , wherein the binary set represents a significance of transform coefficients claim 2 , and the significance of transform coefficients of a transform above a pre-specified size re-uses tree structure portions corresponding to transforms smaller than the pre-specified size.5. The method of claim 2 , wherein the apparatus is comprised in a video encoder.6. The method of claim 2 , wherein a decision of which tree structure portions are to be reused is based on properties of the content to which the binary set corresponds.7. The method of claim 6 , wherein the properties of the content that are evaluated to render the decision are derived from a coefficient significance map.8. The method of claim 6 , wherein ...

METHODS AND APPARATUS FOR IMPROVED INTRA CHROMA ENCODING AND DECODING

Methods and apparatus are provided for improved chroma encoding and decoding. An apparatus includes an encoder for encoding picture data for at least a block in a picture. Multiple partition types are supported for intra chroma coding of the block. The multiple partition types include a set of chroma partition types and a set of luma partition types. The set of chroma partition types are different than the set of luma partition types. 1. An apparatus , comprising:an encoder for encoding picture data for at least a block in a picture, wherein multiple partition types are supported for intra chroma coding of the block, the multiple partition types including a set of chroma partition types and a set of luma partition types, the set of chroma partition types being different than the set of luma partition types.2. In a video encoder , a method , comprising:encoding picture data for at least a block in a picture, wherein multiple partition types are supported for intra chroma coding of the block the multiple partition types including a set of chroma partition types and a set of luma partition types the set of chroma partition types being different than the set of luma partition types.3. The method of claim 2 , wherein a particular chroma partition type for coding the block is determined from the set of chroma partition types responsive to a luma partition type utilized to code the block or one or more neighboring blocks the luma partition type being included in the set of luma partition types.4. The method of claim 3 , wherein for the particular chroma partition type claim 3 , a largest-size available transform matching the particular chroma partition type is selected from a set of transforms.5. The method of claim 3 , wherein from among a particular luma partition type and a particular chroma partition type selected to code the block only the particular luma partition type is signaled the particular luma partition type being selected from the set of luma partition types ...

INTERVAL BASED AD INSERTION USED FOR THE DELIVERY OF VIDEO STREAMS

The present principles provide a method and apparatus for performing time window based adaptive advertisement insertion into video on demand (VOD) programs. The method inserts advertisements dynamically according to the actual content viewing time, as opposed to the fixed advertisement insertion points in traditional ad insertion. The method minimizes the negative impact caused by inserted ads to viewers in interactive session, in which trick modes, such as fast forward and rewind are frequently used. 1. A method for displaying a message comprising the steps of:determining whether a playback device is in a first mode, where a time interval is incremented during this first mode, wherein the time interval will not be incremeneted when the playback device is in a second mode associated with a trick play function;identifying an message insertion point in a multimedia stream when a time value associated with the time interval is at least one of: equal to a threshold value and exceeds said threshold value; andinserting a first message into the multimedia stream at a message insertion point that follows when said time value interval is at least one of: equal to said threshold value and exceeds said threshold value.2. The method of claim 1 , wherein the time interval comprises an amount of time within which no message is to be displayed to a user.3. The method of claim 1 , further comprising:restarting the time interval after said step of inserting; andrepeating said steps of determining, identifying and inserting for a next message to be displayed to the user, wherein the time between the display of the first message and the display of the next message to the user is substantially equal to the time interval for the first mode of the playback device which is a non-trick playback mode.4. The method of claim 1 , further comprising automatically marking the multimedia stream with message insertion points prior to broadcasting said multimedia stream.5. The method of claim 1 , ...

DISTRIBUTED FLOW MECHANISM FOR PEER-TO-PEER STREAMING

The invention concerns a method for flow control in a peer-to-peer live streaming communication network comprising a plurality of nodes characterized in that the rate at which a nod sends information to another node increases proportionally to the quantity of information present at node which has not yet reached node and decreases proportionally to a value attached to the link connecting node to node. 115-. (canceled)16. A method of flow control in a peer-to-peer live streaming communication network comprising at least a first , a second and a third node , wherein the first node is a receiving node and the second and the third node are transmitting nodes , wherein the streamed content is transmitted in packets , wherein the second and the third node have collections of packets of the same stream available for transmitting to the first node , the collections differing at least in one packet , and wherein the first and the second node and the first and the third node are neighbouring nodes , determining a first value indicating the usefulness of the second node to the first node, and a second value indicating the usefulness of the third node to the first node, wherein the usefulness is higher for that node that has more packets yet to be transmitted available than the other node,', 'increasing the data rate for links having a higher usefulness value and correspondingly decreasing the data rate for links having a lower usefulness value,', 'determining respective cost values for the link between the first node and the second node and for the link between the first node and the third node, and', 'decreasing the data rate for links having a higher cost value and correspondingly increasing the data rate for links having a lower cost value, wherein the cost value for each respective link is determined based upon one or more of packet round trip time, packet loss rate, explicit congestion notification and preassigned constant value., 'wherein the method comprises the steps ...

Setting a feature from the main menu of an application

The present invention concerns a method for displaying a program guide is proposed. The program guide contains a list of channels and a time scale and the programs which are receivable within a time represented by the time scale are displayed. The programs which are displayed correspond to the channel on which the programs are received. The inventive method further contains the following steps: checking if a specific program is selected, if a program is selected, checking if the time scale includes the start time and the end time of the program, if the time scale does not include the start time or the end time of the program, adapting the time scale such that it includes the start time and the end time of the program, and displaying the program guide using the adapted time scale.

METHOD OF DIVERSIFICATION OF A ROUND FUNCTION OF AN ENCRYPTION ALGORITHM

A method of diversification of an iterative function of an encryption algorithm. During an iteration at least one parameter other than an encryption key and an input message is modified. It is particularly advantageous that the encryption algorithm is the Advanced Encryption Standard. 1. A method for encrypting digital data using an iterative block cipher algorithm , the iterative block cipher algorithm being based on a Feistel network or on a substitution-permutation network , the method comprising the steps , at a device , of:receiving the digital data;performing a plurality of rounds of alterations on input data, wherein the plurality of rounds comprise a first round and a final round, wherein each round produces output data, and wherein the input data for the first round is the digital data and the input data for any subsequent round is the output data of the round that precedes the subsequent round; applying a first transformation function to the round input, wherein the first transformation function is a function that transforms at least one byte state of the round from a first representation to an equivalent cipher representation;', 'applying the first transformation function to at least one round key to obtain an equivalent round key for the equivalent cipher representation;', 'encrypting the round input using the equivalent cipher representation and the equivalent round key to obtain a round output; and', 'outputting the round output of the final round., 'wherein each round comprises2. The method of claim 1 , further comprising the step of applying an inverse of the first transform to the round output before outputting the round output.3. The method of claim 1 , wherein the equivalent cipher representation has been randomly chosen from a predefined set of equivalent cipher representations.4. The method of claim 1 , wherein claim 1 , for at least one round claim 1 , at least one parameter of an affine operation of the first representation has been ...

METHODS AND APPARATUS FOR ADAPTIVE GEOMETRIC PARTITIONING FOR VIDEO DECODING

There are provided methods and apparatus for adaptive geometric partitioning for video encoding and decoding. An apparatus includes an encoder for encoding image data corresponding to pictures by adaptively partitioning at least portions of the pictures responsive to at least one parametric model. The at least one parametric model involves at least one of implicit and explicit formulation of at least one curve. 1. An apparatus , comprising:a decoder for decoding image data corresponding to pictures by reconstructing at least portions of the pictures partitioned using at least one parametric model, wherein the at least one parametric model involves at least one of implicit and explicit formulation of at least one curve.2. The apparatus of claim 1 , wherein at least one of the at least one parametric model and the at least one curve is derived from a geometric signal model.3. The apparatus of claim 1 , wherein the at least one of the at least one parametric model and the at least one curve describe at least one of claim 1 , one or more image contours claim 1 , and claim 1 , one or more motion boundaries.4. The apparatus of claim 1 , wherein at least one polynomial is used as at least one of the at least one parametric model and the at least one curve.5. The apparatus of claim 1 , wherein a first order polynomial model is used as at least one of the at least one parametric model and the at least one curve.6. The apparatus of claim 5 , wherein the first order polynomial model includes an angle parameter and a distance parameter.7. The apparatus of claim 1 , wherein the at least one parametric model for a given image portion is adaptively decoded depending on a set of models when more than one parametric model is available.8. The apparatus of claim 1 , wherein said decoder performs explicit or implicit decoding of a precision of parameters of at least one of the at least one parametric model and the at least one curve using at least one high level syntax element.9. The ...

Device and method for generating confirmations of data transfers between communication equipments, by data comparison

A method is intended for generating confirmations of data transfers between communication equipments connected to a communication network. This method consists, when an application running in a first communication equipment wants to transfer data packets to at least one second communication equipment, i) in transmitting a request, comprising communication identifiers of the first and second communication equipments and requesting a data transfer control, to first and second auxiliary communication equipments acting as interfaces between the communication network and the first and second communication equipments, respectively, and ii) in storing auxiliary data representative of these data packets transferred through the first and second auxiliary communication equipments, these stored auxiliary data constituting proofs of transmission of the data packets by the first communication equipment and of reception of at least some of these data packets by the second communication equipment.

METHOD FOR TOPOLOGY CONTROL USING SECTORIZED ANTENNAS IN WIRELESS NETWORKS

The invention concerns a method for optimizing antenna pattern assignment for a first wireless communication device forming a wireless network with at least one second wireless communication device, each of said communication device being equipped with a multi-sector antenna, an antenna pattern being a combination of said antenna sectors, said communication devices being adapted for sending a request and for receiving a response using a current antenna pattern assignment, said method comprising a step of: 2. Method according to claim 1 , wherein the response received by said first communication device is negative when said second communication device determines that the first value claim 1 , is equal or greater than the second value.3. Method according to claim 1 , wherein the response received by said first communication device is positive when said second communication device determines that the first value is lower than the second value.4. Method according to claim 2 , comprising a said step of setting by said first communication device a first timeout depending on the date of sending the broadcast request claim 2 ,said step of switching from the current antenna pattern assignment to the new antenna pattern assignment by said first communication device being carried when the responses received by said first communication device from said second communication devices within said first timeout are positive.5. Method according to claim 1 , involving a further step of setting by said second communication device a second timeout claim 1 , said second communication device being blocked from modifying its current antenna pattern assignment until either said second timeout expires or when said second communication device receives a broadcast confirmation from said first communication device for acknowledging reception of the response sent by said second communication device.7. Method according to claim 2 , wherein said first communication device performs an evaluation ...

