CN101548279A - Method and system for providing file - Google Patents
Method and system for providing file Download PDFInfo
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- CN101548279A CN101548279A CNA2007800451485A CN200780045148A CN101548279A CN 101548279 A CN101548279 A CN 101548279A CN A2007800451485 A CNA2007800451485 A CN A2007800451485A CN 200780045148 A CN200780045148 A CN 200780045148A CN 101548279 A CN101548279 A CN 101548279A
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- top box
- vod
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
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- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Information Transfer Between Computers (AREA)
Abstract
A method and a system for providing a file. The method of providing a file by using at least one server linked with a plurality of terminals through a network, the method includes: determining whether there exists a destination terminal which stores a requested specific video-on-demand (VOD) file by searching a database which stores a list of VOD files stored in the plurality of terminals, when a request terminal that is one of the plurality of terminals requests a specific VOD file to be transmitted; and transmitting access information of the destination terminal to the request terminal when there exists the destination terminal and transmitting the requested specific VOD file to the request terminal when there exists no destination terminal. Accordingly, a VOD content is directly transmitted among terminals under a control of a VOD server, when a VOD service is provided. Therefore, it is possible to remarkably reduce a load of the VOD server by reducing traffic which was concentrated on the VOD server in the past.
Description
Technical field
The present invention relates to provide the method and system of file, more specifically, relate to the method and system that file is provided, it can be worked as when the VOD service is provided by making the VOD file can transmit the load that reduces the VOD server between the IP set-top box.
Background technology
In general, internet protocol TV (hereinafter referred is IPTV) service is used for by using high-speed Internet to provide information, moving picture contents and broadcasted content to televisor.
The IPTV service is a kind of of digital convergence technology, because the IPTV service obtains by Internet service is combined with the television broadcasting service.The IPTV service makes uncomfortable computed user search for the Internet by televisor, so that the various contents and the value-added service that can provide by the Internet, for example movie services, home shopping service, Home Banking's service, game on line service and MP3 service to be provided.
In order to use IPTV service, the software that needs televisor, IP set-top box and can handle the request of spectators TV on the broadcast medium.At this moment, the IP set-top box is connected to wide-area communication network, for example the Internet.The IP set-top box is used for the process IP vision signal and the IP vision signal is converted to standard TV signal.The IP set-top box can be integrated into televisor.
IPTV service is that with the common cablecast service or the similarity of satellite broadcast service the IPTV service provides broadcasted content, but the IPTV service is interactive.Interactive feature makes it possible to provide video request program (hereinafter referred is VOD) service.
The VOD service is designed so that spectators can be in the selection of time and the program of watching expectation of expectation.The VOD server compresses video information of VOD service is provided and passes through the core network transmission of video information.The VOD data transmission is to the indoor IP set-top box that is installed in the user, and reverts to digital picture and voice by the IP set-top box.
On the other hand, because the IP set-top box can be to VOD server forwards user's request, so the IP set-top box makes the user can watch the broadcast program of expectation in the time of expectation.In addition, comprise wherein can memory image or the massive storage space of voice for the VOD server.Must can search for this database in real time by setting up database effectively.
In the past, in VOD service, when the VOD of user capture content supplier server and when asking the VOD server that the VOD content of expectation is provided, the VOD server is usually to download or the mode of stream provides the VOD that is asked content to the user.
For the VOD service, a plurality of user terminals (for example IP set-top box) visit VOD server.In the case, when a plurality of users visited the VOD server simultaneously, the VOD server overload had reduced speed of download thus.When the VOD server seriously transshipped, some terminals may disconnect from the VOD server.The problems referred to above cause the deterioration of service quality.
Therefore, VOD service provider wishes that the quantity by increasing the VOD server or the network bandwidth are to address the above problem.Yet, owing to increase the quantity of VOD server and the network bandwidth at physical condition be restricted economically, so such scheme can not be dealt with problems at all.Therefore, the problems referred to above have hindered the development that will be subjected to the extensive VOD service that needs and have popularized.
Summary of the invention
Technical matters
The invention provides a kind of method and system that file is provided, it can reduce the load of VOD server significantly by the VOD content can be transmitted between terminal when the VOD service is provided.
