CN101860543B - Quick downloading method for large-data documents based on broadcasting television network and communication network - Google Patents
Quick downloading method for large-data documents based on broadcasting television network and communication network Download PDFInfo
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- CN101860543B CN101860543B CN201010198157A CN201010198157A CN101860543B CN 101860543 B CN101860543 B CN 101860543B CN 201010198157 A CN201010198157 A CN 201010198157A CN 201010198157 A CN201010198157 A CN 201010198157A CN 101860543 B CN101860543 B CN 101860543B
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Abstract
The invention relates to a quick downloading method for large-data documents based on a broadcasting television network and a communication network. The method comprises the steps of: (1) connection: accessing a PC terminal into a broadcasting television network through a set-top box, wherein the terminal of the set-top box is connected with a front servicing device through the broadcasting television network and the communication network, a downloading customer terminal is arranged in the PC terminal, the front servicing device comprises an user accessing managing submodule, a content managing submodule and a content distributing submodule, the content managing submodule stores document resources, and the content managing submodule is connected with an internet; (2) service requesting; (3) service responding; and (4) receiving: receiving the signal containing documents from the broadcasting television network by the set-top box, processing the signal and then sending the signal to the PC terminal. The invention has the advantages of simple and compact structure, low cost, simple realizing principle, easy implementation, great enhancement of downloading speed, and the like.
Description
Technical field
The present invention is mainly concerned with network communication field, refers in particular to a kind of method for down loading of large-data documents.
Background technology
Along with continuous progress in science and technology, computer and network technology thereof are able to popularize in people's common life, and people hope to obtain the network of fast speed, especially when downloading large-data documents for the also constantly upgrading of demand of network speed.Being that the higher video file of people's frequency of utilization is an example in the large-data documents; The gradually solution of technical barrier under the fast development of broadcast television technique and computer technology along with high-quality film; The user is increasingly high to the quality requirement of video, and the high-definition digital life has become the new trend that the consumer pursues.
See that from technological layer broadcast television technique and development of computer have brought high-definition movie, the extensive of 3D film to popularize, and make that the data volume of data file is increasing.Common SD film has 100,000,000 grade data amounts at least, and the data volume of high-definition movie also all is in the G order of magnitude, and data volume is very huge.At present, obtaining of large-data documents mainly obtained through broadband network or VOD video request program realization.Through the online of broadbands such as telecommunications and Netcom, domestic consumer's bandwidth is only at 2-10M, and average bandwidth is merely 4M, and this has influenced the acquisition speed of large-data documents to a great extent.And, because the user is numerous, cause the communication network load excessive, network data is blocked up and can't bear, and downloads the large data files difficulty.The VOD video request program be divided into based on the VOD of DVB/HFC technology with based on two kinds of the VOD of IPTV/LAN technology.IPTV VOD scheme is faced with the limited problem of the network bandwidth equally; HFC VOD scheme is supported very difficulty of Streaming Media VOD in the hfc plant that present domestic employing CMTS transforms on Cable; When having only bidirectional rebuilding to adopt the lan network of building separately; Just possibly support Streaming Media VOD, and VOD can only realize video request program and can't resource downloading be arrived local storage.
Can address the above problem to a certain extent though Fiber to the home, by the immediate objective of China, Fiber to the home can only realize the average 8M of urban subscriber, the average 2M broadband access of rural subscribers ability, and speed of download improves and be not obvious.Compared to communication network; The HFC net backbone network of broadcasting and TV is the high power capacity optical networking, adopts optical fibre-coaxial cable to mix to user side; Have advantages such as frequency resource is abundant, customer volume is big, broad covered area; It can realize the speed propelling data of the about 96Mbps of single-frequency point per second under certain modulation system, be tens of times of communication network speed of download.Therefore, on the basis of existing Cable Network network, realize IP over DVB technology, can not only solve transmission rate issues, save user's time and efforts greatly, and can effectively reduce cost, technical application is simple.
