CN102970581A - Data transmission method, device and system for digital television - Google Patents
Data transmission method, device and system for digital television Download PDFInfo
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Abstract
The embodiment of the invention discloses a data transmission method, a device and a system for a digital television, and belongs to the communication field. The user is prevented from frequently switching a video supply platform system in the watching process, so that the processing load of a set top box is reduced. The method comprises the following steps: receiving a network information table sent by a network protocol television platform and transmitting a TS formulated channel list by a digital video broadcasting platform, wherein the network information table comprises frequency point information comprising the channel list; and sending a document pack to the set top box through a satellite according to the frequency point information, wherein the document pack comprises the channel list and the network information table, so that the set top box obtains the channel data in the channel list according to the frequency point information in the network information table. The invention is applied to data transmission for televisions.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of digital TV data transmission method, device and system.
Background technology
Now, TV information mainly is to be propagated by digital video broadcasting (Digital Video Broadcasting is called for short DVB) and network protocol television (Internet Protocol Television is called for short IPTV).Difference according to transmission means and modulation system, the DVB system can be divided into DVB-S (Digital Video Broadcasting-Satellite, digital video broadcast-satellite) system, DVB-T (Digital Video Broadcasting-Terrestrial, the terrestrial wireless digital television broadcasting) system, DVB-C (Digital Video Broadcasting-Cable, Digital Television wired broadcasting) system and DVB-H (Digital Video Broadcasting-Handheld, mobile TV) system.Because the broad covered area of satellite, and the program capacity is large, so mainly select now the DVB-S system to transmit.And IPTV is a kind of system that is used as the medium transfer TV information with broadband network, agreement (the Internet Protocol of interconnection between Network Based, be called for short IP) transmit, as long as bandwidth is enough, can in all IP network, transmits also and can support multiple business.IPTV not only can propagate TV information, can also dock with all based on network platforms, such as chat, video monitoring, TV shopping, TV interaction etc.On service provides, the channel that DVB can provide nearly all user to need; IPTV then can provide the business based on clean culture, such as video on demand techniques (Video On Demand, abbreviation VOD), real-time video program request (True Video On Demand, abbreviation TVOD), network video (Network Recording, be called for short NPVR) etc., and mutual open the Internet TV (Over the top TV is called for short OTT TV) business.As required, operator also can provide channel service in IP network.So mixing multi-module machine top box occurred, this set-top box can receive the data of IPTV and DVB simultaneously, and in this mixing multi-module machine top box, the system that receives the IPTV data is autonomous system with the system that receives the DVB data.
In the process that receives by above-mentioned mixing multi-module machine top box realization information, the inventor finds that there is following problem at least in prior art:
Because the DVB that existing mixing multi-module machine top box provides is professional and the IPTV business is separate; therefore when the user watches video; if the user is provided by the program data of watching IPTV system and DVB system to provide; then must switch IPTV system and DVB system frequently, thereby the processing that has increased set-top box is loaded.
Summary of the invention
Embodiments of the invention provide a kind of digital TV data transmission method, device and system, can avoid the user continually video supply system system to be switched in the television-viewing process, thereby have reduced the processing load of set-top box.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect provides a kind of digital TV data transmission method, comprising:
The channel list of the network information table that digital video broadcasting platform receiving network protocol TV platform sends and transport stream TS format, described network information table comprises the frequency point information of described channel list;
According to described frequency point information via satellite to set-top box Transmit message bag, described file bag comprises described channel list and described network information table, so that described set-top box according to the frequency point information in the described network information table, is obtained the channel data in the described channel list.
In the possible implementation of the first, in conjunction with first aspect, described digital video broadcasting platform receives the channel list of the described TS format of described network protocol television platform transmission, comprise: described digital video broadcasting platform receives the channel list of the described TS format of described network protocol television platform transmission, and the channel list of described TS format is obtained by the format of channel list generator.
In the possible implementation of the second, in conjunction with first aspect, described according to described frequency point information via satellite to set-top box Transmit message bag, described file bag comprises described channel list and described network information table, so that described set-top box is according to the frequency point information in the described network information table, obtain the channel data in the described channel list, comprising:
Distribute program identification to described channel list, and in described frequency point information, choose the transmission frequency, described program identification and described transmission frequency are deposited in the described network information table;
Mode by frequency division multiplexing, the file bag that will comprise described channel list and described network information table on described transmission frequency is sent to described set-top box by described satellite, so that described set-top box is obtained the channel data in the described channel list according to described transmission frequency and described program identification in the described network information table.
