CN101505364B - Set-top box based on wireless broadcast network and wireless access network - Google Patents
Set-top box based on wireless broadcast network and wireless access network Download PDFInfo
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Abstract
The invention discloses a set-top box based on a wireless broadcasting network or a wireless access network, which adopts a television receiver module to receive wireless broadcasting network signals and a modem module to receive wireless access network signals, namely the top-set box can access to the wireless broadcasting network and the wireless access network simultaneously and integrate a broadcasting network and a mobile access network, thereby not only ensuring the real-time of mobile watching and browsing, but also ensuring the quality and the effect of two services of watching television programs and browsing web pages.
Description
Technical field
The present invention relates to set-top box, relate in particular to a kind of set-top box based on wireless broadcast network and Radio Access Network.
Background technology
By using set-top box, the user can watch digital television program and carry out activities such as interactive digital amusement, education on existing simulated television.
Along with the development of mobile radio telecommunications technology, many novel business are introduced into gradually, mobile TV, and getting online without being tethered to a cable is born under this environment exactly and begins trend popularizes, and the trend that merges and develop is arranged gradually.The two business realizing schemes of traditional cable set top box, it is the function that TV and browsing page are watched in realization on the transmission line of cable TV network, because the bandwidth of single transmission line is limit, under the prerequisite that has guaranteed the normal tv function, speed of surfing the Internet and effect are all had a greatly reduced quality.In addition, because this set-top box needs the wiring of cable television network, go up inconvenience so use.
Use the set-top box of Access Network to realize browsing page and watch TV functions on single Access Network, two kinds of business also the contention bandwidth situation can occur, and effect is undesirable.The IPTV though the later stage has arisen at the historic moment (Internet Protocol Television, Web TV) technology, very high to the demand of transmission bandwidth, and can not accomplish to move anywhere or anytime to watch.And the IPTV TV programme is to be provided by private companies, and programme variety is few, the expense height.
Summary of the invention
The technical problem to be solved in the present invention is exactly that the bandwidth constraints that solves single transmission line in the prior art causes the problem that can not guarantee to watch TV and two kinds of quality of services of browsing page and effect simultaneously, a kind of set-top box based on wireless broadcast network and Radio Access Network is proposed, can not only guarantee to move the real-time of watching and browsing, can also guarantee the quality and the effect of two business.
In order to solve the problems of the technologies described above, the invention provides a kind of set-top box based on wireless broadcast network and Radio Access Network, comprise common treatment module, TV-set receiving module and modulation module; Described TV-set receiving module links to each other with described common treatment module respectively with the modulation module;
The channel information that described common treatment module is used for receiving sends to TV-set receiving module; And, the digital television signal that receives is converted to the video/audio signal of simulated television, export to television set; The website information that also is used for receiving sends to the modulation module; And, convert the info web that receives to video/audio signal, export to television set;
Described TV-set receiving module is used for receiving according to described channel information the radiofrequency signal of wireless broadcast network corresponding channel, and converts digital television signal to, sends to the common treatment module;
Described modulation module is used for radiofrequency signal is encoded, is modulated into to described website information, sends to Radio Access Network; And, obtain corresponding radiofrequency signal from Radio Access Network, demodulation, decoding obtain info web, send to the common treatment module.
Further, described set-top box also can have following characteristics:
The common treatment module comprises: remote controller input interface, master control processing sub, TV player, TV encoder, TV output interface, internet browser client, graphic process unit;
Wherein, described remote controller input interface is used to receive the channel information or the website information of remote controller input, sends to the master control processing sub;
Described master control processing sub is used for described channel information is sent to TV-set receiving module; Also be used for described website information is sent to the internet browser client;
Described TV player is used to receive the digital television signal that TV-set receiving module sends, and sends to the TV encoder; And the digital video-audio signal of the info web that the reception graphic process unit sends sends to the TV encoder;
The digital video-audio conversion of signals that described TV encoder is used for the digital television signal that will receive and info web becomes the video and audio signal of simulation, exports to television set through the TV output interface;
Described internet browser client is used for described website information is sent to the modulation module; And, receive the info web that described modulation module sends, send to graphic process unit;
It is the digital video-audio signal that described graphic process unit is used for described info web is carried out graphics process, sends to the TV player.
Further, described set-top box also can have following characteristics:
Described common treatment module also comprises video output adjusting submodule, and described video output is regulated submodule and is used for according to the control of master control processing sub the video output effect being adjusted.
