CN104853258A - Video-audio data transmission system - Google Patents
Video-audio data transmission system Download PDFInfo
- Publication number
- CN104853258A CN104853258A CN201410051653.2A CN201410051653A CN104853258A CN 104853258 A CN104853258 A CN 104853258A CN 201410051653 A CN201410051653 A CN 201410051653A CN 104853258 A CN104853258 A CN 104853258A
- Authority
- CN
- China
- Prior art keywords
- video
- audio
- satellite network
- module
- satellite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Radio Relay Systems (AREA)
Abstract
The invention provides a video-audio data transmission system, and the system comprises video-audio collection equipment, a satellite network, non-satellite network binding transmission equipment, a satellite network transmission line, a non-satellite network transmission line, a receiving server, and client equipment. The system enables the satellite network and a 3G/4G network to be integrated together, and enables the video-audio data collected by the video-audio collection equipment to be transmitted through the satellite network and the 3G/4G network at the same time, thereby effectively giving play to the advantages of the satellite network and the 3G/4G network, improving the integral transmission bandwidth and speed, and ironing out the defects of data loss and large bandwidth fluctuation caused by a single mode of network transmission. The system is suitable for the industry of radio and television, emergency communication, and other high-quality video-audio transmission application.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of video/audio transmission system.
Background technology
Satellite communication system forwards microwave signal using satellite as relay station, communicates between multiple ground station, and the main purpose of satellite communication realizes covering ground " seamless ".Satellite communication system is expansion and the extension of terrestrial communications systems, and satellite communication network can cover the place that the ground networks such as marine site, spatial domain and remote physical features complex area cannot cover, and can provide the communication overlay of more wide area.Satellite will play vital effect in the communication system in future, and satellite network can form strong supplementing to ground network.
Along with the development of Broadband Satellite technology, IP accesses the technology combined with satellite transmission and is applied, but because broadband satellite purposes is wider, terminal quantity is huge, cause the live Time Bandwidth of broadband satellite normally can only reach 1.5M-2M, the high speed that can not meet high-definition-television signal completely propagates demand.Secondly, due to the forwarding using satellite to carry out data, the link delay between star ground is inevitable, the shake of time delay is for the strict communication system of time requirement, such as live telecast brings very large destabilizing factor, therefore, needs a kind of high bandwidth and reliable and stable transmission plan badly.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of video/audio transmission system, and the high speed that can not meet high-definition-television signal for solving prior art middle width strip satellite completely propagates the problem of demand.
For achieving the above object and other relevant objects, the invention provides a kind of video/audio transmission system, described video/audio transmission system at least comprises: video and audio collecting device, satellite network and non-satellite network binding transmission equipment, satellite network transmission line, non-satellite network transmission line, reception server and client device, wherein
Described video and audio collecting device is for gathering video/audio;
Described video/audio for receiving described video/audio, and is sent to described reception server respectively by described satellite network transmission line and non-satellite network transmission line by described satellite network and non-satellite network binding transmission equipment;
Described satellite network transmission line comprises satellite, satellite antenna and satellite data receiving system, described satellite antenna is for receiving the video/audio of described satellite network and the transmission of non-satellite network binding transmission equipment and transferring to satellite, be forwarded to described satellite data receiving system by described satellite, described satellite data receiving system is used for the video/audio of reception to transfer to described reception server;
Described reception server is used for the video/audio of reception to transfer to described client device.
Preferably, described satellite network and non-satellite network binding transmission equipment comprise: video encoding module, interface module, radio-frequency module, transmitter module and power module, wherein,
Described video encoding module, for receiving the video/audio from described video and audio collecting device, carries out compressed encoding to video/audio, and the video/audio after coding is sent to described interface module and radio-frequency module respectively;
Described interface module is used for the video/audio of reception to transfer to described satellite network transmission line;
Described radio-frequency module is that described transmitter module is powered, and the video/audio of reception is transferred to described transmitter module, is sent to described non-satellite network transmission line by described transmitter module;
Described power module is used for powering to described video encoding module, interface module, radio-frequency module and transmitter module.
Preferably, video/audio after coding is packaged into IP packet by described video encoding module, described IP packet segmentation is become the divided data bag of fixed length, and each divided data bag is marked, described divided data bag re-assemblies as initial video/audio according to described mark by described client device.
