CN1247022C - Interactive digital video and audio broadcasting and receiving system - Google Patents
Interactive digital video and audio broadcasting and receiving system Download PDFInfo
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- CN1247022C CN1247022C CN 02118616 CN02118616A CN1247022C CN 1247022 C CN1247022 C CN 1247022C CN 02118616 CN02118616 CN 02118616 CN 02118616 A CN02118616 A CN 02118616A CN 1247022 C CN1247022 C CN 1247022C
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Abstract
The present invention relates to an interactive digital video and audio broadcasting and receiving system which is built between a digital program broadcasting agent and at least one regional network by the transmission technology of an artificial satellite, wherein a multimedia servo driver and a signal converter of the digital program broadcasting agent orderly convert video and audio signals into a multimedia information flow and satellite digital broadcast signals, the satellite digital broadcast signals are chained to the artificial satellite to be spread, a servo driver in the regional network receives the satellite digital broadcast signals by the satellite signal receiver, the satellite digital broadcast signals are converted into the multimedia information flow which is sent in a multipoint broadcast mode, each user end is connected with the webpage servo driver of the digital program broadcasting agent by the internet, a medium diagram in the webpage is, the playing signals are sent to the user end, videos and audios which are corresponding to the multimedia information flow are output on a display of the user end according to the playing signals.
Description
Technical field
The present invention relates to digital audio-video and broadcast technology, especially a kind of interactive digital video and audio is play and TV receiving system.
Background technology
The world every electronics IT industry technical development at present is at full speed, make Internet and various electronics, communication product ripe gradually, add adding fuel to the flames of wide frequency communication, in recent years, the technology of Digital Television extensively is subjected to telecommunications and information dealer's attention, this Digital Television is receiving a satellite digital broadcasting signal, when carrying out playing programs, and the service that can use various website to provide by Internet synchronously.
The topmost advantage of this Digital Television just provides the image and the better sound quality of high image quality, and the traditional analog television of existing use has only 525 scan lines, and image analytic degree is lower, picture easily flashes, signal is disturbed; And Digital Television transmits with " 0 " digital form with " 1 ", can avoid extraneous interference, and fuzzy pictures does not just exist.Digital Television is brought up to 1080 with 525 scan lines, and clear, bright-coloured, stable and lively Hi-Vision picture also is provided.In addition, because the compressible characteristic of digital signal, make digital television signal to transmit simultaneously to match in excellence or beauty 6 sound channel Dolby Digitals of cinema's audio quality, replace 2 traditional sound channel stereo sound effects around audio.
In addition, this Digital Television can also provide diversified service by Internet, and existing simulated television can't be reached.So-called diversified service is as meteorology, news, traffic, video on demand (VideoOn Demand), online game etc., and shopping all becomes possibility even.
According to the above as can be known, after the technical development maturation of this Digital Television, it has implied huge business opportunity behind, so, in each technical field of relevant Digital Television, attracted many soft formulation and research and development of answering body manufacturer to drop into specification invariably.
But, this digital interactive television still has many difficulties on reality is carried out, this is because the rating family of traditional analog television, only can receive analog signal, and can't receive this satellite digital broadcasting signal, if this rating family desire receives this satellite digital broadcasting signal, then must give up conventional television, then buy more a Digital Television, or look in existing traditional electrical and to install a digital television converter (Digital TVSet-Top Box) on the machine additional, use reception this satellite digital broadcasting signal from artificial satellite, and reception is from the network signal of Internet, with broadcast and the network browsing that carries out program, in addition, because this Digital Television is a brand-new hardware device, make this program audience family must adapt to the mode that this Digital Television is browsed Internet, even, this Digital Television is play the merchant by digital program new browser is provided, originally utilize computer and must significantly change, carry out the Internet browsing mode, so, will cause inconvenience and the puzzlement in the use of program audience family, and cause the problems such as waste of program audience family consumption burden and resource.