Summary of the invention
The technical problem that the present invention will solve just is: to the technical problem that prior art exists, the present invention provide a kind of simple and compact for structure, with low cost, realize that principle is simple, implement easily, can improve greatly the quick downloading method for large-data documents based on broadcasting and television network and communication network of speed of download.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of quick downloading method for large-data documents based on broadcasting and television network and communication network is characterized in that, step is:
(1), connects: broadcasting and television network is inserted through STB terminal in the PC terminal; Said STB terminal links to each other with the front end services device with communication network through broadcasting and television network; Said PC is built-in with download client on the terminal; Said front end services device comprises user access administration submodule, Content Management submodule and content distribution submodule, stores file resource on the said Content Management submodule, and said Content Management submodule links to each other with the Internet;
(2), request service: the user sends the services request of file in download through the download client in the PC terminal, and said services request is sent to the front end services device through STB terminal and communication network;
(3), respond services: the user access administration submodule receives and resolves the pairing user instruction of above-mentioned services request, and carries out authentication according to the user's information that is comprised in the user instruction; Authentication is searched the user according to user's request and is asked downloaded files after finishing in the Content Management submodule, if the required file of user is arranged in the Content Management submodule, then this file is sent to content distribution submodule; If there is not the required file of user in the Content Management submodule, then through sending it to content distribution submodule after loading internet document is in the Content Management submodule again; Said content distribution submodule is handled the back to file and is sent to STB terminal through broadcasting and television network;
(4), receive: STB terminal receives the signal of include file on the net from radio and television, sends the PC terminal after treatment.
As further improvement of the present invention:
In the said step (3), content distribution submodule to the processing of file comprise encryption, for the user distributes frequency and program code PID, and the file encapsulation after will encrypting, modulation are after broadcasting and television network is distributed to STB terminal.
In the said step (4); STB terminal receives the signal that transmits through broadcasting and television network through tuner; According to the frequency that is distributed and program code with signal demodulation, demultiplexing, filter out the TS bag according to PID; And TS bag directly is packaged into the IP packet sends to the PC terminal, after said PC terminal receives the IP packet, the IP packet wrapped with TS carry out decapsulation.The idiographic flow of said step (4) is:
4.1, STB terminal create to send thread;
4.2, send thread and read and specify number the TS stream packets, and add TCP header packet information, IP header, frame head and postamble information, form complete data frame;
4.3, send thread and send data;
4.4, judge to send and whether to accomplish, accomplish then jumping to step 4.6;
4.5, whether judges withdraws from download, is then to jump to step 4.6; Otherwise jump to step 4.2;
4.6, the end process, stop to send, withdraw from download;
4.7, the PC terminal receives the IP packet;
4.8, the IP packet is carried out decapsulation: remove frame head and postamble information, IP header, TCP header, reduction TS bag data;
4.9, single TS bag is carried out decapsulation: remove the TS header packet information, obtain initial data;
4.10, initial data is formed data queue, be stored as file.
In the said step (4); STB terminal receives the signal that transmits through broadcasting and television network through tuner; According to the frequency that is distributed and program code with signal demodulation, demultiplexing, filter out the TS bag according to PID; And the data encapsulation that TS is wrapped after the decapsulation becomes the IP packet to send to the PC terminal, after said PC terminal receives the IP packet, the IP packet carried out decapsulation.The idiographic flow of said step (4) is:
4.1, STB terminal create to send thread;
4.2, send thread and from cyclic buffer, read and specify number the TS stream packets;
4.3, send thread and each TS packet data is removed after the TS packet header information its storage seted out send buffering area;
4.4, send thread and read the cyclic buffer data, add TCP header packet information, IP header, frame head and postamble information, form complete IP Frame;
4.5, send thread and send data;
4.6, judge to send and whether to accomplish, accomplish then jumping to step 4.8;
4.7, whether judges withdraws from download, is then to jump to step 4.8; Otherwise jump to step 4.2;
4.8, the end process, stop to send, withdraw from download;
4.9, the PC terminal receives the IP packet;
4.10, the IP packet is carried out decapsulation: remove frame head and postamble information, IP header, TCP header, obtain initial data;
4.11, initial data is formed data queue, be stored as file.
