CN103428455A - Multimedia broadcasting system, method and device - Google Patents
Multimedia broadcasting system, method and device Download PDFInfo
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- CN103428455A CN103428455A CN2012102082350A CN201210208235A CN103428455A CN 103428455 A CN103428455 A CN 103428455A CN 2012102082350 A CN2012102082350 A CN 2012102082350A CN 201210208235 A CN201210208235 A CN 201210208235A CN 103428455 A CN103428455 A CN 103428455A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 67
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- 238000010586 diagram Methods 0.000 description 10
- 101100322773 Arabidopsis thaliana AGD5 gene Proteins 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- TVZRAEYQIKYCPH-UHFFFAOYSA-N 3-(trimethylsilyl)propane-1-sulfonic acid Chemical compound C[Si](C)(C)CCCS(O)(=O)=O TVZRAEYQIKYCPH-UHFFFAOYSA-N 0.000 description 3
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Abstract
A multimedia broadcasting system comprises a plurality of multimedia signal bridges, a plurality of digital television signal bridges and a plurality of digital television signal bridges, wherein the multimedia signal bridges are used for respectively receiving a plurality of multimedia signals, respectively demodulating the plurality of multimedia signals to obtain a plurality of multimedia transmission streams, and respectively modulating the plurality of multimedia transmission streams to obtain a plurality of multimedia digital television signals, each multimedia transmission stream comprises at least one program, and each digital television signal conforms to a digital television broadcasting standard; the radio frequency mixer is connected to the multimedia signal bridges, receives the multimedia digital television signals and outputs a digital television radio frequency signal; and the multimedia players are connected to the radio frequency mixer in a wireless or wired mode, receive the radio frequency signals of the digital television, and acquire and play the programs according to the digital television broadcasting standard.
Description
Technical field
The invention relates to a kind of multi-media broadcasting system, device and method, the multi-media broadcasting system, the device and method that particularly receive about a kind of movement-based.
Background technology
Along with being showing improvement or progress day by day of science and technology, people also promote increasingly to the demand of multimedia video.After the television broadcasting signal digitlization, the also little by little raising of demand that people teleview and wait the multimedia video content when mobile, watch video content miscellaneous when moving on the vehicles such as on aircraft, bus, train.But the digital TV broadcast signal of wireless receiving, comprised ground (Terrestrial) digital broadcast signal or satellite (Satellite) digital TV broadcast signal at present.When the situation mobile receives above-mentioned these signals, except the transport protocol standard met of this digital TV broadcast signal need have the mobile ability of supporting (Mobility Support), more similarly there is certain requirement on the hardware supports of receiving terminal.
When receiving terminal is wanted to receive the satellite television broadcasting signal under mobile status, receiving terminal need have disc-shaped antenna or plane phased array (Flat Phased-Array) antenna of automatic orientation ability, allow antenna possess the highest gain of satellite television broadcasting signal, allow receiving terminal that best reception is arranged at any time.And when the receiving terminal wish receives terrestrial digital broadcasting signal, the problems such as the Doppler effect (Doppler Effect) caused during due to movement and multi-path (multi-path), receiving terminal need possess the technology of diversity antenna (Diversity Antenna) and diversity merging (Diversity Combining) usually, just can obtain one and be available for users to the video content that smoothness is viewed and admired.
Current existing part aircraft or long-distance bus provide passenger's personal audio system, allow each passenger freely select the content of wanting to watch.And the video-audio data of such audio-video system source is the audio/video file that stores in advance and as above-mentioned receiving digital television broadcast signal.Receiving digital television broadcast signal send several practices of the practice of individual passengers in currently available technology.The simplest practice, for utilizing a number of units word TV boxcar (Set-Top Box, STB), receives single programs, sends the passenger to by connected modes such as AV terminal (Composite video connector) and watches.But the shortcoming of such practice is, can only send a program, and the passenger can't freely select the program of wanting to watch simultaneously.And, though AV terminal wiring is comparatively easy, can be by the restriction received on image quality, and the problem of signal attenuation.
