GB2467743A - Video server and method of distributing media over a network - Google Patents
Video server and method of distributing media over a network Download PDFInfo
- Publication number
- GB2467743A GB2467743A GB0902256A GB0902256A GB2467743A GB 2467743 A GB2467743 A GB 2467743A GB 0902256 A GB0902256 A GB 0902256A GB 0902256 A GB0902256 A GB 0902256A GB 2467743 A GB2467743 A GB 2467743A
- Authority
- GB
- United Kingdom
- Prior art keywords
- peer
- video
- signal
- network
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 17
- 239000002131 composite material Substances 0.000 claims description 51
- 238000004590 computer program Methods 0.000 claims 2
- 230000005236 sound signal Effects 0.000 abstract 1
- 239000012634 fragment Substances 0.000 description 7
- 230000015654 memory Effects 0.000 description 4
- 230000006399 behavior Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
-
- H04L29/0651—
-
- H04L29/08306—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/70—Media network packetisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Systems exist that allow video media such as movies to be distributed on a peer to peer network, but peers may not all require the same format mix of video, audio, language and subtitles. A video server connects to a peer-to-peer network and provides the network a signal having at least a separate video signal component and a separate audio signal component, these components being divided into a plurality of parts suitable for propagation over the network. A peer A (Fig. 4a) may request standard definition video, surround sound and subtitles, which are delivered as an interleaved stream of packets divided into parts A1, A2. Similarly peer B may require high definition video and stereo audio, which is delivered in as parts B1, B2. Another peer may later acquire the same programme by obtaining video from peer A and audio from peer B. Packet sizes and quantities will vary depending amount of information contained.
Description
VIDEO SERVER AND METHOD OF PROVIDING
A COMPOSITE VIDEO SIGNAL
The present invention relates to a method of providing, on a peer-to-peer network, a composite video signal and it relates also to a video server, a peer-to-peer terminal device and a peer-to-peer terminal network operating as part of that method.
It is well known to distribute composite video files, such as movies, around a peer-to-peer network.
Systems and methods such as "bittorrent" exist for allowing peers on the peer-to-peer network to obtain parts of a file from different peers on the network so as to acquire the complete file. In this respect, arrangements exist for splitting content, such as a composite video signal or file, into parts or fragments which may be of fixed size and which may be distributed amongst the peer-to-peer clients.
The present invention is based at least partly on a recognition that not all peers or clients will require content in the same format or indeed will require all of the same content for a given programme/movie. For example, content with high definition video and surround sound audio may have been split into fragments or parts and distributed around the network. The same content may have been distributed with standard definition video and stereo audio by being split into other fragments or parts. For a peer or client to obtain that content with high definition video and stereo audio, it will be necessary for that client to obtain all of the distributed fragments or parts, even though the surround sound audio data in the first set of parts will not be required and the standard definition video data in the second set of parts will not be required.
According to the present invention, there is provided a method of operating a terminal device in a peer-to-peer network over which is provided a composite video signal having at least a video component signal and an audio component signal, the composite video signal having been divided into a plurality of parts suitable for propagation over the peer-to-peer network, the method including: acquiring the plurality of parts from a plurality of peers on the network; reconstructing the composite video signal for reproduction; wherein the step of acquiring includes requesting from peers on the network respective video component parts divided from the video component signal and respective audio * -2-component parts divided from the audio component signal; and the step of reconstructing includes reconstructing the video component signal from the video component parts received from peers over the network and reconstructing the audio component signal from the audio component parts received from peers over the network.
According to the present invention, there is also provided a video server for connection to a peer-to-peer network and for providing on the peer-to-peer network a composite video signal having at least a video component signal and an audio component signal, the server including: a divider for dividing the composite video signal into a plurality of parts suitable for propagation over the peer-to-peer network; wherein the video server is configured to separate the video component signal and the audio component signal; and the divider is configured to divide the composite video signal into video component parts and audio component parts such that the video component signal is carried in respective video component parts and the audio component signal is carried in respective audio component parts.