Further, described set-top box also can have following characteristics:
Described TV-set receiving module comprises base band submodule and radio frequency submodule,
Described base band submodule is used for receiving channels information, and sends to the radio frequency submodule; And the radiofrequency signal of received RF submodule is demodulated into baseband signal, is the digital television signal of Motion Picture Experts Group's mpeg format with baseband signal decoding, sends to the common treatment module;
Described radio frequency submodule is used for receiving according to described channel information the radiofrequency signal of wireless broadcast network corresponding channel, sends to the base band submodule.
Further, described set-top box also can have following characteristics:
Described modulation module comprises base band submodule, radio frequency submodule,
Described base band submodule is encoded to the website information that the common treatment module sends, and is converted to baseband signal, and baseband signal is modulated into radiofrequency signal, sends to the radio frequency submodule; And the radiofrequency signal that the received RF submodule sends is demodulated into baseband signal to described radiofrequency signal, and described baseband signal is carried out channel-decoding, deciphering and looked audio decoder, with the info web that obtains, sends to the common treatment module;
Described radio frequency submodule is used to receive the radiofrequency signal that the base band submodule sends, and sends to Radio Access Network; And, obtain corresponding radiofrequency signal from Radio Access Network, send to the base band submodule.
Further, described set-top box also can have following characteristics:
Described channel information is meant: the user is by the channel of remote controller input.
Further, described set-top box also can have following characteristics:
Described TV-set receiving module is based on ground digital television broadcast DVB-T standard.
Further, described set-top box also can have following characteristics:
Described TV-set receiving module is based on handheld device digital television broadcasting DVB-H standard.
Further, described set-top box also can have following characteristics:
Interface between interface between described common treatment module and the TV-set receiving module, common treatment module and the modulation module adopts the general-purpose serial bus USB interface.
Further, described set-top box also can have following characteristics:
Described modulation module sends to the common treatment module with described info web by point-to-point protocol PPP bag.
Set-top box of the present invention need not wiring, can satisfy TV reception and the requirement that surfs the web whenever and wherever possible, compares with the prior art scheme, and the main beneficial effect of the present invention is:
1, surfs the Net and browse TV functions and can finish by single terminal end;
2, TV program can be many for the user selected program kind from the CHINA RFTCOM Co Ltd wireless television signal, the signal bandwidth abundance, and the display resolution height, and need not the additional networks construction;
3, adopt the S terminal interface form of standard, can and a large amount of existing equipment interconnected, be user-friendly to.
Description of drawings
Fig. 1 is the set-top box schematic diagram of the embodiment of the invention;
Fig. 2 is the common treatment module diagram of the embodiment of the invention;
Fig. 3 is the TV-set receiving module schematic diagram of the embodiment of the invention;
Fig. 4 is the modulation module diagram of the embodiment of the invention;
Fig. 5 is the set-top box schematic diagram that the present invention one uses example.
Embodiment
In the present invention, adopt TV-set receiving module to receive the wireless broadcast network signal, modulation (Modem) module receives Radio Access Network, be that set-top box of the present invention can insert wireless broadcast network and Radio Access Network simultaneously, TV reception and the requirement that surfs the web are whenever and wherever possible satisfied in the just two net unifications of radio network and mobile Access Network.
The present invention is described in detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 1, the set-top box of the embodiment of the invention comprises: common treatment module, TV-set receiving module, modulation module;
Wherein, described common treatment module is used to receive the channel information of user's input, and this information is sent to described TV-set receiving module; And, receive the digital television signal that described TV-set receiving module sends, convert digital television signal the video and audio signal of simulated television to, export to television set; Described common treatment module also is used to receive the website information of user's input, and this website information is sent to the modulation module; And, receive the Internet info web that described modulation module sends, convert described info web to video and audio signal, export to television set;
Described TV-set receiving module is used for receiving according to described channel information the radiofrequency signal of wireless broadcast network corresponding channel, and converts digital television signal to, sends to the common treatment module;
Described modulation module is used for the website information that the common treatment module sends is encoded, and is converted to baseband signal, and baseband signal is modulated into radiofrequency signal, sends to Radio Access Network; And, to obtain corresponding radiofrequency signal and be demodulated into baseband signal from Radio Access Network, baseband signal is decoded obtains the Internet info web, sends to the common treatment module.
Wherein, described channel information is meant: the user is by the channel of remote controller input;
The interface of described common treatment module and TV-set receiving module, modulation module can adopt USB (Universal Serial Bus, USB) interface.
Described TV-set receiving module can be based on different DVB (Digital Video Broadcasting, digital video broadcasting) standard, such as DVB-T (Digital Video Broadcasting-Terrestrial, ground digital television broadcast) standard or DVB-H (Digital Video Broadcasting Handheld, handheld device digital television broadcasting) standard.
