CN102098558B - Three-network convergence digital television (TV) set top box and implementation method thereof - Google Patents

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

Integration of three networks DTV STB and its implementation

Technical field

The present invention relates to the implementation method of a kind of integration of three networks DTV STB and a kind of integration of three networks DTV STB.

Background technology

The existing implementation that possesses the DTV STB of ethernet feature has following several kinds usually: one of which, the way of output of a RJ45 cable is provided, is connected to Ethernet through wire cable; When using this mode,, tend to receive 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, DTV STB adopts the connection wireless router, carries out data interaction through wireless mode, and the STB that this mode designs can't provide broadband internet to insert to the terminal; Three, provide the ADSL DTV and insert, this mode only can provide the 8M bandwidth, and the 8M bandwidth only can be broadcast one road HDTV; 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 receive the puzzlement of wiring problem, bring great not convenient property.

Summary of the invention

To the problem that exists in the above-mentioned prior art; The object of the present invention is to provide a kind of integration of three networks DTV STB and its implementation; It can make the terminal need not to be laid with spider lines promptly can access network based on ethernet; Three net service functions, the realization integration of three networks, facility and the saving cost of digital TV network, the Internet, voice network are provided through a top box of digital machine.

For achieving the above object, the present invention adopts following technical scheme:

A kind of integration of three networks DTV STB; Comprise: net the two-way tuner that is connected with HFC; With the two-way EOC unit that is connected of said tuner; With two-way DTV unit and the radio interface unit that is connected in said EOC unit, said DTV unit is connected with said radio interface unit is two-way, and the DTV input of said DTV unit is connected with the DTV output of said tuner;

Said 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 DTV 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 said EOC unit; Be sent to tuner after being used for converting the Ethernet data bag that DTV unit, radio interface unit send into 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 DTV unit or radio interface unit;

Said 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 DTV unit or EOC unit after converting this wireless data packet into the Ethernet data bag, and send to the terminal after converting the Ethernet data bag that DTV unit, EOC unit send into wireless data packet.

A kind of implementation method of integration of three networks DTV STB; Said integration of three networks DTV STB comprises: net the two-way tuner that is connected with HFC; With the two-way EOC unit that is connected of said tuner; With two-way DTV unit and the radio interface unit that is connected in said EOC unit, said DTV unit is connected with said radio interface unit is two-way, and the DTV input of said DTV unit is connected with the DTV output of said tuner;

Said implementation method comprises:

Tuner receives the digital television signal of HFC net, and this digital television signal is sent to said DTV unit plays;

The DTV unit sends the Ethernet data bag that obtains program to the EOC unit, and the EOC unit is sent to front end through 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 DTV unit or EOC unit; The EOC unit sends to the DTV unit after this HFC conversion of signals is become the Ethernet data bag, and the DTV 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 said DTV unit behind the Ethernet data bag, and said DTV unit obtains programme information through said radio interface unit and plays from said terminal;

The wireless data packet that the radio interface unit receiving terminal sends sends to the EOC unit after converting this wireless data packet into the Ethernet data bag, and the EOC unit is sent to front end through tuner after converting this Ethernet data bag into 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 said terminal after converting this Ethernet data bag into wireless data packet.

Scheme according to the invention described above; It is realized netting the mutual of front end with HFC by tuner, and when realizing common DTV playing function, the digital television signal that tuner receives can directly be exported to the DTV unit and play; Realize the conversion between Ethernet data bag and the HFC signal through the EOC unit; Through the radio communication at terminals such as conversion, realization and computer between radio interface unit realization wireless data packet and the Ethernet data bag, mobile phone, 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 through visit HFC net; And radio interface unit provides the wireless access at terminal, thereby the terminal need not to be laid with under the situation of spider lines; Promptly can pass through DTV STB access network based on ethernet of the present invention; Can use simultaneously this DTV STB and realize the available various functions of Ethernet, VOIP function for example, thus the service function of digital TV network, the Internet, three networks of voice network can be provided through a DTV STB; Realization three net physics merge, convenient convenient and saving cost.

Description of drawings

Fig. 1 is the structural representation of DTV STB of the present invention.

Embodiment

Below with the mode of a specific embodiment the present invention program is elaborated.