Preferably, described satellite network and non-satellite network binding transmission equipment also comprise interfacing expansion module, connect described video encoding module, interface module and radio-frequency module, video/audio after described video encoding module coding for expanding the output interface of described video encoding module, and is sent to described interface module and radio-frequency module by described interfacing expansion module simultaneously.
Preferably, described interface module is RJ45 interface.
Preferably, also comprise radiating module, dispel the heat for the heat that described satellite network and non-satellite network binding transmission equipment are produced.
Preferably, the video/audio of described reception is sent to described satellite network transmission line and non-satellite network transmission line in the mode of load balancing by described satellite network and non-satellite network binding transmission equipment simultaneously.
Preferably, described client device comprises decoder and video and audio-editing device, wherein,
Described decoder is used for the video/audio that described reception server sends to decode, and is sent to video and audio-editing device;
Described video and audio-editing device is used for editing described video/audio.
Preferably, described video and audio-editing device is matrix or cut bank.
Preferably, described client device also comprises storage device, for storing described video/audio.
Preferably, described satellite network transmission line transmits video/audio by ICP/IP protocol, and described non-satellite network transmission line transmits video/audio based on 3G/4G network by ICP/IP protocol.
As mentioned above, video/audio transmission system of the present invention, has following beneficial effect:
First, satellite network and 3G/4G network merge by the present invention, the video/audio of video and audio collecting device collection is transmitted respectively by satellite network links and 3G/4G network line simultaneously, effective advantage having played satellite network links and 3G/4G network line, improve overall transfer bandwidth sum transmission speed, and overcome the loss of data that single network transmission means causes, the defect that bandwidth fluctuation is larger, be applicable to the high-quality long-range video and audio passback application such as broadcast television industry, emergency communication.
Secondly, video encoding module in satellite network and non-satellite network binding transmission equipment is after completing the coding of video/audio, video/audio after coding is packaged into IP packet, described IP packet segmentation is become the divided data bag of fixed length, and be sent to satellite network transmission line and non-satellite network transmission line respectively after being marked by each divided data bag, client device is receiving packet, according to described mark, described divided data bag is re-assemblied as initial video/audio, thus further increase the stability of transfer of data, use cost is considerably reduced while the passback of guarantee video and audio high-quality.
Accompanying drawing explanation
Fig. 1 is shown as the schematic diagram of video/audio transmission system of the present invention.
Fig. 2 is shown as the schematic diagram of satellite network of the present invention and non-satellite network binding transmission equipment.
Element numbers explanation
1 satellite network and non-satellite network binding transmission equipment
2 satellite network transmission lines
3 reception servers
4 client devices
5 video and audio collecting devices
11 video encoding modules
12 interface modules
13 interfacing expansion modules
14 radio-frequency modules
15 transmitter modules
16 power modules
17 radiating modules
21 satellite antennas
22 satellites
23 satellite data receiving systems
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Consider that existing direct broadcasting satellite Time Bandwidth normally can only reach 1.5M-2M, the high speed that can not meet high-definition-television signal completely propagates demand, and 3G/4G transmission means is widely used in live telecast field with advantages such as its expense are low, easy to use, transmission range is long, equipment is cheap.Such as, at home, the upstream rate of CHINAUNICOM WCDMA is up to about 5.8M, is better than China Mobile and China Telecom.In the practical application of 3G, in single deck tape-recorder situation, the upstream rate of UNICOM WCDMA is about 1.5Mbps, the upstream rate of telecommunications CDMA2000 is 500kbps, and the upstream rate of mobile TD-SCDMA is 384kps, when H.264 encoding, adopt the mode of many card bindings, the transmission rate of passage is improved, to meet the TV signal of high code stream, and due to the combination of different operators 3G card can be adopted by link aggregation technology, form multi-chain circuit transmission, the quality of transmission is better ensured.Therefore, satellite network and 3G/4G network creatively merge by the present invention, are transmitted by the video/audio of video and audio collecting device collection respectively by satellite network links and 3G/4G network line simultaneously.
Refer to the schematic diagram of Fig. 1 video/audio transmission system of the present invention.
