CN103297822A - Set-top box and digital signal processing method thereof for television programs - Google Patents
Set-top box and digital signal processing method thereof for television programs Download PDFInfo
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- CN103297822A CN103297822A CN2013101968547A CN201310196854A CN103297822A CN 103297822 A CN103297822 A CN 103297822A CN 2013101968547 A CN2013101968547 A CN 2013101968547A CN 201310196854 A CN201310196854 A CN 201310196854A CN 103297822 A CN103297822 A CN 103297822A
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Abstract
The invention discloses a set-top box and a digital signal processing method thereof for television programs. The digital signal processing method includes: receiving digital signals of the television programs and decoding the same to obtain a program stream; converting the program stream into a network video stream, storing the network video stream, building a network server and mapping information of the network video stream onto the network server; receiving an access request transmitted by a playing terminal, and accessing the network server; receiving a download request generated on the network server by the playing terminal, and searching the network video stream according to the download request and transmitting to play in the playing terminal. The program stream is converted into the network video steam which can be used for network transmission and transmits to play in the playing terminal, numbers and kinds of the playing terminals are not limited, different television programs can be optionally watched by different playing terminals and are not mutually affected, and requirements of different users for watching the different television programs at the same time can be met.
Description
Technical field
The present invention relates to TV technology, specially refer to set-top box and TV programme digital signal processing method thereof.
Background technology
At present, it mainly is by DVB-C(Digital Video Broadcasting-Cable that the consumer watches the mode of TV, cable digital TV broadcasting), DVB-S(Digital Video Broadcasting – Satellite, digital video broadcast-satellite), or DVB-T(Digital Video Broadcasting-Terrestrial, ground digital television broadcast) set-top box received television program digital signal, and to the processing of decoding of TV programme digital signal, be program stream with the TV programme Digital Signal Processing, owing to generally pass through AV(Audio/Video between set-top box and the TV, audio/video), YPBPR(color difference components interface) or HDMI (High Definition Multimedia Interface) (High Definition Multimedia Interface, HDMI) equisignal line links together, therefore also need the program stream after handling is converted to the AV signal, behind YPBPR signal or the HDMI signal, be transferred to television set by above-mentioned signal lines.Along with the continuous development of playback terminal technology such as mobile phone, PAD, PC, people not only are satisfied with at television set and watch TV programme, more wish and can watch TV programme at other playback terminal.But, do not possess the video decode function, can not be directly connected to the playback terminal on the set-top box for some, can't watch the TV programme of set-top box output.
Summary of the invention
Main purpose of the present invention is for providing a kind of set-top box and TV programme digital signal processing method thereof for multiple playback terminal TV reception.
The present invention proposes a kind of TV programme digital signal processing method of set-top box, comprises step:
The received television program digital signal is handled described TV programme digital signal decoding, obtains program stream;
Described program stream is converted to network video stream, stores described network video stream;
Set up the webserver, the information of described network video stream is mapped on the described webserver;
Receive the access request that playback terminal sends, visit the described webserver;
Receive the download request that described playback terminal generates at the described webserver, search described network video stream according to described download request, and be sent to described playback terminal broadcast.
Preferably, the described webserver is provided with the network address, comprises the described network address in the described access request; The described webserver comprises the UI interface, shows the information of described network video stream on the UI interface of the described webserver;
The access request that described reception playback terminal sends, the step of visiting the described webserver specifically comprises:
Receive the access request that described playback terminal sends, according to the network address of carrying in the described access request, visit the described webserver, and the UI interface that sends the described webserver is selected described network video stream to described playback terminal demonstration for described playback terminal.
Preferably, the information of the described network video stream that shows on the UI interface of the described webserver is corresponding one by one with the chained address of described network video stream, carries the chained address of the network video stream correspondence that described playback terminal chooses in the described download request;
The download request that the described playback terminal of described reception generates at the described webserver is searched described network video stream according to described download request, and is sent to the step that described playback terminal plays and specifically comprises:
Receive the download request that described playback terminal generates at the described webserver, according to the chained address of carrying in the described download request, search the network video stream that described playback terminal is chosen, and described network video stream is sent to described playback terminal broadcast.