Described modulation module sends to the common treatment module with described Internet info web by PPP (Point to PointProtocol, point-to-point protocol) bag.
As shown in Figure 2, the common treatment module specifically comprises: submodule is regulated in remote controller input interface, master control processing sub, TV player, TV encoder, TV output interface, internet browser client, graphic process unit, video output;
Wherein, described remote controller input interface is used to receive the channel information or the website information of remote controller input, sends to the master control processing sub;
Described master control processing sub is used for the channel information of remote controller input is sent to TV-set receiving module; Described master control processing sub also is used for the website information of remote controller input is sent to the internet browser client; Described master control processing sub also is further used for control of video output adjusting submodule the video output effect is adjusted;
Described TV player is used to receive the digital television signal that TV-set receiving module sends, and sends to the TV encoder; And the digital video-audio signal of the info web that the reception graphic process unit sends sends to the TV encoder;
The digital video-audio conversion of signals that described TV encoder is used for the digital television signal that will receive and info web becomes the video and audio signal of simulation, exports to television set through the TV output interface;
Described internet browser client is used for described website information is sent to described modulation module; And, receive the Internet info web that described modulation module sends, send to graphic process unit;
Described graphic process unit is used for that described Internet info web is carried out figure to be quickened to be treated to the digital video-audio signal that is suitable for the TV player, sends to the TV player;
Described video output is regulated submodule and is used for according to the control of master control processing sub the video output effect being adjusted.
Described TV output interface comprises video output interface and audio output interface, and described video output interface can adopt the S-Video terminal, and audio output interface can adopt general Line Out interface.
As shown in Figure 3, TV-set receiving module comprises base band submodule and radio frequency submodule,
Wherein, base band submodule receiving channels information, and send to the radio frequency submodule; And the radiofrequency signal of received RF submodule is demodulated into baseband signal, is the digital television signal of MPEG (MovingPicture Expert Group, Motion Picture Experts Group) form with baseband signal decoding, sends to the common treatment module;
Described radio frequency submodule is used for receiving according to described channel information the radiofrequency signal of wireless broadcast network corresponding channel, sends to the base band submodule.
As shown in Figure 4, the modulation module comprises base band submodule, radio frequency submodule,
Wherein, described base band submodule is encoded to the website information that the common treatment module sends, and is converted to baseband signal, and baseband signal is modulated into radiofrequency signal, sends to the radio frequency submodule; And the radiofrequency signal that the received RF submodule sends is demodulated into baseband signal to described radiofrequency signal, and described baseband signal is carried out channel-decoding, deciphering and looked audio decoder, and the Internet info web that obtains is sent to the common treatment module;
Described radio frequency submodule is used to receive the radiofrequency signal that the base band submodule sends, and sends to Radio Access Network; And, obtain corresponding radiofrequency signal from Radio Access Network, send to the base band submodule.
Is example with TV-set receiving module based on the DVB-T standard, employing receives and passes through two transmission link voice and packet data concurrent service modes of 2G or 3G Modem online based on the mobile wireless radio and television of DVB-T, the DVB-T receiving chip of leading up to receives from the TV signal of ground digital radio broadcasting net and through COFDM (coded orthogonal frequency division multiplexing, Coded Orthogonal Frequency Division Multiplexing (COFDM)) demodulation, mpeg decode, convert TV RF signals to digital television signal, give the TV encoder by universal processor module with digital television signal and carry out the TV encoding process, convert digital television signal to anolog TV signals, by S-Video light tone separation terminal and Line Out video and audio signal are sent again, and receive user's selection by remote controller, the 2G/3G network is inserted by the modulation module in another road, reaches the purpose of browsing Internet by remote controller on video screen.
As shown in Figure 5, for the reception that realizes the mobile wireless radio and television with browse Internet, need common treatment module, DVB-T TV-set receiving module in the set-top box to match with the modulation module.
Wherein modulation module realizes the function of wireless access, comprising: the radio frequency submodule, be used to receive and dispatch radiofrequency signal, and the radiofrequency signal that receives is sent to the base band submodule, for its processing; And the base band submodule, be used for the website information that receives coding, be modulated into radiofrequency signal and send to the radio frequency submodule; And, the radiofrequency signal that receives is carried out demodulation, channel-decoding, deciphered, looks audio decoder.
DVB-T TV-set receiving module and modulation module are similar, but what realize is forward direction TV signal receiving function, and this system comprises: the radio frequency submodule is used to receive the DVB-T TV RF signals, the radiofrequency signal of receiving is sent to the base band submodule, for its processing; And the base band submodule, be used for the forward direction radio television signal is carried out the decoding (MPEG) of demodulation (COFDM) and baseband signal.