In addition, see also shown in Figure 2, because all files of each website (web sit) in this Internet 2 (as: the multimedia document stream of image and sound), be stored in the webpage server (web server) 22 of assigned address, this webpage server 22 and view side 20 thereof are when uploading (update) or (download) data of download, (influence of other hardware electronics is less mainly all to be subject to these webpage server 22 employed transmission cables, can be left in the basket), and the maximum transfer speed of these view side 20 data transmission sets 24, and the frequency range of this transmission cable still must be shared by all view sides 20 that is connected to this webpage server 22.
For example, when if the maximum frequency range of this transmission cable is 100Mbps, have 24 view sides 20 and be connected to this webpage server 22, respectively 20 frequency ranges that can share in this view side are respectively 4.17Mbps, if the maximum transfer speed of these view sides 20 surpasses 4.17Mbps, then the transmission speed of 22 of these view sides 20 and webpage servers still only is 4.17Mbps.
Yet, the maximum frequency range of this webpage server 22 respectively in this Internet 2, mostly be less than 100Mbps, this is because the frequency range of website is big more, then the cost that sets up of this website then improves many relatively, download the situation of (download) archives with general automatic network, if this website is connected for the extremely many view sides 20 of number simultaneously, and downloading archives simultaneously, respectively 20 frequency ranges that can share in this view side will be quite little, make its maximum transmission speed mostly less than 1Mbps, even this transmission speed is less than 1,000 bit/second (Kilo bit per second; Hereinafter to be referred as: Kbps), hence one can see that, and the transmission speed that this webpage server 22 and view side are 20 changes its transmission speed rather unstable with the quantity of this view side 20.
Because the broadcasting speed of general multimedia document stream is 200～500kbps, when if this multimedia document stream is play by Microsoft's multimedia player (Microsoft Windows Media Player) or other players, this webpage server 22 can't transmit this multimedia document stream with identical speed, these players of military order must be waited for the multimedia document stream that receives enough broadcasts, just can carry out playback action again, otherwise, these players can't broadcast any image or sound, so, in the process of this player plays, discontinuous picture be will produce, inconvenience and puzzlement on user's rating caused.
Again, the signal transmission distance that this webpage server 22 and view side are 20, be separated by very (several kilometers) far away, so, must be by many web-transporting devices (as: router (Bridge), bridger (router), modem ... etc.), the signal that makes this webpage server 22 and view side 20 transmit mutually, constantly by these web-transporting devices, carry out various processing, the situation that this signal is made a mistake quite easily, and cause this webpage server 22 and 20 of view sides can't receive complete information, if reading the multimedia document stream of this webpage server 22 with this view side 20 is example, these players the situation of the grid or the freeze-frame picture of some mosaics will occur in the process of playing this multimedia document stream, sound then has noise or do not have situation such as sound.
So, if this satellite digital broadcasting conversion of signals is become this multimedia document stream, be sent on this view side 20 by this webpage server 22 by this Internet 2, the quality of its image and sound certainly will can't reach the quality with this Digital Television same image and sound.
Review, present Local Area Network 1 (Local Area Network, be called for short: LAN), see also shown in Figure 1, no matter pass through interchanger 10 (switch) or hub 10 (hub), all utilize the network signal line 12 that is complementary, make each user side 14 (client) and network servicer 16 (server) couple together, to form this Local Area Network 1, each user side 14 and network servicer 16 can be at this Local Area Network 1 delivery network signals (as shown in Figure 1), between this interchanger (switch) 10 or hub (hub) 10 every two-port (meaning promptly: two users hold 14 or 16 of user side 14 and servers) transmission speed, all far faster than the transmission speed of 22 of the view side 20 of this Internet (Internet) 2 and webpage servers (web server), and this Local Area Network 1 is in transmission course, the make a mistake situation of (as: the IP package drops) is also lacked than this Internet 2.General speech, the transmission speed of this Local Area Network 1 and transmission quality, preferable in the transmission speed of this Internet 2 and the reason of quality, main as following:
Each user side 14 in this Local Area Network 1 and the signal transmission distance of server 16 short (in hundreds of meters), only need pass through interchanger 10 or hub 10 and holding wire 12, can carry out signal transmission, if be (Mega bit per second 10/100 megabit unit/second with transmission speed; Hereinafter to be referred as: Mbps), and the interchanger 10 of tool 24 ports, it can provide maximum frequency range to be:
100Mbps×(24/2)＝1200Mbps
Meaning promptly can both be carried out the network signal transmission with the transmission speed of 100Mbps between its every two-port;
If with the transmission speed is 10/100Mbps, and the hub 10 of tool 24 ports, it can provide maximum frequency range is 100Mbps, shared by user side 14 and server 16 that this 24 port is connected, so the transmission speed between every two-port is:
100Mbps÷(24/2)＝8.33Mbps
Meaning promptly all only can be carried out the network signal transmission with the transmission speed of 8.33Mbps between its every two-port.