VIDEO CODING BASED ON GLOBAL MOVEMENT COMPENSATION

A method for video coding of at least one digital picture sequence is disclosed. The pictures of said sequence can be intermediary pictures or key pictures used as references for the coding by motion compensation of intermediary pictures. The intermediary pictures are coded per area based on a global motion compensation GMC in the forward and backward direction from key pictures, the areas of the intermediary picture being constituted either by merging of global motion compensated key picture areas, or by conventional coding, the choice between merging and conventional coding being made according to the result of a measurement of coherency between the signals of global motion compensated key picture areas. A video coding device and a video decoding device are also disclosed. 1. A method for video coding , at least one digital picture sequence , the pictures of said sequence being able to be intermediary pictures or key pictures used as references for the coding by motion compensation of intermediary pictures , wherein the intermediary pictures are coded per area based on a global motion compensation GMC in the forward and backward directions from key pictures , the areas of the intermediary picture being constructed either by merging of areas of global motion compensated key pictures , or by conventional coding , the choice between merging and conventional coding being made according to the result of a measurement of coherence between the signals of areas of global motion compensated key pictures.2. A method for video coding according to claim 1 , wherein the reference pictures are coded before the intermediary pictures and that at least one segmentation map associated with said pictures is calculated in a way to be able to distinguish the GMC type pixels from other pixels of these pictures.3. A method for video coding according to claim 1 , wherein the global motion parameters are estimated and coded before the coding of intermediary pictures.4. A method for video ...

SOURCE-INDEPENDENT CONTENT RATING SYSTEM AND METHOD

A source-independent content rating system and method are provided. The system includes an electronic program guide extractor for extracting program guide information relating to at least one of, programs and channels, from multiple content subscription services. A filter generates identifying information that identifies at least one of a content and a category of the content based on the received program guide information. A subscription manager receives user specified ratings and the identifying information, and manages user interface information displayed to a user. The user interface information includes at least one of the content and the category identified by the identifying information and further includes a user specified rating there for. The subscription manager migrates any user specified ratings provided with respect to a particular one of the multiple content subscription services to all other relevant ones of the multiple content subscription services. 1. A source-independent content rating system , comprising:an electronic program guide extractor for extracting program guide information relating to at least one of, one or more programs and one or more channels, from multiple content subscription services;a filter, coupled to the electronic program guide extractor, for generating identifying information that identifies at least one of a content and a category of the content based on the received program guide information; anda subscription manager, coupled to the filter, for receiving user specified ratings and identifying information, and for managing user interface information displayed to a user, the user interface information including at least one of a content and a category identified by the identifying information and further includes a user specified rating there for,wherein said subscription manager migrates user specified ratings provided with respect to a particular one of the multiple content subscription services to other relevant ones of ...

METHODS AND APPARATUS FOR DC INTRA PREDICTION MODE FOR VIDEO ENCODING AND DECODING

Methods and apparatus are provided for DC intra prediction mode for video encoding and decoding. An apparatus includes a video encoder for encoding image data for at least a portion of an input picture by deriving a direct current prediction value from a pre-determined constant and using the derived direct current prediction value for a direct current intra prediction mode. The portion is encoded using the direct current intra prediction mode. 1. An apparatus , comprising:a video encoder for encoding image data for at least a portion of an input picture by deriving a direct current prediction value from a pre-determined constant and using the derived direct current prediction value for a direct current intra prediction mode, the portion being encoded using the direct current intra prediction mode.2. In a video encoder , a method , comprising:encoding image data for at least a portion of an input picture by deriving a direct current prediction value from a pre-determined constant and using the derived direct current prediction value for a direct current intra prediction mode, the portion being encoded using the direct current intra prediction mode.3. The method of claim 2 , wherein the direct current prediction value is based on original sample data corresponding to the input picture.4. The method of claim 2 , wherein the derived direct current prediction value is used responsive to a comparison of improvement over another direct current prediction value relating to a different direct current mode claim 2 , the different direct current mode corresponding to an existing video compression standard or recommendation.5. The method of claim 2 , wherein the comparison is based on a threshold value of improvement.6. The method of claim 5 , wherein the threshold value of improvement varies responsive to a quantization parameter.7. The method of claim 5 , wherein the threshold value of improvement is stored in a look-up table.8. The method of claim 4 , wherein the comparison ...

METHOD FOR ESTIMATING LIGHT SCATTERING

The invention relates to a method for estimating the quantity of light scattered by a heterogeneous participating media, the light being transmitted by a light environment comprising a plurality of light sources. In order to improve the display while minimising the required calculation time, the method comprises steps for: 1. Method for estimating the quantity of light scattered by a heterogeneous participating media , the light being emitted by a light environment comprising a plurality of light sources , wherein the method comprises steps for:selection of some points from said media to form a first set of points of said media,for each point of said first set, estimation of a plurality of light intensity reduction values along a plurality of particular light emission directions,For each point of said first set, estimation of first projection coefficients representative of light intensity reduction in said point by projection of said light intensity reduction values in an orthonormal basis of spherical functions, andestimation of the quantity of light scattered by said media, according to at least one scattering direction of the light, using said first estimated projection coefficients.2. (canceled)3. Method according to claim 1 , wherein the estimation of said light intensity reduction values is carried out by sampling of said particular light emission directions.4. Method according to claim 1 , wherein it comprises a step of estimation of second projection coefficients in said orthonormal basis of spherical functions claim 1 , said second projection coefficients being representative of the incident light for a set of points of said light environment.5. Method according to claim 1 , wherein it comprises a step of estimation of third projection coefficients in said orthonormal basis of spherical functions claim 1 , said third projection coefficients being representative of the phase function for a second set of points of said media.6. Method according to claim 1 , ...

METHOD AND SYSTEM FOR IMPLEMENTING QUALITY OF SERVICE MANAGEMENT IN INFINIBAND NETWORKS

The present invention relates to a method and a system for processing image data. The method includes receiving a request by a quality of service QoS manager from a user application to reserve bandwidth for transmitting data over the network. The method further provides for acquiring a network representation by the QoS manager from a subnet manager for evaluating network bandwidth for transmitting the data over the network. The method also performs the steps of sending a request by the QoS manager to the subnet manager to set network parameters if network bandwidth is available sufficient for transmitting the data over the network, and converting the network parameters by the subnet manager into subnet management packets SMPs. Finally, the method provides for allocating by the QoS the network, the bandwidth for transmitting the data. 1. A method of transmitting data over a network , comprising:receiving a request, in real time, by a quality of service, QoS, manager from a user application to reserve bandwidth for transmitting data over the network, wherein the QoS manager is an extension to a subnet manager of the network;acquiring a network representation by the QoS manager from the subnet manager for evaluating network availability for transmitting the data over the network;sending a request by the QoS manager to the subnet manager to set network parameters if the network is available for transmitting the data over the network;converting the network parameters by the subnet manager into subnet management packets, SMPs, wherein the subnet management packets define a path for transmitting the data;allocating, in real time, by the QoS manager the bandwidth for transmitting the data; andtransmitting the data, in real time, over the network.2. The method of transmitting data over a network according to claim 1 , wherein the network comprises a switched fabric network.3. The method of transmitting data over a network according to claim 2 , wherein the switched fabric ...

Method and apparatus for composition of subtitles

Embodiments of the invention include a subtitling format encompassing elements of enhanced syntax and semantic to provide improved animation capabilities. The disclosed elements improve subtitle performance without stressing the available subtitle bitrate. This will become essential for authoring content of high-end HDTV subtitles in pre-recorded format, which can be broadcast or stored on high capacity optical media, e.g. the Blue-ray Disc. Embodiments of the invention include abilities for improved authoring possibilities for the content production to animate subtitles. For subtitles that are separate from AV material, a method includes using one or more superimposed subtitle layers, and displaying only a selected part of the transferred subtitles at a time. Further, colors of a selected part of the displayed subtitles may be modified, e.g. highlighted.

Automatic media asset update over an online social network

In response to a request for media, a determination is made whether a user should receive the requested media. When the user has the proper content privilege, a content manager will authorize the delivery of such content. Otherwise, alternative content is delivered to the user based on the content privileges.

REUSE OF A SWITCH IC AS A STEP ATTENUATOR

The present invention concerns a system and associated method for providing attenuation of a received signal in a two-way communication circuit without the use of a separate switchable attenuator. Specifically, the attenuation provided by a transmit/receive switch set to the transmit position during reception is used to provide attenuation to a signal reception path. 1. A method for data communication comprising the steps of:coupling first signal processing circuitry to a two-way signal path during a transmission mode of operation;determining whether a parameter of a signal received via said two-way signal path will be above a threshold; andcoupling second signal processing circuitry to said two-way signal path during a first reception mode of operation responsive to a determination that said parameter of said received signal will not be above said threshold; andcoupling said first signal processing circuitry to said two-way signal path during a second reception mode of operation responsive to a determination that said parameter of said received signal will be above said threshold.2. The method of wherein said coupling second signal processing circuitry to said two-way signal path provides a substantially unattenuated signal from said two-way signal path to said second signal processing circuitry in said first reception mode of operation.3. The method of wherein said coupling said first signal processing circuitry to said two-way signal path provides an attenuated signal from said two-way signal path to said second signal processing circuitry in said second reception mode of operation.4. The method of wherein said signal is attenuated within the range of 10 dB to 30 dB claim 3 , inclusive.5. The method of wherein said coupling steps are performed using a switch.6. The method of wherein said determining step comprises measuring a parameter of a signal received via said two-way signal path.7. The method of wherein said determining step comprises determining that ...

METHOD AND SYSTEM FOR DIGITAL CINEMA PRESENTATION

A method and system for digital cinema presentation are disclosed. The method provides for automatic comparison of a playlist against at least one attribute relating to digital content, and automatically skipping one or more compositions during playout of content in the playlist based on the comparison results. 1. A method for use in a digital cinema , comprising:providing at least one attribute relating to digital content;automatically comparing the at least one attribute with a digital cinema playlist having references to one or more compositions; andautomatically skipping at least one composition during playout of content in the digital cinema playlist in accordance with results of the comparing step.2. The method of claim 1 , wherein the at least one attribute is one of a playlist identifier claim 1 , an annotation text claim 1 , an issuer of a playlist claim 1 , a content title claim 1 , a content version claim 1 , a rating claim 1 , and language.3. The method of claim 1 , wherein the at least one attribute is provided in a list representing operating policies in the digital cinema.4. The method of claim 3 , wherein the list includes a field in the digital cinema playlist and a test for use in the comparing step.5. The method of claim 1 , wherein the comparing step is performed during one of: editing of the digital cinema playlist and real-time playout of the digital cinema playlist.6. The method of claim 1 , wherein the skipping step further includes:identifying at least one composition in the playlist that satisfies a condition with respect to the at least one attribute;creating a revised playlist that excludes the at least one composition; andplaying out digital content from the revised playlist.7. The method of claim 1 , wherein the digital cinema playlist is provided by one of: a content provider and content distributor.8. A digital cinema system claim 1 , comprising:a storage device for storing at least one attribute relating to digital content; anda ...

