Koninklijke KPN (KKPNY) USPTO patentsUtility grant

A method and processor system are provided for adapting an acoustic rendering of an audio source to a visual rendering of an image-based object.

A method for adaptive streaming of video is described, wherein the method comprises: transmitting first metadata to a client apparatus, the first metadata defining a first adaptation set, an adaptation set defining one or more sets of segment identifiers, each set of segment identifiers defining a plurality of linearly playable media segments of a predetermined resolution, each media segment in a set of media segments having an identical playback duration, the first metadata enabling a client apparatus to request media segments and sequentially playout the media segments; receiving navigation information from the client apparatus, the navigation information defining at least a first region, in the video frames of the first adaptation set; selecting second metadata defining a second adaptation set on the basis of spatial playback information and a spatial distance or a spatial overlap between the first region and a second region in video frames of the first adaptation set, wherein the spatial playback information signals the server apparatus that the second region is linked to media segments of the second adaptation set; and, transmitting the second metadata or information for retrieving the second metadata to the client apparatus, the second metadata enabling the client apparatus to playback media segments of the second adaptation set after the playback of media segments of the first adaptation set.

The present disclosure may be implemented in the form of a method or corresponding apparatus for sending signaling messages through an IPX proxy from a first network element.

A method of encoding video data into a bitstream comprising: determining from the plurality of video blocks of a video frame of a first resolution a current block and one or more reference blocks including reference samples for predicting original samples of the current block; determining predicted samples of the current block based on a downsampling scheme, the determining comprising computing samples of a first low-resolution block of a second resolution that is lower than the first resolution, and predicting samples of one or more second low-resolution blocks of the second resolution based on the samples of the first low resolution block, the samples of the first low-resolution block and the one or more second low-resolution blocks defining predicted samples of the current Block; and, determining residual samples of a residual block based on original samples of the current block and the predicted samples of the current block; transforming the samples of the residual block into a bitstream; and, embedding metadata associated with the current block in the bitstream for signalling a decoder apparatus that the predicted samples of the current block are based on the downsampling scheme.

The invention is concerned with insertion of secondary content in a time slot of primary content.

A method of determining a bitstream is described, the method including: determining a motion vector (MV) of a current block of a current video frame of a sequence of video frames comprising video data captured by a camera, the MV defining an offset of the current block relative to a prediction block, wherein part of the offset is caused by global motion in the video data if the camera is moving relative to a scene; determining motion vector predictor MW candidates for predicting the MV, the MW candidates being determined based on MVs of already encoded blocks; determining a motion compensation vector MCV for MW candidates, determining global motion compensated MW candidates based on a difference between a MW candidate and an associated MCV; selecting a compensated MW; and, determining a motion vector difference MVD based on the compensated MW and the MW; and, using entropy coding to code, the MVD, an indication of the selected compensated MW; and, conversion information for converting a MVP into a compensated MW, into a bitstream.

An enhancement device (10, 116) for enhancing service requests (120) and a method of allocating network resources to a network service in a communication network is provided.

A method of encoding a video frame into a bitstream is described including: applying a downsampling scheme to an original video frame of a first resolution for determining a first low-resolution, LR, original frame and one or more second original LR frames, the first LR original frame and the one or more second LR original frames being of a second resolution that is lower than the first resolution; partitioning the first LR original frame into first original blocks and partitioning the one or more second LR frames into second original blocks; using a prediction method for determining first predicted blocks, the first predicted blocks defining predictions for the first original blocks of the first LR original frame; determining first residual blocks based on the first predicted blocks and the first original blocks and, subsequently, determining first reconstructed blocks based on the first residual blocks and the first predicted blocks; determining second predicted blocks based on the first reconstructed blocks, the second predicted blocks defining predictions for the second original blocks of the one or more second LR original frames; determining second residual blocks based on the second predicted blocks and the second original blocks; and, transforming the first residual blocks and second residual blocks into a bitstream, the bitstream including metadata for signalling a decoder apparatus that during the encoding a downsampling scheme was used for downsampling the video frame.

A method of scheduling transmissions to client devices comprises receiving feedback (f1a-f3d) about a plurality of candidate downlink frequency resources (91-94) from a plurality of client devices and/or measuring channel qualities of a plurality of candidate uplink frequency resources (95-98) from receptions of transmissions, e.g. of the feedback, by the plurality of client devices.

Some embodiments are directed to a blockchain management device (100) configured to distribute a new block of a secondary blockchain to at least one further blockchain management device that manages the secondary blockchain, and to distribute a transaction to at least one blockchain management device that manages a primary blockchain, said transaction comprising an identification of a set of transactions in the new block.

One aspect of the disclosure relates to a method for providing a service to a user equipment connected to a first operator network.

A method of determining a group of user devices suitable for contributing user content to an interactive media broadcast may comprise: —transmitting a set of requirements to a first plurality of user devices (13), each user device having a set of capabilities, the set of requirements relating to using at least part of the user content in the interactive media broadcast, —transmitting an invitation to a second plurality of user devices (13), the invitation being configured to cause a user device to produce a conditional response if the set of capabilities of the user device matches the set of requirements, and —identifying a group of user devices from which a conditional response was received.

The invention relates to a system comprising a mobile device (1), a device (13b) for transmitting information, a device (15) hosting a device registry (14) and a wireless device (3a).

A system for managing a data stream between first and second networks is described in which a node entity transmits a data stream addressed to a destination device in the second network and a gateway entity receives the data stream from the first network.

A device (1) is configured to derive a first security key based on information relating to a first node (17), to request use of or to use a further device (9) as a relay to the mobile communication network and to determine whether the further device is connected to the first node and/or receive a message when another device, e.g. the first node, has determined that the further device is not connected to the first node.

A method is described for processing an omnidirectional video by a client device, said omnidirectional video being associated with a 3D coordinate system for determining a spatial position of video data of said omnidirectional video on a curved surface, preferably a sphere, said method comprising: receiving a manifest file, the manifest file comprising a plurality of tile stream identifiers for identifying a plurality of tile streams, the tile streams comprising video frames having image views, whereby the image views of video frames of different tile streams cover different regions of a 2D projection of the omnidirectional video, a region defining a tile; selecting on the basis of spatial relation information in the manifest file and on the basis of a viewpoint of a user of the client device a first tile streams associated with a first resolution and a first tile position and a second tile stream associated with a second resolution and a second tile position, the second resolution being lower than the first resolution, wherein the spatial relation information defines for each tile a tile position and wherein the viewpoint defines a viewing direction of the user, tile position and the viewpoint being defined on the basis of coordinates of the 3D coordinate system.

A system and method are provided for managing a concurrent streaming of a first media stream (031) and a second media stream (032).

The invention relates to a method for controlling access for a user equipment to at least one local device via an intermediary system that is configured to connect to a local network and to a public network.