Modulation module and DVB-T TV-set receiving module externally provide the USB interface of standard, and defer to " Universal Serial Bus Class Definitions for Communication Devices " (the USB class definition of communication apparatus) standard, CDC (CommunicationDevice Class, communication apparatus class) equipment as a standard is realized.
Common treatment module one end links to each other with the modulation module with the DVB-T TV-set receiving module by USB Host Controller (USB master controller), drives the peripheral hardware operate as normal of USB interface.The other end links to each other with remote controller with TV with remote controller interface by the TV output interface respectively, and realization is to the output of TV signal and accept control of remote controller.On the common treatment module, need to move the internet browser client software, and (be graphic process unit by the figure speed-up chip, Graphic Processing Unit, abbreviate GPU as) info web and client software UI (User Interface to receiving, user interface) quickens to handle, by the TV output module info web is presented on the TV screen, the network address through the remote controller input need be visited can realize the function of browsing through TV set internet.
Specifically, for the DVB-T television receiving function, master control processing module, TV player, TV encoder and TV output interface by DVB-T TV-set receiving module and common treatment module are realized, the mobile broadcast television signal is exported to broadcaster by content supplier, and broadcaster sends television content by radio network.The DVB-T TV-set receiving module is received corresponding TV signal according to the user by the channel of remote controller input, carries out radio frequency processing and base band demodulating by the DVB-T physical layer according to the DVB-T protocol stack earlier, the mpeg audio video is decoded again.The TV player of common treatment module outputs to the TV encoder according to the instruction of master control processing module with audio and video streams, gives television set by S-Video terminal and Line Out at last.
The Internet function of browse receives realization by master control processing module, internet browser client, TV player, TV encoder, graphic process unit and the remote controller input interface of 2G/3G modulation module and common treatment module.At first, the common treatment module need be moved the internet browser client software, and by graphic process unit (figure speed-up chip) the client software figure is quickened to handle, by TV encoder and TV player with graphical display on the TV screen.Network address through the remote controller input need be visited can realize the function of browsing through TV set internet.The Internet function of browse has two flow directions, forward direction is by the modulation module, the internet browser client, graphic process unit, the TV encoder, TV player and TV output interface are realized, the radiofrequency signal of Internet info web is sent to the modulation module by the 2G/3G network, through the 2G/3G of modulation module physical layer, 2G/3G protocol stack and 2G/3G application layer, described Internet info web is sent on the internet browser client software that operates in the common treatment module, and passes through graphic process unit, the TV encoder, TV player and TV output interface are presented to the user; And oppositely realize by remote controller interface, internet browser client and modulation module, the user uses a teleswitch and import the network address that needs visit on internet browser, insert Internet through 2G/3G modulation module, have access to the webpage that needs.Master control processing module is in addition also regulated submodule by video output the TV output effect is adjusted.
DVB-T television reception chip receives the DVB-T TV signal from the mobile wireless radio network, adopt the common treatment module to finish TV and output to watching of common TV screen, can insert the 2G/3G network by the modulation module simultaneously, and the internet browser software that on the common treatment module, moves, use general television set screen and remote controller to realize surfing the web, thereby satisfy the function of television-viewing, the two net application of web page browsing unification under the mobile wireless environment via set-top box.
, repeat no more with similar based on the TV-set receiving module of DVB-H standard and other standard based on the TV-set receiving module of DVB-T standard herein.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the set-top box based on wireless broadcast network and 2G/3G network is characterized in that, comprises common treatment module, TV-set receiving module and modulation module; Described TV-set receiving module links to each other with described common treatment module respectively with the modulation module;
The channel information that described common treatment module is used for receiving sends to TV-set receiving module; And, the digital television signal that receives is converted to the video/audio signal of simulated television, export to television set; The website information that also is used for receiving sends to the modulation module; And, convert the info web that receives to video/audio signal, export to television set;
Described TV-set receiving module is used for receiving according to described channel information the radiofrequency signal of wireless broadcast network corresponding channel, and converts digital television signal to, sends to the common treatment module;
Described modulation module is used for radiofrequency signal is encoded, is modulated into to described website information, sends to the 2G/3G network; And, obtain corresponding radiofrequency signal from the 2G/3G network, demodulation, decoding obtain info web, send to the common treatment module.