Technical scheme
According to an aspect of the present invention, at least one server that provides a kind of use to be connected with a plurality of terminals by network provides the method for file, this method may further comprise the steps: when transmitting concrete video request program (VOD) file as the requesting terminal request of one of described a plurality of terminals, search for by database, determine whether to exist the destination terminal of having stored the concrete VOD file of being asked the tabulation of having stored the VOD file of being stored in described a plurality of terminal; And when having described destination terminal, to the visit information of the described destination of described request terminal transmission terminal, and when not having the destination terminal, the concrete VOD file of being asked to the described request terminal transmission.
According to a further aspect in the invention, provide a kind of method that file is provided, this method may further comprise the steps: make request IP set-top box can ask Control Server that concrete VOD file is provided; Make described Control Server can determine whether to exist the destination of the concrete VOD file of being asked IP set-top box can be provided; And when having described destination IP set-top box, transmit the visit information of described destination IP set-top box to described request IP set-top box, and when not having destination IP set-top box, can provide the visit information of the VOD server of the VOD file of being asked to the transmission of described request IP set-top box.
According to a further aspect in the invention, provide a kind of method that file is provided, this method may further comprise the steps: make request IP set-top box can ask VOD server streaming to transmit concrete VOD file; Make described VOD server can determine whether to exist orthoflow to transmit the destination IP set-top box of the concrete VOD file of being asked; And when having described destination IP set-top box, transmit the visit information of described destination IP set-top box to described request IP set-top box, and when not having destination IP set-top box, transmit the VOD file of being asked to described request IP set-top box streaming.
According to a further aspect in the invention, a kind of system is provided, this system comprises: a plurality of set-top box that are connected to network, and VOD server, whether it determines to exist in described a plurality of set-top box can provide the destination of the concrete VOD file of being asked IP set-top box, when having described destination IP set-top box, described VOD server transmits the visit information of described destination IP set-top box to described request IP set-top box, and when not having destination IP set-top box, the concrete VOD file that described VOD server is asked to the transmission of described request IP set-top box.
Description of drawings
Describe illustrative embodiments of the present invention in detail by the reference accompanying drawing, above-mentioned and other feature and advantage of the present invention will become more obvious, in the accompanying drawings:
Fig. 1 is the block diagram of structure of system of method that is used to realize providing file that first embodiment of the invention is shown;
Fig. 2 is the block diagram that the structure of the terminal shown in Fig. 1 is shown;
Fig. 3 is the process flow diagram that the method that file is provided of first embodiment of the invention is shown;
Fig. 4 illustrates the example of system of method that is used to realize transmitting the VOD file second embodiment of the invention;
Fig. 5 illustrates the operation that the user uses IP set-top box second embodiment of the invention to download the VOD file;
Fig. 6 illustrates another operation that the user uses IP set-top box second embodiment of the invention to download the VOD file;
Fig. 7 illustrates the operation again that the user uses IP set-top box second embodiment of the invention to download the VOD file;
Fig. 8 illustrates the another operation that the user uses IP set-top box second embodiment of the invention to download the VOD file;
Fig. 9 illustrates the user and uses an operation that receives the VOD file according to the IP set-top box of the 3rd embodiment of the present invention in the stream mode;
Figure 10 illustrates the user and uses another operation that receives the VOD file according to the IP set-top box of the 3rd embodiment of the present invention in the stream mode; And
Figure 11 illustrates the user and uses an operation again that receives the VOD file according to the IP set-top box of the 3rd embodiment of the present invention in the stream mode.
Embodiment
Describe preferred implementation of the present invention in detail now with reference to accompanying drawing.
[first embodiment]
Fig. 1 is the block diagram of structure of system of method that is used to realize providing file that first embodiment of the invention is shown.
With reference to Fig. 1, system comprises Control Server 101, is connected to the peer database 103 of Control Server 101, VOD server 104 and a plurality of terminal 102.Control Server 101, VOD server 104 and terminal 102 can the links each other by the wide area network of for example the Internet.
Terminal 102 can be the Internet protocol set-top boxes (an IP set-top box).Perhaps, terminal 102 can be various devices, for example is used to provide IPTV PC, the PMP etc. of service.