Preferably, described to the processing of TV programme digital signal decoding, the step that obtains program stream specifically comprises:
Described TV programme digital demodulation signal is handled;
To the described TV programme digital signal scramble process after the demodulation process;
Described TV programme digital signal demultiplexing after the scramble process is handled, obtained program stream.
Preferably, send or receive data by LAN between described set-top box and the playback terminal, the internetwork connection mode of described local area network (LAN) comprises that local router connects, wireless network connects or cable network connects.
The present invention also proposes a kind of set-top box, comprising:
Signal receiving module is used for the received television program digital signal;
Decoding process module is used for described TV programme digital signal decoding is handled, and obtains program stream;
The network switch module is used for described program stream is converted to network video stream;
Memory module is used for the described network video stream of storage;
Module is set, is used for setting up the webserver, the information of described network video stream is mapped on the described webserver;
Network transmission module is used for receiving the access request that playback terminal sends, and visits the described webserver; Receive the download request that described playback terminal generates at the described webserver, search described network video stream according to described download request, and be sent to described playback terminal broadcast.
Preferably, the described webserver is provided with the network address, comprises the described network address in the described access request; The described webserver comprises the UI interface, shows the information of described network video stream on the UI interface of the described webserver;
Described network transmission module specifically is used for, receive the access request that described playback terminal sends, according to the network address of carrying in the described access request, visit the described webserver, and the UI interface that sends the described webserver is selected described network video stream to described playback terminal demonstration for described playback terminal.
Preferably, the information of the described network video stream that shows on the UI interface of the described webserver is corresponding one by one with the chained address of described network video stream, carries the chained address of the network video stream correspondence that described playback terminal chooses in the described download request;
Described network transmission module specifically also is used for, receive the download request that described playback terminal generates at the described webserver, according to the chained address of carrying in the described download request, search the network video stream that described playback terminal is chosen, and described network video stream is sent to described playback terminal broadcast.
Preferably, described decoding process module specifically comprises:
Demodulating unit is used for described TV programme digital demodulation signal is handled;
The descrambling unit is used for the described TV programme digital signal scramble process after the demodulation process;
Demultiplexing unit is used for the described TV programme digital signal demultiplexing after the scramble process is handled, and obtains program stream.
Preferably, send or receive data by LAN between described set-top box and the playback terminal, the internetwork connection mode of described local area network (LAN) comprises that local router connects, wireless network connects or cable network connects.
Set-top box among the present invention is converted to program stream the network video stream that can be used for the network transmission, and in set-top box, set up the webserver, playback terminal is connected to the webserver by internetwork connection mode, and the network video stream that sends by the network receiving set up box, value volume and range of product to playback terminal can be not restricted, and different playback terminals can select to watch different TV programme, can not influence each other between the TV programme that each playback terminal is watched yet, can satisfy the demand that different user is watched TV programme simultaneously.
Description of drawings
Fig. 1 is the flow chart of TV programme digital signal processing method first embodiment of set-top box of the present invention;
Fig. 2 is the flow chart of TV programme digital signal processing method second embodiment of set-top box of the present invention;
Fig. 3 is the flow chart of TV programme digital signal processing method the 3rd embodiment of set-top box of the present invention;
Fig. 4 is the structural representation of set-top box first embodiment of the present invention;
Fig. 5 is the structural representation of set-top box second embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
As shown in Figure 1, Fig. 1 is the flow chart of TV programme digital signal processing method first embodiment of set-top box of the present invention.In the present embodiment, the TV programme digital signal processing method of set-top box may further comprise the steps:
Step S10, the received television program digital signal;
Set-top box receives the TV programme digital signal that the cable digital TV transmitting station sends by the cable digital TV transmission channel.
Step S20 handles the TV programme digital signal decoding, obtains program stream;
Set-top box obtains program stream after the TV programme digital signal that receives is carried out demodulation, descrambling, demultiplexing processing.