Link to each other through WLAN or cable LAN between said PC terminal and the STB terminal.
Said communication network is wireless network or wired network.
Compared with prior art, the invention has the advantages that:
1, the present invention is based on STB terminal, utilize the high bandwidth of broadcasting and television network to carry out the download of large-data documents; Have simple and compact for structure, with low cost, realize that principle is simple, can improve advantage such as speed of download greatly; It is excessive to efficiently solve present conventional communication network load; Network data is blocked up and can't bear, and large data files is downloaded the problem of difficulty, has saved user's time and efforts simultaneously greatly.
2, the present invention can also utilize front end services device unified management software and film; All adopt copyrighted software and legal high definition film; And the user helps copyright protection through obtaining from the front end service unit or onlinely from the Internet obtaining or obtain digital certificate through other modes and use to download large-data documents.
3, the present invention can also make full use of existing communication network and cable television network through to the unified management and the download of large-data documents, and implementation cost is low, and is applied widely, be easy to promote.
4, the present invention links to each other the PC terminal with STB terminal, realizes that through communication network instruction is up, realize data downstream through broadcasting and television network, thereby realizes the quick-downloading of large-data documents, has made full use of the bandwidth resources of broadcasting and television network.
5, STB terminal is connected with the PC terminal among the present invention; Realize the download of large-data documents through communication network and broadcasting and television network; Make STB terminal insert communication network; Simultaneously also make the PC terminal insert broadcasting and television network, the co-ordination under two net environment of STB terminal and PC terminal has met the overall background of the national integration of three networks.
Description of drawings
Fig. 1 is the schematic flow sheet of the inventive method;
Fig. 2 is that STB terminal is directly sealed TS and dressed up the IP packet and send to the PC terminal and the schematic flow sheet of the handling process of data is received in the PC end-on in the specific embodiment of the invention;
Fig. 3 is that STB terminal wraps TS decapsulation and becomes transmission of IP packet and PC end-on to receive the handling process sketch map of data the data encapsulation after the decapsulation in the specific embodiment of the invention;
Fig. 4 is the structural framing sketch map of the quick-downloading system of the present invention;
Fig. 5 is the structural representation of quick-downloading system in the specific embodiment of the invention;
Fig. 6 is the frame structure sketch map of STB terminal in the specific embodiment.
Marginal data:
1, PC terminal; 2, STB terminal; 3, front end services device; 31, user access administration submodule; 32, Content Management submodule; 33, content distribution submodule; 4, broadcasting and television network; 5, the Internet; 6, communication network.
Embodiment
Below will combine Figure of description and specific embodiment that the present invention is explained further details.
As shown in Figure 1, the invention discloses a kind of quick downloading method for large-data documents based on broadcasting and television network and communication network, the steps include:
(1), connects: broadcasting and television network 4 is inserted through STB terminal 2 in PC terminal 1; STB terminal 2 links to each other with front end services device 3 with communication network 6 through broadcasting and television network 4; Be built-in with download client on the PC terminal 1; Front end services device 3 comprises user access administration submodule 31, Content Management submodule 32 and content distribution submodule 33; Store file resource on the Content Management submodule 32, promptly this Content Management submodule 32 is a home server resource pool, wherein stores the higher resource of user's video-on-demand times; Content Management submodule 32 links to each other with the Internet 5, can be from the Internet 5 obtains file resource; Wherein, link to each other through WLAN or cable LAN between PC terminal 1 and the STB terminal 2, can realize through the mode of twisted-pair feeder or wireless wifi.