Hereinafter, the terminal of the concrete VOD file of request transmission is called as the requesting terminal in the terminal 102.Can provide the terminal of the VOD file of being asked to be called as the destination terminal.For example, the destination terminal can be the terminal of storing the concrete VOD file of being asked.The destination terminal can exist or not exist.
Visit information and the tabulation that be stored in VOD file in terminal 102 tabulation that come in peer database 103 memory access information and VOD file of Control Server 101 by real-time update terminal 102.That is, Control Server 101 can be carried out the function of P2P server.Then, the visit information of terminal 102 comprise can access terminal 102 by it the IP address, open/close state, service conditions, transmission performance (transmission performance), failure condition etc.
When concrete VOD file was downloaded in the requesting terminal request in the terminal 102 that is connected to network, Control Server 101 had been stored the destination terminal of the VOD file of being asked in the search terminal in peer database 103.
Control Server 101 is handled by search can find one or more destination terminal of having stored the VOD file of being asked.Perhaps, Control Server 101 may not find the destination terminal.When Control Server 101 finds one or more destination terminal, consider the visit information of destination terminal and the IP information of optimal destination terminal is provided to the requesting terminal.On the other hand, when Control Server 101 did not find the destination terminal, Control Server 101 provided the IP address of VOD server 104 to the requesting terminal.
The tabulation of the VOD file of being stored in peer database 103 storage terminals 102 and the visit information of terminal 102, IP address for example, open/close state, service conditions, transmission performance, failure condition etc.
VOD server 104 can be the VOD service server that the VOD file is provided in typical client-server mode.Yet Control Server and peer database can be included in the VOD server according to execution environment, to form integrating server.Said circumstances will be described by the second following embodiment.
On the other hand, the VOD file can be the VOD content (being digital multimedia content) that provides by VOD service or the part of VOD content.For example, when the VOD content that provides by VOD service was concrete film, the VOD file can be a whole movie file or by film being divided into a plurality of files that obtain.Particularly, because the capacity of the VOD content file of a VOD content is very big, so the VOD content can be divided into a plurality of.
Fig. 2 is the block diagram that the structure of terminal shown in Figure 1 is shown.Terminal 102a shown in Figure 2 represents one of terminal shown in Figure 1 102.
See figures.1.and.2, terminal 102a comprises I/O control module 200 and local storage unit 204.Hereinafter, suppose that terminal 102a is the requesting terminal.
I/O control module 200 control is for the visit of Control Server 101, VOD server 104 or destination terminal, and from the download of the VOD file of VOD server or destination terminal transmission.At this, I/O control module 200 can comprise query signal module 201, access control module 202 and transport module 203.Above-mentioned I/O control module 200 can be realized with program code.Program code can be carried out by the microprocessor (not shown) that is usually included in the terminal 102.
In addition, when terminal 102a was powered, query signal module 201 is access control server 101 automatically, and transmitted the information about the terminal 102a that comprises query signal module 201.At this moment, the information of being transmitted about terminal 102a can comprise the VOD file that is stored among the terminal 102a and the IP address of the tabulation of the VOD file do not downloaded fully, terminal 102a, communications status etc.At this, the list storage of VOD file is in local storage unit 204.
On the other hand, when terminal 102a was used as the destination terminal, access control module 202 can be used for determining whether access control module 202 allows requesting terminal access terminal 102a in the process of uploading the VOD file.In the case, according to from the IP address of the requesting terminal of Control Server 101 transmission whether with the IP matching addresses of the terminal of attempting access terminal 102a, access control module 202 can determine whether access control module 202 allows request terminal accesses terminal 102a.
When the terminal 102a that comprises transport module 203 was used as the requesting terminal, transport module 203 was downloaded the VOD files from destination terminal or VOD server 104.When the terminal 102a that comprises transport module 203 was used as the destination terminal, transport module 203 was uploaded the VOD file to the requesting terminal.
Fig. 3 is the process flow diagram that the method that file is provided of first embodiment of the invention is shown.
With reference to Fig. 1 and Fig. 3, as the concrete VOD file of requesting terminal request Control Server 101 transmission of one of terminal 102 that is connected to network.For example, when the user selected VOD content that the user wants to download, the requesting terminal produced the transfer request signal at the VOD file of expectation transmission, and to Control Server 101 transmission these transfer request signals (S301).