Step S30 is converted to network video stream with program stream, the storage networking video flowing;
Set-top box in the present embodiment is after handling the TV programme digital signal decoding, be not that AV, YPBPR, the HDMI channel by routine is transferred to TV as conventional set-top box, but program stream is converted to the network video stream that can be used for the network transmission, be stored in the memory of set-top box.
Step S40 sets up the webserver, and the information of network video stream is mapped on the webserver;
In set-top box, set up a webserver, for the playback terminal visit, information such as the title of network video stream, type, content introduction, chained address are mapped on the webserver, the network video stream that the user can check and select oneself to want to watch from the webserver, playback terminal can also be linked on the set-top box memory that stores network video stream from the webserver.
Step S50 receives the access request that playback terminal sends, access web server;
For the ease of playback terminal addressing machine top boxs such as PAD, PC, mobile phones, the webserver has corresponding access to netwoks mechanism, and playback terminal can call the browser access webserver, or at playback terminal client is installed, by the client-access webserver.After playback terminal and the webserver connect, the UI interface of display network server on display screen, the information such as type, quantity, brief introduction of checking the network video stream of storing in the set-top box for the user.
Step S60 receives playback terminal when the download request that the webserver generates, and according to download request Network Search video flowing, and is sent to the playback terminal broadcast.
The network video stream that the user watches according to the content choice needs at the UI interface of playback terminal demonstration, after the user chooses a network video stream, playback terminal generates the corresponding download request by the webserver, be sent to set-top box through network, to inform which the network video stream that the played terminal of set-top box is chosen is, set-top box finds this network video stream, and sends to the playback terminal broadcast, watches for the user.The network here typically refers to the network connection of local area network (LAN) inside, and the playback terminal that has network access functions in local area network (LAN) can be connected to set-top box by internetwork connection modes such as local router, wireless network or cable networks and carry out data interaction.Playback terminal is with after set-top box is connected, and the network video stream that can send by the network receiving set up box is implemented on the playback terminals such as PAD, PC, mobile phone and watches TV programme.
Set-top box in the present embodiment is converted to program stream the network video stream that can be used for the network transmission, and in set-top box, set up the webserver, playback terminal is connected to the webserver by internetwork connection mode, and the network video stream that sends by the network receiving set up box, value volume and range of product to playback terminal can be not restricted, and different playback terminals can select to watch different TV programme, can not influence each other between the TV programme that each playback terminal is watched yet, can satisfy the demand that different user is watched TV programme simultaneously.
As shown in Figure 2, Fig. 2 is the flow chart of TV programme digital signal processing method second embodiment of set-top box of the present invention.Present embodiment is based on embodiment illustrated in fig. 1, wherein:
Step S50 specifically comprises:
Step S51 receives the access request that playback terminal sends, according to the network address of carrying in the access request, and access web server, UI interface to the playback terminal of concurrent SCN Space Cable Network server shows, selects network video stream for playback terminal.
The webserver is provided with the network address, comprise the network address in the access request, playback terminal can call browser fan-in network address and be connected on the webserver, or in client the network address is set, by the direct access web server of client, realize that easily and efficiently playback terminal is to the visit of the webserver.In addition, the webserver comprises the UI interface, show the information of network video stream on the UI interface of the webserver, the user checks the information of network video stream by the webserver UI interface that is presented on the playback terminal, so that select oneself to want the network video stream watched.
Step S60 specifically comprises:
Step S61 receives the download request that playback terminal generates at the webserver, according to the chained address of carrying in the download request, finds the network video stream that playback terminal is chosen, and network video stream is sent to the playback terminal broadcast.
Show Internet video stream label (being the information of network video stream) on the UI interface of the webserver of present embodiment, and be provided with the chained address of network video stream correspondence, the Internet video stream label is corresponding one by one with the chained address of network video stream, when the user after an Internet video stream label is chosen at the UI interface of the webserver, playback terminal generates download request automatically, carry the chained address of the network video stream of the Internet video stream label correspondence that playback terminal chooses in the download request, playback terminal sends download request by network to set-top box, inform which the network video stream that the played terminal of set-top box is chosen is, set-top box finds corresponding Internet video stream file according to the chained address of carrying in the download request, and this network video stream is sent to playback terminal play, watch for the user.