In the third possible implementation, in conjunction with first aspect or possible implementation or the possible implementation of the second of the first, specifically comprise: described channel list comprises the channel list of described network protocol television platform and the channel list of described digital video broadcasting platform.
Second aspect provides a kind of digital TV data transmission method, comprising:
The file bag that set-top box receiving digital video broadcast platform sends via satellite, described file bag comprises channel list and network information table, and described network information table comprises the frequency point information of described channel list;
Resolve described file bag, obtain described network information table and described channel list, according to the frequency point information in the described network information table, obtain the channel data in the described channel list.
In the possible implementation of the first, according to second aspect, described network information table also comprises program identification, and is then described according to the frequency point information in the described network information table, obtains the channel data in the described channel list, comprising:
Lock the transmission frequency in the described frequency point information, described transmission frequency is arranged in the described frequency point information of described network information table, and obtain program identification in the described network information table, according to described program identification, in described channel list, parse expandable mark language XML file corresponding to described program identification;
According to the described channel data of described XML file acquisition.
The third aspect provides a kind of digital video broadcasting platform, comprising:
The data receiver unit is used for the network information table of receiving network protocol TV platform transmission and the channel list of transport stream TS format, and described network information table comprises the frequency point information of described channel list;
The file transmitting element, be used for the described frequency point information of the described network information table that receives according to described data receiver unit via satellite to set-top box Transmit message bag, described file bag comprises described channel list and described network information table, so that described set-top box according to the frequency point information in the described network information table, is obtained the channel data in the described channel list.
In the possible implementation of the first, according to the third aspect, specifically for the channel list of the described TS format that receives described network protocol television platform transmission, the channel list of described TS format is obtained by the format of channel list generator in described data receiver unit.
In the possible implementation of the second, according to the third aspect, described file transmitting element comprises:
Information collocation module is used for distributing program identification to described channel list, and chooses the transmission frequency in described frequency point information, and described program identification and described transmission frequency are deposited in the described network information table;
The file Multiplexing module, be used for the mode by frequency division multiplexing, the file bag that will comprise described channel list and described network information table on described transmission frequency is sent to described set-top box by described satellite, so that described set-top box is obtained the channel data in the described channel list according to described transmission frequency and described program identification in the described network information table.
In the third possible implementation, in conjunction with the third aspect or possible implementation or the possible implementation of the second of the first, described channel list comprises the channel list of described network protocol television platform and the channel list of described digital video broadcasting platform.
Fourth aspect provides a kind of set-top box, and described set-top box also comprises:
The data receiver unit is used for the file bag that the receiving digital video broadcast platform sends via satellite, and described file bag comprises channel list and network information table, and described network information table comprises the frequency point information of described channel list;
The Data Analysis unit is used for resolving the described file bag that described data receiver unit receives, and obtains described network information table and described channel list, according to the frequency point information in the described network information table, obtains the channel data in the described channel list.
In the possible implementation of the first, according to fourth aspect, described network information table also comprises program identification, and then described Data Analysis unit comprises:
Data resolution module is used for resolving the described file bag that described data receiver unit receives, and obtains described channel list and described network information table;
The locking frequency point module, be used for locking the transmission frequency of the described network information table that described data resolution module parses, described transmission frequency is arranged in the described frequency point information of described network information table, and obtain program identification in the described network information table, according to described program identification, in the described channel list that described data resolution module parses, parse expandable mark language XML file corresponding to described program identification;
The channel data acquisition module is used for the described channel data of described XML file acquisition that goes out according to described locking frequency point module parses.
The 5th aspect, a kind of digital TV data transmission system is provided, comprise network protocol television platform, digital video broadcasting platform, satellite transmitting apparatus, satellite, satellite receiving equipment and set-top box, described digital video broadcasting platform is above-mentioned arbitrary digital video broadcasting platform; Described set-top box is above-mentioned arbitrary set-top box.
In the possible implementation of the first, according to the 5th aspect, described digital TV data transmission system also comprises: the channel list data generator.