In addition, because the signal transmission distance of this Local Area Network 1 is shorter, so 16 network signals that transmit mutually of the user side 14 of this Local Area Network 1 and server, be not prone to mistake, and generally need be 16 of this user side 14 and servers, other electronic equipments are installed, to guarantee the stable or correctness of network signal in this Local Area Network 1, its server 16 can transmit the multimedia document stream (Media steam) that comprises image and voice, this user side 14 also can receive near complete errorless multimedia document stream, and the audio-visual quality that makes this multimedia document stream present is more clear;
From the above, because the transmission speed of this Local Area Network 1 is faster than this Internet 2, and its transmission course is stable, make between the server 16 and user side 14 of this Local Area Network 1, can obtain than complete information, so these players ought to obtain preferable image and sound quality when the picture that this multimedia document stream of broadcast is presented.
So, if this satellite digital broadcasting conversion of signals is become this multimedia document stream, directly utilize the server 16 of this Local Area Network 1, this multimedia document spread deliver to respectively this user side 14, play by the player of this user side 14 again, must significantly reduce time-lag and noise interference that this multimedia document stream is caused on Internet 2, and make its transmission speed accelerate, and the reason noise does not disturb, produce wrong data, make this player can play out the more image and the sound of good merchantable brand matter, in addition, the program audience family needn't be in order to watch digital program, and buy more Digital Television or digital television converter in addition, and can continue to use all soft hardware equipment of existing computer, needn't change just any existing use and operating habit, can reach effect and the function identical with this Digital Television.
Summary of the invention
Because Digital Television causes the puzzlement at program audience family on carrying out, and fail to be convened for lack of a quorum from the Internet download multimedia document and to have transmission speed slow, the shortcoming that institute's data transmission is easily made mistakes, the inventor is through the permanent research and experiment of making great efforts, and development and Design goes out a kind of interactive digital video and audio broadcast of the present invention and TV receiving system finally.
Technical scheme of the present invention is such: the present invention plays and TV receiving system for a kind of interactive digital video and audio, this system is by Internet and artificial satellite, framework is play between merchant and at least one Local Area Network at a digital program, this digital program is play the merchant and is provided with a multimedia server and a webpage server, this Local Area Network includes at least one server and plurality of users end, this server is by this Internet, be connected together with this webpage server, in order to mutual transmission network signal, and handle: at first according to the following step, this multimedia server is with the video-audio signal of at least one program channel, according to Network Transmission agreement converting multimedia data stream; Then, these multimedia documents are spread deliver in the signal converter, change the multimedia document circulation into the satellite digital broadcasting signal, make this satellite digital broadcasting signal can be by cochain to this artificial satellite to utilize this signal converter; Again by this artificial satellite with this satellite digital broadcasting signal, in the signal transmitting boundary of this artificial satellite, scatter with broadcast mode; By a satellite-signal receiver, receive this satellite digital broadcasting signal again, and this satellite digital broadcasting conversion of signals is become multimedia document stream, and be sent to the server of this Local Area Network; Then, this server is sent to respectively this user side in the mode of multicast with this multimedia document stream, is play by this user side.