The method that prior art also has corresponding above-mentioned shortcoming to be improved.For example, can configure a number of units word TV boxcar for each passenger, and allow these Digital Television boxcars share reception antenna.But such setup cost is very high, and can cause very complicated distribution.Comparatively compromise makes rule for the default channel number of watching, for these viewing channels, one number of units word TV boxcar is set respectively, but in such event picture material still because transmit and image quality is low by AV terminal.If change use HDMI (High Definition Multimedia Interface) (High Definition Multimedia Interface, HDMI) transmission into to improve image quality with being same as above-mentioned setting, the characteristic one to one of HDMI connecting line can cause complicated distribution again.
Another kind is made rule the digital broadcast signal received is turned with network protocol television (Internet Protocol Television, IPTV) form with data packet transmits, yet such collocation method has again the frequency range restriction and builds and shortcoming difficult in maintenance.
Summary of the invention
In view of this, the invention provides a kind of multi-media broadcasting system, device and method, simply to configure, receive a plurality of channels and program, send each multimedia player in system to.Wherein, described device also has the ability of mobile reception.
The invention provides a kind of multi-media broadcasting system, comprise: a plurality of multi-media signal bridgers, receive respectively a plurality of multi-media signals, a plurality of multi-media signals of demodulation to be to obtain a plurality of multimedia transmission stream respectively, and modulate respectively a plurality of multimedia transmission and flow to obtain a plurality of multi-media digital television signals, wherein each multimedia transmission stream comprises at least one program, and each digital television signal meets a digital television broadcasting standard; One radio-frequency (RF) mixer, be connected to a plurality of multi-media signal bridgers, and this radio-frequency (RF) mixer receives a plurality of multimedia transmission stream, and exports a digital television radio-frequency signal; A plurality of multimedia players, wireless or be typically wire connected to this radio-frequency (RF) mixer, receive this digital television radio-frequency signal, and obtain and play this program according to this ground digital television broadcast (DVB-T) standard.
The present invention also provides a kind of media broadcasting method, comprising: a. receives a plurality of multi-media signals, and a plurality of multi-media signals of demodulation are to obtain respectively a plurality of multimedia transmission stream respectively, and wherein each multimedia transmission stream comprises respectively at least one program; B. modulate respectively a plurality of multimedia transmission stream, to produce respectively a plurality of multi-media digital television signals, wherein each media digital television signal meets a digital television broadcasting standard; And a plurality of multi-media digital television signals of c. radio frequency mixing, produce a digital television radio-frequency signal.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate appended graphic being described in detail below.
The accompanying drawing explanation
Figure 1 shows that the system block diagrams of the multi-media broadcasting system illustrated according to one embodiment of the invention.
Figure 2 shows that the functional block diagram of the multi-media signal bridger illustrated according to one embodiment of the invention.
Fig. 3 A is depicted as the functional block diagram of the multi-media signal bridger illustrated according to another embodiment of the present invention.
Fig. 3 B is depicted as the functional block diagram of the multi-media signal bridger illustrated according to another embodiment of the present invention.
Figure 4 shows that the system block diagrams of the multi-media broadcasting system illustrated according to one embodiment of the invention.
Fig. 5 is the flow chart of steps according to media broadcasting method that one embodiment of the invention illustrates.