In this way, video component data is split into parts or fragments different to the audio component data. As a result, the peer-to-peer network is able to distribute only individual components as required by peers. The processing and decoding required by individual peers is thus reduced and, also, the overall bandwidth usage over the network is reduced. The present invention is highly advantageous in improving download speeds to individual users and across the network. Firstly, an individual peer need only download the particular component signal or signals that it requires. It is not forced to download additional unwanted component signal data as is the case with prior art arrangements.
Secondly, noting that some component signals will require much more data and hence use larger packets or more packets of data than other component signals, the present invention allows peers to avoid unnecessary download of data for component signals requiring large amounts of data when those peers only wish to acquire component signals having smaller amounts of data.
The composite video signal may further include additional component signals including one or more of a subtitle component signal, a surround sound component signal and an additional information component signal. The video server may be configured to separate the respective additional component signals and the divider may be configured to divide the composite video signal into additional respective component parts such that the additional component signals are carried in respective component parts.
In this way, many different types of component signal may be provided over the peer-to-peer network in their own respective component parts. Individual peers can then acquire components individually without having to acquire data of other components at the same time.
According to the present invention, there may be provided a peer-to-peer network including a video server as well as a plurality of terminal devices. Each terminal device can be configured to acquire selectively from over the network individual respective component signals by acquiring selectively the respective component parts.
Thus, compared to previous systems, the tenninal devices are configured to acquire component parts which contain data only for their respective component signals, rather than fragments or parts which are related merely to the content, for instance a movie, and which will contain data not required by that particular peer.
According to the present invention, there may be provided a peer-to-peer terminal device for connection to a peer-to-peer network, over which is provided a composite video signal having at least a video component signal and an audio component signal, the composite video signal having been divided into a plurality of parts suitable for propagation over the peer-to-peer network, the terminal device including: a receiver for acquiring the plurality of parts from a plurality of peers on the network; and a reconstructor for reconstructing the composite video signal for reproduction; wherein the receiver is configured to request from peers on the network respective video component parts divided from the video component signal and respective audio component parts divided from the audio component signal; and the reconstructor is configured to reconstruct the video component signal from the video component parts received from peers over the network and to reconstruct the audio component signal from the audio component parts received from peers over the network.
Similarly, there may be provided a method of operating a terminal device in a peer-to-peer network over which is provided a composite video signal having at least a video component signal and an audio component signal, the composite video signal having been divided into a plurality of parts suitable for propagation over the peer-to-peer network, the method including: acquiring the plurality of parts from a plurality of peers on the network; reconstructing the composite video signal for reproduction; wherein the step of acquiring includes requesting from peers on the network respective video component parts divided from the video component signal and respective audio component parts divided from the audio component signal; and the step of reconstructing includes reconstructing the video component signal from the video component parts received from peers over the network and reconstructing the audio component signal from the audio component parts received from peers over the network.
This may be configured in software for use on any appropriate terminal device, such as an integrated television, a set-top box, a gaming console, a portable gaming console and a computer such as a PC or laptop.
The invention will be more clearly understood from the following description, given by way of example only, with reference to the accompanying drawings, in which: Figure 1 illustrates schematically a peer-to-peer network embodying the present invention; Figures 2(a) to (d) illustrate examples of terminal devices for use as peers according to the present invention; Figure 3 illustrates an example of the various data components available for an individual content, such as a television programme/movie; Figures 4(a) to (c) illustrate examples of dividing content into fragments as
considered in the prior art;
Figure 5 illustrates schematically an example of a video server embodying the present invention; Figures 6(a) to (c) illustrate examples of component signals and their respective component parts for distribution according to the present invention; Figure 7 illustrates schematically an example of another component signal and its respective component parts for distribution according to the present invention; and Figure 8 illustrates schematically an embodiment of a terminal device embodying the present invention.
The present invention is applicable to distribution or propagation of a composite video signal over a peer-to-peer network.
Figure 1 illustrates schematically an example of a peer-to-peer network where a plurality of terminal devices 2 are all connected to a communication network 4 allowing those terminal devices 2 to communicate with another and thereby form a peer-to-peer network. Figure 1 is presented merely as an example of an appropriate network and it is possible to connect the terminal devices to one another in any known manner, for instance using a different structure of actual or virtual connections to that shown. Similarly, wireless networks with one or more hubs or repeaters are also possible.