Then, Control Server 101 receives transfer request signals, and the destination terminal (S302) of the VOD file of being asked has been stored in search in peer database 103, and whether the destination terminal of having determined to store the VOD file of being asked exists (S303).
As the result who determines, when the destination terminal of the VOD file of being asked has been stored in existence, the IP address (S304) that Control Server 101 extracts the destination terminals.At this moment, may there be a plurality of destinations terminal.In the case, consider the visit information or the network state of the destination terminal of being extracted, the IP address that Control Server 101 extracts the destination terminal that can full out upload the VOD file.For example, Control Server 101 can extract the destination terminal that is in the good network state, has the destination terminal of the shortest transmission path estimation or not have the IP address of the destination terminal of fault.
Subsequently, Control Server 101 transmits the IP address of the destination terminal of being extracted to the requesting terminal.Then, described IP address visit destination terminal (S305) is used in the requesting terminal.
On the other hand, when not having the destination terminal of having stored the VOD file of being asked, Control Server 101 is to the IP address of requesting terminal transmission VOD server 104.Then, described IP address visit VOD server 104 (S306) are used in the requesting terminal.
When request terminal accesses destination terminal or VOD server 104, the VOD file (S307) that request terminal downloads is asked.Then, the requesting terminal determines whether the VOD file of being asked downloads (S308) fully.When the VOD file of being asked was not downloaded fully, the requesting terminal can ask Control Server 101 to transmit the VOD file again by producing transfer request signal once more.For example, when since the network problem requesting terminal when the destination terminal disconnects, or when the destination terminal was cut off the power supply, the requesting terminal may not downloaded the VOD file of being asked fully.In the case, requesting terminal request Control Server 101 transmits the VOD file of being asked again.
[second embodiment]
In second embodiment below, described situation is the function that the VOD server comprises above-mentioned Control Server and peer database, and a plurality of destinations terminal can provide the VOD file.
Fig. 4 illustrates the example of system of method that is used to realize transmitting the VOD file second embodiment of the invention.
With reference to Fig. 4, IP set-top box T1 comes directly to download the VOD file from other IP set-top box T1 to T6 with reference to the tabulation of the VOD file of being managed by the VOD server S to T6.
The host-host protocol and the application program that are installed in the VOD file of IP set-top box T1 in the T6 can have bit-torrent (Bit-Torrent) type.For example, can in T6, bit-torrent client be installed at each IP set-top box T1.
A plurality of VOD files are stored and managed to the VOD server S.The VOD server is by upgrading IP set-top box T1 to the visit information of T6 be stored in the tabulation of the VOD file of IP set-top box T1 in the T6, store with managing I P set-top box T1 to the visit information of T6 be stored in the tabulation of the VOD file of IP set-top box T1 in the T6.That is, the VOD server S can be carried out the function of P2P server.At this moment, IP set-top box T1 comprises the IP address, open/close state, service conditions, transmission performance, failure condition that can visit the IP set-top box by it etc. to the visit information of T6.
In addition, when the request IP set-top box request VOD server S that is connected to network in the IP set-top box is downloaded concrete VOD file, the VOD server S destination IP set-top box that the VOD file of being asked has been stored in search in by the tabulation of the VOD file of VOD server admin.
The VOD server S can be handled by search and find one or more destination set-top box of having stored the VOD file of being asked.Perhaps, the VOD server S may not find destination IP set-top box.When the VOD server S found one or more destination IP set-top box, the visit information of destination IP set-top box was provided to request IP set-top box.On the other hand, when the VOD server S did not find destination IP set-top box, the VOD server S directly provided the VOD file of being asked that is included in the VOD server S to request IP set-top box.
Request IP set-top box can be represented the IP set-top box of IP set-top box T1 concrete VOD file of request transmission in the T6.Destination IP set-top box can represent that IP set-top box T1 can provide the IP set-top box by the VOD file of request IP set-top box request in the T6.For example, IP set-top box in destination can be represented the IP set-top box that IP set-top box T1 stores the VOD file of being asked in the T6.
On the other hand, the VOD file can be the VOD content (being digital multimedia content) that provides by VOD service or the part of VOD content.When the VOD file was one section VOD content, along with the size increase of VOD content, the quantity of VOD file increased.Particularly, large-sized VOD content can be divided into a large amount of section (pieces).