[main element label declaration]
10,40: multi-media broadcasting system
101～10n, 201,401～403: multi-media signal bridger
110,410: radio-frequency (RF) mixer 120～12p, 421～42p: multimedia player
2010,4011: disc-shaped antenna unit 2011,4032: FM demodulator
2012,3015,406,4014,4026,4034: modulator
3011,4021: attached antenna 3016: diversity merges demodulator
3012,4022: attached FM demodulator 3014,4024: homophony is demodulator frequently
3013,4023: main antenna 4031: antenna
404: multimedia server 4211: demodulator
4212: audio-visual decoder 4213: output unit
4214: channel switch unit CH1～CHk, CHi: channel
CS: channel transmission stream VC: video-audio data
MS1～MSn, MS10～MS12: multi-media signal
MTV1～MTVn: multi-media digital television signal DSO: the attached output signal of diversity
OP: operation signal S101～S103: process step
Embodiment
Figure 1 shows that the system block diagrams of the multi-media broadcasting system illustrated according to one embodiment of the invention.Please refer to Fig. 1, multi-media broadcasting system 10 comprises a plurality of multi-media signal bridger 101～10n, radio-frequency (RF) mixer (RF mixer) 110 and a plurality of multimedia player 120～12n.A plurality of multi-media signal bridger 101～10n receives respectively a plurality of multi-media signal MS1～MSn and a plurality of multi-media signal MS1～MSn of difference demodulation, obtain a plurality of multimedia transmission stream, its audio-visual form is for meeting dynamic image expert group the second standard (Moving Picture Experts Group, MPEG-2) transmission stream form (the Transport Stream of institute's standard in, TS), follow a plurality of multimedia transmission stream and be modulated into a plurality of multi-media digital television signal MTV1～MTVn.
In this embodiment, multi-media signal MS1～MSn meets a digital television broadcasting standard, comprise digital video broadcast-satellite (Digital Video Broadcasting-Satellite, DVB-S) standard, digital satellite services (Digital Satellite Service, DSS) standard, ground digital television broadcast (Digital Video Broadcasting-Terrestrial, DVB-T) standard, floor synthetic digital service broadcast (Integrated Services Digital Broadcasting-Terrestrial, ISDB-T) standard, terrestrial DTV multimedia broadcasting (Digital Terrestrial Multimedia Broadcast, DTMB) (the Advanced Television Systems Committee of standard or AdvancedTelevision Standards Committee, ATSC) standard, multi-media digital television signal MTV1～MTVn meets ground digital television broadcast (DVB-T) standard, cable digital TV broadcast (Digital Video Broadcasting-Cable, DVB-C) standard, quadrature amplitude modulation (Quadrature Amplitude Modulation, QAM) standard, floor synthetic digital service broadcast (ISDB-T) standard, terrestrial DTV multimedia broadcasting (DTMB) standard or AdvancedTelevision Standards Committee (ATSC) standard, but the present invention is not limited to above-mentioned execution mode.
A plurality of multi-media signal MS1～MSn correspond respectively to a plurality of channels (Channel), and n can be the total channel number of a regional digital TV broadcast signal that can receive, and also can adjust increase and decrease by actual state.In addition, a described channel comprises at least one program (Program), one or more program that namely a TV station sends in same channel simultaneously.
Radio-frequency (RF) mixer 110 connects multi-media signal bridger 101～10n, and receives a plurality of multi-media digital television signal MTV1～MTVn from media signal bridger 101～10n.Radio-frequency (RF) mixer 110 is mixed into a road output by multichannel multi-media digital television signal MTV1～MTVn, be that radio-frequency (RF) mixer 110 is mixed into a digital television radio-frequency signal by a plurality of multi-media digital television signal MTV1～MTVn, it comprises one or more channel CH1～CHk.Wherein.In addition, the k value is the sum of all programs in multi-media digital television signal MTV1～MTVn.
Multimedia player 120～12p is connected to radio-frequency (RF) mixer 110, receives one or more channel CH1～CHk, and according to digital picture broadcast standard one of them content of broadcasting channel CH1～CHk respectively.Wherein, the quantity of p is set with actual state.For example, when multi-media broadcasting system 10 is arranged on the vehicles, the size of p is corresponding to the quantity of passenger-seat.
Multi-media signal bridger 101～10n can receive the digital TV broadcast signal of same type, also can receive respectively dissimilar digital TV broadcast signal, wherein multi-media signal bridger 101～10n has different set-up modes along with the kind of the multi-media signal MS1～MSn received respectively.Figure 2 shows that the functional block diagram of the multi-media signal bridger illustrated according to one embodiment of the invention.Please refer to Fig. 2, in the present embodiment, multi-media signal MS1 is a digital TV broadcast signal, for example meets the digital TV broadcast signal of digital video broadcast-satellite standard (DVB-S).