NETWORK BASED POWER MANAGEMENT

A method and device are described including receiving an input signal at a device, determining a source of the received input signal and selectively powering on portions of the device responsive to the determination. 1. A method , said method comprising:receiving an input signal at a device;determining a source of said received input signal;determining a mode said received input signal originated from a network delivering content, wherein said mode is one of a multicast mode and a network mode;selectively powering on portions of said device responsive to said determination; anddetermining and transmitting credit information for energy usage to a billing center responsive to said mode determination.2. (canceled)3. The method according to claim 1 , further comprising powering on a multicast receiver claim 1 , a transport processor claim 1 , an audio/video decoder claim 1 , a user interface display processor claim 1 , storage and a security processor claim 1 , said security processor including conditional access processing responsive to said determination.4. The method according to claim 1 , further comprising powering on a transport processor claim 1 , storage and a security processor claim 1 , said security processor including conditional access processing responsive to said determination.5. The method according to claim 1 , further comprising powering on a multicast receiver claim 1 , a transport processor claim 1 , storage and a security processor claim 1 , said security processor including conditional access processing responsive to said mode determination.6. The method according to claim 1 , further comprising using a two way channel in a digital cable infrastructure.721. The method according to claim claim 1 , further comprising:determining if said received input signal includes a request to join a multicast group; andjoining said multicast group specified in said received input signal responsive to said fourth determination.8. A device comprising:means for ...

RENDERING METHOD

As to enhance the rendering while minimizing needed computation time, the method comprises the steps of determining noise information, said noise information being representative of noise level estimated for at least a part of said image; the noise information being determined for the achromatic component of the image; sampling said part of the image according to said noise information; and rendering said at least a part of the image according to said sampling. 1. Method for rendering an image , wherein the method comprises the steps of:determining a noise information, said noise information being representative of at least a noise level estimated for at least a part of said image, the noise information being determined for the achromatic component of the image;sampling said at least a part of the image according to said at least a noise information; andrendering said at least a part of the image according to said sampling.2. Method according to claim 1 , wherein it comprises the step of representing said noise information on said image.3. Method according to claim 2 , wherein said noise information is represented in a graphical way.4. Method according to claim 1 , wherein said part of the image is oversampled if said at least a noise information is more than a threshold value.5. Method according to claim 1 , wherein it comprises a step of requesting the determining of said noise information.6. Method according to claim 1 , wherein it comprises a step of requesting the sampling of said part of the image.7. Method according to claim 1 , wherein it comprises a step of requesting the rendering of said part of the image.8. Method according to claim 1 , wherein said image is divided into a plurality of blocks of pixels claim 1 , said noise information being determined for each block of said image. The present invention relates to the field of synthesis image rendering in two or three dimensions. The invention is also related to the context of special effects for a real- ...

SET-TOP BOX HAVING MICROPERFORATIONS

The set-top box includes an outer casing having micro-perforations, an interior bottom frame having a centrally located heatsink, a circuit board on the bottom frame and a louvered heatsinking element over the circuit board and in thermal contact with the heatsink. 1. An electronic device comprising:an outer casing having a top and a bottom, said outer casing having heat venting perforations;a bottom frame inside said outer casing, said bottom frame having a heatsink surrounded by a peripheral area;an interior electronic component over the bottom frame; anda heatsinking element over the interior electronic component, said heatsinking element having central region in thermal contact with the heatsink and having a peripheral portion, said peripheral portion having louvers, wherein said heatsinking element is under the top.2. The electronic device of wherein the perforations have an opening dimension of at most 1 mm.3. The electronic device of wherein the perforations have an opening dimensions within the range of 0.5 to 1 mm.4. The electronic device of wherein the heatsink is raised with respect to the peripheral area.5. The electronic device of wherein the central region is depressed with respect to the peripheral portion.6. The electronic device of wherein the interior electronic component is a circuit board and has a thermal contact region that permits the heatsink and central region to be in thermal contact.7. The electronic device of wherein at least one louver is oriented in one direction and at least one other louver is oriented in another direction.8. The electronic device of wherein the peripheral area has at least one aperture.9. The electronic device of whereinthe bottom frame has two opposing sidewalls each having openings and clasps adjacent said openings; andthe electronic device further comprises end caps having engagement members that engage the clasps through said openings, thereby locking the end caps to the bottom frame.10. The electronic device of ...

WLAN DATA RATE ADAPTION METHOD

A method of communication between a transmitter and a receiver over a channel is provided. The transmitter is capable of transmitting packets with multiple data rates, each of which adapts to a respective channel condition with regards to the performance of the communication. The method comprises the steps of at the level of the transmitter: upon detection of a disappearance of deterioration of the channel condition, transmitting packets with a data rate selected from a group of stable data rates that are stably used before the disappearance of the deterioration but larger than the last data rate before disappearance of the deterioration. 114-. (canceled)15. A method of communication between a transmitter and a receiver over a channel , wherein the transmitter is capable of transmitting packets with multiple data rates , each of which adapts to a respective channel condition with regards to the performance of the communication , characterized by the steps of , at the level of the transmitter:upon detection of a disappearance of deterioration of the channel condition, transmitting packets with a maximum data rate of a group of stable data rates that are stably used before the disappearance of the deterioration but said data rate selected being larger than the last data rate before disappearance of the deterioration, wherein a stable data rate is a rate at which the number of continuously transmitted packet is equal to or larger than a predetermined value or at which the total transmission time is equal to or larger than a predetermined value.16. The method according to claim 15 , further comprising recording the group of stable data rates before the disappearance of the deterioration in a table.17. The method according to claim 15 , wherein the detection of a disappearance of the deterioration is a function of packet loss rate of the transmission and/or the strength and SNR of signals received by the receiver.18. A transmitter which is capable of transmitting packets ...

METHOD FOR IMAGE CODING AND DECODING

A method for coding an image divided into sub-regions is described. The coding method comprises the following steps: 2. Method for coding according to claim 1 , which further comprises a step of coding a quality map wherein said quality map associates with each sub-region of the source image a coding quality among said first quality and said second quality.3. Method for coding according to claim 1 , wherein the extraction step of sub-regions representative of other sub-regions of the source image also comprises a step of refinement of the texture of said other decoded sub-regions by using the texture of said decoded current sub-region and in which said metric is calculated between said decoded current sub-region and said other refined sub-regions.4. Method for coding according to claim 1 , wherein the extraction step of sub-regions representative of other sub-regions of the source image also comprises a step of refinement of the texture of said other decoded sub-regions by using the texture of said decoded current sub-region and in which said metric is calculated between a refined image comprising said other refined sub-regions and said source image.5. Method for coding according to claim 1 , wherein said metric is mutual information and in which the step of extraction comprises the extraction from said source image of N sub-regions for which the metric is highest.6. Method for coding according to claim 1 , wherein said metric is a distortion and in which the step of extraction comprises the extraction from said source image of N sub-regions for which the metric is lowest.7. Method for coding according to claim 3 , wherein said step of refinement comprises claim 3 , the replacement claim 3 , in a frequency domain claim 3 , of each coefficient corresponding to one of the K highest frequencies of one of the other decoded sub-regions by a linear combination of said coefficient of said other decoded sub-region and a coefficient corresponding to said decoded current sub- ...

STEREO-IMAGE QUALITY AND DISPARITY/DEPTH INDICATIONS

A variety of implementations are described. At least one implementation modifies one or more images from a stereo-image pair in order to produce a new image pair that has a different disparity map. The new disparity map satisfies a quality condition that the disparity of the original image pair did not. In one particular implementation, a first image and a second image that form a stereo image pair are accessed. A disparity map is generated for a set of features from the first image that are matched to features in the second image. The set of features is less than all features in the first image. A quality measure is determined based on disparity values in the disparity map. The first image is modified, in response to the determined quality measure, such that disparity for the set of features in the first image is also modified. 121-. (canceled)22. A method comprising:accessing a first image and a second image that form a stereo image pair;generating a disparity map for a set of features from the first image that are matched to features in the second image;determining multiple quality measures based on disparity values from the disparity map for less than all features in the first image, the multiple quality measures including maximum disparity for the stereo image pair and minimum disparity for the stereo image pair, and the multiple quality measures each having a corresponding target quality range;determining that at least one of the multiple quality measures is outside of the corresponding target quality range; andmodifying at least the first image relative to the second image, such that disparity for the set of features in the first image is also modified, and the at least one quality measure is moved into the corresponding target quality range.23. The method of wherein modifying at least the first image results in all of the multiple quality measures being within the corresponding target quality ranges.24. The method of wherein modifying at least the first ...

IMAGE PAIR PROCESSING

At least one implementation determines whether two cameras are in parallel or are converging, based on an automated analysis of images from the cameras. One particular implementation determines the disparity of a foreground point and a background point. If the sign of the two disparities are the same, then the particular implementation decides that the cameras are in parallel. Otherwise, the particular implementation decides that the two cameras are converging. More generally, various implementations access a first image and a second image that form a stereo image pair. Multiple features are selected that exist in the first image and in the second image. An indicator of depth is determined for each of the multiple features. It is determined whether the first camera and the second camera were arranged in a parallel arrangement or a converging arrangement based on the values of the determined depth indicators. 1. A method comprising:accessing a first image and a second image that form a stereo image pair, the first image having been captured from a first camera, and the second image having been captured from a second camera in either a parallel arrangement or a converging arrangement with the first camera; using a feature selection process to select candidate features in the first image and candidate features in the second image, and', 'using a feature matching process to determine which of the candidate features in the first image match candidate features in the second image;, 'selecting multiple features that exist in the first image and in the second image, wherein selecting the multiple features comprisesdetermining an indicator of depth for each of the multiple features; anddetermining whether the first camera and the second camera were arranged in the parallel arrangement or the converging arrangement based on values of the determined indicators of depth.2. The method of wherein determining whether the first camera and the second camera were arranged in the ...

