Abstract: In some implementations a method includes receiving a first request for a first ultrasonic audio signature from a first computing device. The method also includes transmitting first data indicative of the first ultrasonic audio signature to the first computing device. The method further includes receiving audio data from a second computing device. The method further includes determining that the audio data is indicative of the first ultrasonic audio signature. The method further includes transmitting, to one or more of the first computing device or the second computing device, a message indicating that the first computing device is in proximity to the second computing device.

Abstract: In some implementations a method includes receiving a first request for a first ultrasonic audio signature from a first computing device. The method also includes transmitting first data indicative of the first ultrasonic audio signature to the first computing device. The method further includes receiving audio data from a second computing device. The method further includes determining that the audio data is indicative of the first ultrasonic audio signature. The method further includes transmitting, to one or more of the first computing device or the second computing device, a message indicating that the first computing device is in proximity to the second computing device.

Abstract: In one embodiment, a method implemented on a computing device includes: analyzing textual source content from a currently presented webpage on the computing device, based on the analyzing, determining at least one content theme contextually related to the webpage, receiving details of at least one currently scheduled television program on the computing device, where the at least one currently scheduled television program is matched to the at least one content theme, and rendering the currently presented webpage to include at least an indication of the currently scheduled television program in accordance with the details.

Abstract: A method and apparatus for dynamically constructing a broadcast multiplex are described. The method includes: receiving metadata associated with a first plurality of events on a plurality of source channels, the metadata including, at least, scheduling metadata; determining, on the basis of a rule-set applied to the metadata, whether events of the first plurality of events are to be included in the multiplex, thereby producing a second plurality of events to be included in the multiplex; for each one event of the second plurality of events, assigning a multiplex priority to the one event, the multiplex priority being a priority the one event is to be assigned in the multiplex in case the one event contends for space in the multiplex with a second event of the second plurality of events; copying events from the second plurality of events into the multiplex in dependence on the multiplex priorities of events in the second plurality of events; and broadcasting the multiplex.

Abstract: A method of providing information about video content to a client is disclosed. The method includes: receiving a request from a client requesting information about video content, the request including an internet protocol address of the client; establishing (a) a geographic location of the client from the internet protocol address; and (b) a time of the request; identifying one or more content providers available in the geographic location; in dependence on the one or more content providers and the time, retrieving information about the video content from a database; and providing the information to the client. Related apparatus and methods are also disclosed.

Abstract: Delivering an audio video asset in a way that makes best use of different delivery mechanisms available.

Abstract: The present invention relates to an apparatus, method for adjusting depth characteristics of a three-dimensional image for correcting for errors in perceived depth when scaling the three-dimensional image, the method comprising: receiving three-dimensional image information comprising a stereoscopic image including a first image and a second image, the stereoscopic image having depth characteristics associated with an offset of the first and second images; determining a scaling factor indicative of a scaling for converting the stereoscopic image from an original target size to a new size; determining at least one shifting factor for varying the depth characteristics, the at least one shifting factor indicative of a relative shift to be applied between the first and the second images, wherein the at least one shifting factor is determined in accordance with the scaling factor and at least one depth parameter derived from the depth characteristics; and performing the relative shift between the first and second

Abstract: A method of presenting content to a viewer is described. The method includes: receiving a schedule of content at a client operable by the viewer, the schedule of content including a directed graph, the directed graph including a plurality of nodes, wherein each node in the plurality of nodes is connected to one or more other nodes in the plurality of nodes by one or more paths, wherein each path represents content presentable to the viewer; traversing the directed graph by following a route between nodes and along paths of the directed graph, wherein at each node the client determines a path to follow according to state information accessible by the client; and presenting content to the viewer as each path is followed.

Abstract: A method of operating a client device within a viewing environment is described. The method includes: receiving content at a client device, presenting the content to a viewer by rendering the content as rendered content on a display surface in operable communication with the client device; receiving engagement data at the client device, the engagement data indicating a level of engagement with the content of at least one user who is viewing the rendered content; and adapting presentation of the content in dependence on the engagement data by changing how the content is rendered on the display surface. Related systems, apparatus, and methods are also described.

Abstract: A method of controlling revelation of one or more metadata items is disclosed. Each of the one or more metadata items is associated with one or more parts of an audio-visual data stream (101). The method comprises: for a given one or more parts (103,105) of the audio-visual data stream (101), revealing one or more metadata items (113,115,117) associated with the given one or more parts (103,105) of the audio-visual data stream (101) only after the given one or more parts (103,105) of the audio-visual data stream (101) have been accessed.