As illustrated schematically in Figure 1, a video server 6 is also provided for connection to the peer-to-peer network and acts as the source of composite video signals for distribution/propagation around the peer-to-peer network.
The terminal devices 2 can be implemented in one or more of a large number of different ways. Figures 2(a) to (d) illustrate just four examples of possible terminal devices 2.
Figure 2(a) illustrates, as the terminal device 2, an integrated television device configured for connection to a network, such as the internet. Figure 2(b) illustrates, as the terminal device 2, a receiving device such as a set-top box or gaming console for connection to a display 2a, such as a television display. Figure 2(c) illustrates, as the terminal device 2, a portable video display device such as a portable gaming console.
Figure 2(d) illustrates, as the terminal device 2, a computer, such as a PC or laptop.
It is known to provide on a peer-to-peer network an audio/video file including data for the reproduction of a television programme or movie. For the purposes of the present application, this will be described as a composite video signal.
Any one of the terminal devices 2, acting as a peer in the peer-to-peer network, may wish to acquire a particular composite video signal for reproduction. In a known manner, that terminal device or peer can obtain the entire composite video signal from the video server 6 or can obtain various different parts of that composite video signal from a variety of different peers 2 on the network (as well as perhaps the video server 6). In this way, the uploading capacity of the video server 6 need not be so high when having to meet the demands of many peers 2 simultaneously.
Figure 3 illustrates schematically a number of component signals 10 which can make up a particular composite video signal. In particular, for each television programme * -6-or movie, a number of different component signals may be available. For the example illustrated in Figure 3, the video portion is available in any of three definitions, namely low definition, standard definition and high definition. Also, the audio part may be available in different forms and in different languages. In the example illustrated, the audio part is provided both as a stereo audio component signal and a surround sound audio component signal. Also, each of these formats may be available in a number of different languages.
The example of Figure 3 also illustrates the possibility of a number of subtitle component signals for respective languages. A number of additional information component signals may also be provided, for instance providing additional textual or graphic information relating to the programme/movie or perhaps even electronic programme guide information providing information or links to other composite video signals which are available.
When a particular television programme or movie is requested from any of the peers of the peer-to-peer network for the first time, because none of the data relating to that programme/movie has previously been distributed around the peer-to-peer network, it is only possible to obtain the respective composite video signal from the server 6.
Figure 4(a) illustrates schematically the content of a composite video signal obtained by peer A when that peer A requests a particular programme/movies in standard definition video, with surround sound (in a particular language) and with subtitles.
According to known techniques, the interleaved stream of standard definition video packets, surround sound video packets and subtitle packets is divided into a plurality of parts Al, A2, A3, etc. In this way, at some time in the future, it becomes possible for another peer to acquire the same programme/movie by obtaining one or more parts Al, A2, A3 etc from peer A whilst obtaining others of the parts Al, A2, A3, etc for the same programme/movie from other peers in the network.
Figures 4(b) and (c) illustrate examples of the composite video signals received by peers B and C. In particular, the composite video signal of Figure 4(b) will have been produced as a result of peer B requesting the programme/movie with high definition video and stereo audio. On the other hand, the composite video signal of Figure 4(c) will result from peer C having requested the programme/movie with low definition video, stereo audio, subtitles and additional information.
For completeness, it should be noted that different component signals 10 will include different respective amounts of data and require different respective bandwidths.
In practice this will result in more packets being sent for one component signal than * -7-another or larger packets being used for one component signal than another. As illustrated schematically in the figures, the same packet size is used such that different numbers of packets will be sent for different component signals. For example many more HD packets will be sent in order to provide the same programme movie as provided with corresponding SD packets.
The present invention proposes a different way of distributing, around the peer-to-peer network, the data making up the composite video signals. Peers can have a very active role in the distribution of the composite video signal and are responsible for sending data to other peers.
Figure 5 illustrates schematically an example of a video server 6 for providing to the peer-to-peer network pre-stored television programme/movies, for instance stored on a hard disk drive 20. It should be appreciated that it is also possible to provide a video server 6 which merely streams data as part of a current broadcast and, hence, does not have a database of stored programmes/movies.