STATMUX METHOD FOR BROADCASTING

A statistical multiplexing method is provided that comprises accessing a plurality of video sequences, wherein the video sequences are each assigned to a unique channel in a common broadcast system; collecting information from a plurality of the unique channels assigned to encode the corresponding video sequences; applying rho-domain analysis to the video sequences; and determining bitrate allocation for the channels responsive to the information collect and the rho-domain analysis. 1. A method comprising the steps of:accessing a plurality of video sequences, said video sequences each assigned to a unique channel in a common broadcast system;collecting information from a plurality of the unique channels assigned to encode the corresponding video sequences;applying rho-domain analysis to the video sequences; andallocating bitrates among the channels responsive to the collecting and applying steps.2. The method of claim 1 , wherein the information is bandwidth information.3. The method of further comprising determining percentages of zero coefficients for quantization parameters for frames in the video sequences in the applying step.4. The method of further comprising determining complexity metrics in the applying step.5. The method of further comprising determining boundaries of groups of pictures in the video sequences.6. The method of further comprising applying sliding windows to the video sequences claim 5 , wherein consecutive sliding window overlap.7. The method of wherein accessing claim 6 , collecting claim 6 , applying claim 6 , and determining steps are performed within each of the sliding windows.8. The method of further comprising encoding in a look-ahead mode in the rho-domain analysis.9. The method of further comprising:encoding in a look-ahead mode in the rho-domain analysis, wherein a rho-domain rate model R(QP)=θ·(1−ρ(QP)) is generated where theta (θ) is the model parameter depending on picture coding type (I, P or B) and video content and ρ(QP) is ...

ENABLING SIMULTANEOUS TRANSMISSIONS IN WIRELESS NETWORK

A method for enabling simultaneous data transmissions in a wireless network includes broadcasting a first signal from a first node, receiving the first signal by a second node, and transmitting a second signal derived from the first signal by the second node. The second signal is received by the first node. A third signal is transmitted from a third node to the first node simultaneous with transmitting the second signal. The first node receives a combination signal which includes the second signal and the third signal. The first node then decodes the third signal from the combination signal using the first signal. 1. A method for simultaneous data transmissions in a wireless network , the method comprising:broadcasting a first signal from a first node;receiving the first signal by a second node;transmitting a second signal derived from the first signal, by the second node, wherein the second signal is received by the first node;transmitting a third signal from a third node to the first node simultaneous with transmitting the second signal, wherein the first node receives a combination signal comprising the second signal and the third signal; anddecoding, at the first node, the third signal from the combination signal using the first signal.2. The method of claim 1 , wherein broadcasting comprises a broadcast transmission from an access point.3. The method of claim 1 , wherein receiving the first signal by a second node comprises receiving the first signal by a relay node.4. The method of claim 1 , wherein transmitting a second signal derived from the first signal comprises transmitting the second signal by a relay node that receives the first signal and then amplifies and forwards the first signal as the second signal.5. The method of claim 1 , further comprising:receiving the first signal by a fourth node;receiving the second signal by the fourth node;decoding, by the fourth node, the first signal using information of the received first signal and the received ...

PROCESS FOR CODING VIDEO DATA OF A SEQUENCE OF IMAGES

The process comprising splitting of an image into blocks, intra coding of a current block using spatial prediction based on a matching pursuit algorithm selecting, from a dictionary of atoms, the atom the most correlated with a causal neighborhood of the current block, is characterized in that it performs the following steps: determination of the two dimensional shift between the causal neighborhood and the selected atom, generation of at least, a new phased atom taking into account the values of the two dimensional spatial shift, use of this new atom for intra prediction, according to the matching pursuit algorithm, if better correlated than the selected one. Application to video data compression. 1. A process for the coding of video data of a sequence of images comprising splitting of an image into blocks , intra coding of a current block using spatial prediction based on a matching pursuit algorithm , selecting , from a dictionary of atoms whose theoric expressions are known , the atom the most correlated with a causal neighborhood of the current block , further comprising:determination of a two dimensional spatial shift between the causal neighborhood and the selected atom,generation of, at least, a new phased atom taking into account the values of the two dimensional spatial shift,use of this new phased atom for intra prediction, according to the matching pursuit algorithm, if better correlated than the selected one.2. A process according to claim 1 , wherein atoms of the dictionary are extracted from DCT (Discrete Cosine Transform) and/or DFT (Discrete Fourier Transform) and/or other transforms.4. A process according to claim 1 , wherein the causal neighborhood corresponds to the previously coded blocks adjacent to the current block.5. A process according to claim 1 , wherein a matrix A composed of the atoms claim 1 , to which is multiplied a prediction vector X of pixels to give the vector Y relating to the pixels of the original signal claim 1 , is ...

HUMAN INTERACTION TRAJECTORY-BASED SYSTEM

A method and associated apparatus for using a trajectory-based technique to detect a moving object in a video sequence at incorporates human interaction through a user interface. The method comprises steps of identifying and evaluating sets of connected components in a video frame, filtering the list of connected components by comparing features of the connected components to predetermined criteria, identifying candidate trajectories across multiple frames, evaluating the candidate trajectories to determine a selected trajectory, eliminating incorrect trajectories through use of the interface and processing images in said video sequence responsive to the evaluating and eliminating steps. 1. A method comprising the steps of:identifying sets of connected components in a video frame of a video sequence;displaying alternate trajectories of the selected connected components through a user interface;removing at least one alternate trajectory of the selected connected components responsive to a user interface input; anddisplaying images of said video sequence responsive to the removing step.2. The method of comprising the steps of:evaluating each of said sets of connected components with regard to at least one image feature;comparing the at least one image feature of each of said sets of connected components to predetermined criteria to produce a filtered list of connected components;repeating said identifying, evaluating, and comparing steps for contiguous frames;selecting one of the connected components;generating a set of alternate trajectories of the selected connected component be generated across multiple frames for the displaying step;3. The method of further comprising the steps of:generating a confidence level for the alternate trajectories belonging to the selected connected component; andeliminating alternate trajectories having a confidence level below a predetermined value.4. The method of wherein the at least one image feature comprises area claim 3 , ...

SYSTEM AND METHOD FOR CONSERVING ENERGY IN A DIGITAL HOME NETWORKING DEVICE

A method and apparatus configures a power level for a device able to receive audio, video, and data signals. An input signal is received by a receiver capable of receiving broadcast data signals and digital home networking signals. The system determines if the receiver is operating in a first mode having a first power level or a second mode having a second power level based on a type of input signal received by the receiver. A control signal is generated for modifying at least one setting on a first circuit for configuring the first circuit to operate according to the first power level if the input signal is a first type of input signal. The control signal is provided to the first circuit and the first circuit is configured to operate according to the first power level based on the control signal. 1. A method comprising the steps of:receiving at least one of a first type of input signal and a second type of input signal;determining if the received signal is of the first type of input signal or the second type of input signal;generating a first control signal associated with a first operational mode, the first control signal configuring a power level for use in a first mode of operation if the received signal is of the first type of input signal;generating a second control signal associated with a second operational mode, the second control signal configuring a power level for use in a second mode of operation if the received signal is of the second type of input signal;providing the first control signal and second control signal to a first circuit; aridconfiguring a power level of the first circuit based on the first control signal and second control signal.2. The method of wherein the power level for use in the first mode of operation is less than the power level for use in the second mode of operation.3. The method of claim 1 , further comprising the step of:providing the first control signal to a second circuit associated with the first circuit for configuring a ...

Method and device for calculating blur in video images

Blur is one of the most important features related to image quality. Accurately estimating the blur level of an image is a great help to accurately evaluate its quality. A method for calculating blur of video images comprises calculating a horizontal blur value, and determining characteristic parameters of the video images, including at last progressive/interlaced and spatial resolution level. If the video images are progressive, also a vertical blur value is calculated, and combined with the horizontal blur value. The next step is normalizing the horizontal blur value, or the combined horizontal and vertical blur value, according to predefined min and max values, wherein the min and max values are adapted to the spatial resolution level.

RELIABLE DIVERSITY ARCHITECTURE FOR A MOBILE DTV SYSTEM

A digital data stream comprises alternating groups of information blocks and groups of parity blocks, each group of information blocks includes multiple information blocks and each group of parity blocks includes multiple parity blocks. An apparatus for receiving a digital data stream comprises a demodulator that receives and demodulates a digital data stream. An equalizer compensates for distortions in the digital data stream. A delay buffer generates a first stream of digital data representing the compensated digital data stream and a second stream of digital data representing a delayed version of the compensated digital data stream. A forward error correction block receives and processes the first and second streams of digital data from the delay buffer, and outputs an error corrected stream of digital data. A transport block receives and processes the error corrected stream from the forward error correction block for display 1. An apparatus for receiving a digital data stream , the digital data stream comprising alternating groups of information blocks and groups of parity blocks , each group of information blocks including a plurality of information blocks and each group of parity blocks including a plurality of parity blocks , the apparatus comprising:a demodulator that receives the digital data stream and demodulates the digital data stream;an equalizer, that compensates for distortions in the digital data stream to generate a compensated digital data stream;a delay buffer, that generates a first stream of digital data representing the compensated digital data stream and a second stream of digital data representing the compensated digital data stream delayed for a predetermined period;a forward error correction block, that receives and processes the first and second streams of digital data from the delay buffer, and outputs an error corrected stream of digital data; anda transport block, that receives and processes the error corrected stream from the forward ...

METHOD TO MANAGE AN OPPORTUNISTIC COMMUNICATION NETWORK

This relates to message propagation in an opportunistic communication network. Nodes of the network each have a ranking which is compared when the nodes connect, and message is transferred from one node to the other in dependence on the relative values of their respective rankings. The ranking is dependent on a plurality of parameters. One parameter is a social parameter determined by the social contacts of a user associate with a node, for example determined from the contact directory of that person either locally or from a central database such that located on a Face book servicer. Another parameter is the number of physical connections established by a node. The ranking values of connecting nodes is updated when they connect. By combining both parameters, a more efficient forwarding path for messages is obtained. 1. Method for managing an opportunistic communication network comprising a plurality of terminals , each of said terminals being able to transmit a message to an intermediate neighboring terminal when a connection is established with said intermediate neighboring terminal , wherein it comprises:the step of identifying for each terminal a ranking derived from both a social parameter, based on established contacts of the terminal user in a social network, and a communication parameter, based on established connections of said terminal in the opportunistic network,the step for a transmitting terminal, of establishing a connection with an intermediate neighboring terminal, to compare their respective rankings so that the message is transmitted to the intermediate neighboring terminal if the ranking value of said intermediate neighboring terminal is higher than the ranking value of the transmitting terminal.2. Method according to wherein it further comprises the step for terminals to exchange and store their respective ranking values when they establish a connection.3. Method according to wherein it further comprises the step of ranking a target terminal in ...