Fig. 5 illustrates the operation that the user uses IP set-top box second embodiment of the invention to download the VOD file.
With reference to Fig. 4 and Fig. 5, first user user1 request VOD server S is transmitted concrete VOD file, and comes from the concrete VOD file of VOD downloaded by the IP set-top box T1 that uses the first user user1.In the case, there is not VOD file A in what its IP set-top box T2 in office in T6.When the download of concrete VOD file was finished, VOD file A was stored in the hard disk of IP set-top box T1 of the first user user1.
Fig. 6 illustrates another operation that the user uses IP set-top box second embodiment of the invention to download the VOD file.
With reference to Fig. 4 and Fig. 6, second user user2 request VOD server S transmission VOD file A.The VOD server S checks whether VOD file A is stored among the IP set-top box T1 of the first user user1, and is stored among the IP set-top box T1 of the first user user1 to the IP set-top box T2 of second user user2 notice VOD file A.That is, the VOD server S has wherein been stored the visit information of the destination IP set-top box of VOD file A to the transmission of request IP set-top box.
Visit information comprises IP address, service conditions, transmission performance, failure condition and the open/close state of the IP set-top box T1 of the first user user1.The IP set-top box T2 of the second user user2 directly visits the IP set-top box T1 of the first user user1, and downloads VOD file A from IP set-top box T1.
Fig. 7 illustrates the operation again that the user uses IP set-top box second embodiment of the invention to download the VOD file.
With reference to Fig. 7, the 3rd user user3 request VOD server S transmission VOD file A.The VOD server S checks whether VOD file A is stored among the IP set-top box T2 of the IP set-top box T1 of the first user user1 and the second user user2, and is stored among IP set-top box T1 and the T2 to the IP set-top box T3 of the 3rd user user3 notice VOD file A.That is, the VOD server S has wherein been stored the IP set-top box T1 of VOD file and the visit information of T2 to the IP set-top box T3 transmission as the 3rd user user3 that asks the IP set-top box.
Visit information comprises IP address, service conditions, transmission performance, failure condition and the open/close state etc. of IP set-top box T1 and T2.The IP set-top box T3 of the 3rd user user3 directly visits the IP set-top box T1 of the first user user1 and the IP set-top box T2 of the second user user2, the IP address of described IP set-top box T1 and IP set-top box T2 is included in the visit information, and the IP set-top box T3 of the 3rd user user3 downloads VOD file A from IP set-top box T1 and T2.
At this moment, consider as included service conditions, transmission performance and failure condition etc. in the visit information of the IP set-top box T2 of the IP set-top box T1 of the first user user1 of destination IP set-top box and the second user user2, can control the download ratio as the IP set-top box T3 of the 3rd user user3 of request IP set-top box.For example, the IP set-top box T3 of the 3rd user user3 can download mass data from the good IP set-top box of transmission performance, and downloads low volume data from the IP set-top box of transmission performance difference.In addition, can download mass data from the good IP set-top box of service conditions.Can download low volume data from the IP set-top box of service conditions difference.According to execution environment, will pay the utmost attention to service conditions, transmission performance or failure condition.
Fig. 8 illustrates the another operation that the user uses IP set-top box second embodiment of the invention to download the VOD file.
With reference to Fig. 8, four-function family user4 uses the IP set-top box T4 of four-function family user4 to ask VOD server S transmission VOD file A.By checking whether VOD file A is stored among the IP set-top box T3 of the IP set-top box T2 of IP set-top box T1, the second user user2 of the first user user1 and the 3rd user user3, and the VOD server S is stored in IP set-top box T1 in T3 to the IP set-top box T4 of four-function family user4 notice VOD file A.That is, the VOD server S has wherein been stored the visit information of the IP set-top box T1 of VOD file to T3 to the IP set-top box T4 transmission as the four-function family user4 that asks the IP set-top box.
Visit information comprises the IP set-top box T1 that wherein stored VOD file IP address, service conditions, transmission performance, failure condition and the open/close state etc. to T3.Be included in IP set-top box T1 in the visit information to T3 by its IP address of direct visit, the IP set-top box T4 of four-function family user4 downloads VOD file A from IP set-top box T1 to T3.At this moment, as mentioned above, consider IP set-top box T1 included service conditions, transmission performance, failure condition etc. in the visit information of T3, the IP set-top box T4 of four-function family user4 can control the download ratio.