On the other hand, because receiving digital television broadcast signal in movement easily produces Doppler effect because of the relative position change of translational speed direction and signal source, landform and build thing and cause the effect of signal multi-path arround the Yi Yin their location more, space diversity (Space Diversity), or claim that antenna diversity (antenna diversity) technology is to solve the above problems.In signal receiving end, space diversity is utilized the different paths of a plurality of reception antenna merga pass, the signal of differential declines degree and delay degree is arranged, to reach good reception.
Fig. 3 A is depicted as the functional block diagram of the multi-media signal bridger illustrated according to another embodiment of the present invention.Please refer to Fig. 3 A, multi-media signal bridger 201 comprises that attached antenna 3011, main antenna 3013, diversity merge demodulator 3016, and modulator 3015.Diversity merges demodulator 3016 and connects main antenna 3013 and attached antenna 3011, and utilizes diversity antenna technology, multimedia signal receiving MS1, and demodulation multi-media signal MS 1, obtain multimedia transmission stream.Modulator 3015 connects diversity and merges demodulator 3016, and modulator 3015 will produce multi-media digital television signal MTV1 after the modulation of multimedia transmission stream.Radio-frequency (RF) mixer 110 connects modulator 3015, receives multi-media digital television signal MTV1.Wherein, radio-frequency (RF) mixer 110 can, with reference to the explanation of figure 1, repeat no more in this.In addition, diversity merges the attached antenna that demodulator 3016 can be designed to connect two groups or more, can obtain the reception of better multi-media signal MS1, the adjustment that therefore quantity of attached antenna can be arranged by actual state, the present invention is not limited to above-mentioned execution mode.
Fig. 3 B is depicted as the functional block diagram of the multi-media signal bridger illustrated according to further embodiment of this invention.Please refer to Fig. 3 B, multi-media signal bridger 201 comprises attached antenna 3011, attached FM demodulator 3012, main antenna 3013, homophony demodulator 3014 frequently, and modulator 3015.Attached antenna 3011 is with characteristic frequency multimedia signal receiving MS1.The characteristic frequency transmission frequency of multi-media signal MS 1 namely wherein.Attached FM demodulator 3012 connects attached antenna 3011, from attached antenna 3011 multimedia signal receiving MS1 demodulation, obtains the attached output of diversity (Diversity Slave Output, DSO) signal.
It should be noted that multi-media signal bridger in Fig. 3 301 and radio-frequency (RF) mixer 110 can distinguish independent setting, also can integratedly be set to a self-contained unit.When multi-media signal bridger 301 is arranged to a self-contained unit with radio-frequency (RF) mixer 110 is integrated, a plurality of multi-media signal bridgers also can be set simultaneously to receive a plurality of multi-media signals in this self-contained unit, more program and channel are provided, and multi-media signal bridger 101～10n connects radio-frequency (RF) mixer 110 as shown in Figure 1.Wherein, these multi-media signal bridgers can be arranged to the set-up mode identical with multi-media signal bridger 201, or the adjustment that arranged of the difference of the multi-media signal kind received with it, and the present invention is not limited to above-mentioned.
Figure 4 shows that the system block diagrams of the multi-media broadcasting system illustrated according to one embodiment of the invention.Wherein, in the present embodiment, the relation that couples of each element is identical with Fig. 1, therefore at this, does not repeat.Please refer to Fig. 4, multi-media signal bridger 401～403 receives respectively different digital TV broadcast signals.Multi-media signal bridger 401 meets the digital video broadcast-satellite signal of DVB-S/DSS standard, namely multi-media signal MS10 in order to reception in the present embodiment.Multi-media signal bridger 402 and multi-media signal bridger 403 be multimedia signal receiving MS11 and multi-media signal MS12, and wherein multi-media signal MS11 and multi-media signal MS12 are all the digital TV broadcast signal that meets DVB-T, ISDB-T, DTMB or ATSC.