As shown in Figure 1; Be the structural representation of a specific embodiment of integration of three networks DTV STB of the present invention, it includes tuner, DTV unit, EOC (Ethernet over Coax, the ether data are through the coaxial cable transmission) unit, radio interface unit; Wherein, The two-way connection between the two-way connection of tuner and HFC (NybridFiber-Coaxial, HPA Hybrid Fiber Coaxial) net, EOC unit and tuner; The DTV input of DTV unit is connected with the DTV output of tuner; The two-way connection between DTV unit and the EOC unit, the two-way connection between DTV 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 DTV 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 converting the Ethernet data bag that DTV unit, radio interface unit send into 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 DTV 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 DTV unit or EOC unit after converting this wireless data packet into the Ethernet data bag, and send to the terminal after converting the Ethernet data bag that DTV unit, EOC unit send into wireless data packet.

Integration of three networks DTV STB according to the invention described above; Realized netting the mutual of front end with HFC by tuner, when realizing common DTV playing function, the digital television signal that tuner receives can directly be exported to the DTV unit and play; Realize the conversion between Ethernet data bag and the HFC signal through the EOC unit; Through the radio communication at terminals such as conversion, realization and computer between radio interface unit realization wireless data packet and the Ethernet data bag, mobile phone, 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 through visit HFC net; And radio interface unit provides the wireless access at terminal, thereby the terminal need not to be laid with under the situation of spider lines; Promptly can pass through DTV STB access network based on ethernet of the present invention; Can use simultaneously this DTV STB and realize the available various functions of Ethernet, VOIP function for example, thus the service function of digital TV network, the Internet, three networks of voice network can be provided through a DTV STB; Realization three net physics merge, convenient convenient and saving cost.

Below just be elaborated to the concrete course of work of the integration of three networks DTV STB of using the invention described above.

When realizing common, general DTV playing function; The digital television signal of HFC net is sent into tuner, directly is transmitted to the DTV 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 DTV unit sends the Ethernet data bag that obtains program to the EOC unit, and the EOC unit is sent to front end through 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 DTV unit to be play; Or this HFC signal sent to the EOC unit, and the EOC unit sends to the DTV unit after this HFC conversion of signals is become the Ethernet data bag, and the DTV unit is play the HFC signal or the Ethernet data bag that receive.

After tuner receives digital television signal, also can transfer high-frequency signal to intermediate-freuqncy signal and export to the DTV unit,, reduce the components and parts cost to improve the receptivity of DTV unit.

According to the integration of three networks DTV STB of 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 is sent; After being converted into the HFC signal; Be transferred to the front end of hfc plant through tuner, but because hfc plant access band Ethernet itself, thereby can realize WiMAX function in view of the above by DTV STB.The network information (HFC signal) that feeds back to through 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 the terminal after converting the Ethernet data bag that receives into corresponding wireless data packet.If need on DTV, show, the Ethernet data bag through after the EOC cell translation can also send to the DTV unit, and demonstration can directly be exported to the Ethernet data bag in the DTV unit.

Integration of three networks DTV STB of the present invention, owing to be to net access network based on ethernet through the EOC unit by HFC, the access bandwidth of EOC unit is 100M; And the terminal is to carry out alternately with this integration of three networks DTV STB through 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 DTV STB of the present invention, can also realize a multicast function, put sowing time; User side sends the program request instruction through the terminal to DTV STB; This program request instruction is sent with the mode of wireless data packet, after radio interface unit receives, is to send to the DTV unit behind the Ethernet data bag with the program request instruction transformation that receives; The DTV unit receives the back and gets into the program request function, and (for example video information etc.) plays to obtain relevant programme information from the terminal.

If the DTV unit can't obtain corresponding programme information from the terminal; Then the DTV 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) through tuner after converting this Ethernet data bag into 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 DTV unit play, or, this HFC signal is transferred to the EOC unit; The EOC unit is to export to the DTV unit behind the Ethernet data bag to play output with this HFC conversion of signals, realizes the playing function of DTV in view of the above.

According to the DTV STB of the invention described above, because high bandwidth is provided, therefore; This DTV STB 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 through a DTV STB service function of digital TV network, the Internet, three networks of voice network can be provided, realize that three net physics merge.