(2), request service: the user sends the services request of file in download through the download client in the PC terminal 1, and services request is sent to front end services device 3 through STB terminal 2;
(3), respond services: preset user data in the user access administration submodule 31, be used for receiving and resolving the pairing user instruction of above-mentioned services request, and carry out authentication according to the user's information that is comprised in the user instruction; Authentication is searched the user according to user's request and is asked downloaded files after finishing in Content Management submodule 32, if the required file of user is arranged in the Content Management submodule 32, then this file is sent to content distribution submodule 33; If there is not the required file of user in the Content Management submodule 32; Send it to content distribution submodule 33 after then downloading the file in the Content Management submodule 32 through the Internet 5 again, Content Management submodule 32 can also change the live telecast program into file storage through the program decoding; 33 pairs of files of content distribution submodule are handled the back and are sent to STB terminal 2 through broadcasting and television network 4.STB terminal 2 among the present invention provides the download of large-data documents except that supporting, can also provide traditional DTV to watch function.
The requirement of STB terminal 2 major functions is to receive the decodes and plays function except that satisfying the common radiofrequency signal of STB in the quick-downloading system of the large-data documents of the embodiment of the invention; Also to possess and broadband internet, communication network, wireless or cable LAN communication function, need be preset with the corresponding interface.At present existing multiple bi-directional set-top box has this class interface, possesses these functions, can support this type of application.The STB that " has the stb controller that carries out the transmitted in both directions function with the value-added service server " and propose such as patent 200920063798.9 has been entirely the utility model provides hardware foundation.Therefore the hardware of STB terminal 2 is not implemented to elaborate at this.
(4), receive: STB terminal 2 receives the signal that comprises large-data documents from broadcasting and television network 4, sends PC terminal 1 after treatment.
In step (3), the processing of 33 pairs of files of content distribution submodule comprises encryption, for the user distributes frequency and program code PID, and the file encapsulation after will encrypting, modulation are after broadcasting and television network 4 is distributed to STB terminal 2.
Referring to Fig. 2; In step (4); STB terminal 2 receives the signal that transmits through broadcasting and television network 4 through tuner,, and TS wrapped directly is packaged into the IP packet and sends to PC terminal 1 with signal demodulation, demultiplexing, filter out the TS bag according to PID according to the frequency that is distributed and program code; After PC terminal 1 receives the IP packet, IP packet and TS bag are carried out decapsulation.The idiographic flow of this mode is:
4.1, STB terminal 2 creates and sends threads;
4.2, send thread and read and specify number the TS stream packets, and add TCP header packet information, IP header, frame head and postamble information, form complete data frame;
4.3, send thread and send data;
4.4, judge to send and whether to accomplish, accomplish then jumping to step 4.6;
4.5, whether judges withdraws from download, is then to jump to step 4.6; Otherwise jump to step 4.2;
4.6, the end process, stop to send, withdraw from download;
4.7, PC terminal 1 receives the IP packet;
4.8, the IP packet is carried out decapsulation: remove frame head and postamble information, IP header, TCP header, reduction TS bag data;
4.9, single TS bag is carried out decapsulation: remove the TS header packet information, obtain initial data;
4.10, initial data is formed data queue, be stored as file.
Referring to Fig. 3; In a further embodiment; Step (4) also can be STB terminal 2 and receives the signal that transmits through broadcasting and television network 4 through tuner, according to the frequency that is distributed and program code with signal demodulation, demultiplexing, filter out TS according to PID and wrap, and the data encapsulation that TS is wrapped after the decapsulation becomes the IP packet to send to PC terminal 1; After PC terminal 1 receives the IP packet, the IP packet is carried out decapsulation.In this embodiment, its idiographic flow is:
4.1, STB terminal 2 creates and sends threads;
4.2, send thread and from cyclic buffer, read and specify number the TS stream packets;
4.3, send thread and each TS packet data is removed after the TS packet header information its storage seted out send buffering area;
4.4, send thread and read the cyclic buffer data, add TCP header packet information, IP header, frame head and postamble information, form complete IP Frame;
4.5, send thread and send data;
4.6, judge to send and whether to accomplish, accomplish then jumping to step 4.8;
4.7, whether judges withdraws from download, is then to jump to step 4.8; Otherwise jump to step 4.2;
4.8, the end process, stop to send, withdraw from download;
4.9, PC terminal 1 receives the IP packet;
4.10, the IP packet is carried out decapsulation: remove frame head and postamble information, IP header, TCP header, obtain initial data;
4.11, initial data is formed data queue, be stored as file.