It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
As shown in Figure 1, described video/audio transmission system at least comprises: video and audio collecting device 5, satellite network and non-satellite network binding transmission equipment 1, satellite network transmission line 2, non-satellite network transmission line 6, reception server 3 and client device 4, wherein
Described video and audio collecting device 5 is for gathering video/audio;
Described video/audio for receiving described video/audio, and is sent to described reception server 3 respectively by described satellite network transmission line 2 and non-satellite network transmission line by described satellite network and non-satellite network binding transmission equipment 1;
Described satellite network transmission line 2 comprises satellite 22, satellite antenna 21 and satellite data receiving system 23, described satellite antenna 21 is for receiving the video/audio of described satellite network and the transmission of non-satellite network binding transmission equipment 1 and being sent to satellite 22 by up link, be forwarded to described satellite data receiving system 23 by described satellite 22, described satellite data receiving system 23 is for transferring to described reception server 3 by the video/audio of reception;
Described reception server 3 is for transferring to described client device 4 by the video/audio of reception, reception server 3 carries service software and control inerface, receive video/audio signal, and be forwarded to decoders decode or be stored into specified folder, support that preview and output supervise, support the input of multichannel front end.
It should be noted that, described video and audio collecting device 5 comprises video camera, recording device etc., the video/audio that video and audio collecting device 5 gathers after treatment, transfers to satellite network and non-satellite network binding transmission equipment 1 with the form of sdi signal or CVBS analog signal.Described satellite data receiving system 23 is ground station (port station), at ground receiver satellite 22 signal, and is transferred to ground IP network.Described ground station is the interface of satellite system and ground IP network, and described ground station is routed to data by routing device the address of specifying after receiving satellite-signal.Described satellite network transmission line 2 transmits video/audio by ICP/IP protocol, described non-satellite network transmission line is 3G/4G backbone network, and described non-satellite network transmission line transmits video/audio based on 3G/4G network by ICP/IP protocol transmission video/audio.
Preferably, the video/audio of reception is sent to described satellite network transmission line 2 and non-satellite network transmission line in the mode of load balancing by described satellite network and non-satellite network binding transmission equipment 1 simultaneously, particularly, by the application program under linux embedded OS, utilize ICP/IP protocol, video/audio is sent to the satellite network transmission line 2 and non-satellite network transmission line of supporting ICP/IP protocol in the mode of load balancing simultaneously.
Described satellite can be satellite (GEO), low-orbit satellite (LEO), medium earth orbit satellite (MEO) or high orbit satellite (HEO).The frequency range of described satellite can be that C frequency range, Ku frequency range, Ka frequency range or Ku/Ka mix frequency range.
It should be noted that, described client device 4 comprises decoder and video and audio-editing device, wherein,
Described decoder is used for the video/audio that described reception server 3 sends to decode, and after decoding, SDI video/audio signal or CVBS video and audio analog signal is sent to video and audio-editing device;
Described video and audio-editing device is used for editing described video/audio.
Preferably, described video and audio-editing device is matrix or cut bank.
It should be noted that, described cut bank (Switcher) makes for multiple-camera studio or outdoor scene, by cutting, folded picture, drawing picture and connect selected video, and then creation and embed other stunts to complete the equipment of program making.The major function of cut bank is provided convenience to editing in time, selects various video material and they be connected in turn by transition skill.
The basic function of cut bank comprises: from several video input, select the video material that suitable; Basic conversion is selected between two video materials; And by creating or access stunt, video material is connected in turn.Some cut bank automatically according to the audio frequency of the Video Quality Metric program of program, can be called AFV(Audio follow Vedio).
Preferably, described client device 4 also comprises storage device, for storing described video/audio.Preferably, described client device 4 also can be opened and show video/audio.
It should be noted that, described matrix can be video matrix or video/audio matrix, video matrix refers to that the method switched by array can be delivered on the display terminal on any road the signal on any road providing the equipment of signal source, and generally the input of matrix is greater than output and m>n.If increase Audio conversion function in video matrix, just video and audio signal can be carried out synchronism switching, this matrix is video/audio matrix.
The operation principle of described video/audio transmission system is: video and audio collecting device 5 exports satellite network and non-satellite network binding transmission equipment 1 to after gathering video/audio, the video/audio of reception is sent to described satellite network transmission line 2 and non-satellite network transmission line by described satellite network and non-satellite network binding transmission equipment 1 simultaneously, reception server 3 is transferred to respectively again through satellite network transmission line 2 and non-satellite network transmission line, the video/audio of reception is transferred to described client device 4 by reception server 3, undertaken decoding and editing by client device 4.