When functions such as above-mentioned realization the Internet access, program request, DTV broadcast; The HFC signal of passing back for front end; Tuner transfers high-frequency signal to intermediate-freuqncy signal and exports to the DTV unit, improves the receptivity of DTV 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, redispatches to the HFC net, 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 DTV STB of the invention described above, the present invention also provides a kind of implementation method of integration of three networks DTV STB, and concrete performing step can not repeat them here as stated.

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 within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection range of the present invention.

Claims (10)

1. integration of three networks DTV STB; 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 said tuner, with two-way DTV unit and the radio interface unit that is connected in said EOC unit; Said DTV unit is connected with said radio interface unit is two-way, and the DTV input of said DTV unit is connected with the DTV output of said tuner;

Said 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 DTV 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 said EOC unit; Be sent to tuner after being used for converting the Ethernet data bag that DTV unit, radio interface unit send into 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 DTV unit or radio interface unit;

Said 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 DTV unit or EOC unit after converting this wireless data packet into the Ethernet data bag, and send to the terminal after converting the Ethernet data bag that DTV unit, EOC unit send into wireless data packet.

2. integration of three networks DTV STB according to claim 1 is characterized in that, said tuner also carries out frequency inverted to the HFC signal that receives, and converts high-frequency signal into intermediate-freuqncy signal and to the DTV unit reception signal is provided.

3. integration of three networks DTV STB according to claim 1 is characterized in that, said tuner also carries out frequency inverted to the HFC signal that receives, and converts intermediate-freuqncy signal into high-frequency signal and sends to the HFC net.

4. according to claim 1 or 2 or 3 described integration of three networks DTV STBs, it is characterized in that said terminal is computer, mobile phone or Ethernet embedded system.

5. according to claim 1 or 2 or 3 described integration of three networks DTV STBs, it is characterized in that:

Said EOC unit is CABLE MODEM, MOCA EOC terminal or HOMEPLUS EOC terminal;

And/or

Said radio interface unit comprises any 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 DTV STB; It is characterized in that; Said integration of three networks DTV STB comprises: net the two-way tuner that is connected with HFC, with the two-way EOC unit that is connected of said tuner, with two-way DTV unit and the radio interface unit that is connected in said EOC unit; Said DTV unit is connected with said radio interface unit is two-way, and the DTV input of said DTV unit is connected with the DTV output of said tuner;

Said implementation method comprises:

Tuner receives the digital television signal of HFC net, and this digital television signal is sent to said DTV unit plays;

The DTV unit sends the Ethernet data bag that obtains program to the EOC unit, and the EOC unit is sent to front end through 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 DTV unit or EOC unit; The EOC unit sends to the DTV unit after this HFC conversion of signals is become the Ethernet data bag, and the DTV 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 said DTV unit behind the Ethernet data bag, and said DTV unit obtains programme information through said radio interface unit and plays from said terminal;

The wireless data packet that the radio interface unit receiving terminal sends sends to the EOC unit after converting this wireless data packet into the Ethernet data bag, and the EOC unit is sent to front end through tuner after converting this Ethernet data bag into 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 said terminal after converting this Ethernet data bag into wireless data packet.

7. the implementation method of integration of three networks DTV STB according to claim 6; It is characterized in that; When said DTV unit can't be when said terminal obtains programme information; Said DTV unit sends the Ethernet data bag that obtains program to the EOC unit, and the EOC unit is sent to front end through 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 DTV unit or EOC unit; The EOC unit sends to the DTV unit after this HFC conversion of signals is become the Ethernet data bag, and the DTV 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 DTV STBs; It is characterized in that; Said tuner also carries out frequency inverted to the HFC signal that receives, and converts high-frequency signal into intermediate-freuqncy signal and to the DTV unit reception signal is provided.

9. according to the implementation method of claim 6 or 7 described integration of three networks DTV STBs, it is characterized in that said tuner also carries out frequency inverted to the HFC signal that receives, convert intermediate-freuqncy signal into 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 DTV STBs, it is characterized in that:

Said terminal is computer, mobile phone or Ethernet embedded system;

And/or

Said EOC unit is CABLE MODEM, MOCA EOC terminal or HOMEPLUS EOC terminal;

And/or

Said radio interface unit comprises any or the combination in any in WiFi interface unit, WAPI interface unit, the bluetooth interface units.

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