After the disc-shaped antenna unit 4011 multimedia signal receiving MS10 of multi-media signal bridger 401, FM demodulator 4012 is demodulated to multimedia transmission stream by multi-media signal MS10, modulator 4014 is modulated into multi-media digital television signal MTV1 by multimedia transmission stream, then exports radio-frequency (RF) mixer 410 to.
Please continue with reference to Fig. 4, multi-media broadcasting system 40 has also comprised multimedia server 404 in the present embodiment.Multimedia server 404 connects radio-frequency (RF) mixer 410, wherein store multiple video content, for example film, still image, music, or from meeting National Television System Committee's standard (National Television System Committee, NTSC) or the picture material that receives of the analog tv broadcast signal of Phase Alternate Line (Phase Alternating Line, PAL).
Radio-frequency (RF) mixer 410 receives multi-media digital television signal MTV1～MTV4, and it is compounded in to single coaxial cable (or antenna) and exports a digital television radio-frequency signal, and digital television radio-frequency signal comprises one or more channel CH1～CHk.It should be noted that, because multimedia transmission stream in the present embodiment is all the transmission stream form in MPEG-2, before again being modulated to the multi-media digital television signal MTV1～MTV4 that meets DVB-T, DVB-C, QAM, ISDB-T, DTMB or ATSC standard, do not need to be changed the mode of audio-visual form and coding.
Yet in another embodiment, when the audio-visual form of multimedia transmission stream and the audio-visual call format in the digital picture broadcast standard are not inconsistent, modulator 4014,4026,4034, also comprise a converting unit (not illustrating) in 406, after in the convert multimedia transport stream, the audio-visual form of each program becomes to meet the audio-visual call format of digital television broadcasting standard, modulator 4014,4026,4034,406 are modulated into multi-media digital television signal MTV1～MTV4 by each program in multimedia transmission stream again.
Please continue with reference to Fig. 4, multimedia player 421 comprises demodulator 4211, audio-visual decoder 4212, display unit 4213 and channel switch unit 4214.Demodulator 4211 receives one of them from the channel CH1～CHk of the digital television radio-frequency signal of radio-frequency (RF) mixer 410, is denoted as CHi, and is channel transmission stream CS according to DVB standard demodulation channel CHi.Audio-visual decoder 4212 connects demodulator 4211, and receiving channels transport stream CS the channel transmission of decoding stream CS are video-audio data VC.4213 of output units connect audio-visual decoder 4212, receive video-audio data VC the video-audio data VC that displays the play.4214 connection demodulators 4214 of channel switch unit, receive operation signal OP (for example, by the user, selecting channel to be produced), and according to operation signal OP control demodulator 4211 switching channels (channel CH1～CHk one of them).
In multi-media broadcasting system 40, other multimedia player 422～42p has similar member and annexation to multimedia player 421, at this, does not separately repeat.But it should be noted that multimedia player 421～42p can be connected with radio-frequency (RF) mixer 410 by wired or wireless mode, is arranged according to actual state.In the present embodiment, because channel CH1～CHk modulates in the mode of DVB-T, be the primary digital picture broadcast standard that is suitable for wireless transmission, and also only need simply with coaxial cable, to connect multimedia player 421～42p by wired transmission, connect radio-frequency (RF) mixer 410.