Present embodiment adopts the network address of the webserver and the chained address of network video stream, make things convenient for playback terminal to connect the webserver fast, reduce TV programme in playback terminal broadcast and the time difference between television set is play, can make playback terminal accomplish the real-time broadcast of TV programme.
As shown in Figure 3, Fig. 3 is the flow chart of TV programme digital signal processing method the 3rd embodiment of set-top box of the present invention.Present embodiment is based on embodiment illustrated in fig. 1, and wherein step S20 specifically comprises:
Step S21 handles the TV programme digital demodulation signal;
Step S22 is to the TV programme digital signal scramble process after the demodulation process;
Step S23 handles the TV programme digital signal demultiplexing after the scramble process, obtains program stream.
In the present embodiment, the major function of demodulation be programme information from primary reception to the TV programme digital signal demodulation come out.The cable digital TV transmitting station is before sending signal; usually can carry out scrambling to the TV programme digital signal and handle, therefore, set-top box is after receiving the TV programme digital signal; also need the TV programme digital signal is carried out scramble process, restore the preceding TV programme digital signal of scrambling.Simultaneously, require the cable digital TV transmitting station before sending signal for what satisfy high-throughput, two-forty and low transmission delay, also can carry out multiplexing process to the TV programme digital signal, therefore, set-top box is after receiving the TV programme digital signal, need that also the TV programme digital signal is carried out demultiplexing and handle, solve the programme information of current needs from several multiplexing programme informations together, the program stream behind the demultiplexing is mpeg or the program stream of form h.264 normally.
As shown in Figure 4, Fig. 4 is the structural representation of set-top box first embodiment of the present invention.In the present embodiment, set-top box comprises:
Signal receiving module 10 is used for the received television program digital signal;
In the present embodiment, set-top box receives the TV programme digital signal that the cable digital TV transmitting station sends by the cable digital TV transmission channel.Set-top box obtains program stream after the TV programme digital signal that receives is carried out demodulation, descrambling, demultiplexing processing.Set-top box in the present embodiment is after handling the TV programme digital signal decoding, be not by conventional AV as conventional set-top box, YPBPR, the HDMI channel is transferred to TV, but program stream is converted to the network video stream that can be used for network transmission, be stored in the memory of set-top box, and in set-top box, set up a webserver, for the playback terminal visit, title with network video stream, type, content introduction, information such as chained address are mapped on the webserver, the network video stream that the user can check and select oneself to want to watch from the webserver, playback terminal can also be linked on the set-top box memory that stores network video stream from the webserver.For the ease of playback terminal addressing machine top boxs such as PAD, PC, mobile phones, the webserver has corresponding access to netwoks mechanism, and playback terminal can call the browser access webserver, or at playback terminal client is installed, by the client-access webserver.After playback terminal and the webserver connect, the UI interface of display network server on display screen, the information such as type, quantity, brief introduction of checking the network video stream of storing in the set-top box for the user.The network video stream that the user watches according to the content choice needs at the UI interface of playback terminal demonstration, after the user chooses a network video stream, playback terminal generates the corresponding download request by the webserver, be sent to set-top box through network, to inform which the network video stream that the played terminal of set-top box is chosen is, set-top box finds this network video stream, and sends to the playback terminal broadcast, watches for the user.The network here typically refers to the network connection of local area network (LAN) inside, and the playback terminal that has network access functions in local area network (LAN) can be connected to set-top box by internetwork connection modes such as local router, wireless network or cable networks and carry out data interaction.Playback terminal is with after set-top box is connected, and the network video stream that can send by the network receiving set up box is implemented on the playback terminals such as PAD, PC, mobile phone and watches TV programme.