Digital TV data transmission method, device and system that embodiments of the invention provide, send the channel list that generates according to the network protocol television platform to the user by the digital video broadcasting platform, can avoid the user in the television-viewing process, continually video supply system system to be switched, thereby reduce the processing load of set-top box.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of a kind of digital TV data transmission system that Fig. 1 provides for the embodiment of the invention;
A kind of digital TV data transmission method that Fig. 2 provides for the embodiment of the invention is at the schematic flow sheet of digital video broadcasting platform side;
The another kind of digital TV data transmission method that Fig. 3 provides for the embodiment of the invention is at the schematic flow sheet of set-top box side;
The schematic flow sheet of a kind of digital video broadcasting platform that Fig. 4 provides for the embodiment of the invention;
The structural representation of a kind of digital video broadcasting platform that Fig. 5 provides for the embodiment of the invention;
The structural representation of a kind of set-top box that Fig. 6 provides for the embodiment of the invention;
The structural representation of a kind of digital video broadcasting platform that Fig. 7 provides for another embodiment of the present invention;
The structural representation of a kind of set-top box that Fig. 8 provides for another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Certainly embodiments of the invention are mainly used in the digital TV data transmission, below the digital video broadcasting platform, the network protocol television platform that provide among each embodiment can be the webserver that corresponding function can be provided of being disposed by operator.
As shown in Figure 1, the system architecture diagram that a kind of digital TV data that provides for the embodiment of the invention transmits.Wherein, digital TV data transmission system 1 comprises: network protocol television platform 11, digital video broadcasting platform 12, satellite transmitting apparatus 13, satellite 14, satellite receiving equipment 15 and set-top box 16, this digital video broadcasting platform 12 are the arbitrary digital video broadcasting platform 12 among the following embodiment; Set-top box 16 is the arbitrary set-top box 16 among the following embodiment.
In the present invention, the channel list that digital video broadcasting platform 12 sends by receiving network protocol TV platform 11, and by communication apparatus (satellite transmitting apparatus 13, satellite 14 and satellite receiving equipment 15) on selected transmission frequency, this channel list is forwarded to set-top box 16, can comprise the channel list of network protocol television platform 11 and the channel list of digital video broadcasting platform 12 in this channel list, this moment, set-top box 16 can directly determine to watch channel from the channel data that digital video broadcasting platform 12 navigates to needs then according to program identification corresponding to this channel list, here be the brief description to the system architecture of digital TV data transmission provided by the invention, concrete network protocol television platform 11 and the data processing method of set-top box 16 and formation repeat no more here with reference to following embodiment.Optionally, as shown in fig. 1, TS (Transport Stream, transport stream) channel list of format can directly be sent to digital video broadcasting platform 12 along the path shown in the dotted line by network protocol television platform 11, also can be as shown in Figure 1, digital TV data transmission system 1 also comprises channel list data generator 17, by being sent to digital video broadcasting platform 12 after the channel list transport stream TS format of this channel list data generator 17 with 11 transmissions of network protocol television platform.
The digital TV data transmission system that embodiments of the invention provide, send the channel list that generates according to the network protocol television platform to the user by the digital video broadcasting platform, can avoid the user in the television-viewing process, continually video supply system system to be switched, thereby reduce the processing load of set-top box.
Based on the system architecture diagram of digital TV data transmission shown in Figure 1, the embodiment of the invention discloses a kind of digital TV data transmission method, and as shown in Figure 2, the method is applied to the digital video broadcasting platform side, and the method comprises the steps:
201, the channel list of the network information table of digital video broadcasting platform receiving network protocol TV platform transmission and TS format, this network information table comprises the frequency point information of channel list.
Optionally, the channel list here comprises the channel list of network protocol television platform and the channel list of digital video broadcasting platform, wherein channel list is by extend markup language (Extensible Markup Language, be called for short XML) the file description, the XML file not only can be described the channel of digital video broadcasting platform, also can describe simultaneously the channel of network protocol television platform, can realize the mixing of the channel of the channel of digital video broadcasting platform and network protocol television platform.The frequency point information that is understandable that channel list is frequency point information corresponding to each channel in the channel list, such as frequency, symbol rate, the characteristic parameter such as polarised direction and modulation system, set-top box just can be logged on to a TV channel according to frequency point information corresponding to each channel like this, be that different channels uses the frequency point information with different characteristic parameter as the transmission frequency, with data according to the modulation system in the frequency point information, symbol rate and polarised direction are transmitted in the frequency of this frequency point information appointment, set-top box just can be obtained transmission frequency corresponding to this channel and upload defeated data, certainly the data here can be for comprising channel list and network information list file bag in the embodiment of the invention, can certainly be program data, if program data then comprises the voice data that program is corresponding, video data etc.