Abstract: The present invention relates to an apparatus, method for adjusting depth characteristics of a three-dimensional image for correcting for errors in perceived depth when scaling the three-dimensional image, the method comprising: receiving three-dimensional image information comprising a stereoscopic image including a first image and a second image, the stereoscopic image having depth characteristics associated with an offset of the first and second images; determining a scaling factor indicative of a scaling for converting the stereoscopic image from an original target size to a new size; determining at least one shifting factor for varying the depth characteristics, the at least one shifting factor indicative of a relative shift to be applied between the first and the second images, wherein the at least one shifting factor is determined in accordance with the scaling factor and at least one depth parameter derived from the depth characteristics; and performing the relative shift between the first and second

Abstract: Delivering an audio video asset in a way that makes best use of different delivery mechanisms available.

Abstract: A method of delivering an audio video asset is described.

Abstract: The present invention relates to an apparatus, method for adjusting depth characteristics of a three-dimensional image for correcting for errors in perceived depth when scaling the three-dimensional image, the method comprising: receiving three-dimensional image information comprising a stereoscopic image including a first image and a second image, the stereoscopic image having depth characteristics associated with an offset of the first and second images; determining a scaling factor indicative of a scaling for converting the stereoscopic image from an original target size to a new size; determining at least one shifting factor for varying the depth characteristics, the at least one shifting factor indicative of a relative shift to be applied between the first and the second images, wherein the at least one shifting factor is determined in accordance with the scaling factor and at least one depth parameter derived from the depth characteristics; and performing the relative shift between the first and second

Abstract: A method and apparatus for dynamically constructing a broadcast multiplex are described. The method includes: receiving metadata associated with a first plurality of events on a plurality of source channels, the metadata including, at least, scheduling metadata; determining, on the basis of a rule-set applied to the metadata, whether events of the first plurality of events are to be included in the multiplex, thereby producing a second plurality of events to be included in the multiplex; for each one event of the second plurality of events, assigning a multiplex priority to the one event, the multiplex priority being a priority the one event is to be assigned in the multiplex in case the one event contends for space in the multiplex with a second event of the second plurality of events; copying events from the second plurality of events into the multiplex in dependence on the multiplex priorities of events in the second plurality of events; and broadcasting the multiplex.

Abstract: A method of generating a recommended depth value for use in displaying a graphics item over a three dimensional video is described. The method includes at a headend: receiving a three dimensional video including video frames; analyzing a sequence of said video frames in turn to produce a sequence of depth maps, each depth map in the sequence of depth maps being associated with timing data relating that depth map to a corresponding video frame in the sequence of video frames, each depth map including depth values, each depth value representing a depth of a pixel location in its corresponding video frame; selecting a region of depth maps in the sequence of depth maps; analyzing said region of the depth maps in the sequence of depth maps to identify a furthest forward depth value for said region in the sequence of depth maps; and transmitting the furthest forward depth value as the recommended depth value for the region to a display device and region information describing the region.

Abstract: A method of delivering an audio video asset is described.

Abstract: A method of providing information about video content to a client is disclosed. The method includes: receiving a request from a client requesting information about video content, the request including an internet protocol address of the client; establishing (a) a geographic location of the client from the internet protocol address; and (b) a time of the request; identifying one or more content providers available in the geographic location; in dependence on the one or more content providers and the time, retrieving information about the video content from a database; and providing the information to the client. Related apparatus and methods are also disclosed.

Abstract: A method of presenting content to a viewer is described. The method includes: receiving a schedule of content at a client operable by the viewer, the schedule of content including a directed graph, the directed graph including a plurality of nodes, wherein each node in the plurality of nodes is connected to one or more other nodes in the plurality of nodes by one or more paths, wherein each path represents content presentable to the viewer; traversing the directed graph by following a route between nodes and along paths of the directed graph, wherein at each node the client determines a path to follow according to state information accessible by the client; and presenting content to the viewer as each path is followed.

Abstract: A method of controlling revelation of one or more metadata items is disclosed. Each of the one or more metadata items is associated with one or more parts of an audio-visual data stream (101). The method comprises: for a given one or more parts (103, 105) of the audio-visual data stream (101), revealing one or more metadata items (113, 115, 117) associated with the given one or more parts (103, 105) of the audio-visual data stream (101) only after the given one or more parts (103, 105) of the audio-visual data stream (101) have been accessed.