The present invention realizes through a kind of quick-downloading system; Like Fig. 4, Fig. 5 and shown in Figure 6; Comprise PC terminal 1, STB terminal 2 and front end services device 3; Broadcasting and television network 4 is inserted through STB terminal 2 in PC terminal 1; STB terminal 2 links to each other with front end services device 3 with communication network 6 through broadcasting and television network 4, is built-in with download client on the PC terminal 1, and STB terminal 2 is used for sending user's request, receives and handle file signal, sends a signal to PC terminal 1; Front end services device 3 comprises user access administration submodule 31, Content Management submodule 32 and content distribution submodule 33; User access administration submodule 31 is used for receiving and resolves user instruction, stores file resource and Content Management submodule 32 on the Content Management submodule 32 and links to each other with the Internet 5, and content distribution submodule 33 is used for the file transmission that the user is required and sends STB terminal 2 to through broadcasting and television network 4.Wherein, link to each other through WLAN or cable LAN between PC terminal 1 and the STB terminal 2.Communication network 6 is wired or wireless communication network.
In the present embodiment; User access administration submodule 31 comprises access server, Subscriber Management System, back-stage management platform; User access administration submodule 31 is mainly used in and receives user profile and user's download request, and the user is carried out authentication and user's interpolation, deletion.Content Management submodule 32 comprises content storage system, data connected system, program decode system, system library, and large-data documents is managed.Content distribution submodule 33 comprises content distributing server, EPG server, encryption server, scrambling modulation server, is used for encryption, distribution, scrambling, modulation, transmission to issuing the documents.
Wherein each systemic-function is following:
Access server: receive user profile and user's request is handled;
Subscriber Management System: managing user information, the legitimacy of user identity is verified;
The back-stage management platform: to all devices in the front end services device or system carry out unified management, scheduling makes it collaborative work;
The data connected system: be responsible for connecting outer net, enrich data resource, if the required file of no user in the local resource pond, then this system is connected to outer net and downloads associated documents;
Content storage system: file storage;
The program decode system: to digital TV contents decode, recording and storing is in this locality;
System library: the data resource of storing in the content storage system is carried out index think that retrieval is used;
Encryption server: the data to output file are encrypted scrambling;
EPG server: play content is increased EPG information;
Content distributing server: responsible content is broadcast;
The scrambling modulating system: the TS flow data to playing carries out scrambling and modulation.
In the present embodiment; STB terminal 2 mainly comprises CPU, communication unit, television signal decoder unit, data interaction unit and video and audio output unit; The television signal decoder unit is used for receiving data from broadcasting and television network 4 and is sent to CPU, and CPU sends to data PC terminal 1 or exports television equipment to through local area network (LAN) through the data interaction unit.CPU is through the transmission of communication unit or data interaction unit and communication network 6 realization user's download requests and user profile.It is that CPU installs the software realization that satisfies the demands additional that STB terminal 2 becomes the IP data to send to PC terminal 1 through local area network (LAN) the data encapsulation that receives in the broadcasting and television network 4, and realizes through the data interaction unit.The data interaction unit is provided with interfaces such as Ethernet, bluetooth, serial ports; Ethernet protocol controller, universal asynchronous serial protocol controller are arranged; Universal serial bus protocol controller, Bluetooth protocol controller, I2C bus protocol controller have the function of supporting multiple interfaces and agreement.
In the present embodiment, it is to receive the decodes and plays function except that satisfying the common radiofrequency signal of STB that STB terminal 2 major functions require, and also will possess and broadband internet, communication network, wireless or cable LAN communication function, need be preset with the corresponding interface.At present existing multiple bi-directional set-top box has this class interface, possesses these functions, can support this type of application.The STB that " has the stb controller that carries out the transmitted in both directions function with the value-added service server " and propose such as patent 200920063798.9 has been entirely the utility model provides hardware foundation.Therefore the hardware of STB terminal 2 is not implemented to elaborate at this.