202, via satellite to set-top box Transmit message bag, this document bag comprises channel list and network information table to the digital video broadcasting platform according to frequency point information, so that set-top box according to the frequency point information in the network information table, is obtained the channel data in the channel list.
Here be understandable that channel data is channel identication or the characteristic parameter of each channel of difference in the channel list.
The embodiment of the invention discloses a kind of digital TV data transmission method, and as shown in Figure 3, in the set-top box side, the method comprises the steps:
301, the file bag that sends via satellite of set-top box receiving digital video broadcast platform, this document bag comprises channel list and network information table, and this network information table comprises the frequency point information of channel list.
Optionally, the channel list here comprises the channel list of network protocol television platform and the channel list of digital video broadcasting platform, wherein channel list is by extend markup language (Extensible Markup Language, be called for short XML) the file description, the XML file not only can be described the channel of digital video broadcasting platform, also can describe simultaneously the channel of network protocol television platform, can realize the mixing of the channel of the channel of digital video broadcasting platform and network protocol television platform.The frequency point information that is understandable that channel list is frequency point information such as the characteristic parameters such as frequency, symbol rate, polarised direction and modulation system that each channel is corresponding in the channel list, just can log on to a TV channel according to frequency point information corresponding to each channel like this, be that different channels uses the frequency point information with different characteristic parameter as the transmission frequency, and on transmission frequency corresponding to channel, just can obtain the program data in the channel.
302, set-top box resolution file bag obtains network information table and channel list, according to the frequency point information in the network information table, obtains the channel data in the channel list.
Here be understandable that channel data is in the channel list channel identication or the characteristic parameter of each channel of difference, such as information such as the current program information transmitted on the channel, stream rates.
The digital TV data transmission method that embodiments of the invention provide, send the channel list that generates according to the network protocol television platform to the user by the digital video broadcasting platform, can avoid the user in the television-viewing process, continually video supply system system to be switched, thereby reduce the processing load of set-top box.
The embodiment of the invention discloses another kind of digital TV data transmission method, and as shown in Figure 4, the method comprises the steps:
401, the channel list of the network information table of digital video broadcasting platform receiving network protocol TV platform transmission and transport stream TS format, this network information table comprises the frequency point information of channel list.
Optionally, the channel list of the TS format that sends of the network protocol television platform that receives of the digital video broadcasting platform in the step 401 is to be obtained by the format of channel list generator.
402, the digital video broadcasting platform distributes program identification to channel list, and chooses the transmission frequency in frequency point information, and program identification and transmission frequency are deposited in the network information table.
403, the digital video broadcasting platform is by the mode of frequency division multiplexing, the file bag that will comprise channel list and network information table on the transmission frequency is sent to set-top box via satellite, so that set-top box is obtained the channel data in the channel list according to transmission frequency and program identification in the network information table.
Wherein, program identification is identity code transmission package (Packet ID dentifier, be called for short PID), in addition, because the network information table that comprises in the packet that comprises different channel lists all is identical, therefore network information table can occur at each frequency, so that set-top box can get access at any frequency, it is corresponding one by one with channel in the channel list to can be understood as program identification, like this, because program identification can occur at each frequency, then the user can be known all programs that operator provides according to program identification in network information table, the user will determine the program that need to watch when program viewing, and the identify label of program is program identification, can realize that so just set-top box knows corresponding channel data according to program identification.
Wherein, need to prove, the frequency point information of channel list is frequency point information corresponding to each channel in the channel list, such as frequency, symbol rate, the characteristic parameter such as polarised direction and modulation system, set-top box just can be logged on to a TV channel according to frequency point information corresponding to each channel like this, be that different channels uses the frequency point information with different characteristic parameter as the transmission frequency, with data according to the modulation system in the frequency point information, symbol rate and polarised direction are transmitted in the frequency of this frequency point information appointment, set-top box just can be obtained transmission frequency corresponding to this channel and upload defeated data, that is to say, refer to according to the modulation system in the transmission frequency at transmission frequency transmitting data, symbol rate and polarised direction are at the frequency transmitting data of this transmission frequency appointment;
In the digital video broadcasting standard, network information table belongs to Program Specific Information (Program Specific Information, be called for short PSI) (PSI is the program specific information in the digital video broadcasting transport stream, it is the set of a category information, and network information table belongs to PSI), and the characteristics of PSI are all can transmit at all frequencies, make like this set-top box can in time get access to the file bag that the digital video broadcasting platform sends via satellite.