2. set-top box as claimed in claim 1 is characterized in that, the common treatment module comprises: remote controller input interface, master control processing sub, TV player, TV encoder, TV output interface, internet browser client, graphic process unit;
Wherein, described remote controller input interface is used to receive the channel information or the website information of remote controller input, sends to the master control processing sub;
Described master control processing sub is used for described channel information is sent to TV-set receiving module; Also be used for described website information is sent to the internet browser client;
Described TV player is used to receive the digital television signal that TV-set receiving module sends, and sends to the TV encoder; And the digital video-audio signal of the info web that the reception graphic process unit sends sends to the TV encoder;
The digital video-audio conversion of signals that described TV encoder is used for the digital television signal that will receive and info web becomes the video and audio signal of simulation, exports to television set through the TV output interface;
Described internet browser client is used for described website information is sent to the modulation module; And, receive the info web that described modulation module sends, send to graphic process unit;
It is the digital video-audio signal that described graphic process unit is used for described info web is carried out graphics process, sends to the TV player.
3. set-top box as claimed in claim 2 is characterized in that, described common treatment module also comprises video output adjusting submodule, and described video output is regulated submodule and is used for according to the control of master control processing sub the video output effect being adjusted.
4. set-top box as claimed in claim 1 is characterized in that, described TV-set receiving module comprises base band submodule and radio frequency submodule,
Described base band submodule is used for receiving channels information, and sends to the radio frequency submodule; And the radiofrequency signal of received RF submodule is demodulated into baseband signal, is the digital television signal of Motion Picture Experts Group's mpeg format with baseband signal decoding, sends to the common treatment module;
Described radio frequency submodule is used for receiving according to described channel information the radiofrequency signal of wireless broadcast network corresponding channel, sends to the base band submodule.
5. set-top box as claimed in claim 1 is characterized in that, described modulation module comprises base band submodule, radio frequency submodule,
Described base band submodule is encoded to the website information that the common treatment module sends, and is converted to baseband signal, and baseband signal is modulated into radiofrequency signal, sends to the radio frequency submodule; And the radiofrequency signal that the received RF submodule sends is demodulated into baseband signal to described radiofrequency signal, and described baseband signal is carried out channel-decoding, deciphering and looked audio decoder, with the info web that obtains, sends to the common treatment module;
Described radio frequency submodule is used to receive the radiofrequency signal that the base band submodule sends, and sends to the 2G/3G network; And, obtain corresponding radiofrequency signal from the 2G/3G network, send to the base band submodule.
6. as claim 1 or 2 or 4 described set-top box, it is characterized in that described channel information is meant: the user is by the channel of remote controller input.
7. as any described set-top box in the claim 1～5, it is characterized in that described TV-set receiving module is based on ground digital television broadcast DVB-T standard.
8. as any described set-top box in the claim 1～5, it is characterized in that described TV-set receiving module is based on handheld device digital television broadcasting DVB-H standard.
9. as any described set-top box in the claim 1～5, it is characterized in that the interface between the interface between described common treatment module and the TV-set receiving module, common treatment module and the modulation module adopts the general-purpose serial bus USB interface.
10. as any described set-top box in the claim 1～5, it is characterized in that described modulation module sends to the common treatment module with described info web by point-to-point protocol PPP bag.
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| CN2009100069928A CN101505364B (en) | 2009-02-18 | 2009-02-18 | Set-top box based on wireless broadcast network and wireless access network |
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| CN2009100069928A CN101505364B (en) | 2009-02-18 | 2009-02-18 | Set-top box based on wireless broadcast network and wireless access network |
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| CN101505364A CN101505364A (en) | 2009-08-12 |
| CN101505364B true CN101505364B (en) | 2011-10-26 |
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| WO2011125066A1 (en) * | 2010-04-09 | 2011-10-13 | Balajee Rajaram | A cost effective communication device |
| CN102098558B (en) * | 2011-01-29 | 2012-10-10 | 广州杰赛科技股份有限公司 | Three-network convergence digital television (TV) set top box and implementation method thereof |
| CN102821318B (en) * | 2012-09-14 | 2015-10-14 | 广州金视网络信息工程有限公司 | Digital TV set-top box |
| CN104639405A (en) * | 2013-11-13 | 2015-05-20 | 冠捷投资有限公司 | Network connection startup method of monitor |
| CN103873899A (en) * | 2014-03-18 | 2014-06-18 | 杨孝骏 | Network set-top box and network television system |
| CN104053049B (en) * | 2014-06-13 | 2018-06-19 | 天脉聚源(北京)传媒科技有限公司 | A kind of method and device for playing multimedia messages |
| CN104469460A (en) * | 2014-12-12 | 2015-03-25 | 中山大学深圳研究院 | High-integration density intelligent box for digital television |
| CN105872741A (en) * | 2015-07-13 | 2016-08-17 | 乐视致新电子科技（天津）有限公司 | Cable television program play method and device |
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