Refer to the schematic diagram of Fig. 2 satellite network of the present invention and non-satellite network binding transmission equipment 1.
As shown in Figure 2, described satellite network and non-satellite network binding transmission equipment 1 comprise: video encoding module 11, interface module 12, radio-frequency module 14, transmitter module 15 and power module 16, wherein,
Described video encoding module 11, for receiving the video/audio from described video and audio collecting device 5, carries out compressed encoding to video/audio, and the video/audio after coding is sent to described interface module 12 and radio-frequency module 14 respectively;
Described interface module 12 is for transferring to described satellite network transmission line 2 by the video/audio of reception;
Described radio-frequency module 14 is powered for described transmitter module 15, and the video/audio of reception is transferred to described transmitter module 15, is sent to described non-satellite network transmission line by described transmitter module 15;
Described power module 16 is for powering to described video encoding module 11, interface module 12, radio-frequency module 14 and transmitter module 15.
It should be noted that, described video encoding module 11, interface module 12 and radio-frequency module 14 and transmitter module 15 can be become one, be fixed in same rack-mount unit.
Video encoding module 11 can adopt H.264 coded system to encode to video/audio, and other coding techniquess certainly also can be adopted to encode.For different videos, different coding modes can be adopted, if such as background is static, can intra-frame encoding mode be adopted, if background is dynamic, the pattern of intraframe coding and interframe encode mixing can be adopted.
It should be noted that, described video encoding module 11 is after completing the coding of video/audio, video/audio after coding is packaged into IP packet, and be that each packet adds header packet information, comprise source IP address, target ip address and video/audio, afterwards described IP packet segmentation is become the divided data bag of fixed length, and each divided data bag is marked, each divided data bag has a numbering, described interface module 12 and radio-frequency module 14 is sent to respectively by described interfacing expansion module 13, then satellite network transmission line 2 and non-satellite network transmission line is entered respectively by described interface module 12 and the transmitter module 15 that is connected with radio-frequency module 14, transfer to reception server 3, client device 4 is transferred to again by reception server 3, described divided data bag re-assemblies as initial video/audio according to described mark by described client device 4.
Preferably, described satellite network and non-satellite network binding transmission equipment 1 also comprise interfacing expansion module 13, connect described video encoding module 11, interface module 12 and radio-frequency module 14, video/audio after described video encoding module coding for expanding the output interface of described video encoding module, and is sent to described interface module and radio-frequency module by described interfacing expansion module simultaneously.
In embodiments of the present invention, described video encoding module 11 expands at least two interfaces by interfacing expansion module 13, for connecing RJ45 interface and radio-frequency module 14.Preferably, interfacing expansion module 13 is usb hub.
Preferably, described interface module 12 is RJ45 interface.Preferably, described radio-frequency module 14 comprises radio frequency line.
Preferably, described satellite network and non-satellite network binding transmission equipment 1 also comprise radiating module 17, dispel the heat for the heat described satellite network and non-satellite network binding transmission equipment 1 produced.Described radiating module 17 is fixed in same rack-mount unit with described video encoding module 11, interface module 12 and radio-frequency module 14.
Preferably, video/audio transmission system of the present invention is used for TV station, also can as required for other occasions, and this is not restricted in the present invention.
In sum, video/audio transmission system of the present invention, has following beneficial effect:
First, satellite network and 3G/4G network merge by the present invention, the video/audio of video and audio collecting device collection is transmitted respectively by satellite network links and 3G/4G network line simultaneously, effective advantage having played satellite network links and 3G/4G network line, improve overall transfer bandwidth sum transmission speed, and overcome the loss of data that single network transmission means causes, the defect that bandwidth fluctuation is larger, be applicable to the high-quality long-range video and audio passback application such as broadcast television industry, emergency communication.
Secondly, video encoding module in satellite network and non-satellite network binding transmission equipment is after completing the coding of video/audio, video/audio after coding is packaged into IP packet, described IP packet segmentation is become the divided data bag of fixed length, and be sent to satellite network transmission line and non-satellite network transmission line respectively after being marked by each divided data bag, client device is receiving packet, according to described mark, described divided data bag is re-assemblied as initial video/audio, thus further increase the stability of transfer of data, use cost is considerably reduced while the passback of guarantee video and audio high-quality.