METHOD FOR ADDING A VOICE CONTENT TO A VIDEO CONTENT AND DEVICE IMPLEMENTING THE METHOD

The invention relates to a method for adding a voice content to an audiovisual document. Initially, a video document is received in a device for reproducing and recording sound signals. The video content received possesses degraded areas and at least one non-degraded area perfectly visible to a user during the reproduction of said document. Said user reads a text which is recorded in the device. The text is read at determined moments of the reproduction of the video content received by using visual elements appearing in the non-degraded areas. A complete video document is generated by assembling the audiovisual document and at least one newly created sound content. 1. A method for adding a new voice content to an audiovisual document , comprising a step of receiving a video document composed of images in a reproduction device , wherein certain images of the video document received possess at least one degraded area and at least one non-degraded area , the method furthermore comprising the following steps:during the reproduction of the video document, acquisition of at least one voice content at a moment defined by a time marker, said time marker defining a zone of the video document whose images contain visual elements appearing in at least one non-degraded area,transmission to a manager of audiovisual documents of the at least one newly acquired voice content and of the associated time marker,assembly of the audiovisual document and of at least one newly acquired sound content in such a way that the voice content is reproduced at the moment defined by the associated time marker.2. The method for adding a new voice content as claimed in ; wherein it comprises a step of transmitting a text representing the speech of the new voice content and of a plurality of time markers associated with the text claim 1 , and a step of display by the reproduction apparatus of at least one part of said text at the moment indicated by said time markers during the reproduction of the ...

Methods and apparatus for adaptive coupled pre-processing and post-processing filters for video encoding and decoding

Methods and apparatus are provided for adaptive coupled pre-processing and post-processing filters for video encoding and decoding. The apparatus and method encode input data for a picture into a resultant bitstream, wherein said video encoder comprises a pre-filter and a post-filter coupled to the pre-filter, wherein said pre-filter filters the input data for the picture and the post-filter filters in-loop reconstructed data for the picture.

METHOD AND APPARATUS FOR CHANNEL ESTIMATION

The present invention provides a method for channel estimation used in a receiver of a multi-carrier communication system, including: receiving a multi-carrier symbols from a transmitter of the multi-carrier communication system; and obtaining channel information of sub-carriers carrying data of the multi-carrier symbols, using selectively time direction interpolation and frequency direction interpolation for channel information of a plurality of scatter pilots of the multi-carrier symbols.

VIDEO CODING USING COMPRESSIVE SENSING

Methods and apparatus are provided for video encoders and decoders using compressive sensing. The encoding method encodes an image block in a picture by generating a measurement vector for the image block, encoding the measurement vector, and reconstructing the image block by minimizing a signal sparsity of the image block responsive to the encoded measurement vector, the measurement vector including transform coefficients relating to the image block. A corresponding decoding method decodes an image block for a picture by receiving a measurement vector for the image block, decoding the measurement vector, and reconstructing the image block by minimizing a signal sparsity of the image block responsive to the decoded measurement vector, wherein the measurement vector includes transform coefficients relating to the image block.

DATA PRUNING FOR VIDEO COMPRESSION USING EXAMPLE-BASED SUPER-RESOLUTION

Methods and apparatuses for data pruning for video compression using example-based super resolution are provided. A method and apparatus for encoding is provided in which patches of video are extracted from input video, grouped together using a clustering method, and representative patches are packed into patch frames. The original video is downsized and sent either along with, or in addition to, the patch frames. At a decoder, the method and apparatus provided extract patches from the patch frames and create a patch library. The regular video frames are upsized and the low resolution patches are replaced by patches from the patch library by searching the library using the patches in the decoded regular frames as keywords. If there are no appropriate patches, no replacement is made. A post processing procedure is used to enhance the spatiotemporal smoothness of the recovered video. 1. A method of video processing , comprising:extracting patches of video from a received video signal;clustering the patches into groups;downsizing the original video;packing representative patches from the groups into patch frames; andtransmitting the downsized original video with the patch frames to a decoder.2. The method of claim 1 , further comprising concatenating the data for the patch frames to the received video signal.3. The method of claim 2 , wherein the concatenating is performed by interspersing data of the regular frames with data of the patch frames.4. The method of claim 1 , wherein extracting is performed based on features of the video.5. The method of claim 1 , wherein clustering is performed based on a modified k-means algorithm.6. The method of claim 1 , wherein clustering is performed using incremental clustering.7. The method of claim 1 , wherein the patch frames are downsized by dividing them into blocks.8. The method of claim 1 , wherein the patch frames are downsized by using staggering sampling.9. The method of claim 2 , wherein the position of the patches in ...

APPARATUS AND METHOD FOR TRANSFORMING A CONSUMER DEVICE ENCLOSURE

A transformable enclosure enabling increased functionality, such as storage capacity, is provided. The apparatus enables modular units to be attached to increase capacity without compromising the integrity of the overall structure. The apparatus includes a housing that contains a signal processing circuit, the housing including interfaces for coupling a plurality of removable modules to the circuit, a base coupled to the housing that supports the housing in at least two orientations. The apparatus operates in a first mechanical orientation without the plurality of removable modules coupled to the interfaces and operates in a second mechanical orientation with the plurality of removable modules coupled to the interfaces. A cooling device provides cooling for the circuit in the first mechanical orientation and the plurality of removable modules in the second mechanical orientation.

METHOD AND APPARATUS FOR RETRANSMISSION DECISION MAKING

A method and apparatus are described including parsing an abstraction-layer header and assigning a priority to a packet to be transmitted. A network monitor of a transmitter is connected between a network interface and a retransmission decision maker for deciding which packets to retransmit, for example, based on the assigned priority and collected network statistics or conditions, for example, packet loss rate. A network monitor may also be provided at a receiver for collecting current network statistics such as cumulative number of packets lost and for providing such statistics to a transmitter. The method further includes buffering the data to be transmitted along with the assigned priority, transmitting data retrieved from a buffer via a datagram protocol, receiving a request for retransmission of data, determining if the requested data is in the buffer and retransmitting the requested data via a protocol that provides end-to-end acknowledgement of data and error recovery. 1. A method comprising:monitoring a digital data network to collect network transport statistics; anddeciding whether to retransmit a digital data packet to a receiver based on said network transport statistics.2. The method according to whereincollecting network statistics comprises collecting statistics from a receiver to generate a lost packet rate at the transmitter.3. The method according to whereinsaid packet retransmit decision is based on comparing said generated lost packet rate with a predetermined threshold.4. The method according to whereincollecting network statistics comprises monitoring network level transmission statistics and estimating available bandwidth.5. The method according to whereinsaid packet retransmit decision is based on comparing said estimated available bandwidth with a predetermined threshold.6. The method according to whereinsaid monitoring comprisesmonitoring receiver missing packet data and recording data of one of packet loss rate and available bandwidth ...

Block-based interleaving

At least one implementation interleaves blocks from a stereo-image pair and enables intra-coding of the interleaved image using corresponding blocks as references. One particular implementation accesses a first image that includes multiple blocks, one of which is a first-image block. A second image is accessed that includes multiple blocks, one of which is a second-image block that has overlapping content with the first-image block. The multiple blocks of the first and second images are interleaved on a block basis to form an interleaved image. At least a portion of the interleaved image is encoded by encoding the first-image block using the second-image block as a reference. Another implementation provides the encoded portion in signal. Yet another implementation accesses the encoded image and decodes the portion by using the second-image block as a reference.

REDUCING CHROMATIC ABERRATION

At least one implementation reduces chromatic aberration by aligning pixel in a color channel according to displacement from corresponding pixels in another color channel. In one particular implementation, a feature is calculated for a first block of pixels in a first color channel of an image. The feature is calculated for a second block of pixels in a second color channel of the image. Displacement is estimated between the first color channel and the second color channel by comparing the feature for the first block and the feature for the second block. At least a portion of the first color channel is aligned with at least a portion of the second color channel based on the estimated displacement. 1. A method comprising:calculating a feature for a first block of pixels in a first color channel of an image, the feature for the first block being independent of pixel values in a second color channel of the image;calculating the feature for a second block of pixels in a second color channel of the image, the feature for the second block being independent of pixel values in the first color channel;estimating displacement between the first color channel and the second color channel by comparing the feature for the first block and the feature for the second block; andaligning at least a portion of the first color channel with at least a portion of the second color channel based on the estimated displacement.2. The method of wherein the first block is associated with a given pixel location in the first color channel.3. (canceled)4. (canceled)5. The method of wherein the second block is associated with a displaced pixel location in the second color channel.6. The method of wherein estimating displacement is for the given pixel location.7. The method of wherein aligning comprises aligning the given pixel location and the displaced pixel location.8. The method of wherein the feature is a substantially color-channel-invariant feature.9. The method of wherein the feature is ...

METHOD FOR SYNCHRONIZED CONTENT PLAYBACK

It is provided a method for synchronizing content playback at the presentation level wherein, a first content is presented on a first device and a second content that is the same as or correlated with the first content is presented on a second device. The method comprises steps of receiving status messages from the first device and the second device, wherein the status messages comprise information about playback positions of the first content and the second content currently being playbacked at the presentation level of the first device and the second device; and in response to differences between playback positions of the first content and the second content comprised in the status messages being above a threshold value, performing adjustment to maintain difference of playback positions of the first content and the second content at the presentation level of the first device and the second device below the threshold value. 110-. (canceled)11. A method for synchronizing content playback at the presentation level , wherein , a first content is presented on a first device and a second content that is the same as or correlated with the first content is presented on a second device , comprising the steps ofreceiving status messages from the first device and the second device, wherein the status messages comprise information about playback positions of the first content and the second content currently being playbacked at the presentation level of the first device and the second device; andin the response to difference between playback positions of the first content and the second content comprised in the status messages being above a threshold value, performing adjustment to maintain difference of playback positions of the first content and the second content at the presentation level of the first device and the second device below the threshold value.12. The method of claim 11 , wherein status messages are periodically received from the first device and the second ...