Below only be preferred implementation of the present invention, protection scope of the present invention also not only is confined to the foregoing description, and all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art some improvement and retouching not breaking away under the principle of the invention prerequisite should be regarded as protection scope of the present invention.
Claims (6)
1. the quick downloading method for large-data documents based on broadcasting and television network and communication network is characterized in that, step is:
(1), connects: broadcasting and television network is inserted through STB terminal in the PC terminal; Said STB terminal links to each other with the front end services device with communication network through broadcasting and television network; Said PC is built-in with download client on the terminal; Said front end services device comprises user access administration submodule, Content Management submodule and content distribution submodule, stores file resource on the said Content Management submodule, and said Content Management submodule links to each other with the Internet;
(2), request service: the user sends the services request of file in download through the download client in the PC terminal, and said services request is sent to the front end services device through STB terminal and communication network;
(3), respond services: the user access administration submodule receives and resolves the pairing user instruction of above-mentioned services request, and carries out authentication according to the user's information that is comprised in the user instruction; Authentication is searched the user according to user's request and is asked downloaded files after finishing in the Content Management submodule, if the required file of user is arranged in the Content Management submodule, then this file is sent to content distribution submodule; If there is not the required file of user in the Content Management submodule, then through sending it to content distribution submodule after loading internet document is in the Content Management submodule again; Said content distribution submodule is handled the back to file and is sent to STB terminal through broadcasting and television network;
(4), receive: STB terminal receives the signal of include file on the net from radio and television, sends the PC terminal after treatment;
In the said step (3), content distribution submodule to the processing of file comprise encryption, for the user distributes frequency and program code PID, and the file encapsulation after will encrypting, modulation are after broadcasting and television network is distributed to STB terminal;
In the said step (4); STB terminal receives the signal that transmits through broadcasting and television network through tuner; According to the frequency that is distributed and program code with signal demodulation, demultiplexing, filter out the TS bag according to PID; And TS bag directly is packaged into the IP packet sends to the PC terminal, after said PC terminal receives the IP packet, the IP packet wrapped with TS carry out decapsulation;
The idiographic flow of said step (4) is:
4.1, STB terminal create to send thread;
4.2, send thread and read and specify number the TS stream packets, and add TCP header packet information, IP header, frame head and postamble information, form complete data frame;
4.3, send thread and send data;
4.4, judge to send and whether to accomplish, accomplish then jumping to step 4.6;
4.5, whether judges withdraws from download, is then to jump to step 4.6; Otherwise jump to step 4.2;
4.6, the end process, stop to send, withdraw from download;
4.7, the PC terminal receives the IP packet;
4.8, the IP packet is carried out decapsulation: remove frame head and postamble information, IP header, TCP header, reduction TS bag data;
4.9, single TS bag is carried out decapsulation: remove the TS header packet information, obtain initial data;
4.10, initial data is formed data queue, be stored as file.
2. the quick downloading method for large-data documents based on broadcasting and television network and communication network according to claim 1 is characterized in that: link to each other through WLAN or cable LAN between said PC terminal and the STB terminal.
3. the quick downloading method for large-data documents based on broadcasting and television network and communication network according to claim 1 is characterized in that: said communication network is wireless network or wired network.