For a requested composite video signal, the video server 6 makes use of a separator 22 to separate at least a video component signal (for instance one of the LD, SD and HD video component signals illustrated in Figure 3) and an audio component signal (for instance one of the stereo audio component signal and surround audio component signal in a particular language as illustrated in Figure 3). Each of these separated component signals is then divided by the divider 24 into a plurality of component parts suitable for distribution around the peer-to-peer network. The same applies to other types of component signal which are also separated and divided into their own respective component parts. The component parts can then be provided to the peer-to-peer network by means of any appropriate grid interface 26.
Considering a similar example given to that described with reference to Figure 4(a), when peer A requests a composite video signal having standard definition video, surround sound and subtitles, the video server 6 prepares respective component signals for the standard definition video, the surround sound and the subtitles as illustrated respectively in Figures 6(a) to (c). These component signals are then divided into respective parts as illustrated.
It will be appreciated that for the same composite video signal prepared by the video server, the same number of parts might be prepared and submitted over the peer-to-peer network as was done in the earlier system described with reference to Figures 4(a) and * -8- (c). However, according to the present invention, each component part will relate only to a respective type of content.
Following on from the example of Figures 6(a) to (c), if another peer, for instance peer B, requires the same programme/movie, but in high definition and with surround sound, the present invention provides significant advantages over the earlier arrangement.
As illustrated in Figure 7, peer B can obtain the video component signal (divided into component parts) for the high definition video from the video server 6, but can obtain the surround sound component signal, as illustrated in Figure 6(b) directly from peer A. It will be appreciated that, as discussed above the data requirements for some component signals will be much greater than for others. The examples of Figures 6 and 7 are shown schematically with packets of the same size. However, it is also possible to use larger packets for some component signals (for instance HD video) and!or larger parts containing respectively more packets per part.
In general, it will be appreciated that over time, with a large number of peers on the peer-to-peer network many of the different component signals, for instance as illustrated in Figure 3, will be available from a large number of different peers. When a peer wishes to obtain a particular programme/movie with a selection of component signals, by using the arrangement of the present invention, it is possible for that peer to obtain the component parts of the various signals individually from a variety of peers on the peer-to-peer network. Indeed, importantly, it becomes possible for a peer to obtain component parts which are relevant only to the requirements of that peer. In contrast, for the previous arrangement described with reference to Figures 4(a) to (c), for a peer to obtain from another peer a part (for instance part A2 of Figure 4(a)) with the required packets (for instance the SD video packets), it was necessary also to obtain (and transport over the network) additional packets (for instance the surround sound packet and subtitle packet of part A2) which were not required by that peer.
Figure 8 illustrates schematically an example of a terminal device 2 embodying the present invention.
An interface 30 connects the terminal device 2 to the network. In any known manner, for instance by means of a controller 32, the terminal device 2 may communicate with other parts of the peer-to-peer network in order to source all of the required component parts for a particular television programme/movie (and in the required video * -9-and audio format). This may be achieved in any desirable manner, for instance using the "bittorrent" system or similar and, for instance, making use of a tracker device on the network which provides information as to which peers on the network contain in their memories appropriate component signals (or component parts thereof) for the television programme/movie desired by the peer in question.
A receiver 34 then receives, by means of the interface 30, the required component parts from a variety of different peers distributed over the peer-to-peer network.
As explained above, each component part will contain only packets relating to a respective component signal. However, a variety of different component parts for different respective component signals may well arrive in an interlaced fashion.
The receiver 34 can make use of a memory 36 in order to store the received component parts as they are received. However, more importantly, a reconstructor 38, possibly retrieving stored component parts from the memory 36, is configured to reconstruct the component signals, for instance as illustrated in Figure 3, for reproduction by a reproducer 40, for instance including a video display and audio transducers.
The reconstructor 38 can reconstruct the component parts individually and maintain them separately for separate reproduction. Alternatively, the reconstructor could reconstruct a composite video signal or some other standard format in which the various packets relating to video, audio and other data are interlaced in a standard manner.
Details of this could depend on the software (decoders/rendering/..) present in the system. In most cases it should be sufficient for the reconstructor to piece back together the elementary streams while adding enough information so that the reproducer can synchronise the content. This reconstruction could be done on-the-fly so that only the parts need be stored (which can then easily be distributed to other peers).