Set-top box in the present embodiment is converted to program stream the network video stream that can be used for the network transmission, and in set-top box, set up the webserver, playback terminal is connected to the webserver by internetwork connection mode, and the network video stream that sends by the network receiving set up box, value volume and range of product to playback terminal can be not restricted, and different playback terminals can select to watch different TV programme, can not influence each other between the TV programme that each playback terminal is watched yet, can satisfy the demand that different user is watched TV programme simultaneously.
In the embodiment of the invention, network transmission module 60 specifically is used for, and receives the access request that playback terminal sends, according to the network address of carrying in the access request, access web server, UI interface to the playback terminal of concurrent SCN Space Cable Network server show, select network video stream for playback terminal.
In the present embodiment, the webserver is provided with the network address, comprise the network address in the access request, playback terminal can call browser fan-in network address and be connected on the webserver, or in client the network address is set, by the direct access web server of client, realize that easily and efficiently playback terminal is to the visit of the webserver.In addition, the webserver comprises the UI interface, show the information of network video stream on the UI interface of the webserver, the user checks the information of network video stream by the webserver UI interface that is presented on the playback terminal, so that select oneself to want the network video stream watched.Show Internet video stream label (being the information of network video stream) on the UI interface of the webserver of present embodiment, and be provided with the chained address of network video stream correspondence, the Internet video stream label is corresponding one by one with the chained address of network video stream, when the user after an Internet video stream label is chosen at the UI interface of the webserver, playback terminal generates download request automatically, carry the chained address of the network video stream of the Internet video stream label correspondence that playback terminal chooses in the download request, playback terminal sends download request by network to set-top box, inform which the network video stream that the played terminal of set-top box is chosen is, set-top box finds corresponding Internet video stream file according to the chained address of carrying in the download request, and this network video stream is sent to playback terminal play, watch for the user.
Present embodiment adopts the network address of the webserver and the chained address of network video stream, make things convenient for playback terminal to connect the webserver fast, reduce TV programme in playback terminal broadcast and the time difference between television set is play, can make playback terminal accomplish the real-time broadcast of TV programme.
As shown in Figure 5, Fig. 5 is the structural representation of set-top box second embodiment of the present invention.Present embodiment is based on embodiment illustrated in fig. 4, and wherein decoding process module 20 specifically comprises:
In the present embodiment, the major function of demodulation be programme information from primary reception to the TV programme digital signal demodulation come out.The cable digital TV transmitting station is before sending signal; usually can carry out scrambling to the TV programme digital signal and handle, therefore, set-top box is after receiving the TV programme digital signal; also need the TV programme digital signal is carried out scramble process, restore the preceding TV programme digital signal of scrambling.Simultaneously, require the cable digital TV transmitting station before sending signal for what satisfy high-throughput, two-forty and low transmission delay, also can carry out multiplexing process to the TV programme digital signal, therefore, set-top box is after receiving the TV programme digital signal, need that also the TV programme digital signal is carried out demultiplexing and handle, solve the programme information of current needs from several multiplexing programme informations together, the program stream behind the demultiplexing is mpeg or the program stream of form h.264 normally.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the TV programme digital signal processing method of a set-top box is characterized in that, comprises step:
The received television program digital signal is handled described TV programme digital signal decoding, obtains program stream;
Described program stream is converted to network video stream, stores described network video stream;
Set up the webserver, the information of described network video stream is mapped on the described webserver;
Receive the access request that playback terminal sends, visit the described webserver;
Receive the download request that described playback terminal generates at the described webserver, search described network video stream according to described download request, and be sent to described playback terminal broadcast.
2. the TV programme digital signal processing method of set-top box according to claim 1 is characterized in that, the described webserver is provided with the network address, comprises the described network address in the described access request; The described webserver comprises the UI interface, shows the information of described network video stream on the UI interface of the described webserver;
The access request that described reception playback terminal sends, the step of visiting the described webserver specifically comprises:
Receive the access request that described playback terminal sends, according to the network address of carrying in the described access request, visit the described webserver, and the UI interface that sends the described webserver is selected described network video stream to described playback terminal demonstration for described playback terminal.