So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (11)
1. a video/audio transmission system, it is characterized in that, described video/audio transmission system at least comprises: video and audio collecting device, satellite network and non-satellite network binding transmission equipment, satellite network transmission line, non-satellite network transmission line, reception server and client device, wherein
Described video and audio collecting device is for gathering video/audio;
Described video/audio for receiving described video/audio, and is sent to described reception server respectively by described satellite network transmission line and non-satellite network transmission line by described satellite network and non-satellite network binding transmission equipment;
Described satellite network transmission line comprises satellite, satellite antenna and satellite data receiving system, described satellite antenna is for receiving the video/audio of described satellite network and the transmission of non-satellite network binding transmission equipment and transferring to satellite, be forwarded to described satellite data receiving system by described satellite, described satellite data receiving system is used for the video/audio of reception to transfer to described reception server;
Described reception server is used for the video/audio of reception to transfer to described client device.
2. video/audio transmission system according to claim 1, is characterized in that, described satellite network and non-satellite network binding transmission equipment comprise: video encoding module, interface module, radio-frequency module, transmitter module and power module, wherein,
Described video encoding module, for receiving the video/audio from described video and audio collecting device, carries out compressed encoding to video/audio, and the video/audio after coding is sent to described interface module and radio-frequency module respectively;
Described interface module is used for the video/audio of reception to transfer to described satellite network transmission line;
Described radio-frequency module is that described transmitter module is powered, and the video/audio of reception is transferred to described transmitter module, is sent to described non-satellite network transmission line by described transmitter module;
Described power module is used for powering to described video encoding module, interface module, radio-frequency module and transmitter module.
3. video/audio transmission system according to claim 2, it is characterized in that: the video/audio after coding is packaged into IP packet by described video encoding module, described IP packet segmentation is become the divided data bag of fixed length, and each divided data bag is marked, described divided data bag re-assemblies as initial video/audio according to described mark by described client device.
4. video/audio transmission system according to claim 2, it is characterized in that: also comprise interfacing expansion module, connect described video encoding module, interface module and radio-frequency module, video/audio after described video encoding module coding for expanding the output interface of described video encoding module, and is sent to described interface module and radio-frequency module by described interfacing expansion module simultaneously.
5. video/audio transmission system according to claim 2, is characterized in that: described interface module is RJ45 interface.
6. video/audio transmission system according to claim 2, is characterized in that: also comprise radiating module, dispels the heat for the heat described satellite network and non-satellite network binding transmission equipment produced.
7. video/audio transmission system according to claim 1, is characterized in that: the video/audio of described reception is sent to described satellite network transmission line and non-satellite network transmission line in the mode of load balancing by described satellite network and non-satellite network binding transmission equipment simultaneously.
8. video/audio transmission system according to claim 1, is characterized in that: described client device comprises decoder and video and audio-editing device, wherein,
Described decoder is used for the video/audio that described reception server sends to decode, and is sent to video and audio-editing device;
Described video and audio-editing device is used for editing described video/audio.
9. video/audio transmission system according to claim 8, is characterized in that: described video and audio-editing device is matrix or cut bank.
10. video/audio transmission system according to claim 8, is characterized in that: described client device also comprises storage device, for storing described video/audio.