METHODS AND APPARATUS FOR MEDIA ACCESS CONTROL IN TV WHITE SPACE

Methods and apparatus for using 802.11 Wireless LANs in TV white space that allow networks with overlapping wireless regions to coexist. The methods and apparatus offer a solution to the mutated hidden node problem. Wireless devices communicate with a coexistence manager over a backhaul connection. Signals are sent by a low power station indicating a request to use a portion of spectrum. The coexistence manager communicates with a plurality of second stations that transmit at a higher power level. The plurality of second stations either send a signal to the first station indicating that it can transmit, or send signals so that the first station can determine which interference it is receiving, after which the coexistence manager tells the interfering station to transmit a signal to the first station indicating when it can transmit. 1. A method for media access control by a first device , comprising:determining whether there are interference signals being transmitted within a transmission spectrum by a second device, which is transmitting at a higher power level than the first device;sending a sharing request to a coexistence manager by way of a backhaul connection, wherein the coexistence manager is adapted to communicate the sharing request to the second device;receiving, from the second device, in response to the sharing request, a sharing authorization signal, and accessing media in response to the sharing authorization signal.2. The method of claim 1 , further comprising:processing interference signals from the second station in said first station to obtain identification information to send to the coexistence manager.3. The method of claim 1 , wherein the media is transmission spectrum in TV white space.4. The method of claim 1 , wherein the devices are connected to a WLAN associated with IEEE 802.11 standards.5. The method of claim 1 , wherein communication to the second device is through a backhaul connection.6. The method of claim 1 , wherein the second ...

CONTROL OF PACKET TRANSFER THROUGH A MULTIPATH SESSION COMPRISING A SINGLE CONGESTION WINDOW

A method for controlling a packet transfer through a multipath session is disclosed. The method comprises a number of n paths linking a first endpoint to a second endpoint, n being an integer greater or equal to 2, i being an integer and 1≦i≦n; each path Pi being defined by a couple of addresses of a communication interface of the first and second endpoint; the first endpoint being configured for sending the packet to the second endpoint through anyone of the paths; the second endpoint being configured for sending an acknowledgment message through anyone of the paths when the second endpoint received a packet. According to the invention, the method involves, at the first endpoint and at a time t, steps of: 18-. (canceled)9. A method for controlling a packet transfer through a multipath session comprising a number of n paths linking a first endpoint to a second endpoint , n being an integer greater or equal to 2 , i being an integer and 1≦i≦n , each path being defined by a couple of addresses of a communication interface of said first and second endpoint , the first endpoint being configured for sending the packet to said second endpoint through anyone of the paths , the second endpoint being configured for sending an acknowledgment message through anyone of the paths when said second endpoint received a packet , wherein it involves , at said first endpoint at a time t , steps ofassessing a load distribution, named L(i, t), through the path based on evaluations of a round-trip-time over said path for every i between 1 and n;evaluating a current available load distribution from said data load distribution, from an aggregated size of packets outstanding on said path for every i between 1 and N, and from the aggregated size of packets outstanding on said paths;selecting a path among the paths from said current available load distribution;sending said packet on said selected path such that the aggregated size of packets outstanding on said paths is lower than a ...

METHODS AND APPARATUS FOR A CLASSIFICATION-BASED LOOP FILTER

Methods and apparatus for a classification-based loop filter are provided. An encoding method encodes an input picture by transforming and quantizing a residue of the input picture to obtain quantized transform coefficients. Then inverse quantizing and inverse transforming the quantized transform coefficients to obtain a reconstructed version of the residue. A reconstructed version of the input picture is obtained by combining at least one reference picture with the reconstructed version of the residue. Pixels in the reconstructed version of the input picture are classified within a respective one of a plurality of categories responsive to local geometric characteristics. Pixels are selected for filtering responsive to a corresponding classification of the pixels with respect to the plurality of categories. 1. An apparatus , comprising:a video encoder for encoding an input picture by transforming and quantizing a residue of the input picture to obtain quantized transform coefficients, inverse quantizing and inverse transforming the quantized transform coefficients to obtain a reconstructed version of the residue, and combining at least one reference picture with the reconstructed version of the residue to obtain a reconstructed version of the input picture, and, wherein said video encoder includes a filter for classifying pixels in the reconstructed version of the input picture within a respective one of a plurality of categories responsive to local geometric characteristics and filtering at least one pixel selected responsive to a corresponding classification of the at least one pixel with respect to the plurality of categories.2. The apparatus of claim 1 , wherein filter coefficients are adaptive and are selected responsive to providing an improved performance of filtering within at least one of the plurality of categories.3. The apparatus of claim 2 , wherein the improved performance is provided by minimizing a distortion measure between the input picture and the ...

Methods and apparatus for reduced complexity template matching prediction for video encoding and decoding

There are provided methods and apparatus for reduced complexity template matching prediction for video encoding and decoding. The encoding method encodes at least an image block in a picture using template matching prediction, wherein the template matching prediction is selectably constrained using one or more constraining criterion that reduces a complexity of performing the template matching prediction.

Simplified searching for media services using a control device

A method and apparatus are disclosed for searching for a media content related to a selected media service. A selected media service, as selected by a user operable indicator, has related metadata that is used as the basis of a search query. Once the search query is formulated, the query is submitted to a search engine that returns search results of media content related to the selected media service. Media content then may be selected from the returned search results for rendering in a rendering environment.

APPARATUS FOR READING FROM AND/OR WRITING TO A NEAR-FIELD OPTICAL RECORDING MEDIUM

An apparatus for reading from or writing to a near-field optical recording medium capable of detecting tilt and spherical aberration is described. The apparatus comprises a light source for generating a reading light beam, a near-field lens, an aberration compensation element, and a diffractive optical element. The diffractive optical element is switchable between a far-field mode and a near-field mode and is adapted to generate a main light beam and four or more sub-beams from the reading light beam for determining at least a cover layer thickness error signal. For this purpose it has an outer region with a first grating period and an inner region having a diameter smaller than an effective numerical aperture of the near-field lens, which in the near-field mode has a second grating period and which has a switchable inner area having a diameter smaller than a far-field numerical aperture of the near-field lens, which in the far-field mode has the first grating period. The aberration compensation element is adapted to be adjusted based on the thickness error signal when the diffractive optical element is in the near-field mode. 1. An apparatus for reading from or writing to a near-field optical recording medium , with a light source for generating a reading light beam and with a near-field lens and an aberration compensation element , wherein the apparatus comprises a diffractive optical element that is switchable between a far-field mode and a near-field mode and is adapted to generate a main light beam and four or more sub-beams from the reading light beam for determining at least a cover layer thickness error signal , wherein the diffractive optical element has an outer region with a first grating period and an inner region having a diameter smaller than an effective numerical aperture of the near-field lens , which in the near-field mode has a second grating period and which has a switchable inner area having a diameter smaller than a far-field numerical aperture ...

METHOD AND APPARATUS FOR PARSING A NETWORK ABSTRACTION-LAYER FOR RELIABLE DATA COMMUNICATION

A method and apparatus are described including parsing an abstraction-layer header, assigning a priority to a packet to be transmitted, buffering the data to be transmitted, transmitting data retrieved from a buffer via a datagram protocol, receiving a request for retransmission of data, determining if the requested data is in the buffer and retransmitting the requested data via a protocol that provides end-to-end acknowledgement of data and error recovery. A network monitor of a transmitter is connected between a network interface and a retransmission decision maker for deciding which packets to retransmit, for example, based on the assigned priority and collected network statistics. A network monitor may also be provided at a receiver for collecting current network statistics and reporting them to transmitter. 1. A method comprising:parsing an abstraction-layer header of a digital data packet to obtain layer representation data; andassigning a priority to said digital data packet for said representation layer responsive to said parsing.2. The method according to whereinsaid obtaining layer representation data comprises determining spatial scalability (BYTE 1) comprising inter-layer coding dependency level.3. The method according to whereinsaid obtaining layer representation data comprises determining a quality level of grain scalability (BYTE 1).4. The method according to whereinsaid obtaining layer representation data comprises determining temporal level of said layer representation (BYTE 2).5. The method according to further comprising:representing said priority level in a payload type field (PT) of a real-time transport packet header.6. The method according to further comprising:representing said priority level in a type of service (TOS) field of an internet protocol packet header.7. The method according to further comprising:storing a digital data file for parsing.8. The method according to further comprising:receiving digital data for parsing at a de- ...

Automatic image discovery and recommendation for displayed television content

A method and system are provided that can automatically discover related images and recommend them. It uses images that occur on the same page or are taken by the same photographer for image discovery. The system can also use semantic relatedness for filtering images. Sentiment analysis can also be used for image ranking and photographer ranking.

3D DISPARITY MAPS

A particular implementation accesses a disparity value for a particular location in a picture, the disparity value indicating disparity with respect to a particular resolution. The particular implementation modifies the accessed disparity value based on multiple resolutions to produce a modified disparity value. Another implementation accesses a disparity value for a particular location in a picture, the picture having a particular resolution, and the disparity value indicating disparity with respect to another resolution that is different from the particular resolution and that is based on multiple resolutions. A further implementation modifies the accessed disparity value to produce a modified disparity value indicating disparity with respect to the particular resolution. 1. A method comprising:accessing a disparity value for a particular location in a picture, the disparity value indicating disparity with respect to a particular resolution; andmodifying the accessed disparity value based on multiple resolutions to produce a modified disparity value.2. The method of wherein modifying comprises scaling the accessed disparity value by a factor that is based on the multiple resolutions.3. The method of any of wherein the multiple resolutions correspond to resolutions supported by a standard display.4. The method of any of wherein modifying comprises scaling the accessed disparity value based on a common multiple of the multiple resolutions.5. The method of wherein the common multiple is the smallest common multiple of the multiple resolutions.6. The method of wherein the common multiple is 11 claim 4 ,520.7. The method of wherein the modified disparity value indicates disparity with respect to a non-standard resolution that is considerably larger than any resolution of a standard display.8. The method of wherein the non-standard resolution is different from each of the multiple resolutions.9. The method of wherein the picture has the particular resolution.10. The ...

Method and system of using floating window in three-dimensional (3d) presentation

A method and system for presenting stereoscopic images are described, in which a portion of at least one stereoscopic image of a stereoscopic pair is blocked while displaying the stereoscopic images. The blocked portion has a width at least equal to a magnitude of a minimum disparity associated with a region of the image near a vertical edge of the image or near a vertical edge of an area for displaying the image. By blocking the portion of the image during content display, one can avoid depth cue conflicts near the edge of the images or the display area.

Coexistence of multiple wireless networks

Described herein are a method and apparatus including calculating an aggregate peak total traffic demand for all overlapping access points in an interference range, comparing the aggregate peak total traffic demand to a threshold, rejecting a requested new quality of service traffic stream responsive to results of the comparison, calculating a peak total traffic demand for each overlapping access point in the interference range if the requested new quality of service traffic stream is admissible responsive to results of the comparison, comparing the peak total traffic demand for each overlapping access point in the interference range, if the requested new quality of service traffic stream is admissible, to the threshold and one of accepting the requested new quality of service traffic stream and rejecting the requested new quality of service traffic stream responsive to results of the second comparison.