Wherein this server is in the mode of multicast, after this multimedia document stream is sent to respectively this user side, still after comprising the following steps: that respectively this user side passes through this server and this webpage server is connected, the webpage that can show this webpage server at the display of this user side, this webpage is provided with at least one medium diagram, and this medium diagram is represented different program channels respectively; Then, when this webpage server reads the medium diagram that is clicked on the webpage of this user side, will produce a play signal, and be sent to this user side; Then, this user side can be according to this play signal, the multimedia document stream of acquisition this play signal of coupling in this server; At last, utilize the player in this user side, the image and the sound playing of this multimedia document stream representative can be come out.
Wherein this satellite-signal receiver is connected together mutually with a plurality of decoders respectively, and these decoders mate different specific codings respectively, and these satellite digital broadcasting signal cochains earlier according to the specific coding mode, are edited encryption respectively to this artificial satellite; This satellite-signal receiver is decoded by these decoders respectively after receiving respectively this satellite digital broadcasting signal, and converts different multimedia document stream respectively to, is resent in this server.
This video-audio signal wherein, provide by at least one program provider, this program provider is with the video-audio signal of its program channel, be sent to another artificial satellite with another satellite digital broadcasting signal, this digital program is play the merchant again by another satellite-signal receiver, receive this another satellite digital broadcasting signal, and this another satellite digital broadcasting signal decoding is become video-audio signal, this multimedia server carries out subsequent treatment again.
Wherein be provided with a managerial data storehouse and a system management mechanism in this webpage server, include user's title, password and rating record in this managerial data storehouse at least; This systematic manager presents an instruction input frame on this webpage, this user side receives its input element, after instructions such as this instruction input frame input user's title and password, this system management mechanism can be sent to this managerial data storehouse with these instructions, compare, if the user's title in these instructions and this managerial data storehouse, when password conforms to, after then this medium illustrate and clicked, this webpage server can produce this play signal, and the rating record of this user side of opening entry.
System of the present invention is by Internet and artificial satellite, framework is play between merchant and at least one Local Area Network at a digital program, wherein this digital program is play to discuss a multimedia document is flowed, by a multimedia server and a signal converter and an artificial satellite, be sent in the server of this Local Area Network, user side in this Local Area Network can pass through this Local Area Network and Internet, be connected to this digital program and play merchant's webpage server, make its display show the webpage of this webpage server of coupling, then, when the medium diagram on this webpage is clicked, this webpage server can produce a play signal, and be sent to this user side, make this user side can be according to this play signal, the multimedia document that is complementary with it stream that acquisition is broadcasted at this server makes this user side can utilize this multimedia document stream of a player plays, with image output and sound.Because, each transmitting channel of artificial satellite has the transmission speed of 1Mbps at least at present, and between the server and user side of this Local Area Network, has the transmission speed of 8.33Mbps at least, so, this digital program is play between merchant and Local Area Network, and any signal is the transmission speed of 1Mbps at least all, carries out the signal transmission, so, this user side is when utilizing this multimedia document stream of this player plays, and the transmission speed of 1Mbps presents the more image and the sound information of good merchantable brand matter at least.
Description of drawings
Illustrate:
Fig. 1 is known Local Area Network configuration diagram;
Fig. 2 is known Internet configuration diagram;
Fig. 3 is a configuration diagram of the present invention;
Fig. 4 is that program provider and digital program are play merchant's configuration diagram;
Fig. 5 plays the merchant with the flow chart of video-audio signal cochain to artificial satellite for digital program;
Fig. 6 is the flow chart of Local Area Network receiving satellite broadcast signal;
Fig. 7 is the flow chart of user side play multimedia data stream;
Fig. 8 is the schematic diagram in managerial data storehouse;
Fig. 9 is the flow chart of the treatment step of system management mechanism.