In addition to the above, of course, the peer may subsequently receive a request for another peer on the peer-to-peer network to upload one or more component parts from one or more component signals stored in the memory 36. Under the control of the controller 32, the transmitter 42 can transmit such component parts by the peer-to-peer network to another peer on that network.
The present invention can be very effective in a live broadcast environment where there is TV-like behaviour, ie. zapping between channels, turning onloff subtitles, switching between audio tracks.
The invention can also be used in a scenario where video content is distributed for a number of platforms at the same time. A user can for instance buy a movie on his PlayStation 3CM) in high definition and can then later watch the movie on a PlayStation Portable(TM) in low definition. In this example, the user would only have to download the video component as the rest of the data would already be available on the PlayStation 3(TM)
Claims (13)
- CLAIMS1. A video server for connection to a peer-to-peer network and for providing on the peer-to-peer network a composite video signal having at least a video component signal and an audio component signal, the server including: a divider for dividing the composite video signal into a plurality of parts suitable for propagation over the peer-to-peer network; wherein the video server is configured to separate the video component signal and the audio component signal; and the divider is configured to divide the composite video signal into video component parts and audio component parts such that the video component signal is carried in respective video component parts and the audio component signal is carried in respective audio component parts.
- 2. A video server according to claim 1 for providing a composite video signal further having additional component signals including one or more of a subtitle component signal, a surround sound component signal and an additional information component signal; wherein the video server is configured to separate the respective additional component signals and the divider is configured to divide the composite video signal into additional respective component parts such that the additional component signals are carried in respective component parts.
- 3. A peer-to-peer network including: a video server according to claim 1 or 2; and a plurality of terminal devices, each terminal device being configured to acquire selectively from over the network individual respective component signals by acquiring selectively the respective component parts.
- 4. A peer-to-peer terminal device for connection to a peer-to-peer network, over which is provided a composite video signal having at least a video component signal and ai audio component signal, the composite video signal having been divided into a plurality of parts suitable for propagation over the peer-to-peer network, the terminal device including: a receiver for acquiring the plurality of parts from a plurality of peers on the * -12-network; and a reconstructor for reconstructing the composite video signal for reproduction; wherein the receiver is configured to request from peers on the network respective video component parts divided from the video component signal and respective audio component parts divided from the audio component signal; and the reconstructor is configured to reconstruct the video component signal from the video component parts received from peers over the network and to reconstruct the audio component signal from the audio component parts received from peers over the network.
- 5. A method of providing on a peer-to-peer network a composite video signal having at least a video component signal and an audio component signal, the method comprising: dividing the composite video signal into a plurality of parts suitable for propagation over a peer-to-peer network; arranging the video component signal to be carried in respective video parts of said plurality of parts; and arranging the audio component signal to be carried in respective audio parts of said plurality of parts.
- 6. A method of operating a terminal device in a peer-to-peer network over which is provided a composite video signal having at least a video component signal and an audio component signal, the composite video signal having been divided into a plurality of parts suitable for propagation over the peer-to-peer network, the method including: acquiring the plurality of parts from a plurality of peers on the network; reconstructing the composite video signal for reproduction; wherein the step of acquiring includes requesting from peers on the network respective video component parts divided from the video component signal and respective audio component parts divided from the audio component signal; and the step of reconstructing includes reconstructing the video component signal from the video component parts received from peers over the network and reconstructing the audio component signal from the audio component parts received from peers over the network.
- 7. A computer program comprising program code means for performing all S -13-the steps of any one of claims 5 and 6 when said program is run on a computer.
- 8. A computer program product comprising program code means stored on a computer readable medium for performing the method of any one of claims 5 and 6 when said program product is run on a computer.
- 9. A video server constructed and arranged substantially as hereinbefore described with reference to and as illustrated by the accompanying drawings.
- 10. A peer-to-peer network constructed and arranged substantially as hereinbefore described with reference to and as illustrated by the accompanying drawings.
- 11. A peer-to-peer terminal device constructed and arranged substantially as hereinbefore described with reference to and as illustrated by the accompanying drawings.
- 12. A method of providing a composite video signal on a peer-to-peer network substantially as hereinbefore described with reference to and as illustrated by the accompanying drawings.
