CN102098558A - Three-network convergence digital television (TV) set top box and implementation method thereof - Google Patents
Three-network convergence digital television (TV) set top box and implementation method thereof Download PDFInfo
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Abstract
The invention relates to a three-network convergence digital television (TV) set top box and an implementation method thereof. The three-network convergence digital TV set top box comprises a tuner connected with a high-frequency current (HFC) network along two ways, an Ethernet over cable (EOC) unit connected with the tuner along two ways, and a digital TV unit and a wireless interface unit which are connected with the EOC unit along two ways, wherein the digital TV unit and the wireless interface unit are in two-way connection; and a digital TV input end of the digital TV unit is connected with a digital TV output end of the tuner. The EOC unit can be used for realizing the conversion between Ethernet packet and an HFC signal, and the HFC network has the function of connecting Ethernet, so that the Ethernet can be visited by visiting the HFC network; the wireless interface unit is used for providing wireless access of a terminal, so that the terminal can be connected with the Ethernet without a wired network, and various functions such as voice over internet phone (VOIP) of the Ethernet can be realized; therefore, one digital TV set top box can be used for providing the service functions of three networks including a digital TV network, the internet and a voice network, thus realizing physical convergence of the three networks.
Description
Technical field
The present invention relates to the implementation method of a kind of integration of three networks digital TV set-top box and a kind of integration of three networks digital TV set-top box.
Background technology
The existing implementation that possesses the digital TV set-top box of ethernet feature, usually have following several: one, provide the way of output of a RJ45 cable, be connected to Ethernet by wire cable, when using this mode,, tend to be subjected to the puzzlement of wiring problem owing to be to adopt wired mode to connect, for aesthetic property, need carry out concrete plan to the laying of wire cable, otherwise putting of circuit can be in disorder, influences aesthetic property; Two, digital TV set-top box adopts the connection wireless router, carries out data interaction by wireless mode, and the set-top box that this mode designs can't provide broadband internet to insert to terminal; Three, providing the ADSL Digital Television inserts, this mode only can provide the 8M bandwidth, the 8M bandwidth only can be broadcast one tunnel HDTV (High-Definition Television), can't enough bandwidth be provided and a RJ45 cable output only is provided for internet access and VOIP, in addition, when using, also be to adopt wired mode to connect, also can often be subjected to the puzzlement of wiring problem, bring great not convenient property.
Summary of the invention
At above-mentioned problems of the prior art, the object of the present invention is to provide a kind of integration of three networks digital TV set-top box and its implementation, it can make terminal need not to be laid with spider lines promptly can access network based on ethernet, three net service functions of digital TV network, the Internet, voice network are provided by a top box of digital machine, realize the integration of three networks, convenient and saving cost.
For achieving the above object, the present invention by the following technical solutions:
A kind of integration of three networks digital TV set-top box, comprise: net the two-way tuner that is connected with HFC, with the two-way EOC unit that is connected of described tuner, with two-way Digital Television unit and the radio interface unit that is connected in described EOC unit, described Digital Television unit is connected with described radio interface unit is two-way, and the Digital Television input of described Digital Television unit is connected with the Digital Television output of described tuner;
Described tuner is used for the HFC signal that the EOC unit sends is sent to front end, the HFC signal that receiving front-end returns, and this HFC signal is sent to Digital Television unit or EOC unit according to the channel that receives this HFC signal;
The conversion between Ethernet data bag and the HFC signal is realized in described EOC unit, be sent to tuner after being used for the Ethernet data bag that Digital Television unit, radio interface unit send is converted to the HFC signal, receive the HFC signal that tuner sends, with this HFC conversion of signals is the Ethernet data bag, and according to the internet target address of the Ethernet data bag after this conversion this Ethernet data bag is sent to Digital Television unit or radio interface unit;
Described radio interface unit realizes the conversion between wireless data packet and the Ethernet data bag, be used for the wireless data packet that receiving terminal sends, send to Digital Television unit or EOC unit after this wireless data packet is converted to the Ethernet data bag, and send to terminal after the Ethernet data bag that Digital Television unit, EOC unit send is converted to wireless data packet.