The main element numbering:
Internet ... ... ... 3 artificial satellites ... ... 4
Digital program is play the merchant ... ... 5 multimedia servers ... 50
The webpage server ... ... ... the .52 signal converter ... ... 54
Another satellite-signal receiver ... 56 Local Area Networks ... ... 6
Server ... ... ... ... .60 network connection device ... 62
User side ... ... ... ... .64 satellite-signal receiver ... 66
Decoder ... ... ... ... 68 program provider ... ... 7
Another artificial satellite ... ... 8 user's names ... ..90
Password ... ... ... ... .91 rating record ... ... 92
Channel designation ... ... ... 921 choose number of times ... ... 922
The rating time ... ... ... 923
Embodiment
A kind of interactive digital video and audio of the present invention is play and TV receiving system, see also Fig. 3, shown in 4 and 5, this system is by Internet 3 (Internet) and artificial satellite 4 (Satellite), framework is play between merchant 5 and at least one Local Area Network 6 at a digital program, this digital program is play merchant 5 and is provided with a multimedia server (Media Server) 50 and one webpage server (Web Server) 52, wherein this multimedia server 50 is with the video-audio signal (AV Single) of at least one program channel, according to Network Transmission agreement converting multimedia data stream (Media stream), then, these multimedia documents are spread deliver in the signal converter 54, to utilize this signal converter 54 with this multimedia document stream, convert satellite digital broadcasting (Digital Video Broadcast for Satellite to, be called for short: DVB-S) signal, again with this satellite digital broadcasting signal cochain to this artificial satellite 4, then, by this artificial satellite 4 with this satellite digital broadcasting signal, in the signal transmitting boundary of this artificial satellite 4, scatter (as shown in Figure 2) in broadcasting (broadcast) mode.
See also shown in Fig. 3 and 6, this Local Area Network 6 includes at least one server 60, at least one network connection device 62 (as: switch or hub) and plurality of users end 64, this network connection device 62 is as each user side 64 in this Local Area Network 6 and the media of server 60 delivery network signals, this server 60 is connected together with this webpage server 52 by this Internet 3, in order to mutual reception or transmit network signal (as: IP package), in addition, by a satellite-signal receiver 66, receive this satellite digital broadcasting signal, and this satellite digital broadcasting conversion of signals become multimedia document stream, be resent in this server 60, then, this server 60 sends this multimedia document stream in the mode of multicast (Multicast).
See also shown in Fig. 3,7, respectively this user side 64 can be connected with this webpage server 52 by this server 60, make the display of this user side 64, the webpage (WebPage) that shows this webpage server 52, this webpage is provided with at least one medium diagram, and this medium diagram is represented different program channels respectively; So, after the diagram of the medium on this webpage is clicked, this webpage server 52 can produce the illustrated play signal of these medium of coupling, and this play signal is sent to this user side 64, make this user side 64 can be according to this play signal, the multimedia document stream of this play signal is mated in acquisition in this server 60, and the multimedia document stream that utilizes a player to be play to be captured, in order to export the image and the sound of this multimedia document stream.
In the present invention, see also shown in Fig. 3,5, these satellite digital broadcasting signal cochains earlier according to different specific coding modes, are edited encryption respectively to this artificial satellite 4; This satellite-signal receiver 66 is connected together mutually with a plurality of decoders 68 respectively, these decoders 68 with mate different specific codings respectively, after this satellite-signal receiver 66 receives respectively this satellite digital broadcasting signal, decode by these decoders 68 respectively, and convert different multimedia document stream respectively to, be resent in this server 60.
In the present invention, see also shown in Fig. 3,4, this digital program is play merchant 5 program channel, provide by at least one program provider 7, this program provider 7 is with the video-audio signal of its program channel, be sent to another artificial satellite 8 with another satellite digital broadcasting signal, this digital program is play merchant 5 again by another satellite-signal receiver 56, receive this another satellite digital broadcasting signal, and this another satellite digital broadcasting signal decoding become a video-audio signal, carry out subsequent treatment by 50 pairs of these video-audio signals of this multimedia server again.Because this video-audio signal cochain is to the method for another artificial satellite 8, identical to the method for artificial satellite with emission of radio frequency signals with image and the sound of general TV and Radio Corporation with its programme content, it is proprietary that this kind method is not the present invention institute, thus this not with give unnecessary details.