4. the quick downloading method for large-data documents based on broadcasting and television network and communication network is characterized in that, step is:
(1), connects: broadcasting and television network is inserted through STB terminal in the PC terminal; Said STB terminal links to each other with the front end services device with communication network through broadcasting and television network; Said PC is built-in with download client on the terminal; Said front end services device comprises user access administration submodule, Content Management submodule and content distribution submodule, stores file resource on the said Content Management submodule, and said Content Management submodule links to each other with the Internet;
(2), request service: the user sends the services request of file in download through the download client in the PC terminal, and said services request is sent to the front end services device through STB terminal and communication network;
(3), respond services: the user access administration submodule receives and resolves the pairing user instruction of above-mentioned services request, and carries out authentication according to the user's information that is comprised in the user instruction; Authentication is searched the user according to user's request and is asked downloaded files after finishing in the Content Management submodule, if the required file of user is arranged in the Content Management submodule, then this file is sent to content distribution submodule; If there is not the required file of user in the Content Management submodule, then through sending it to content distribution submodule after loading internet document is in the Content Management submodule again; Said content distribution submodule is handled the back to file and is sent to STB terminal through broadcasting and television network;
(4), receive: STB terminal receives the signal of include file on the net from radio and television, sends the PC terminal after treatment;
In the said step (3), content distribution submodule to the processing of file comprise encryption, for the user distributes frequency and program code PID, and the file encapsulation after will encrypting, modulation are after broadcasting and television network is distributed to STB terminal;
In the said step (4); STB terminal receives the signal that transmits through broadcasting and television network through tuner; According to the frequency that is distributed and program code with signal demodulation, demultiplexing, filter out the TS bag according to PID; And the data encapsulation that TS is wrapped after the decapsulation becomes the IP packet to send to the PC terminal, after said PC terminal receives the IP packet, the IP packet carried out decapsulation;
The idiographic flow of said step (4) is:
4.1, STB terminal create to send thread;
4.2, send thread and from cyclic buffer, read and specify number the TS stream packets;
4.3, send thread and each TS packet data is removed after the TS packet header information its storage seted out send buffering area;
4.4, send thread and read the cyclic buffer data, add TCP header packet information, IP header, frame head and postamble information, form complete IP Frame;
4.5, send thread and send data;
4.6, judge to send and whether to accomplish, accomplish then jumping to step 4.8;
4.7, whether judges withdraws from download, is then to jump to step 4.8; Otherwise jump to step 4.2;
4.8, the end process, stop to send, withdraw from download;
4.9, the PC terminal receives the IP packet;
4.10, the IP packet is carried out decapsulation: remove frame head and postamble information, IP header, TCP header, obtain initial data;
4.11, initial data is formed data queue, be stored as file.
5. the quick downloading method for large-data documents based on broadcasting and television network and communication network according to claim 4 is characterized in that: link to each other through WLAN or cable LAN between said PC terminal and the STB terminal.
6. the quick downloading method for large-data documents based on broadcasting and television network and communication network according to claim 4 is characterized in that: said communication network is wireless network or wired network.
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| CN102006516B (en) * | 2010-10-18 | 2013-07-24 | 中山大学 | Digital household content service transmission method based on cable television two-way access |
| CN102368763A (en) * | 2011-09-09 | 2012-03-07 | 北京东方网信科技股份有限公司 | Three-network amalgamation method and system |
| CN102523485B (en) * | 2011-12-19 | 2014-06-18 | 深圳市龙视传媒有限公司 | Information distribution method and system |
| CN104093086A (en) * | 2014-06-10 | 2014-10-08 | 惠州市水木网络科技有限公司 | Video-on-demand system and method based on bidirectional set top box |
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|---|---|---|---|---|
| CN101212599A (en) * | 2006-12-31 | 2008-07-02 | 深圳市同洲电子股份有限公司 | Digital TV user interface management system and method |
| CN101355640A (en) * | 2008-09-11 | 2009-01-28 | 敖发良 | Multi-display digital television set-top box |
| CN101467449A (en) * | 2006-04-06 | 2009-06-24 | 肯尼思·H·弗格森 | Media content programming control method and apparatus |
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| CN101953161A (en) * | 2007-12-21 | 2011-01-19 | 赛兹米公司 | The antenna system and the video delivery unit of networking |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101467449A (en) * | 2006-04-06 | 2009-06-24 | 肯尼思·H·弗格森 | Media content programming control method and apparatus |
| CN101212599A (en) * | 2006-12-31 | 2008-07-02 | 深圳市同洲电子股份有限公司 | Digital TV user interface management system and method |
| CN101355640A (en) * | 2008-09-11 | 2009-01-28 | 敖发良 | Multi-display digital television set-top box |
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