A kind of implementation method of integration of three networks digital TV set-top box, described integration of three networks digital TV set-top box comprises: net the two-way tuner that is connected with HFC, with the two-way EOC unit that is connected of described tuner, with two-way Digital Television unit and the radio interface unit that is connected in described EOC unit, described Digital Television unit is connected with described radio interface unit is two-way, and the Digital Television input of described Digital Television unit is connected with the Digital Television output of described tuner;
Described implementation method comprises:
Tuner receives the digital television signal of HFC net, and this digital television signal is sent to described Digital Television unit plays;
The Digital Television unit sends the Ethernet data bag that obtains program to the EOC unit, and the EOC unit is sent to front end by tuner after converting this Ethernet data bag to the HFC signal; After tuner receives the HFC signal that front end returns, according to the channel that receives this HFC signal, this HFC signal is sent to Digital Television unit or EOC unit, the EOC unit sends to the Digital Television unit after this HFC conversion of signals is become the Ethernet data bag, and the Digital Television unit is play the HFC signal or the Ethernet data bag that receive;
The program request instruction that the radio interface unit receiving terminal sends, with the program request instruction transformation that receives is to send to described Digital Television unit behind the Ethernet data bag, and described Digital Television unit obtains programme information and plays from described terminal by described radio interface unit;
The wireless data packet that the radio interface unit receiving terminal sends sends to the EOC unit after this wireless data packet is converted to the Ethernet data bag, and the EOC unit is sent to front end by tuner after this Ethernet data bag is converted to the HFC signal; The HFC signal of tuner receiving front-end feedback also is transmitted to the EOC unit, the EOC unit is to send to radio interface unit behind the Ethernet data bag with this HFC conversion of signals, and radio interface unit sends to described terminal after this Ethernet data bag is converted to wireless data packet.
Scheme according to the invention described above, it is mutual by tuner realization and HFC net front end, when realizing common Digital Television playing function, the digital television signal that tuner receives can directly be exported to the Digital Television unit and play, by the conversion between EOC unit realization Ethernet data bag and the HFC signal, by the conversion between radio interface unit realization wireless data packet and the Ethernet data bag, realize and computer, mobile phone, the radio communication of terminals such as embedded system, because the conversion between Ethernet data bag and the HFC signal can be realized in the EOC unit, and the HFC net itself has the function of access network based on ethernet, promptly can visit Ethernet by visit HFC net, and radio interface unit provides the wireless access of terminal, thereby, terminal need not to be laid with under the situation of spider lines, promptly can be by digital TV set-top box access network based on ethernet of the present invention, can use simultaneously this digital TV set-top box and realize the available various functions of Ethernet, VOIP function for example, thereby can provide digital TV network by a digital TV set-top box, the Internet, the service function of three networks of voice network, realize that three net physics merge, convenient convenient and saving cost.
Description of drawings
Fig. 1 is the structural representation of digital TV set-top box of the present invention.
Embodiment
Below in the mode of a specific embodiment the present invention program is elaborated.
As shown in Figure 1, it is the structural representation of a specific embodiment of integration of three networks digital TV set-top box of the present invention, it includes tuner, the Digital Television unit, EOC (Ethernet over Coax, the ether data are transmitted by coaxial cable) unit, radio interface unit, wherein, tuner and HFC (NybridFiber-Coaxial, Hybrid Fiber Coaxial) the two-way connection of net, the two-way connection between EOC unit and the tuner, the Digital Television input of Digital Television unit is connected with the Digital Television output of tuner, the two-way connection between Digital Television unit and the EOC unit, the two-way connection between Digital Television unit and the radio interface unit, the two-way connection between EOC unit and the radio interface unit.
Wherein, tuner is used for the HFC signal that the EOC unit sends is sent to front end, the HFC signal that receiving front-end returns, and this HFC signal is sent to Digital Television unit or EOC unit according to the channel that receives this HFC signal;
The conversion between Ethernet data bag and the HFC signal is realized in the EOC unit, be sent to tuner after being used for the Ethernet data bag that Digital Television unit, radio interface unit send is converted to the HFC signal, receive the HFC signal that tuner sends, with this HFC conversion of signals is the Ethernet data bag, and according to the internet target address of the Ethernet data bag after this conversion this Ethernet data bag is sent to Digital Television unit or radio interface unit;
Radio interface unit realizes the conversion between wireless data packet and the Ethernet data bag, be used for the wireless data packet that receiving terminal sends, send to Digital Television unit or EOC unit after this wireless data packet is converted to the Ethernet data bag, and send to terminal after the Ethernet data bag that Digital Television unit, EOC unit send is converted to wireless data packet.