In the present invention, see also shown in Fig. 3 and 8,9, be provided with a managerial data storehouse and a system management mechanism in this webpage server 52, at least include data such as user's title 90, password 91 and rating record 92 in this managerial data storehouse, this rating record 92 is play merchant's 5 demands according to this digital program and is decided, but it comprises the illustrated channel designation 921 of these medium of coupling at least, chooses number of times 922, rating time 923 etc., in order to discuss 5 pairs of these user sides 64, the authority of charging as this digital program broadcast in the future; For example: a user side 64 is in one month, concurrent selects 5 different channels, each channel clicks respectively 1 time, these channel rating times were respectively 30 minutes, then this digital program play merchant 5 can be to the regulation of this user side 64, to these user side 64 charges according to contract (charge in proper order, to charge service time).
See also shown in Fig. 3,9, this user side 64 is with after this webpage server 52 is connected together mutually, and this user side 64 can utilize this system management mechanism, handles according to the following step:
(801) at first, on this webpage, present an instruction input frame;
(802) then, this user side 64 reads its input element, in instructions such as this instruction input frame input user's title 90 and passwords 91;
(803) then, these instructions are sent to this managerial data storehouse, compare,, then carry out according to step (804) if these instructions conform to user's title 90, password 91 in this managerial data storehouse;
(804) after this medium diagram is clicked, this webpage server 52 can produce the illustrated play signal of these medium of coupling, and the rating record of this user side 64 of opening entry, simultaneously, this play signal is sent to this user side 64, make this user side 64 can be according to this play signal, the multimedia document stream of this play signal is mated in acquisition in this server 60, and the multimedia document stream that utilizes a player plays to be captured, in order to exporting the image and the sound of this multimedia document stream, otherwise carry out according to step (805);
(805) will present the information of an input instruction mistake on this webpage;
(806) then, require user side 64 to re-enter instruction.
In the present invention, this Local Area Network 6 can be the interior zone network of general community building, school, Internet bar, government bodies and Internet service provider (Internet Service Provider).
Because, each transmitting channel of artificial satellite has the transmission speed of 1Mbps at least at present, and between the server and user side of this Local Area Network, have the transmission speed of 8.33Mbps at least, 6 of this digital program broadcast merchant 5 and Local Area Networks, any signal at least can be according to the transmission speed of 1Mbps, carry out the signal transmission, so, this user side is when utilizing this multimedia document stream of this player plays, at least the transmission speed of 1Mbps presents the more image and the sound information of good merchantable brand matter.
In addition, because the server of this Local Area Network 6 is in the mode of multicast, send this multimedia document stream, so, when the identical multimedia document of user sides all in this Local Area Network 6 64 acquisitions flows, the player of these user sides 64 also can be identical speed (1Mbps), receive and play, this is the characteristic of multicast, so, see also shown in Figure 2ly, can improve on traditional Internet 2, shared by the view side 20 of all lines because of the transmission speed of this webpage server 22, the player that causes this view side 20 is broadcast program and the bad disappearance of image quality swimmingly.
So, respectively this user side can not change existing use habit, and needn't buy more new computer product again, only must be on the position at this Local Area Network place, install this satellite receiver additional, can watch digital program, significantly lower the consumption burden, and solve inconvenience and the puzzlement in the use of program audience family, and the problems such as waste of consumption burden and resource.
Press, the above is only for a specific embodiment of the best of the present invention, but structural feature of the present invention is not limited thereto, anyly be familiar with this skill person in field of the present invention, can think easily and variation or modification, all can be encompassed in the scope of claims of this case.