METHOD AND DEVICE FOR OPTIMAL PLAYBACK POSITIONING IN DIGITAL CONTENT

A method and device for optimal playback positioning in video content are provided. The present disclosure relates to a mechanism of tagging scenes or significant points in content in a prioritized way, and defines a mechanism to utilize this tagging associated with the content to facilitate stopping or starting at appropriate points for playback, e.g., when pressing a scene skip button to jump forward or back to another scene, or when pressing Play after inputting a fast-forward or rewind instruction. The method and device provide for displaying video content at a playback speed for viewing, receiving a first navigation instruction to navigate the video content at a speed faster than the playback speed for viewing, receiving a second navigation instruction to displaying of the video content, and determining a playback position of the video content based on at least one tagged frame of the video content. 1. A method for determining an optimal playback position in video content , the video content including a plurality of frames , the method comprising:displaying video content at a playback speed for viewing;receiving a first navigation instruction to navigate the video content at a speed faster than the playback speed for viewing;receiving a second navigation instruction to resume displaying the video content at the playback speed for viewing; anddetermining a playback position of the video content, in response to the second navigation instruction, based on at least one tagged frame of the video content.2. The method as in claim 1 , where the at least one tagged frame of the video content is tagged before the displaying step.3. The method as in claim 1 , further comprising dynamically tagging at least one frame of the video content as frames are passed in the time period between receiving the first and second navigation instructions.4. The method as in claim 1 , wherein the determining step further comprises:determining a search start position within the frames ...

SYSTEM SOFTWARE PRODUCTIZATION FRAMEWORK

A unified framework is established based on a domain-specific system description model representative of physical network system topology, network system device capability and/or logical network system structure. The framework can be employed to streamline a network system configuration process and/or a software system deployment process and the like. Some instances can also be utilized in establishing a unified framework in a broadcast equipment environment to augment network system based technologies. Additionally, network devices having multiple network interfaces that are dedicated to specific network usages can be automatically configured. A method in accordance with an aspect of the present principles includes generating a site model with a plurality of groups of device model network interfaces that can represent dedicate networks. The device model interfaces are grouped according to usage and network medium type and are logically associated with pre-defined IP addresses. The site model is applied to the network devices to logically associate them into dedicated networks by automatically assigning the pre-defined IP addresses to the network interfaces of the devices. 1. A method of configuring networked broadcast service devices , comprising the steps of:receiving identification information at a control unit from at least one self identifying broadcast service device, the broadcast service device automatically sends identification information including its usage capabilities when connected to a network;storing the identification information of the at least one broadcast service device in a configuration repository associated with the control unit, the configuration repository includes at least one device model, the device model including device broadcast service usage, software information and network interface information; andconfiguring the at least one broadcast service device with the control unit, the configuration based on the device model.2. (canceled)3 ...

Method for controlling an image display device to allow the same perception of colours over a large variety of observers

For each colour, the method comprises the following steps: —converting the first set of colour coordinates (R 0 , G 0 , B 0 ) R representing this colour into a first set of visual tristimulus values (X 0 , Y 0 , Z 0 ) representing said colour as perceived by a first observer when displayed using a first set of primaries, —converting said first set of visual tristimulus values (X 0 , Y 0 , Z 0 ) into a second set of visual tristimulus values (X i , Y i , Z i ) representing the same colour as perceived by a second observer, —converting said second set of visual tristimulus values (X i , Y i , Z i ) into a second set of colour coordinates (R i , G i , B i ) C representing said colour as perceived by said second observer when displayed using a second set of primaries.

METHOD AND APPARATUS FOR REDUCING FRAME REPETITION IN STEREOSCOPIC 3D IMAGING

The present invention is directed towards enhancing the reproduction of three-dimensional dynamic scenes on digital light processing (DLP) and (liquid crystal display) LCD projectors and displays by adding optimal amount of motion blur to stimulate the covered eye to continue perceiving scene picture changes. Too much blur would bring smearing, but a lack of blur induces motion breaking. 1. A method for reducing frame repetition in stereoscopic 3D imaging , the method comprising the steps of:deriving a left eye motion blur for an input frame;deriving a right eye motion blur for the same input frame;deriving a coincidental motion blur for the input frame; andadding the coincidental motion blur to both the LE and RE images.2. The method of claim 1 , wherein said the step of deriving coincidental motion blur further comprises:deriving a total LE motion blur from the derived LE motion blur; andderiving a total RE motion blur from the derived RE motion blur.3. The method of claim 1 , further comprising:applying a non-linear motion blur to the LE and RE images with the Cmb added;determining whether the input frame is the last frame; andending the method when it is determined the input frame is the last frame.4. The method of claim 3 , further comprising repeating all of said steps when it is determined that the input frame is not the last frame.5. The method of claim 1 , wherein said deriving a left eye motion blur further comprises collecting object trails in a left-eye sequence and which appear in a left camera during capture.6. The method of claim 1 , wherein said deriving a right eye motion blur further comprises collecting object trails in a right-eye frame sequence and which appear in a right camera during capture.7. The method of claim 2 , wherein said deriving a total LE motion blur further comprises;adding object trails in LE frame sequences visible by both a left and a right camera during capture and the LE motion blur specific for the left eye.8. The method of ...

Method of processing an image

The invention relates to a method for processing an image divided into blocks of pixels comprising the steps of: detecting, for each block, a largest sub-block whose pixels have an equal luminance value; identifying, for each block, if the detected largest sub-block is or is not a natural texture; calculating, for each block, a weighted luminance difference between the detected largest sub-block and neighboring pixels; determining, for each block, a block blockiness level on the basis of the number of pixels within the detected largest sub-block, of said identification step and of said weighted luminance difference; and processing the image on the basis of the block blockiness levels.

Comfort Noise and Film Grain Processing for 3 Dimensional Video

Noise, either in the form of comfort noise or film grain, is added to a three dimensional image in accordance with image depth information to reduce human sensitivity to coding artifacts, thereby improving subjective image quality. 1. A method for adding noise to a three-dimensional image , comprising the step of adding noise to different areas of the image in accordance with image depth.2. The method according to wherein the noise comprises comfort noise..3. The method according to wherein the noise comprises film grain.4. The method according to wherein the three dimensional image has first and second views and wherein the noise is added to the first and second views in accordance with image depth5. The method according to wherein the step of adding noise further comprises the steps of:calculating noise for a first view in the image;adding the calculated noise to the first view picture;synthesizing noise for a second view picture from the noise calculated for the first view picture in accordance with image depth;adding the synthesized noise to the second view picture.6. The method according to wherein the step of synthesizing noise for a second view picture further includes the steps of:identifying areas in the synthesized noise in which values are missing; andfilling the identified areas with noise.7. A method for adding film grain to a three dimensional image having first and second view picture claim 5 , comprising the steps of:extracting film grain from the first view picture;removing grain from the second view picture;synthesizing film grain for the second view picture from the extracted film grain for the first view picture based on image depth; andadding the synthesized film grain to the second view picture.8. The method according to wherein the step of synthesizing film grain for the second view picture further includes the steps of:identifying areas in the synthesized film in which values are missing; andfilling the identified areas with film grain.9. A ...

MEDIA REGISTRATION AND AUTHORIZATION ON A MEDIA PLAYER

The disclosed methods and systems provide for the registry and authorization of media on a media player. The method involves maintaining a registry of registered media. Media to be played by the media player is compared to the maintained registry of registered media. If media is registered, authorization it then required to play the registered media. 1. In a media player , a method comprising:maintaining a registry of registered mediacomparing media to the maintained registry of registered mediarequiring authorization to play the media based on the registration of the media in the maintained registry.2. The method of claim 1 , further comprising the steps of:receiving authorization for a registered media; andplaying the registered media responsive to said authorization.3. The method of claim 1 , wherein the step of maintaining a registry of registered media comprises:receiving a selection of a media to be registered; andregistering the selected media.4. The method of claim 3 , wherein the step of receiving a selection of a media to be registered comprises receiving claim 3 , from a user claim 3 , a selection of a media to be registered.5. The method of claim 4 , wherein the received selection of a media to be registered is received from a user via an on-screen menu.6. The method of claim 5 , the step of receiving a selection of media to be registered further comprises the steps of:providing and on-screen prompt for a selection of media, andreceiving a selection of media provided by a user via an on-screen menu.7. The method of claim 3 , wherein the selection of a media to be registered is received via a network connection of the media player.8. The method of claims 3 , wherein the step of receiving a selection of a media to be registered comprises receiving a list of media to be registered.9. The method of claim 3 , wherein the step of registering the received selected media comprises registering the received selected media as restricted.10. The method of claim 3 , ...

Method and system for providing recommendations in a social network

A Bayesian Inference based recommendation system in a social network is provided. The method and system utilizes content ratings from a querying initiator's friends and their friends depending on the time to live (TTL) and other factors. Receiving users send to the querying initiator recommendation ratings from their friends and a conditional probability of distribution of the recommendation ratings given by the recommender's rooted at the friend. Once this information has been obtained from the friend/hopped friend network, the querying initiator's recommendation query engine constructs the QI's own rating response using the Bayesian Inference Network.

METHOD AND APPARATUS FOR TRANSMITTING DATA

An implementation exits a power saving mode for fixed and periodic active periods of time to receive a separate burst transmission from a first stream during each of the corresponding active periods of time. The first stream is received at a first-stream burst data rate. The first stream includes data configured to be displayed at a first playback rate that is substantially less than the first-stream burst data rate. During the active periods of time, data is received from a second stream at a second-stream rate. The second stream includes data configured to be displayed at a second playback rate that is substantially the same as the second-stream rate. After receiving each of the burst transmissions from the first stream during the active periods of time, the power saving mode is entered for corresponding fixed and periodic power-saving periods of time while waiting for another burst from the first stream. 1. A method for receiving data comprising:exiting a power saving mode at least two times for corresponding fixed and periodic active periods of time at a receiver in order to receive a separate burst transmission from a first stream during each of the corresponding active periods of time, the active periods of time having a first common length of time determined prior to a first of the active periods of time;receiving, during the active periods of time, the burst transmissions from the first stream at the receiver, the burst transmissions being received over a continuous-mode transmission system, wherein the first stream is received by the receiver at a first-stream burst data rate, and the first stream includes data configured to be displayed at a first playback rate that is substantially less than the first-stream burst data rate;receiving, during the active periods of time, data from a second stream at the receiver, the data from the second stream being received over the continuous-mode transmission system, wherein the second stream is received by the receiver ...