3. the TV programme digital signal processing method of set-top box according to claim 2, it is characterized in that, the information of the described network video stream that shows on the UI interface of the described webserver is corresponding one by one with the chained address of described network video stream, carries the chained address of the network video stream correspondence that described playback terminal chooses in the described download request;
The download request that the described playback terminal of described reception generates at the described webserver is searched described network video stream according to described download request, and is sent to the step that described playback terminal plays and specifically comprises:
Receive the download request that described playback terminal generates at the described webserver, according to the chained address of carrying in the described download request, search the network video stream that described playback terminal is chosen, and described network video stream is sent to described playback terminal broadcast.
4. according to the TV programme digital signal processing method of claim 2 or 3 described set-top box, it is characterized in that described to the processing of TV programme digital signal decoding, the step that obtains program stream specifically comprises:
Described TV programme digital demodulation signal is handled;
To the described TV programme digital signal scramble process after the demodulation process;
Described TV programme digital signal demultiplexing after the scramble process is handled, obtained program stream.
5. the TV programme digital signal processing method of set-top box according to claim 4, it is characterized in that, send or receive data by LAN between described set-top box and the playback terminal, the internetwork connection mode of described local area network (LAN) comprises that local router connects, wireless network connects or cable network connects.
6. a set-top box is characterized in that, comprising:
Signal receiving module is used for the received television program digital signal;
Decoding process module is used for described TV programme digital signal decoding is handled, and obtains program stream;
The network switch module is used for described program stream is converted to network video stream;
Memory module is used for the described network video stream of storage;
Module is set, is used for setting up the webserver, the information of described network video stream is mapped on the described webserver;
Network transmission module is used for receiving the access request that playback terminal sends, and visits the described webserver; Receive the download request that described playback terminal generates at the described webserver, search described network video stream according to described download request, and be sent to described playback terminal broadcast.
7. set-top box according to claim 6 is characterized in that, the described webserver is provided with the network address, comprises the described network address in the described access request; The described webserver comprises the UI interface, shows the information of described network video stream on the UI interface of the described webserver;
Described network transmission module specifically is used for, receive the access request that described playback terminal sends, according to the network address of carrying in the described access request, visit the described webserver, and the UI interface that sends the described webserver is selected described network video stream to described playback terminal demonstration for described playback terminal.
8. set-top box according to claim 7, it is characterized in that, the information of the described network video stream that shows on the UI interface of the described webserver is corresponding one by one with the chained address of described network video stream, carries the chained address of the network video stream correspondence that described playback terminal chooses in the described download request;
Described network transmission module specifically also is used for, receive the download request that described playback terminal generates at the described webserver, according to the chained address of carrying in the described download request, search the network video stream that described playback terminal is chosen, and described network video stream is sent to described playback terminal broadcast.
9. according to claim 7 or 8 described set-top box, it is characterized in that described decoding process module specifically comprises:
Demodulating unit is used for described TV programme digital demodulation signal is handled;
The descrambling unit is used for the described TV programme digital signal scramble process after the demodulation process;
Demultiplexing unit is used for the described TV programme digital signal demultiplexing after the scramble process is handled, and obtains program stream.
10. set-top box according to claim 9, it is characterized in that, send or receive data by LAN between described set-top box and the playback terminal, the internetwork connection mode of described local area network (LAN) comprises that local router connects, wireless network connects or cable network connects.
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| CN201310196854.7A CN103297822B (en) | 2013-05-23 | 2013-05-23 | Set top box and its TV programme digital signal processing method |
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| US20110286434A1 (en) * | 2004-11-09 | 2011-11-24 | Jeyhan Karaoguz | Enhanced wide area network support via a broadband access gateway |
| CN101005562A (en) * | 2006-07-07 | 2007-07-25 | 天栢宽带网络科技（上海）有限公司 | System for one set-top box to provide multiple display terminal receiving TV |
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| CN105307008A (en) * | 2015-10-28 | 2016-02-03 | 中新科技集团股份有限公司 | Content distribution method based on live broadcast signal |
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| CN103297822B (en) | 2018-02-16 |
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