Integration of three networks digital TV set-top box according to the invention described above, realize mutual with HFC net front end by tuner, when realizing common Digital Television playing function, the digital television signal that tuner receives can directly be exported to the Digital Television unit and play, by the conversion between EOC unit realization Ethernet data bag and the HFC signal, by the conversion between radio interface unit realization wireless data packet and the Ethernet data bag, realize and computer, mobile phone, the radio communication of terminals such as embedded system, because the conversion between Ethernet data bag and the HFC signal can be realized in the EOC unit, and the HFC net itself has the function of access network based on ethernet, promptly can visit Ethernet by visit HFC net, and radio interface unit provides the wireless access of terminal, thereby, terminal need not to be laid with under the situation of spider lines, promptly can be by digital TV set-top box access network based on ethernet of the present invention, can use simultaneously this digital TV set-top box and realize the available various functions of Ethernet, VOIP function for example, thereby can provide digital TV network by a digital TV set-top box, the Internet, the service function of three networks of voice network, realize that three net physics merge, convenient convenient and saving cost.
Below just be elaborated at the concrete course of work of the integration of three networks digital TV set-top box of using the invention described above.
When realizing common, general Digital Television playing function, the digital television signal of HFC net is sent into tuner, directly is transmitted to the Digital Television unit through tuner and plays, wherein, this digital television signal still is the HFC signal, only since its function and content from doing this differentiation nominally.
The Digital Television unit sends the Ethernet data bag that obtains program to the EOC unit, and the EOC unit is sent to front end by tuner after converting this Ethernet data bag to the HFC signal.After tuner receives the HFC signal that front end returns, according to the channel that receives this HFC signal, this HFC signal is sent to the Digital Television unit to be play, or this HFC signal sent to the EOC unit, the EOC unit sends to the Digital Television unit after this HFC conversion of signals is become the Ethernet data bag, and the Digital Television unit is play the HFC signal or the Ethernet data bag that receive.
After tuner receives digital television signal, also high-frequency signal can be transferred to intermediate-freuqncy signal and export to the Digital Television unit,, reduce the components and parts cost to improve the receptivity of Digital Television unit.
Integration of three networks digital TV set-top box according to the invention described above can also realize the terminal access internet function.
During realization, the network terminal (for example network insertion terminals such as PC, mobile phone, Ethernet embedded system) sends relevant wireless data packet, after radio interface unit receives, be transmitted to the EOC unit after being converted into the internet data bag, the EOC unit receives the internet data bag that radio interface unit sends, after being converted into the HFC signal, be transferred to the front end of hfc plant by tuner, but because hfc plant access band Ethernet itself, thereby can realize WiMAX function in view of the above by digital TV set-top box.The network information (HFC signal) that feeds back to by the HFC net, after tuner receives, be transmitted to the EOC unit, send to radio interface unit after being converted into the Ethernet data bag by the EOC unit, radio interface unit feeds back to terminal after the Ethernet data bag that receives is converted to corresponding wireless data packet.If need show on Digital Television, the Ethernet data bag through after the EOC cell translation can also send to the Digital Television unit, and demonstration can directly be exported to the Ethernet data bag in the Digital Television unit.
Integration of three networks digital TV set-top box of the present invention, owing to be by HFC net access network based on ethernet by the EOC unit, the access bandwidth of EOC unit is 100M, and terminal is to carry out alternately with this integration of three networks digital TV set-top box by wireless mode, in wireless coverage, need not to be laid with spider lines and promptly can insert the Internet, realized the function of broadband access in view of the above, and the access bandwidth of 100M can be provided in view of the above, and convenience is convenient, cost is low and bandwidth is big.
According to integration of three networks digital TV set-top box of the present invention, can also realize a multicast function, put sowing time, user side sends the program request instruction by terminal to digital TV set-top box, this program request instruction sends in the mode of wireless data packet, after radio interface unit receives, is to send to the Digital Television unit behind the Ethernet data bag with the program request instruction transformation that receives, enter the program request function after the Digital Television unit receives, and obtain relevant programme information (for example video information etc.) from terminal and play.