Method and apparatus for assessing quality of video stream

Objective video quality assessment models at media-layer or at packet-layer are known for estimating audio/video quality of experience. Existing models are not able to provide stable performance. A method for enabling quality assessment of a stream of frames of video data comprises receiving a sequence of packets, generating a set of parameters and inserting said generated set of parameters as side information into said stream of frames, wherein at least one parameter refers to a video slice level. A method for assessing the quality of a stream of frames of video data comprises receiving a sequence of packets, extracting a set of parameters from said sequence of packets and generating an estimated mean opinion score, wherein the video data comprise a slice level and wherein the extracted set of parameters comprises at least one parameter that refers to a video slice level.

METHODS AND APPARATUS FOR ADAPTIVE INTERPOLATIVE INTRA BLOCK ENCODING AND DECODING

Methods and apparatus are provided for adaptive interpolative intra block encoding and decoding. An apparatus includes a video encoder for encoding at least an intra block in a picture by dividing the intra block into at least a first partition and a second partition, and generating predictions of pixels in the second partition by adaptively interpolating reconstructed pixels from the first partition. 1. An apparatus , comprising:a video encoder for encoding at least an intra block in a picture by dividing the intra block into at least a first partition and a second partition, and generating predictions of pixels in the second partition by adaptively interpolating reconstructed pixels from the first partition.2. The apparatus of claim 1 , wherein a partition method used to partition the intra block is based on an intra prediction mode.3. The apparatus of claim 1 , wherein picture data for the intra block is encoded into a resultant bitstream claim 1 , and a partition method used to partition the intra block is explicitly signaled in the resultant bitstream.4. The apparatus of claim 1 , wherein an interpolation direction used to adaptively interpolate the reconstructed pixels from the first partition is determined based on an intra prediction mode.5. The apparatus of claim 1 , wherein an interpolation direction used to adaptively interpolate the reconstructed pixels from the first partition is determined based on a partition method used to partition the intra block.6. The apparatus of claim 1 , wherein picture data for the intra block is encoded into a resultant bitstream claim 1 , and an interpolation direction used to adaptively interpolate the reconstructed pixels from the first partition is explicitly signaled in the resultant bitstream.7. The apparatus of claim 1 , wherein picture data for the intra block is encoded into a resultant bitstream claim 1 , and the apparatus further comprises at least one adaptive interpolation filter for adaptively interpolating the ...

METHOD AND APPARATUS OF PUSH & PULL GESTURE RECOGNITION IN 3D SYSTEM

The present invention provides method and apparatus of PUSH & PULL gesture recognition in 3D system. The method comprising determining whether the gesture is PUSH or PULL as a function of distances from the object performing the gesture to the cameras and the characteristics of moving traces of the object in the image planes of the two cameras. 1. A method of gesture recognition by two cameras , comprisingdetermining whether an object is close to or away from a connection line of two cameras as a function of the depth variations of images of the object captured by the two cameras and the characteristics of moving traces of the images of the object in the image planes of the two cameras.2. The method according to claim 1 , wherein the characteristic of a moving trace of the image. of the object in an image plane of a camera comprise a movement direction in of one of two axes defining the image plane of the camera.3. The method according to claim 2 , wherein the object is determined to be close to the connection line of two cameras by a decreasing of the depth variations both being larger than a predetermined threshold the movement direction of the moving trace of the object in an axis of one camera being different from that in the axis of another camera with the two cameras defined by the same coordinates system.4. The method according to claim 3 , wherein the moving traces in the two cameras move toward each other in said axis.5. The method according to claim 2 , wherein a the object is determined to be away from the connection line of two cameras by an increasing of the depth variations both being larger than a predetermined threshold and the movement direction of the moving trace of the object in an axis one camera being different from that in the same axis of another camera with the two cameras defined by the same coordinates system.6. The method according to claim 5 , wherein the moving traces in the two cameras move away from each other in said axis.7. The ...

Distributed video transcode system with adaptive file processing

To obtain greater transcoding efficiency, a node administrator ( 160 ) distributes digital files among transcoding nodes ( 120, 140 and 190 ) based on a comparison of a transcoding profile for each digital file and the transcoding histories of the transcoding nodes. In this way, the node administrator ( 160 ) will select the transcoding node best able to undertake transcoding, taking into account the characteristics of the file to be transcoded.

METHODS AND APPARATUS FOR CONSTRAINED TRANSFORMS FOR VIDEO CODING AND DECODING HAVING TRANSFORM SELECTION

Methods and apparatus are provided for constrained transforms for video coding and decoding having transform selection. An apparatus includes a video encoder for encoding at least a block in a picture by selecting a particular transform from at least a first transform and a second transform that is different than the first transform, and applying the particular transform to a residue of the block. Transform coefficients for the second transform are selected responsive to a deblocking filter that is present in the video encoder. 1. An apparatus , comprising:a video encoder for encoding at least a block in a picture by selecting a particular transform from at least a first transform and a second transform that is different than the first transform, and applying the particular transform to a residue of the block, wherein transform coefficients for the second transform are selected responsive to a deblocking filter that is present in the video encoder.2. The apparatus of claim 1 , wherein the transform coefficients correspond to a first basis vector of the second transform.3. The apparatus of claim 2 , wherein a smoothness constraint is imposed on the first basis vector.4. The apparatus of claim 2 , wherein a variation of the transform coefficients corresponding to the first basis vector is constrained below a specified threshold value.5. The apparatus of claim 2 , wherein an energy of a Fourier transform below a given frequency is above a specified threshold claim 2 , the Fourier transform corresponding to the second transform.6. The apparatus of claim 2 , wherein the transform coefficients corresponding to the first vector basis are constant.7. The apparatus of claim 1 , wherein the first transform is a Discrete Cosine Transform.8. In a video encoder claim 1 , a method claim 1 , comprising:encoding at least a block in a picture by selecting a particular transform from at least a first transform and a second transform that is different than the first transform, and ...

SELECTIVE DISPLAY OF A TAGGED LIST OF BROADCAST PROGRAMS AVAILABLE THROUGH A VIDEO RECORDER OR SET TOP BOX STB

The disclosed methods and systems provide for selectively including programs in listings of programs available though a digital video recorder (DVR). The method involves receiving a selection of a program available through the DVR. The received selected program is then tagged. The tagged program can then be selectively included in a listing of programs available through the DVR. This can involve omitting selected programs or only including selected programs from the display of the list of available programs. 1. In a digital video recorder (DVR) , a method comprising:receiving a selection of a program available through the DVR;tagging the received selected program; andselectively including the tagged program in a listing of programs available through the DVR.2. The method of claim 1 , comprising the step of selecting a program that has been previously recorded on the DVR.3. The method of claim 1 , comprising the step of selecting a program that is scheduled to be recorded by the DVR.4. The method of claim 1 , comprising the step of selecting a program from a listing of programs available through the DVR.5. The method of claim 1 , wherein tagging the received selected program comprises the step of tagging the received selected program as restricted.6. The method of claim 1 , wherein tagging the received selected program comprises the step of tagging the received selected program as preferred.7. The method of claims 1 , wherein selectively including the tagged program in a listing of programs available through the DVR comprises selectively including the tagged program in a listing of programs available through the DVR in response to an authorization.8. The method claim 7 , comprising the step of generating an authorization responsive to a password received from a user.9. The method of claim 7 , comprising the step of generating an authorization responsive to the device displaying the listing of programs available through the DVR.10. The method of claim 7 , comprising ...

DIGITAL CINEMA ANTI-PIRACY METHOD AND APPARATUS FOR LIQUID CRYSTAL PROJECTION SYSTEMS

Described herein are a method and apparatus including receiving digital video content, receiving an indication of an object of an image of the digital video content, receiving an indication of a grouping of the object in a frame sequence per second, swapping forward in time the grouping of the object with a time-following object to generate a first non-sequential frame of digital video content, performing an object assignment for the forward time swap, swapping backward in time the grouping of the object with a time-following object to generate a second non-sequential frame of digital video content and performing an object assignment for the backward time swap. The swapping backward in time and the swapping forward in time cause flicker in a recording of the digital video content. 1. A method , said method comprising:receiving digital video content;receiving an indication of an object of an image of said digital video content;receiving an indication of a grouping of said object in a frame sequence, wherein said grouping of said object is one of lines or pixels or a combination of lines and pixels, and wherein said grouping of said object defines a horizontal and vertical position of said object within said image;intra-frame swapping said grouping, of said object with a grouping of a neighboring object wherein said neighboring object is defined by a grouping of an object and wherein said intra-frame swapping occurs in a forward direction with respect to time;performing an object assignment for said forward time swap;intra-frame swapping said grouping of said object with a gouging of a neighboring object, wherein said neighboring object is a grouping of an object and wherein said intra-frame swapping occurs in a backward direction with respect to time; andperforming an object assignment for said backward time swap, wherein said forward time swap of objects occurs for half of a ore-determined timeinterval and said backward time swap occurs for, half of said pre- ...

APPARATUS COMPRISING A PICKUP PROVIDING MULTIPLE BEAMS

The apparatus includes a pickup for reading data from a super-resolution optical disc, the pickup comprising a laser for generating a main beam, a first and a second satellite beam, the two satellite beams each having a radial offset with regard to the main beam, a third satellite beam following the first satellite beam, having the same radial offset as the first satellite beam, and a fourth satellite beam following the second satellite beam, having the same radial offset as the second satellite beam, for providing a crosstalk correction of the HF data signal. The track pitch between adjacent tracks of the optical disc is particularly below the diffraction limit of the pickup, and the light intensity of each of the first and second satellite beams and of the main beam is sufficient to provide a super-resolution effect on the optical disc and the light intensity of each of the third and fourth satellite beams is not sufficient to provide the super-resolution effect. The track pitch between adjacent tracks of the optical disc is advantageously below the diffraction limit of the pickup. 1. Apparatus comprising a pickup for reading data from a super-resolution optical disc ,the pickup comprising a laser for generating a main beam and a first and a second satellite beam, the two satellite beams having each a radial offset with regard to the main beam,the two satellite beams and the main beam being focused by an objective lens onto the optical disc and the reflected light from the optical disc being guided onto two detector units for providing a HF data signal, wherein the pickup generatesa third satellite beam following the first satellite beam, having the same radial offset as the first satellite beam, anda fourth satellite beam following the second satellite beam, having the same radial offset as the second satellite beam, for providing a crosstalk correction of the HF data signal.2. The apparatus of claim 1 , wherein the track pitch between adjacent tracks of the ...