The present invention also provides a kind of media broadcasting method.Fig. 5 is the flow chart of steps according to media broadcasting method that one embodiment of the invention illustrates.Please refer to Fig. 5, at first, when step S101, receive a plurality of multi-media signals, and a plurality of multi-media signals of demodulation are to obtain a plurality of multimedia transmission stream respectively, wherein a plurality of multi-media signals meet digital video broadcast-satellite (DVB-S/DSS) or ground digital television broadcast (DVB-T/ISDB-T/DTMB/ATSC) standard, and a plurality of multimedia transmission stream comprises respectively one or more program.Then, when step S102, modulate respectively a plurality of multimedia transmission stream, to produce respectively a plurality of multi-media digital television signals, wherein each multi-media digital television signal all meets digital television broadcasting, meets DVB-T, DVB-C, QAM, ISDB-T, one of them of DTMB or ATSC standard.Then when step S103, a plurality of multi-media digital television signals of radio frequency mixing, produce digital television radio-frequency signal.The detailed execution mode of this method can, with reference to the explanation of the above embodiments, separately not repeat at this.
In sum, the invention provides a kind of multi-media broadcasting system, method and its device, utilize a plurality of multi-media signal bridgers to receive the signal of a plurality of digital TV channels, the digital television broadcasting in Taiwan of take is example, the first multi-media signal bridger receives the middle video road of 533MHz, and three TV programme are wherein arranged; The second multi-media signal bridger receives the public video road of 545MHz, and three TV programme are wherein arranged; The 3rd multi-media signal bridger receives people's video road of 557MHz, and four TV programme are wherein arranged; The 5th multi-media signal bridger receives the public video road of 569MHz, and a high image quality (HD) TV programme is wherein arranged; The 6th multi-media signal bridger receives the platform video road of 581MHz, and three TV programme and a broadcast program are wherein arranged; The 7th multi-media signal bridger receives the magnificent video road of 597MHz, and three TV programme are wherein arranged.The multi-media signal bridger is also modulated all programs in each channel and sends to each user in system again.
In addition, if the multi-media signal bridger has used diversity antenna technology, user's multimedia player only need to possess general antenna and but still can obtain good signal quality in movement, has reduced significantly the cost that system builds.User's multimedia player also can receive by wireless or wired mode a plurality of channels that are same as the high image quality of original tv platform transmitted signal, has kept user's the quality of viewing and admiring also to avoid complicated distribution problem simultaneously.Though the present invention is mainly for the multi-media broadcasting system in applying on the vehicles, the multimedia system that the present invention also can be applicable to the occasions such as hotel, large public building builds, and also has above-mentioned many merits in the application of these occasions.
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention; have and usually know the knowledgeable in technical field under any; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is as the criterion when looking appended the claim scope person of defining.
Claims (13)
1. a multi-media broadcasting system comprises:
A plurality of multi-media signal bridgers, receive respectively a plurality of multi-media signals, a plurality of multi-media signals of demodulation to be to obtain a plurality of multimedia transmission stream respectively, and modulate respectively a plurality of multimedia transmission and flow to obtain a plurality of multi-media digital television signals, wherein each multimedia transmission stream comprises at least one program, and each digital television signal meets a digital television broadcasting standard;
One radio-frequency (RF) mixer, be connected to a plurality of multi-media signal bridgers, and this radio-frequency (RF) mixer receives a plurality of multi-media digital television signals, and by compound output one digital television radio-frequency signal of a plurality of multi-media digital television signals;
A plurality of multimedia players, wireless or be typically wire connected to this radio-frequency (RF) mixer, receive this digital television radio-frequency signal, and obtain and play this program according to this digital television broadcasting standard.
2. multi-media broadcasting system according to claim 1, wherein this digital television broadcasting standard is the group that selects free ground digital television broadcast standard, cable digital TV broadcast standard, quadrature amplitude modulation standard, floor synthetic digital service broadcast standard, terrestrial DTV multimedia broadcasting standard and AdvancedTelevision Standards Committee's standard to form.
3. multi-media broadcasting system according to claim 1, wherein one of them of a plurality of multi-media signal bridgers comprises:
One antenna, receive one first multi-media signal;
One FM demodulator, be connected to this antenna, and, from this first multi-media signal of this antenna reception, this first multi-media signal of demodulation obtains one first multimedia transmission stream; And
One modulator, be connected to this FM demodulator, from this FM demodulator, receives this first multimedia transmission stream, modulates this first multimedia transmission stream and obtain one first multi-media digital television signal.