Will insert " linkage_descriptor " descriptor of an expansion in the network information table here, wherein " linkage_descriptor " descriptor is used for notifying the file bag existence that has to be used for transmitting channel list in the receiving equipment network.
Following table 1 is the simple sample that increases " linkage_gdscriptor " in the network information table, can be according to actual conditions with reference to (ETSI European Telecommunications Standards Institute, the abbreviation ETSI) EN 300 468 standards are adjusted, wherein " uimsbf " represents signless integer in the following table 1, and bslbf represents bit string.
Table 1
404, the file bag that sends via satellite of set-top box receiving digital video broadcast platform.
405, set-top box resolution file bag obtains channel list and network information table.
406, the transmission frequency in the set-top box locked frequency point information, this transmission frequency is arranged in the frequency point information of network information table, and obtain program identification in the network information table, according to program identification, in channel list, parse expandable mark language XML file corresponding to program identification.
407, set-top box is according to XML file acquisition channel data.
By step 407, set-top box just can be watched channel according to this channel data location.Concrete, set-top box is after some frequencies receive the file bag, can get access to network information table and channel list in the file bag, description according to table 1, can in network information table, find aforesaid " linkage_gdscriptor " descriptor, should " linkage_gdscriptor " descriptor have been described by sub-binary structure, set-top box on the backstage immediately according to above-mentioned sub-binary structure locking frequency, symbol rate, the frequency point information of the transmission such as polarised direction and modulation system frequency, and in network information table, obtain program identification PID, certainly can also obtain simultaneously the version number of other guide in the table 1 such as channel list, service identifiers (service_id) etc., set-top box is resolved channel list and is restored XML file corresponding to program identification subsequently, obtain channel data, and navigate to according to channel data and to watch the channel acquisition program data to carry out watching of TV programme.
The digital TV data transmission method that embodiments of the invention provide, send the channel list that generates according to the network protocol television platform to the user by the digital video broadcasting platform, can avoid the user in the television-viewing process, continually video supply system system to be switched, thereby reduce the processing load of set-top box.
The embodiment of the invention discloses a kind of digital video broadcasting platform 5, as shown in Figure 5, wherein digital video broadcasting platform 5 comprises: data receiver unit 51 and file transmitting element 52.
Further alternative, data receiver unit 51, the channel list that the TS that specifically sends for the receiving network protocol TV platform formats, the channel list of this TS format is obtained by the format of channel list generator.
Certainly employing channel list data generator that here can be independent is with channel list data TS file transfer fluidisation, and the method that also function of channel list data generator embodiment described above can be provided is integrated in the network protocol television platform and realizes.
The channel list here comprises the channel list of network protocol television platform and the channel list of digital video broadcasting platform.
File transmitting element 52, be used for the frequency point information of the network information table that receives according to data receiver unit 51 via satellite to set-top box Transmit message bag, this document bag comprises channel list and network information table, so that set-top box according to the frequency point information in the network information table, is obtained the channel data in the channel list.
Further alternative, file transmitting element 52 also comprises: information collocation module 521 and file Multiplexing module 522, wherein:
The digital video broadcasting platform that embodiments of the invention provide, send the channel list that generates according to the network protocol television platform to the user by the digital video broadcasting platform, can avoid the user in the television-viewing process, continually video supply system system to be switched, thereby reduce the processing load of set-top box.
The embodiment of the invention discloses a kind of set-top box 6, as shown in Figure 6, wherein set-top box 6 comprises: data receiver unit 61 and Data Analysis unit 62, wherein:
Further alternative, Data Analysis unit 62 specifically also comprises: data resolution module 621, locking frequency point module 622 and channel data acquisition module 623, wherein:
Locking frequency point module 622, be used for the transmission frequency in the frequency point information of the network information table that locking data parsing module 621 parses, this transmission frequency is arranged in the frequency point information of network information table, and obtain program identification in the network information table, according to program identification, in the channel list that data resolution module 621 parses, parse expandable mark language XML file corresponding to program identification.
Channel data acquisition module 623, channel is watched in the concrete channel information location of XML file acquisition that is used for parsing according to locking frequency point module 622.
The set-top box that embodiments of the invention provide, send the channel list that generates according to the network protocol television platform to the user by the digital video broadcasting platform, can avoid the user in the television-viewing process, continually video supply system system to be switched, thereby reduce the processing load of set-top box.
The structural representation of the digital video broadcasting platform that Fig. 7 provides for further embodiment of this invention, described digital video broadcasting platform comprises at least one processor 71, memory 72, communication bus 73 and at least one communication interface 74.
Wherein, described communication bus 73 is used for connection and the communication between the realization said modules, and described communication interface 74 is used for being connected with external equipment and communicating by letter.
Storage needs the program code of execution in the memory 72, and these program codes specifically can comprise: data receiver unit 721 and file transmitting element 722.
Further alternative, data receiver unit 721, the channel list that the TS that specifically sends for the receiving network protocol TV platform formats, the channel list of this TS format is obtained by the format of channel list generator.
File transmitting element 722, be used for the frequency point information of the network information table that receives according to data receiver unit 721 via satellite to set-top box Transmit message bag, this document bag comprises channel list and network information table, so that set-top box according to the frequency point information in the network information table, is obtained the channel data in the channel list.
Further alternative, file transmitting element 721 also comprises: information collocation module and file Multiplexing module, and wherein: information collocation module is used for distributing program identification to channel list, and in frequency point information, choose the transmission frequency, program identification and transmission frequency are deposited in the network information table.
The file Multiplexing module, be used for the mode by frequency division multiplexing, the file bag that will comprise channel list and network information table on the transmission frequency is sent to set-top box via satellite, the file bag comprises channel list and network information table, so that set-top box is obtained the channel data in the channel list according to transmission frequency and program identification in the network information table.
The digital video broadcasting platform that embodiments of the invention provide, send the channel list that generates according to the network protocol television platform to the user by the digital video broadcasting platform, can avoid the user in the television-viewing process, continually video supply system system to be switched, thereby reduce the processing load of set-top box.
The structural representation of the set-top box that Fig. 8 provides for further embodiment of this invention, described set-top box comprises at least one processor 81, memory 82, communication bus 83 and at least one communication interface 84.
Wherein, described communication bus 83 is used for connection and the communication between the realization said modules, and described communication interface 84 is used for being connected with external equipment and communicating by letter.
Storage needs the program code of execution in the memory 82, and these program codes specifically can comprise: data receiver unit 821 and Data Analysis unit 822.
Further alternative, Data Analysis unit 822 specifically also comprises: data resolution module, locking frequency point module and channel data acquisition module, wherein:
Data resolution module is used for the file bag that resolution data receiving element 821 receives, and obtains channel list and network information table, and this network information table comprises the frequency point information of channel list.
The locking frequency point module, be used for the transmission frequency in the frequency point information of the network information table that the locking data parsing module parses, this transmission frequency is arranged in the frequency point information of network information table, and obtain program identification in the network information table, according to program identification, in the channel list that data resolution module parses, parse expandable mark language XML file corresponding to program identification.
The channel data acquisition module, channel is watched in the concrete channel information location of XML file acquisition that is used for going out according to the locking frequency point module parses.
The set-top box that embodiments of the invention provide, send the channel list that generates according to the network protocol television platform to the user by the digital video broadcasting platform, can avoid the user in the television-viewing process, continually video supply system system to be switched, thereby reduce the processing load of set-top box.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (14)
1. a digital TV data transmission method is characterized in that, comprising:
The channel list of the network information table that digital video broadcasting platform receiving network protocol TV platform sends and transport stream TS format, described network information table comprises the frequency point information of described channel list;
According to described frequency point information via satellite to set-top box Transmit message bag, described file bag comprises described channel list and described network information table, so that described set-top box according to the frequency point information in the described network information table, is obtained the channel data in the described channel list.
2. method according to claim 1 is characterized in that, described digital video broadcasting platform receives the channel list of the described TS format of described network protocol television platform transmission, comprising:
Described digital video broadcasting platform receives the channel list of the described TS format of described network protocol television platform transmission, and the channel list of described TS format is obtained by the format of channel list generator.
3. method according to claim 1, it is characterized in that, described according to described frequency point information via satellite to set-top box Transmit message bag, described file bag comprises described channel list and described network information table, so that described set-top box is according to the frequency point information in the described network information table, obtain the channel data in the described channel list, comprising:
Distribute program identification to described channel list, and in described frequency point information, choose the transmission frequency, described program identification and described transmission frequency are deposited in the described network information table;
Mode by frequency division multiplexing, the file bag that will comprise described channel list and described network information table on described transmission frequency is sent to described set-top box by described satellite, so that described set-top box is obtained the channel data in the described channel list according to described transmission frequency and described program identification in the described network information table.
4. according to claim 1 to 3 described either method, it is characterized in that described channel list comprises the channel list of described network protocol television platform and the channel list of described digital video broadcasting platform.
5. a digital TV data transmission method is characterized in that, comprising:
The file bag that set-top box receiving digital video broadcast platform sends via satellite, described file bag comprises channel list and network information table, and described network information table comprises the frequency point information of described channel list;
Resolve described file bag, obtain described network information table and described channel list, according to the frequency point information in the described network information table, obtain the channel data in the described channel list.
6. method according to claim 5 is characterized in that, described network information table also comprises program identification, and is then described according to the frequency point information in the described network information table, obtains the channel data in the described channel list, comprising:
Lock the transmission frequency in the described frequency point information, described transmission frequency is arranged in the described frequency point information of described network information table, and obtain program identification in the described network information table, according to described program identification, in described channel list, parse expandable mark language XML file corresponding to described program identification;
According to the described channel data of described XML file acquisition.
7. a digital video broadcasting platform is characterized in that, comprising:
The data receiver unit is used for the network information table of receiving network protocol TV platform transmission and the channel list of transport stream TS format, and described network information table comprises the frequency point information of described channel list;
The file transmitting element, be used for the described frequency point information of the described network information table that receives according to described data receiver unit via satellite to set-top box Transmit message bag, described file bag comprises described channel list and described network information table, so that described set-top box according to the frequency point information in the described network information table, is obtained the channel data in the described channel list.
8. digital video broadcasting platform according to claim 7, it is characterized in that, specifically for the channel list of the described TS format that receives described network protocol television platform transmission, the channel list of described TS format is obtained by the format of channel list generator in described data receiver unit.
9. digital video broadcasting platform according to claim 7 is characterized in that, described file transmitting element comprises:
Information collocation module is used for distributing program identification to described channel list, and chooses the transmission frequency in described frequency point information, and described program identification and described transmission frequency are deposited in the described network information table;
The file Multiplexing module, be used for the mode by frequency division multiplexing, the file bag that will comprise described channel list and described network information table on described transmission frequency is sent to described set-top box by described satellite, so that described set-top box is obtained the channel data in the described channel list according to described transmission frequency and described program identification in the described network information table.
10. according to claim 7 to 9 described arbitrary digital video broadcasting platforms, it is characterized in that described channel list comprises the channel list of described network protocol television platform and the channel list of described digital video broadcasting platform.
11. a set-top box is characterized in that, comprising:
The data receiver unit is used for the file bag that the receiving digital video broadcast platform sends via satellite, and described file bag comprises channel list and network information table, and described network information table comprises the frequency point information of described channel list;
The Data Analysis unit is used for resolving the described file bag that described data receiver unit receives, and obtains described network information table and described channel list, according to the frequency point information in the described network information table, obtains the channel data in the described channel list.
12. set-top box according to claim 11 is characterized in that, described network information table also comprises program identification, and then described Data Analysis unit comprises:
Data resolution module is used for resolving the described file bag that described data receiver unit receives, and obtains described channel list and described network information table;
The locking frequency point module, be used for locking the transmission frequency of the described network information table that described data resolution module parses, described transmission frequency is arranged in the described frequency point information of described network information table, and obtain program identification in the described network information table, according to described program identification, in the described channel list that described data resolution module parses, parse expandable mark language XML file corresponding to described program identification;
The channel data acquisition module is used for the described channel data of described XML file acquisition that goes out according to described locking frequency point module parses.
13. a digital TV data transmission system comprises network protocol television platform, digital video broadcasting platform, satellite and set-top box, it is characterized in that, described digital video broadcasting platform is the described arbitrary digital video broadcasting platform of claim 7～10; Described set-top box is the described arbitrary set-top box of claim 11～12.
14. digital TV data transmission system according to claim 13 is characterized in that, also comprises: the channel list data generator.
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