On the other hand, when the IP set-top box T4 of four-function family user4 when the IP set-top box T1 of the first user user1 disconnects, the set-top box T4 of four-function family user4 can download the remainder of VOD file continuously from the IP set-top box T3 of the IP set-top box T2 of the second user user2 and the 3rd user user3.
So far, the processing of downloading the VOD file has been described.That is, the IP set-top box is stored the VOD file that is transmitted in hard disk with downloading mode.
[the 3rd embodiment]
In following embodiment 3, will describe when not being to download to the downloading mode in the IP set-top box fully but the processing of distribution services when providing the VOD service in the stream mode with the VOD file.In the 3rd embodiment, request IP set-top box can represent that IP set-top box T1 asks streaming to transmit IP set-top box of (stream) concrete VOD file in T6.
Fig. 9 illustrates the user and uses an operation that receives the VOD file according to the IP set-top box of the 3rd embodiment of the present invention in the stream mode.
With reference to Fig. 9, the first user user1 asks the VOD server S by the IP set-top box T1 ' that uses the first user user1 ' streaming transmission VOD file A ', and from the VOD server S ' streaming transmission VOD file A '.In the case, VOD file A ' not streaming be sent in any other IP set-top box.
Figure 10 illustrates the user and uses another operation that receives the VOD file according to the IP set-top box of the 3rd embodiment of the present invention in the stream mode.
With reference to Figure 10, the second user user2 uses the IP set-top box T2 ' of the second user user2 also to ask the VOD server S ' streaming transmission VOD file A '.The VOD server S ' just transmitting the visit information of the IP set-top box T1 ' of VOD file A ' in streaming to the IP set-top box T2 ' of second user user2 transmission.In the case, because IP set-top box T1 ' just transmits VOD file A ' in streaming, so the IP set-top box T2 ' of the second user user2 can transmit the part by the VOD file A ' of the IP set-top box T1 ' buffering of the first user user1 from the IP set-top box T1 ' streaming of the first user user1.Simultaneously, the IP set-top box T2 ' of the second user user2 can be from the VOD server S ' streaming transmits another part of VOD file A '.In the case, the second user user2 can finish the streaming that similar time that streaming transmits finishes VOD file A ' at the first user user1 and transmits.
Visit information just comprises IP address, service conditions, transmission performance, failure condition and the open/close state etc. of IP set-top box T1 ' that transmit the first user user1 of VOD file A ' in streaming.The IP set-top box T2 ' of the second user user2 directly visits the IP set-top box T1 ' of the first user user1, and transmits VOD file A ' from IP set-top box T1 ' streaming.
Figure 11 illustrates the user and uses an operation again that receives the VOD file according to the IP set-top box of the 3rd embodiment of the present invention in the stream mode.
With reference to Figure 11, the 3rd user user3 uses the IP set-top box T3 ' of the 3rd user user3 to ask the VOD server S ' streaming transmission VOD file A '.The VOD server S ' just transmit the IP set-top box T1 ' of VOD file A ' and the visit information of T2 ' to IP set-top box T3 ' transmission in streaming as the 3rd user user3 that asks the IP set-top box.In the case, because IP set-top box T1 ' and T2 ' just transmit VOD file A ' in streaming, so the set-top box T3 ' of the 3rd user user3 can transmit the part of the VOD file A ' that the IP set-top box T2 ' by the IP set-top box T1 ' of the first user user1 and the second user user2 cushions from the IP set-top box T2 ' streaming of the IP set-top box T1 ' of the first user user1 and the second user user2.Simultaneously, the set-top box T3 ' of the 3rd user user3 can be from the VOD server S ' streaming transmits another part of VOD file A '.
Visit information comprises just at the IP set-top box T1 ' of streaming transmission VOD file A ' and IP address, service conditions, transmission performance, failure condition and the open/close state etc. of T2 '.
At this moment, consider service conditions included in the visit information of IP set-top box T1 ' and T2 ', transmission performance, failure condition etc., can control the stream ratio as the IP set-top box T3 ' of the 3rd user user3 of request IP set-top box.For example, the IP set-top box T3 ' of the 3rd user user3 can download mass data from the good IP set-top box of transmission performance, and downloads low volume data from the IP set-top box of transmission performance difference.