If the Digital Television unit can't obtain corresponding programme information from terminal, then the Digital Television unit sends the Ethernet data bag that obtains program to the EOC unit, after the EOC unit receives this Ethernet data bag, send to HFC net (front end) by tuner after this Ethernet data bag is converted to the HFC signal.After tuner receives the HFC signal that front end returns, according to the channel that receives this HFC signal, this HFC signal is exported to the Digital Television unit to be play, or, this HFC signal is transferred to the EOC unit, the EOC unit is to export to the Digital Television unit behind the Ethernet data bag to play output with this HFC conversion of signals, realizes the playing function of Digital Television in view of the above.
Digital TV set-top box according to the invention described above, because high bandwidth is provided, therefore, this digital TV set-top box be can use simultaneously and the available various functions of Ethernet, for example VOIP (Voice overInternet Protocol, the networking telephone) function or the like realized, and provide the wireless access function of VOIP, thereby can provide the service function of digital TV network, the Internet, three networks of voice network by a digital TV set-top box, realize that three net physics merge.
When functions such as above-mentioned realization the Internet access, program request, Digital Television broadcast, the HFC signal of passing back for front end, tuner transfers high-frequency signal to intermediate-freuqncy signal and exports to the Digital Television unit, improves the receptivity of Digital Television unit, reduces the components and parts cost.
For the HFC signal of EOC unit to the tuner transmission, tuner also transfers this HFC signal to high-frequency signal by intermediate-freuqncy signal, is sent to the HFC net again, to improve the anti-interference of signal in the transmission of HFC net.
Wherein, above-mentioned EOC unit can be any one in CABLE MODEM (cable modem), MOCAEOC terminal or the HOMEPLUS EOC terminal etc.Above-mentioned radio interface unit can be WiFi (Wireless Fidelity, 802.11b standard) interface unit, WAPI (Wireless LANAuthentication and Privacy Infrastructure, WLAN authentication and privacy infrastructure) any one in interface unit, the bluetooth interface units etc. is as long as can provide wireless access function.Radio interface unit can also be supported multiple in these wireless access ways for example to comprise WiFi interface unit, WAPI interface unit, bluetooth interface units simultaneously simultaneously, to support multiple wireless access way simultaneously, satisfies the needs that expand.
According to the integration of three networks digital TV set-top box of the invention described above, the present invention also provides a kind of implementation method of integration of three networks digital TV set-top box, and the specific implementation step can not repeat them here as mentioned above.
Above-described embodiment of the present invention only is a detailed description to preferred embodiment of the present invention, does not constitute the qualification to protection range of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (10)
1. integration of three networks digital TV set-top box, it is characterized in that, comprise: net the two-way tuner that is connected with HFC, with the two-way EOC unit that is connected of described tuner, with two-way Digital Television unit and the radio interface unit that is connected in described EOC unit, described Digital Television unit is connected with described radio interface unit is two-way, and the Digital Television input of described Digital Television unit is connected with the Digital Television output of described tuner;
Described tuner is used for the HFC signal that the EOC unit sends is sent to front end, the HFC signal that receiving front-end returns, and this HFC signal is sent to Digital Television unit or EOC unit according to the channel that receives this HFC signal;
The conversion between Ethernet data bag and the HFC signal is realized in described EOC unit, be sent to tuner after being used for the Ethernet data bag that Digital Television unit, radio interface unit send is converted to the HFC signal, receive the HFC signal that tuner sends, with this HFC conversion of signals is the Ethernet data bag, and according to the internet target address of the Ethernet data bag after this conversion this Ethernet data bag is sent to Digital Television unit or radio interface unit;
Described radio interface unit realizes the conversion between wireless data packet and the Ethernet data bag, be used for the wireless data packet that receiving terminal sends, send to Digital Television unit or EOC unit after this wireless data packet is converted to the Ethernet data bag, and send to terminal after the Ethernet data bag that Digital Television unit, EOC unit send is converted to wireless data packet.
2. integration of three networks digital TV set-top box according to claim 1 is characterized in that, described tuner also carries out frequency inverted to the HFC signal that receives, and high-frequency signal is converted to intermediate-freuqncy signal provides received signal to the Digital Television unit.