Claims (4)
1. an interactive digital video and audio is play and TV receiving system, it is characterized in that: this system is by Internet and artificial satellite, and framework is play between merchant and at least one Local Area Network at a digital program;
This system includes digital program and plays merchant, signal converter, artificial satellite, satellite-signal receiver, at least one Local Area Network server, a plurality of user side and user side player;
Wherein, described digital program is play the merchant and is provided with a multimedia server and a webpage server; Described Local Area Network server is connected together with this webpage server by described Internet, mutually the transmission network signal;
Wherein, described multimedia server is with the video-audio signal of at least one program channel, flow according to network transmission protocol converting multimedia data, be sent in the signal converter, this signal converter changes described multimedia document circulation into the satellite digital broadcasting signal, and cochain is to described artificial satellite, and this artificial satellite is with described satellite digital broadcasting signal, in the signal transmitting boundary of this artificial satellite, scatter with broadcast mode; One satellite-signal receiver, receive this satellite digital broadcasting signal, this satellite digital broadcasting conversion of signals is become multimedia document stream, be sent to described Local Area Network server, this Local Area Network server is in the mode of multicast, described multimedia document stream is sent to respectively this user side, plays by this user side;
Wherein, described respectively this user side is connected by described Local Area Network server and described webpage server, the webpage that shows described webpage server at the display of this user side, this webpage is provided with at least one medium diagram, this medium diagram is represented different program channels respectively, when described webpage server reads the medium diagram that is clicked on the webpage of described user side, to produce a play signal, and be sent to this user side, this user side is according to described play signal, the multimedia document stream of this play signal is mated in acquisition in described Local Area Network server, utilize the player in this user side, the image and the sound playing of described multimedia document stream representative are come out.
2. the system as claimed in claim 1, it is characterized in that: described system also comprises a plurality of decoders, connects described satellite-signal receiver respectively;
Wherein, described decoder mates different specific codings respectively, and described satellite digital broadcasting signal cochain earlier according to the specific coding mode, is edited encryption respectively to described artificial satellite; Described satellite-signal receiver is decoded by described decoder respectively after receiving respectively this satellite digital broadcasting signal, and converts different multimedia document stream respectively to, is resent in the described Local Area Network server.
3. the system as claimed in claim 1, it is characterized in that: described system also comprises another satellite-signal receiver, at least one program provider, another artificial satellite;
Wherein, described digital program is play the merchant by another satellite-signal receiver, receives another satellite digital broadcasting signal, and this another satellite digital broadcasting signal decoding is become video-audio signal, and described multimedia server carries out subsequent treatment again; At least one program provider provides described video-audio signal, and described program provider is sent to another artificial satellite with the video-audio signal of its program channel with another satellite digital broadcasting signal.
4. the system as claimed in claim 1 is characterized in that: be provided with a managerial data storehouse and a system management facility in the wherein said webpage server, include user's title, password and rating record in this managerial data storehouse at least;
This system management facility presents an instruction input frame on this webpage, this user side receives its input element, after instructions such as this instruction input frame input user's title and password, this system management facility can be sent to described instruction this managerial data storehouse, compare, if the user's title in described instruction and this managerial data storehouse, when password conforms to, after then these medium illustrate and clicked, this webpage server can produce this play signal, and the rating record of this user side of opening entry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02118616 CN1247022C (en) | 2002-04-26 | 2002-04-26 | Interactive digital video and audio broadcasting and receiving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02118616 CN1247022C (en) | 2002-04-26 | 2002-04-26 | Interactive digital video and audio broadcasting and receiving system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1454006A CN1454006A (en) | 2003-11-05 |
| CN1247022C true CN1247022C (en) | 2006-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02118616 Expired - Fee Related CN1247022C (en) | 2002-04-26 | 2002-04-26 | Interactive digital video and audio broadcasting and receiving system |
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| CN (1) | CN1247022C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080022348A1 (en) * | 2006-07-03 | 2008-01-24 | Samoa Opulence Investment Inc. | Interactive video display system and a method thereof |
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- 2002-04-26 CN CN 02118616 patent/CN1247022C/en not_active Expired - Fee Related
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| CN1454006A (en) | 2003-11-05 |
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