In the case, because IP set-top box T1 ' the institute uploaded data amount of the first user user1 may increase, so buffering can be provided, it can be identical making the upload speed of the data of IP set-top box T2 ' institute's uploaded data amount of the IP set-top box T1 ' of the user user1 that wins and the second user user2 or IP set-top box T1 ' and T2 '.
In addition, because the upload speed of data depends on the performance of IP set-top box, so the IP set-top box of wanting streaming to transmit the VOD file can be determined the stream ratio by the speed that compares IP set-top box streaming transmission VOD file.
According to the 3rd embodiment of the present invention, in the service of VOD stream, by making that want streaming to transmit other IP set-top box and the VOD server that the IP set-top box of concrete VOD file can be respectively transmits this concrete VOD file from streaming comes streaming to transmit the different piece of concrete VOD file, can distribute the professional of VOD server and improve the flow velocity degree simultaneously.
As mentioned above, at the method and system that is used for providing file of the present invention, when the VOD service is provided, the VOD content is directly transmitted between terminal.Therefore, by reducing the business that concentrates in the past on the VOD server, can reduce the load of VOD server significantly.In addition, when the VOD service is provided,, can improve service quality by increasing transmission speed to the VOD of terminal transmission file.
Claims (17)
1, a kind of method of using at least one server that is connected with a plurality of terminals by network that file is provided, this method may further comprise the steps:
When transmitting concrete video request program (VOD) file as the requesting terminal request of one of described a plurality of terminals, search for by database, determine whether to exist the destination terminal of having stored the concrete VOD file of being asked the tabulation of having stored the VOD file of being stored in described a plurality of terminal; And
When having described destination terminal, to the visit information of the described destination of described request terminal transmission terminal, and when not having the destination terminal, the concrete VOD file of being asked to the described request terminal transmission.
2, method according to claim 1, the visit information of wherein said destination terminal comprises the IP address that can visit described destination terminal by it.
3, method according to claim 2, the visit information of wherein said destination information comprise at least one in open/close state, service conditions, transmission performance and the failure condition of described destination terminal.
4, a kind of method that file is provided, this method may further comprise the steps:
Make request IP set-top box can ask Control Server that concrete VOD file is provided;
Make described Control Server can determine whether to exist the destination of the concrete VOD file of being asked IP set-top box can be provided; And
When having described destination IP set-top box, transmit the visit information of described destination IP set-top box to described request IP set-top box, and when not having destination IP set-top box, can provide the visit information of the VOD server of the VOD file of being asked to the transmission of described request IP set-top box.
5, method according to claim 4, this method is further comprising the steps of:
When transmitting the visit information of described destination IP set-top box from described Control Server, make described request IP set-top box can visit described destination IP set-top box by IP address included in the visit information that uses described destination IP set-top box; And
Download the concrete VOD file of being stored in the destination IP set-top box of being visited of being asked.
When 6, method according to claim 5, this method comprise that also working as the concrete VOD file of being asked does not download fully, the concrete VOD file that makes described request IP set-top box can ask described Control Server to transmit again to be asked.
7, method according to claim 4, this method is further comprising the steps of:
When the visit information of the described destination IP set-top box of transmitting described VOD server from described Control Server, make the described request set-top box can visit described VOD server by IP address included in the visit information that uses described VOD server; And
The concrete VOD file of being asked from the VOD downloaded of being visited.
8, method according to claim 4, wherein in the transmission of visit information, when having a plurality of destinations IP set-top box, described Control Server transmits the visit information of described a plurality of destinations IP set-top box to described request IP set-top box.
9, method according to claim 8, this method is further comprising the steps of:
When transmitting the visit information of described a plurality of destinations IP set-top box from described Control Server, make described request IP set-top box visit described a plurality of destinations IP set-top box by included IP address in the visit information that uses described a plurality of destinations IP set-top box; And
Download the concrete VOD file of being asked from a plurality of destinations IP set-top box of being visited.
10, method according to claim 9, wherein when downloading the concrete VOD file asked, consider at least one in service conditions, open/close state, failure condition and the transmission performance included in the visit information of the destination IP set-top box of being visited, described request IP set-top box control download ratio.