3. integration of three networks digital TV set-top box according to claim 1 is characterized in that, described tuner also carries out frequency inverted to the HFC signal that receives, and intermediate-freuqncy signal is converted to high-frequency signal sends to the HFC net.
4. according to claim 1 or 2 or 3 described integration of three networks digital TV set-top box, it is characterized in that described terminal is computer, mobile phone or Ethernet embedded system.
5. according to claim 1 or 2 or 3 described integration of three networks digital TV set-top box, it is characterized in that:
Described EOC unit is CABLE MODEM, MOCA EOC terminal or HOMEPLUSEOC terminal;
And/or
Described radio interface unit comprises any one or the combination in any in WiFi interface unit, WAPI interface unit, the bluetooth interface units.
6. the implementation method of an integration of three networks digital TV set-top box, it is characterized in that, described integration of three networks digital TV set-top box comprises: net the two-way tuner that is connected with HFC, with the two-way EOC unit that is connected of described tuner, with two-way Digital Television unit and the radio interface unit that is connected in described EOC unit, described Digital Television unit is connected with described radio interface unit is two-way, and the Digital Television input of described Digital Television unit is connected with the Digital Television output of described tuner;
Described implementation method comprises:
Tuner receives the digital television signal of HFC net, and this digital television signal is sent to described Digital Television unit plays;
The Digital Television unit sends the Ethernet data bag that obtains program to the EOC unit, and the EOC unit is sent to front end by tuner after converting this Ethernet data bag to the HFC signal; After tuner receives the HFC signal that front end returns, according to the channel that receives this HFC signal, this HFC signal is sent to Digital Television unit or EOC unit, the EOC unit sends to the Digital Television unit after this HFC conversion of signals is become the Ethernet data bag, and the Digital Television unit is play the HFC signal or the Ethernet data bag that receive;
The program request instruction that the radio interface unit receiving terminal sends, with the program request instruction transformation that receives is to send to described Digital Television unit behind the Ethernet data bag, and described Digital Television unit obtains programme information and plays from described terminal by described radio interface unit;
The wireless data packet that the radio interface unit receiving terminal sends sends to the EOC unit after this wireless data packet is converted to the Ethernet data bag, and the EOC unit is sent to front end by tuner after this Ethernet data bag is converted to the HFC signal; The HFC signal of tuner receiving front-end feedback also is transmitted to the EOC unit, the EOC unit is to send to radio interface unit behind the Ethernet data bag with this HFC conversion of signals, and radio interface unit sends to described terminal after this Ethernet data bag is converted to wireless data packet.
7. the implementation method of integration of three networks digital TV set-top box according to claim 6, it is characterized in that, when described Digital Television unit can't be when described terminal be obtained programme information, described Digital Television unit sends the Ethernet data bag that obtains program to the EOC unit, and the EOC unit is sent to front end by tuner after converting this Ethernet data bag to the HFC signal; After tuner receives the HFC signal that front end returns, according to the channel that receives this HFC signal, this HFC signal is sent to Digital Television unit or EOC unit, the EOC unit sends to the Digital Television unit after this HFC conversion of signals is become the Ethernet data bag, and the Digital Television unit is play the HFC signal or the Ethernet data bag that receive.
8. according to the implementation method of claim 6 or 7 described integration of three networks digital TV set-top box, it is characterized in that, described tuner also carries out frequency inverted to the HFC signal that receives, and high-frequency signal is converted to intermediate-freuqncy signal provides received signal to the Digital Television unit.
9. according to the implementation method of claim 6 or 7 described integration of three networks digital TV set-top box, it is characterized in that described tuner also carries out frequency inverted to the HFC signal that receives, intermediate-freuqncy signal is converted to high-frequency signal to HFC net emission return path signal.
10. according to the implementation method of claim 6 or 7 described integration of three networks digital TV set-top box, it is characterized in that;
Described terminal is computer, mobile phone or Ethernet embedded system;
And/or
Described EOC unit is CABLE MODEM, MOCA EOC terminal or HOMEPLUSEOC terminal;
And/or
Described radio interface unit comprises any one or the combination in any in WiFi interface unit, WAPI interface unit, the bluetooth interface units.
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