11. video/audio transmission systems according to claim 1, it is characterized in that: described satellite network transmission line transmits video/audio by ICP/IP protocol, described non-satellite network transmission line transmits video/audio based on 3G/4G network by ICP/IP protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051653.2A CN104853258A (en) | 2014-02-14 | 2014-02-14 | Video-audio data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051653.2A CN104853258A (en) | 2014-02-14 | 2014-02-14 | Video-audio data transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104853258A true CN104853258A (en) | 2015-08-19 |
Family
ID=53852551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410051653.2A Pending CN104853258A (en) | 2014-02-14 | 2014-02-14 | Video-audio data transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104853258A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611311A (en) * | 2016-02-05 | 2016-05-25 | 丁锋 | Cinema live broadcasting system |
| CN106028133A (en) * | 2016-07-05 | 2016-10-12 | 神华集团有限责任公司 | Miracast protocol-based audio/video transmission apparatus, method and system |
| CN114268806A (en) * | 2021-12-24 | 2022-04-01 | 南京纳加软件股份有限公司 | Signal processing method of high-smoothness live broadcast control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0965322A (en) * | 1995-08-22 | 1997-03-07 | Matsushita Electric Ind Co Ltd | Two-way communication system |
| CN101414866A (en) * | 2007-10-17 | 2009-04-22 | 中卫视讯卫星科技（北京）有限公司 | Mobile target satellite tracking localization, recognition, voice video and data transmission terminal |
| CN101964904A (en) * | 2010-10-11 | 2011-02-02 | 北京中科大洋科技发展股份有限公司 | Method for realizing live broadcast of television news by using wireless communication network |
| CN102387067A (en) * | 2011-09-27 | 2012-03-21 | 陕西中联电科电子有限公司 | Various networks based polymorphism information interaction system |
-
2014
- 2014-02-14 CN CN201410051653.2A patent/CN104853258A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0965322A (en) * | 1995-08-22 | 1997-03-07 | Matsushita Electric Ind Co Ltd | Two-way communication system |
| CN101414866A (en) * | 2007-10-17 | 2009-04-22 | 中卫视讯卫星科技（北京）有限公司 | Mobile target satellite tracking localization, recognition, voice video and data transmission terminal |
| CN101964904A (en) * | 2010-10-11 | 2011-02-02 | 北京中科大洋科技发展股份有限公司 | Method for realizing live broadcast of television news by using wireless communication network |
| CN102387067A (en) * | 2011-09-27 | 2012-03-21 | 陕西中联电科电子有限公司 | Various networks based polymorphism information interaction system |
Non-Patent Citations (1)
| Title |
|---|
| 苏润华: "TVU3G/4G应急图传解决方案", 《卫星与网络》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611311A (en) * | 2016-02-05 | 2016-05-25 | 丁锋 | Cinema live broadcasting system |
| CN106028133A (en) * | 2016-07-05 | 2016-10-12 | 神华集团有限责任公司 | Miracast protocol-based audio/video transmission apparatus, method and system |
| CN114268806A (en) * | 2021-12-24 | 2022-04-01 | 南京纳加软件股份有限公司 | Signal processing method of high-smoothness live broadcast control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5651010A (en) | Simultaneous overlapping broadcasting of digital programs | |
| US6005605A (en) | Television distribution system and method | |
| CN105392020A (en) | Internet video direct broadcasting method and system | |
| EP2290981B1 (en) | Method for the transmission and distribution of digital television signals | |
| CA2794400C (en) | Satellite communication system and method for transmitting data | |
| CN106804014A (en) | A kind of medium living broadcast method based on 4G wireless private networks | |
| CA2761347A1 (en) | Satellite signal distribution | |
| CN111726700A (en) | Video relay system and video receiving system | |
| US7231178B2 (en) | Virtual channel satellite communication system with improved bandwidth efficiency | |
| JP2009105902A (en) | Method and apparatus for splicing compressed information signal | |
| CN103813203A (en) | Household television multi-screen display system | |
| CN102291399B (en) | Streaming media switching platform | |
| CN104581205A (en) | Sending end, receiving end and video transmission method and system | |
| CN110418167A (en) | A kind of broadcast TV program Transmission system based on 5G | |
| CN108200394A (en) | A kind of UAV system that multiway images is supported to transmit | |
| CN104853258A (en) | Video-audio data transmission system | |
| CN101547341B (en) | Method and device for realizing intercommunication of video monitoring system and video service system | |
| CN105519034B (en) | The method and system and its receiver of transmitting satellite signal | |
| US9055316B2 (en) | Method and system for inserting digital video effects into a video stream at a multiplexing device after routing | |
| CN103701813A (en) | Method for realizing data dissemination and interaction by combining one-to-all broadcast with bilateral network | |
| CN111770065A (en) | Uplink transmission method and downlink transmission method of ultra-high definition video signal | |
| Kawamoto et al. | Remote Production Experiments with Lightweight Compressed 8K UHDTV over IP Device | |
| CN104469403A (en) | System and method for transmitting and receiving TS with network as transmission medium | |
| CN103024448A (en) | IPQAM (internet protocol quadrature amplitude modulation)-based multi-screen interacting method and IPQAM-based video terminal equipment | |
| CN204465760U (en) | Network is utilized to send as transmission medium and receive the system of TS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150819 |
|
| WD01 | Invention patent application deemed withdrawn after publication |