11, a kind of method that file is provided, this method may further comprise the steps:
Make request IP set-top box can ask VOD server streaming to transmit concrete VOD file;
Make described VOD server can determine whether to exist orthoflow to transmit the destination IP set-top box of the concrete VOD file of being asked; And
When having described destination IP set-top box, transmit the visit information of described destination IP set-top box to described request IP set-top box, and when not having destination IP set-top box, transmit the VOD file of being asked to described request IP set-top box streaming.
12, method according to claim 11, this method is further comprising the steps of:
When from the visit information of the described destination of described VOD Server Transport IP set-top box, make described request IP set-top box can visit described destination IP set-top box by the visit information that uses described destination IP set-top box; And
Transmit the part of the concrete VOD file of being asked that cushions by the destination IP set-top box of being visited from the destination IP set-top box streaming of being visited.
13, method according to claim 12, wherein said request IP set-top box transmit the remainder of the VOD file except the part of the VOD file that transmitted from the destination IP set-top box streaming of being visited from described VOD server streaming.
14, method according to claim 11, wherein when having a plurality of destinations IP set-top box, described VOD server transmits the visit information of described a plurality of destinations IP set-top box to described request IP set-top box.
15, method according to claim 14, wherein when the time from the visit information of the described a plurality of destinations of described VOD Server Transport IP set-top box, described request IP set-top box is visited described a plurality of destinations IP set-top box, streaming transmits the concrete VOD file of being asked, and consider at least one in service conditions, open/close state, failure condition and the transmission performance included in the visit information of described a plurality of destinations IP set-top box, control the stream ratio.
16, a kind of system that file is provided, this system comprises:
Be connected to a plurality of set-top box of network, and
The VOD server, whether it determines to exist in described a plurality of set-top box can provide the destination of the concrete VOD file of being asked IP set-top box, when having described destination IP set-top box, described VOD server transmits the visit information of described destination IP set-top box to described request IP set-top box, and when not having destination IP set-top box, the concrete VOD file that described VOD server is asked to the transmission of described request IP set-top box.
17, system according to claim 16, wherein said request IP set-top box visits described destination IP set-top box by using from the visit information of the described destination IP set-top box of described VOD Server Transport, and receives the concrete VOD file of being asked from the destination IP set-top box of being visited.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060111088 | 2006-11-10 | ||
| KR1020060111088A KR20080042524A (en) | 2006-11-10 | 2006-11-10 | Method and system for vod service based on p2p |
| KR1020060125042 | 2006-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101548279A true CN101548279A (en) | 2009-09-30 |
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ID=39649221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800451485A Pending CN101548279A (en) | 2006-11-10 | 2007-03-09 | Method and system for providing file |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20080042524A (en) |
| CN (1) | CN101548279A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256164A (en) * | 2011-07-12 | 2011-11-23 | 广州纳斯威尔信息技术有限公司 | Video transmission system based on IP (Internet Protocol) network |
| CN103209354A (en) * | 2012-01-17 | 2013-07-17 | 深圳市快播科技有限公司 | Data transmission method and data transmission system for set top box and set top box |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101040312B1 (en) * | 2009-04-07 | 2011-06-10 | 유희훈 | A system and method for providing a hybrids IP-TV service |
| KR101448124B1 (en) * | 2009-08-13 | 2014-10-08 | 에스케이플래닛 주식회사 | Contents sharing system and method among devices in community |
| KR101602760B1 (en) * | 2015-09-22 | 2016-03-21 | 선샤인 앱 인코포레이티드 | Method and apparatus for reducing cloud service traffic using p2p connection |
-
2006
- 2006-11-10 KR KR1020060111088A patent/KR20080042524A/en not_active Application Discontinuation
-
2007
- 2007-03-09 CN CNA2007800451485A patent/CN101548279A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256164A (en) * | 2011-07-12 | 2011-11-23 | 广州纳斯威尔信息技术有限公司 | Video transmission system based on IP (Internet Protocol) network |
| CN103209354A (en) * | 2012-01-17 | 2013-07-17 | 深圳市快播科技有限公司 | Data transmission method and data transmission system for set top box and set top box |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080042524A (en) | 2008-05-15 |
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