4. multi-media broadcasting system according to claim 1, wherein one of them of a plurality of multi-media signal bridgers comprises:
One attached antenna, receive one second multi-media signal with a characteristic frequency;
One main antenna, also receive this second multi-media signal with this characteristic frequency;
One diversity merges demodulator, is connected to this main antenna and this attached antenna, and this second multi-media signal of demodulation is to obtain one second multimedia transmission stream; And
One modulator, be connected to this diversity and merge demodulator, receives this second multimedia transmission stream, modulates this second multimedia transmission stream and obtain one second multi-media digital television signal.
5. multi-media broadcasting system according to claim 1, wherein one of them of a plurality of multi-media signal bridgers comprises:
One attached antenna, receive one second multi-media signal with a characteristic frequency;
One attached FM demodulator, connect this attached antenna, receive this second multi-media signal from this attached antenna, and this second multi-media signal of demodulation obtains the attached output signal of a diversity;
One main antenna, also receive this second multi-media signal with this characteristic frequency;
One homophony is demodulator frequently, be connected to this main antenna and this attached FM demodulator, receive the attached output signal of this diversity and from this second multi-media signal of this main antenna, this second multi-media signal of demodulation is to obtain a main output signal, diversity merges the attached output signal of this diversity and this main output signal, obtains one second multimedia transmission stream; And
One modulator, be connected to this homophony demodulator frequently, receives this second multimedia transmission stream, modulates this second multimedia transmission stream and obtain one second multi-media digital television signal.
6. multi-media broadcasting system according to claim 1, wherein this multimedia player comprises:
One demodulator, receive this digital television radio-frequency signal, according to this this digital television radio-frequency signal of digital television broadcasting standard demodulation, is a channel transmission stream;
One audio-visual decoder, connect this demodulator, receives that this channel transmission flows and this channel transmission stream of decoding is obtained this program;
One output unit, connect this audio-visual decoder, receives and play this program; And
One channel switch unit, connect this demodulator, receives an operation signal and receive this digital television radio-frequency signal to control this demodulator switching.
7. multi-media broadcasting system according to claim 1 also comprises:
One multimedia server, compressing at least one the 3rd multi-media signal is one the 3rd multimedia transmission stream;
One modulator, be connected to this multimedia server, receives the 3rd multimedia transmission stream, modulates the 3rd multimedia transmission stream and obtain one the 3rd digital television signal, and transmit the 3rd digital television signal to this radio-frequency (RF) mixer.
8. a media broadcasting method comprises:
A. receive a plurality of multi-media signals, and a plurality of multi-media signals of demodulation are to obtain respectively a plurality of multimedia transmission stream respectively, wherein each multimedia transmission stream comprises respectively at least one program;
B. modulate respectively a plurality of multimedia transmission stream, to produce respectively a plurality of multi-media digital television signals, wherein each media digital television signal meets a digital television broadcasting standard; And
C. a plurality of multi-media digital television signals of radio frequency mixing, produce a digital television radio-frequency signal.
9. media broadcasting method according to claim 8, wherein this digital television broadcasting standard is the group that selects free ground digital television broadcast standard, cable digital TV broadcast standard, quadrature amplitude modulation standard, floor synthetic digital service broadcast standard, terrestrial DTV multimedia broadcasting standard and AdvancedTelevision Standards Committee's standard to form.
10. media broadcasting method according to claim 8, wherein step a comprises:
By an antenna, receive one of them of a plurality of multi-media signals with a characteristic frequency; And
One of them of the plurality of multi-media signal of demodulation, to obtain one of them that a plurality of multimedia transmission flow.
11. media broadcasting method according to claim 8, wherein step a comprises:
By an attached antenna, receive one of them of a plurality of multi-media signals with a characteristic frequency;
By a main antenna, receive one of them of the plurality of multi-media signal with this characteristic frequency;
Diversity merges one of them of the plurality of multi-media signal of demodulation, to obtain one of them that a plurality of multimedia transmission flow.