- 13. A method of operating a terminal device substantially as hereinbefore described with reference to and as illustrated by the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0902256A GB2467743A (en) | 2009-02-11 | 2009-02-11 | Video server and method of distributing media over a network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0902256A GB2467743A (en) | 2009-02-11 | 2009-02-11 | Video server and method of distributing media over a network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0902256D0 GB0902256D0 (en) | 2009-03-25 |
| GB2467743A true GB2467743A (en) | 2010-08-18 |
Family
ID=40527185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0902256A Withdrawn GB2467743A (en) | 2009-02-11 | 2009-02-11 | Video server and method of distributing media over a network |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2467743A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2500179A (en) * | 2012-03-09 | 2013-09-18 | Canon Kk | Transmitting sub-sampled video frames, through P different determined transmission paths |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1643716A1 (en) * | 2004-09-03 | 2006-04-05 | Microsoft Corporation | A system and method for receiver driven streaming in a peer-to-peer network |
| US20080022343A1 (en) * | 2006-07-24 | 2008-01-24 | Vvond, Inc. | Multiple audio streams |
| US20090030976A1 (en) * | 2007-07-26 | 2009-01-29 | Realnetworks, Inc. | Variable fidelity media provision system and method |
-
2009
- 2009-02-11 GB GB0902256A patent/GB2467743A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1643716A1 (en) * | 2004-09-03 | 2006-04-05 | Microsoft Corporation | A system and method for receiver driven streaming in a peer-to-peer network |
| US20080022343A1 (en) * | 2006-07-24 | 2008-01-24 | Vvond, Inc. | Multiple audio streams |
| US20090030976A1 (en) * | 2007-07-26 | 2009-01-29 | Realnetworks, Inc. | Variable fidelity media provision system and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2500179A (en) * | 2012-03-09 | 2013-09-18 | Canon Kk | Transmitting sub-sampled video frames, through P different determined transmission paths |
| GB2500179B (en) * | 2012-03-09 | 2014-04-23 | Canon Kk | A method of transmitting sub-sampled video frames, through p different determined transmission paths |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0902256D0 (en) | 2009-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4850234B2 (en) | How to multicast content | |
| JP5580302B2 (en) | Broadcast seeding for peer-to-peer networks | |
| KR101484900B1 (en) | Audio splitting with codec-enforced frame sizes | |
| US10165032B2 (en) | Chunking of multiple track audio for adaptive bit rate streaming | |
| US10382801B2 (en) | Transmission apparatus, transmission method, reception apparatus, and reception method | |
| US20080160911A1 (en) | P2P-based broadcast system and method using the same | |
| CN104125516B (en) | Media file reception, media file sending method and apparatus and system | |
| US7970932B2 (en) | View-upload decoupled peer-to-peer video distribution systems and methods | |
| US20120143986A1 (en) | Systems and methods for downloading by different processes | |
| CN102196314A (en) | System and method for realizing streaming media transmission by using peer-to-peer (P2P) set-top box | |
| US20160073149A1 (en) | Method and apparatus for improved network recording | |
| US20070260546A1 (en) | Apparatus and Method for Serving Digital Content Across Multiple Network Elements | |
| CN111193936B (en) | Video streaming transmission method and device, electronic equipment and computer readable storage medium | |
| Noam | The technology, business, and economics of streaming video: The next generation of media emerges | |
| CN114630146B (en) | Method for solving problem of progress bar preview jamming in IPTV | |
| GB2467743A (en) | Video server and method of distributing media over a network | |
| US10237584B2 (en) | Real-time incorporation of user-generated content into third-party content streams | |
| JP6275906B1 (en) | Program and method for reproducing moving image content, and system for distributing and reproducing moving image content | |
| US20120079605A1 (en) | Methods and Arrangements for Rendering Real-Time Media Services | |
| CN106209860B (en) | Real-time classroom streaming media live broadcast load distribution method | |
| EP1971144A1 (en) | Method, software and installation for the creation and distribution of personalized internet TV-channels | |
| CN112565811B (en) | Decentralized edge node distribution system for Internet television | |
| RU2658672C2 (en) | Content provision device, program, terminal device and content provision system | |
| JP2006509392A (en) | Application data signal generation method and apparatus | |
| CN107547948B (en) | Method and system for simultaneously providing high code and low code media data access |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |