CN102572571A - Method, device, terminal and system for receiving bidirectional service data - Google Patents
Method, device, terminal and system for receiving bidirectional service data Download PDFInfo
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Abstract
The invention discloses a method for receiving bidirectional service data, a digital television tuning device and a terminal. The method comprises the following steps of: receiving network address information of a bidirectional service system and frequency point information of a bidirectional service by a digital television receiving terminal through locking a preset frequency point; receiving transmission stream data by locking the frequency point corresponding to the bidirectional service selected by a user according to the frequency point information of the bidirectional service; filtering out bidirectional service data from the transmission stream data according to a preset data filtering condition for filtering out the bidirectional service data; and obtaining a terminal identification code from the transmission stream data, and judging whether the terminal identification code is the bidirectional service data required by the terminal, if yes, displaying the bidirectional service data. The digital television receiving terminal provided by the invention can receive and filter the bidirectional service data in the transmission stream data according to the preset frequency point and the preset filtering condition, and realizes that a bidirectional interactive service is developed on the traditional one-way digital television network.
Description
Technical field
The present invention relates to the digital television techniques field, particularly a kind of method, DTV tuner, terminal and system that receives the two-way services data.
Background technology
Under the overall situation of the integration of three networks, increasing digital television bidirectional interactive service need be accomplished through bilateral network, for example: business such as video on demand, TV shopping, TV chat, news magazine subscription, recreation.But; The a lot of areas of China are not owing to also or carry out the network rebuilding at present; Cause the two-way interaction business not promote timely and effectively and to experience; In this case, need utilize present one-way digital television receiving terminal (for example: STB) receive and handle the two-way services data, yet; Existing one-way digital television receiving terminal through the digital tuning device (for example: tuner) come the receiving digital television broadcast signal, do not have other special receiving equipments to receive the two-way services data only is.And do not carry out under the bilateral network technical modification at existing digital television front equipment, receiving terminal for digital television also can only receive data through tuner.Therefore, realize that on the basis of existing one-way digital television network two-way interaction is professional, need make improvement to existing receiving terminal for digital television, and the present invention has proposed a solution to this defective of prior art just.
Summary of the invention
Technical problem to be solved by this invention is: a kind of method, DTV tuner and terminal that receives the two-way services data is provided, and it can carry out two-way services through existing one-way digital television network.
For solving technical problem of the present invention, the present invention discloses a kind of method that receives the two-way services data, it is characterized in that, may further comprise the steps:
The frequency that the receiving terminal for digital television locking is preset receives the network address information of two-way services system and the frequency point information of two-way services;
The two-way services pairing frequency user-selected according to the frequency point information locking of two-way services receives transmit flow data;
The data filter condition that is used to filter out the two-way services data according to being provided with in advance filters out the two-way services data from transmit flow data;
From said transmit flow data, obtain host ID, judge whether two-way services data, if then said two-way services data are shown processing into this terminal request.
Wherein, further comprising the steps of before said step according to the pairing frequency reception of the user-selected two-way services of the frequency point information locking of two-way services transmit flow data:
Receiving terminal for digital television obtains the two-way services that the user selects, and generates the two-way services request that comprises digital TV terminal identification code and business demand information accordingly;
Send the network address information and the two-way services request of corresponding two-way services system to the bilateral network communication system;
Said bilateral network communication system is sent said two-way services request according to said network address information to corresponding two-way services system;
Said two-way services system generates transmit flow data according to said two-way services request with corresponding two-way services data and digital TV terminal identification code, sends said transmit flow data according to the pairing frequency of two-way services.
For solving technical problem of the present invention, the present invention also discloses a kind of DTV tuner, comprises the frequency locking unit, Data Receiving unit, filter element and the recognition unit that link to each other successively;
Said frequency locking unit is used to lock frequency that presets and the user-selected pairing frequency of two-way services of frequency point information locking that obtains according to the Data Receiving unit;
Said Data Receiving unit is used to receive the network address information of two-way services system and the frequency point information of two-way services, and transmit flow data;
Said filter element is used for the data filter condition that is used to filter out the two-way services data that basis is provided with in advance, from transmit flow data, filters out the two-way services data;
Said recognition unit is used for obtaining host ID from said transmit flow data, judges whether the two-way services data into this terminal request.
For solving technical problem of the present invention, the present invention also discloses a kind of receiving terminal for digital television, comprises above-mentioned DTV tuner and the storage device that is connected with the DTV tuner, user interaction means and display processing unit;
Said storage device is used to receive and store the frequency and the data filter condition of the frequency point information of the network address information that is used to receive the two-way services system and two-way services;
Said DTV tuner is used to lock the frequency that presets and receives the network address information of two-way services system and the frequency point information of two-way services; The two-way services pairing frequency user-selected according to the frequency point information locking of two-way services receives transmit flow data; The data filter condition that is used to filter out the two-way services data according to being provided with in advance filters out the two-way services data from transmit flow data; From said transmit flow data, obtain host ID, judge whether two-way services data into this terminal request;
Said user interaction means is used to receive the two-way services information that the user selects, and sends to said DTV tuner;
Said display processing unit is used for the network address information of the two-way services system that receives and/or the frequency point information of two-way services are shown processing; And when said DTV tuner judges that the two-way services data that filter out are the two-way services data of this terminal request, said two-way services data are shown processing.
Wherein, Also comprise data communication equipment; Be used for the user-selected two-way services information obtained according to said user interaction means; Generate the two-way services request carry digital TV terminal identification code and business demand information accordingly, be sent to the bilateral network communication system with the network address information of corresponding two-way services system.
For solving technical problem of the present invention, the present invention also discloses a kind of two-way services system, comprises data transmission blocks, request receiver module, memory module;
The described request receiver module is used to obtain the two-way services request that said bilateral network communication system is sent;
Said memory module is used to store the two-way services data;
Said data transmission blocks is used for generating transmit flow data according to the receiving terminal for digital television identification code that the corresponding two-way services data and the two-way services request of said memory module storage are carried in said two-way services request, sends said transmit flow data according to the pairing frequency of two-way services.
Wherein, said memory module also is used to store the one way traffic data; Said data transmission blocks also is used for said one way traffic data sending said transmit flow data with two-way services data and the multiplexing transmit flow data that is modulated into of receiving terminal for digital television identification code according to the pairing frequency of one way traffic.
Wherein, said memory module also is used to store the network address information of two-way services system and the frequency point information of two-way services; Said data transmission blocks is used for that also the network address information of two-way services system and two-way services are packaged into MPTS and is sent to receiving terminal for digital television through the transmission frequency that presets.
For solving technical problem of the present invention, the present invention also discloses a kind of bilateral network communication system, comprises interconnective retransmission unit and display unit; Said retransmission unit is used for the network address information and the two-way services request that comprises digital TV terminal identification code and business demand information of the two-way services system of receiving digital television receiving terminal transmission; Send said two-way services request according to said network address information to corresponding two-way services system; Said display unit is used to show the network address information and the two-way services request of said two-way services system.
Wherein, said retransmission unit comprises communication terminal and transmits service end; Said communication terminal is used to receive the network address information and the two-way services request of said two-way services system, and is sent to said forwarding service end; Said forwarding service end is used for sending said two-way services request according to said network address information to corresponding two-way services system.
Compared with prior art; The present invention has following beneficial effect: receiving terminal for digital television of the present invention can and filter out the two-way services data in the transmit flow data according to frequency that presets and filtercondition reception, is implemented on the existing one-way digital television network and carries out the two-way interaction business.
Description of drawings
Fig. 1 is the method flow diagram that the receiving terminal for digital television of the embodiment of the invention receives the two-way services data;
Fig. 2 is the DTV tuner structure chart of the embodiment of the invention;
Fig. 3 is the receiving terminal for digital television structure chart of the embodiment of the invention;
Fig. 4 is the two-way services system construction drawing of the embodiment of the invention;
Fig. 5 is the bilateral network communication system architecture figure of the embodiment of the invention;
Fig. 6 is that the two-way services based on the one-way digital television receiving terminal of the embodiment of the invention realize system construction drawing.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, 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 are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
As shown in Figure 1, the method for the reception two-way services data of the embodiment of the invention may further comprise the steps:
S100: the frequency that the receiving terminal for digital television locking is preset receives the network address information of two-way services system and the frequency point information of two-way services;
In this step; The two-way services that the frequency that presets is carried out according to need by two-way services system or digital TV front-end system or the factors such as geographical position of receiving terminal for digital television are provided with; Can set frequency point information be sent to receiving terminal for digital television through the software upgrading mode, receiving terminal for digital television receives and stores this frequency.The perhaps said frequency that presets, is provided with according to the requirement of digital-tv operator when producing by the manufacturer of receiving terminal for digital television, is stored in the memory.After the start, receiving terminal for digital television automatically locks this frequency and receives the network address information of two-way services system transmission and the frequency point information of two-way services; Perhaps, getting access to after the user selects information that two-way services use, lock this frequency and receive data.
Wherein, the frequency point information of network address information and two-way services is packaged in and sends to receiving terminal for digital television in the MPTS.Network address information can be IP address information, subnet mask and gateway information.Owing to have a plurality of two-way services system, so its network address information is equivalent to identification information, can be used for identifying the two-way services system.The frequency point information of two-way services is used to represent the transmission frequency of two-way services data, and different two-way services data can be sent with different transmission frequencies.
S200: the two-way services pairing frequency user-selected according to the frequency point information locking of two-way services receives transmit flow data;
In this step, get access to the frequency point information of two-way services when receiving terminal for digital television after, judge the frequency that needs locking according to the two-way services that the user selects.Particularly; Receiving terminal for digital television can be showed selectable two-way services to the user through modes such as tabulation, icons; For example: video request program, TV shopping, subscribe to news, TV pet etc.; After the user selected these two-way services of video request program, receiving terminal for digital television can be according to its frequency points corresponding of identification information judgment of these two-way services; The frequency point information of perhaps showing each two-way services to the user is directly obtained the frequency point information that the user selects.
Wherein, said transmit flow data comprises the identification code of two-way services data and receiving terminal for digital television, and by forming after two-way services system multiplexing, the modulation treatment, the transmit flow data generative process will be described below particularly.
S300: the data filter condition that is used to filter out the two-way services data according to being provided with in advance filters out the two-way services data from transmit flow data;
In this step, said data filter condition can be carried out relative set according to the demand of operator, and generally speaking, traditional audio frequency and video television broadcasting and data broadcast service are set to one way traffic; Other business, for example: video request program, TV shopping, subscribe to news, TV pet etc. are set to two-way services.This step that data filter condition is set in advance can be accomplished by two-way services system or the digital TV front-end system arbitrary step before step S300, and set data filter condition can send to receiving terminal for digital television through the mode of software upgrading; Perhaps by the manufacturer of receiving terminal for digital television when producing, be provided with according to the requirement of digital-tv operator, be stored in the memory.
S400: from said transmit flow data, obtain host ID, judge whether two-way services data, if then said two-way services data are shown processing into this terminal request.
In this step; After receiving terminal for digital television filters out the two-way services data in the transmit flow data, need to judge whether these two-way services data are the data of this terminal request, in the present embodiment; Receiving terminal for digital television is judged through the host ID that obtains in the transmit flow data; If identification code is the identification code at this terminal, then shows this two-way services data, otherwise do not handle.
Concrete demonstration processing procedure, the information such as literal, picture, video that are about to are carried out sending to display screen after coding/decoding is handled and are shown.Originally executing in the example, showing processing for making things convenient for receiving terminal for digital television, do not changing the middleware system at terminal, said step S400 is further comprising the steps of:
S401: if receiving terminal for digital television is judged the two-way services data of the said two-way services data that filter out for this terminal request; Then said two-way services packing data is become IP (Internet Protocol; Procotol) protocol package is resolved through TCP/IP (Transmission Control Protocol/Internet Protocol) transmission control protocol/internet interconnection protocol stack.Then, the two-way services data after resolving are shown processing.
In addition; For the one-way digital television receiving terminal, it can only receive data through frequency locking, and can not send data to the two-way services system; Therefore; For the two-way services information that the user is selected is sent to corresponding two-way services system, the two-way services data that make the two-way services system in time issue the user to be asked, present embodiment adopts receiving terminal for digital television to send corresponding request information by terminal equipments that other have the bilateral network communication function to the two-way services system; Therefore, before said step S200, may further comprise the steps:
S201: receiving terminal for digital television obtains the two-way services that the user selects, and generates the two-way services request that comprises digital TV terminal identification code and business demand information accordingly;
In this step, business demand information is used to describe the concrete business demand of user.For example: the stock code of the film title of request program request portion film and demand (telecommunication) service ID (Identity, sign) number or requesting query stock information and stock traffic ID number, or the trade name bought of request and TV shopping traffic ID number or the like.
S202: the network address information and the two-way services request of sending corresponding two-way services system to the bilateral network communication system;
S203: said bilateral network communication system is sent said two-way services request according to said network address information to corresponding two-way services system;
In this step; The bilateral network communication system also shows processing after receiving said network address information and two-way services request, and accepts user's selection information; If the user confirms to send, then carry out the step of sending said two-way services request to corresponding two-way services system; Otherwise do not carry out.Concrete forwarding processing procedure will be described below.
S204: said two-way services system generates transmit flow data according to said two-way services request with corresponding two-way services data and digital TV terminal identification code, sends said transmit flow data according to the pairing frequency of said two-way services.
In this step; After the two-way services system obtains the two-way services solicited message; According to business demand data wherein; Judgement need provide which kind of business (for example: judge through the traffic ID in the business demand information number and other relevant informations), then these data that adapt is generated the two-way services data.Then, the two-way services system generates transmit flow data with these two-way services data and digital TV terminal identification code.Particularly, the two-way services system with two-way services data and digital TV terminal identification code coding, multiplexing, be modulated into the transmit flow data that meets the DVB standard; In addition; Because the frequency resource-constrained, the two-way services system also can be with two-way services data, receiving terminal for digital television identification code with the multiplexing transmit flow data that is modulated into of traditional one way traffic, from this transmit flow data of frequency transmission of one way traffic; Make receiving terminal for digital television (for example: broadcast TV program) receiving traditional one way traffic; Receive the two-way services data,, further improved user experience while make the user can see that TV uses two-way services.
In embodiments of the present invention; The bilateral network communication system comprises mobile phone, personal computer, PDA (Personal Digital Assistant; The personal digital assistant), panel computer etc. has the terminal of wireless or wired bilateral network communication function, and relevant base station, the webserver etc.Receiving terminal for digital television can be bound a certain communication terminal in advance; Also can list an available communication terminal list, send the two-way services request to corresponding bilateral network communication system according to user's selection.Receiving terminal for digital television can be communicated by letter with the bilateral network communication system through short-range wireless communication protocol and is connected, for example: bluetooth, wifi (wireless fidelity, Wireless Fidelity), communication protocol such as infrared.
Certainly, except the mode of this kind receiving terminal for digital television active, also comprise by the user and send said two-way services request mode according to the network address information of two-way services system to the two-way services system through communication terminal by other communication terminal.When receiving terminal for digital television through modes such as tabulation, icons after the user shows selectable two-way services; The user uses communication terminals such as mobile phone, computer; According to network address information (URL (Universal Resource Locator for example; URL), IP address etc.) through network linkings such as the Internet, 3G communication networks to corresponding two-way services system, send said digital TV terminal identification code and business demand information.
As shown in Figure 2; The embodiment of the invention also provides a kind of DTV tuner; This tuner is applied in the receiving terminal for digital television, is mainly used in locked frequency point and receives transmit flow data, comprises the frequency locking unit, Data Receiving unit, filter element and the recognition unit that link to each other successively;
Said frequency locking unit is used to lock frequency that presets and the user-selected pairing frequency of two-way services of frequency point information locking that obtains according to the Data Receiving unit;
Wherein, The two-way services that the frequency that presets is carried out according to need by two-way services system or digital TV front-end system or the factors such as geographical position of receiving terminal for digital television are provided with; Can set frequency point information be sent to receiving terminal for digital television through the software upgrading mode, receiving terminal for digital television receives and stores this frequency.The perhaps said frequency that presets, is provided with according to the requirement of digital-tv operator when producing by the manufacturer of receiving terminal for digital television, is stored in the memory.After the start, receiving terminal for digital television automatically locks this frequency and receives the network address information of two-way services system transmission and the frequency point information of two-way services; Perhaps, getting access to after the user selects information that two-way services use, lock this frequency and receive data.
The frequency point information of two-way services is used to represent the transmission frequency of two-way services data, and different two-way services data can be sent with different transmission frequencies.When the user selected a certain two-way services, the frequency locking unit then, locked this frequency according to its corresponding frequency point information of two-way services identification information judgment that the user selects.
Said Data Receiving unit is used to receive the network address information of two-way services system and the frequency point information of two-way services, and transmit flow data;
Wherein, the frequency point information of network address information and two-way services is packaged in and sends to receiving terminal for digital television in the MPTS.And said transmit flow data comprises the identification code of two-way services data and receiving terminal for digital television, and by forming after two-way services system multiplexing, the modulation treatment, the transmit flow data generative process will be described below particularly.
Said filter element is used for the data filter condition that is used to filter out the two-way services data that basis is provided with in advance, from transmit flow data, filters out the two-way services data;
Said recognition unit is used for obtaining host ID from said transmit flow data, judges whether the two-way services data into this terminal request.
In embodiments of the present invention, said data filter condition can be carried out relative set according to the demand of operator, generally speaking, is one way traffic with traditional audio-video-frequency broadcast business setting; Other business, for example: video request program, TV shopping, subscribe to news, TV pet etc. are set to two-way services.This step that data filter condition is set in advance can be accomplished by two-way services system or digital TV front-end system, and set data filter condition can send to receiving terminal for digital television through the mode of software upgrading; Perhaps by the manufacturer of receiving terminal for digital television when producing, be provided with according to the requirement of digital-tv operator, be stored in the memory.
As shown in Figure 3; The embodiment of the invention also provides a kind of receiving terminal for digital television; Comprise above-mentioned DTV tuner; And the storage device, user interaction means and the display processing unit that are connected with the DTV tuner, said storage device is used to receive and store the frequency and the data filter condition of the frequency point information of the network address information that is used to receive the two-way services system and two-way services;
Said DTV tuner is used to lock the frequency that presets and receives the network address information of two-way services system and the frequency point information of two-way services; The two-way services pairing frequency user-selected according to the frequency point information locking of two-way services receives transmit flow data; The data filter condition that is used to filter out the two-way services data according to being provided with in advance filters out the two-way services data from transmit flow data; From said transmit flow data, obtain host ID, judge whether two-way services data into this terminal request;
Said user interaction means is used to receive the two-way services information that the user selects, and sends to said DTV tuner;
Said display processing unit is used for the network address information of the two-way services system that receives and/or the frequency point information of two-way services are shown processing; And when said DTV tuner judges that the two-way services data that filter out are the two-way services data of this terminal request, said two-way services data are shown processing.
Further; The two-way services data of being asked for making the two-way services system in time issue the user; The receiving terminal for digital television of present embodiment also comprises data communication equipment; Be used for the user-selected two-way services information obtained according to said user interaction means, generate the two-way services request of carrying digital TV terminal identification code and business demand information accordingly, be sent to the bilateral network communication system with the network address information of corresponding two-way services system.
For making things convenient for receiving terminal for digital television to show processing; Do not change the middleware system at terminal; The receiving terminal for digital television of present embodiment also further comprises the packing data module; Be used for when said DTV tuner judges that the two-way services data that filter out are the two-way services data of this terminal request, said two-way services packing data being become the IP protocol package, re-send to the ICP/IP protocol stack and carry out dissection process.Then, carry out coding/decoding through display processing unit and handle, send to display screen and show.
In embodiments of the present invention, receiving terminal for digital television includes but not limited to: and STB, network protocol television (Internet Protocol Television, IPTV), terminal with receiving digital television function such as digital TV integrated machine.
As shown in Figure 4, the embodiment of the invention also provides a kind of two-way services system to comprise data transmission blocks, request receiver module, memory module;
The described request receiver module is used to obtain the two-way services request that said bilateral network communication system is sent;
Said memory module is used to store the two-way services data;
Said data transmission blocks is used for generating transmit flow data according to the receiving terminal for digital television identification code that the corresponding two-way services data and the two-way services request of said memory module storage are carried in said two-way services request, sends said transmit flow data according to the pairing frequency of two-way services.
Wherein, said memory module also is used to store the one way traffic data; Said data transmission blocks also is used for said one way traffic data sending said transmit flow data with two-way services data and the multiplexing transmit flow data that is modulated into of receiving terminal for digital television identification code according to the pairing frequency of one way traffic.
If one way traffic data and two-way services data are sent to receiving terminal for digital television together; Then preferably send according to the pairing frequency of one way traffic; At this moment, the frequency point information of the two-way services that frequency received that preset of DTV tuner locking is the pairing frequency point information of this one way traffic.
In addition, the memory module of the two-way services system of present embodiment also is used to store the network address information of two-way services system and the frequency point information of two-way services.Said data transmission blocks is used for that also the network address information of two-way services system and two-way services are packaged into MPTS and is sent to receiving terminal for digital television through the transmission frequency that presets.
As shown in Figure 5, the embodiment of the invention also provides a kind of bilateral network communication system, comprises interconnective retransmission unit and display unit; Said retransmission unit is used for the network address information and the two-way services request that comprises digital TV terminal identification code and business demand information of the two-way services system of receiving digital television receiving terminal transmission; Send said two-way services request according to said network address information to corresponding two-way services system;
Said display unit is used to show the network address information and the two-way services request of said two-way services system.
Particularly, the retransmission unit of present embodiment comprises communication terminal and transmits service end, and communication terminal is used to receive the network address information and the two-way services request of said two-way services system, and is sent to said forwarding service end; Said forwarding service end is used for sending said two-way services request according to said network address information to corresponding two-way services system.For example; STB sends to mobile phone with the network address information and the two-way services request of two-way services system; Near mobile phone sends to the network address information of said two-way services system and two-way services request as communication terminal base station; Said data are resolved as transmitting service end in the base station, send said two-way services request according to said network address information to corresponding two-way services system then.
In embodiments of the present invention, said communication terminal includes but not limited to: mobile phone, personal computer, PDA, panel computer etc. have the terminal of wireless or wired bilateral network communication function.
Technical scheme for the further explain embodiment of the invention; Realize system referring to the two-way services that comprise receiving terminal for digital television, bilateral network communication system and two-way services system shown in Figure 6 again based on the one-way digital television receiving terminal; In this system; Can connect through Small Area Wireless Communication Networks between receiving terminal for digital television and the bilateral network communication system; Perhaps connect (for example: GSM (Global System for Mobile Communications, global system for mobile communications), CDMA (Code Division Multiple Access, code division multiple access) etc.) through mobile radio communication network; Perhaps (for example: usb data line (Universal Serial BUS, USB)) connect through wired mode.Can pass through networks such as the Internet, 3G communication network between bilateral network communication system and the two-way services system connects.Still be connected through existing HFC digital TV networks such as (Hybrid Fiber Coaxial, hybrid fiber coaxs) between receiving terminal for digital television and the two-way services system.
In sum; The technical scheme of utilizing the embodiment of the invention to provide can need not existing one-way digital television network is done bidirectional rebuilding, only needs to use the various bidirectional communication networks of present technology maturation; Just can realize that two-way interaction is professional; Make digital-tv operator need not to spend network rebuilding expense, just can let users on the one-way digital television receiving terminal, enjoy colourful two-way services, greatly promoted the popularization of two-way services.
More than lift preferred embodiment, the object of the invention, technical scheme and advantage have been carried out further explain, institute is understood that; The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle; Any modification of being done, be equal to replacement, improvement etc.; All should be included within protection scope of the present invention, the interest field that the present invention advocated should application range is said to be as the criterion to invent, but not only limits to the foregoing description.
Claims (10)
1. a method that receives the two-way services data is characterized in that, may further comprise the steps:
The frequency that the receiving terminal for digital television locking is preset receives the network address information of two-way services system and the frequency point information of two-way services;
The two-way services pairing frequency user-selected according to the frequency point information locking of two-way services receives transmit flow data;
The data filter condition that is used to filter out the two-way services data according to being provided with in advance filters out the two-way services data from transmit flow data;
From said transmit flow data, obtain host ID, judge whether two-way services data, if then said two-way services data are shown processing into this terminal request.
2. the method for claim 1 is characterized in that, and is further comprising the steps of before said step according to the pairing frequency reception of the user-selected two-way services of the frequency point information locking of two-way services transmit flow data:
Receiving terminal for digital television obtains the two-way services that the user selects, and generates the two-way services request that comprises digital TV terminal identification code and business demand information accordingly;
Send the network address information and the two-way services request of corresponding two-way services system to the bilateral network communication system;
Said bilateral network communication system is sent said two-way services request according to said network address information to corresponding two-way services system;
Said two-way services system generates transmit flow data according to said two-way services request with corresponding two-way services data and digital TV terminal identification code, sends said transmit flow data according to the pairing frequency of two-way services.
3. a DTV tuner is characterized in that, comprises the frequency locking unit, Data Receiving unit, filter element and the recognition unit that link to each other successively;
Said frequency locking unit is used to lock frequency that presets and the user-selected pairing frequency of two-way services of frequency point information locking that obtains according to the Data Receiving unit;
Said Data Receiving unit is used to receive the network address information of two-way services system and the frequency point information of two-way services, and transmit flow data;
Said filter element is used for the data filter condition that is used to filter out the two-way services data that basis is provided with in advance, from transmit flow data, filters out the two-way services data;
Said recognition unit is used for obtaining host ID from said transmit flow data, judges whether the two-way services data into this terminal request.
4. a receiving terminal for digital television is characterized in that, comprises the described DTV tuner of claim 5 and the storage device that is connected with the DTV tuner, user interaction means and display processing unit;
Said storage device is used to receive and store the frequency and the data filter condition of the frequency point information of the network address information that is used to receive the two-way services system and two-way services;
Said DTV tuner is used to lock the frequency that presets and receives the network address information of two-way services system and the frequency point information of two-way services; The two-way services pairing frequency user-selected according to the frequency point information locking of two-way services receives transmit flow data; The data filter condition that is used to filter out the two-way services data according to being provided with in advance filters out the two-way services data from transmit flow data; From said transmit flow data, obtain host ID, judge whether two-way services data into this terminal request;
Said user interaction means is used to receive the two-way services information that the user selects, and sends to said DTV tuner;
Said display processing unit is used for the network address information of the two-way services system that receives and/or the frequency point information of two-way services are shown processing; And when said DTV tuner judges that the two-way services data that filter out are the two-way services data of this terminal request, said two-way services data are shown processing.
5. receiving terminal for digital television as claimed in claim 4; It is characterized in that; Also comprise data communication equipment; Be used for the user-selected two-way services information obtained according to said user interaction means, generate the two-way services request of carrying digital TV terminal identification code and business demand information accordingly, be sent to the bilateral network communication system with the network address information of corresponding two-way services system.
6. a two-way services system is characterized in that, comprises data transmission blocks, request receiver module, memory module;
The described request receiver module is used to obtain the two-way services request that said bilateral network communication system is sent;
Said memory module is used to store the two-way services data;
Said data transmission blocks is used for generating transmit flow data according to the receiving terminal for digital television identification code that the corresponding two-way services data and the two-way services request of said memory module storage are carried in said two-way services request, sends said transmit flow data according to the pairing frequency of two-way services.
7. like the said two-way services of claim 6 system, it is characterized in that said memory module also is used to store the one way traffic data; Said data transmission blocks also is used for said one way traffic data sending said transmit flow data with two-way services data and the multiplexing transmit flow data that is modulated into of receiving terminal for digital television identification code according to the pairing frequency of one way traffic.
8. like claim 6 or 7 said two-way services systems, it is characterized in that said memory module also is used to store the network address information of two-way services system and the frequency point information of two-way services; Said data transmission blocks is used for that also the network address information of two-way services system and two-way services are packaged into MPTS and is sent to receiving terminal for digital television through the transmission frequency that presets.
9. a bilateral network communication system is characterized in that, comprises interconnective retransmission unit and display unit; Said retransmission unit is used for the network address information and the two-way services request that comprises digital TV terminal identification code and business demand information of the two-way services system of receiving digital television receiving terminal transmission; Send said two-way services request according to said network address information to corresponding two-way services system;
Said display unit is used to show the network address information and the two-way services request of said two-way services system.
10. bilateral network communication system as claimed in claim 9 is characterized in that, said retransmission unit comprises communication terminal and transmits service end; Said communication terminal is used to receive the network address information and the two-way services request of said two-way services system, and is sent to said forwarding service end; Said forwarding service end is used for sending said two-way services request according to said network address information to corresponding two-way services system.
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