12. media broadcasting method according to claim 8, wherein step a comprises:
By an attached antenna, receive one of them of a plurality of multi-media signals with a characteristic frequency;
One of them of the plurality of multi-media signal of demodulation, to obtain the attached output signal of a diversity;
By a main antenna, receive one of them of the plurality of multi-media signal with this characteristic frequency;
One of them of the plurality of multi-media signal of demodulation, to obtain a main output signal; And
Diversity merges the attached output signal of this diversity and this main output signal obtains one of them that a plurality of multimedia transmission flow.
13. media broadcasting method according to claim 8 also comprises:
D. receiving by wireless or cable this digital television radio-frequency signal, is a channel transmission stream according to this this digital television radio-frequency signal of digital television broadcasting standard demodulation;
E. this channel transmission of decoding is miscarried and is given birth to this program;
F. play this program; And
G. receive an operation signal, and switch this digital television radio-frequency signal according to this operation signal.
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| TW101117447A TWI523522B (en) | 2012-05-16 | 2012-05-16 | System of multimedia brocasting, method and apparatus thereof |
| TW101117447 | 2012-05-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105611367A (en) * | 2015-12-29 | 2016-05-25 | 深圳多尼卡互联技术有限公司 | Method for transmitting data to aircraft, ground device, airborne device and airborne system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072300A (en) * | 1991-11-01 | 1993-05-19 | 德律风根电视广播责任有限公司 | Radio broadcast sending system and broadcasting radio receiver |
| CN1728818A (en) * | 2005-07-29 | 2006-02-01 | 上海广电通讯网络有限公司 | Wireless distribution association mode of digital TV contents for multiple receiving terminals shared in same account |
| CN1918911A (en) * | 2003-12-26 | 2007-02-21 | 韩国电子通信研究院 | Apparatus and method for transforming a digital TV broadcasting signal to a digital radio broadcasting signal |
| CN101510965A (en) * | 2009-03-11 | 2009-08-19 | 深圳市融创天下科技发展有限公司 | Classification access system and method for multiple mobile terminals of digital television set-top box |
| CN201919163U (en) * | 2010-12-14 | 2011-08-03 | 北京瀚宏嘉捷科技有限公司 | Multi-mode multimedia wireless router and receiving terminal thereof, and network system |
-
2012
- 2012-05-16 TW TW101117447A patent/TWI523522B/en active
- 2012-06-19 CN CN2012102082350A patent/CN103428455A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072300A (en) * | 1991-11-01 | 1993-05-19 | 德律风根电视广播责任有限公司 | Radio broadcast sending system and broadcasting radio receiver |
| CN1918911A (en) * | 2003-12-26 | 2007-02-21 | 韩国电子通信研究院 | Apparatus and method for transforming a digital TV broadcasting signal to a digital radio broadcasting signal |
| CN1728818A (en) * | 2005-07-29 | 2006-02-01 | 上海广电通讯网络有限公司 | Wireless distribution association mode of digital TV contents for multiple receiving terminals shared in same account |
| CN101510965A (en) * | 2009-03-11 | 2009-08-19 | 深圳市融创天下科技发展有限公司 | Classification access system and method for multiple mobile terminals of digital television set-top box |
| CN201919163U (en) * | 2010-12-14 | 2011-08-03 | 北京瀚宏嘉捷科技有限公司 | Multi-mode multimedia wireless router and receiving terminal thereof, and network system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611367A (en) * | 2015-12-29 | 2016-05-25 | 深圳多尼卡互联技术有限公司 | Method for transmitting data to aircraft, ground device, airborne device and airborne system |
| CN105611367B (en) * | 2015-12-29 | 2019-03-22 | 深圳多尼卡互联技术有限公司 | To the method for aircraft transmissions data, ground installation, airborne device and airborne system |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI523522B (en) | 2016-02-21 |
| TW201349863A (en) | 2013-12-01 |
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