CN104410869B - Cloud broadcast system, mixing broadcast system and cloud broadcasting method - Google Patents
Cloud broadcast system, mixing broadcast system and cloud broadcasting method Download PDFInfo
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- CN104410869B CN104410869B CN201410670757.1A CN201410670757A CN104410869B CN 104410869 B CN104410869 B CN 104410869B CN 201410670757 A CN201410670757 A CN 201410670757A CN 104410869 B CN104410869 B CN 104410869B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23614—Multiplexing of additional data and video streams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2387—Stream processing in response to a playback request from an end-user, e.g. for trick-play
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4344—Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
Abstract
The invention discloses cloud broadcast system, mixing broadcast system and cloud broadcasting methods.The cloud broadcast system includes：Local to broadcast control device, material server and Cloud Server, the local control device that broadcasts is for controlling programme and the push of program material and the broadcast of program；Material server provides program material to be broadcasted；Cloud Server is connected with the local broadcast control device and the material server, receives the programme and program material of push, and will be sent to designated position after program material processing.Method according to the present invention, by programme and program material from being locally pushed Cloud Server；The program material received is processed into TS streams by the cloud server；The TS streams are sent to designated position.The present invention improves a lot in construction cost, period, operation maintenance, upgrading, safety etc., facilitates and realizes that isomery, strange land broadcast, and the computer room for having network condition and necessary video equipment substantially can be completed.
Description
Technical field
The present invention relates to radio and television playing control system technical fields, specifically, being related to cloud broadcast system, mixing is broadcast
Go out system and cloud broadcasting method.
Background technology
The current broadcast system of TV station generally includes local broadcast control device and video server.Wherein, video takes
There is the material of all kinds of video frequency programs for broadcast in business device.It broadcasts and has the broadcast items list that editor completes in control machine
(also referred to as job order), has the ID of broadcast items, the information such as airtime, also, the ID in programme to be taken with video in programme
The program being engaged in device is corresponding.The decoding channels that control machine controls video server according to program ID are broadcasted, it can be pre-
It fixes time and broadcasts scheduled program.
In order to broadcast safety, TV station generally uses carrying out safety backup measure, as shown in Figure 1, being active and standby two sets of broadcast systems
Schematic diagram.Main broadcaster goes out control machine 101 and is connect with main video server 102, standby to broadcast control machine 201 and standby video server 202
Connection, the output of active and standby video server 102 and 202 are connected to signal switching apparatus 50, by controlling signal switching apparatus
50, finally the decoded signal that video server all the way exports is transmitted outward.Pass through between active and standby broadcast control machine 101 and 201
Network exchange data, and be consistent.Active and standby video server 102 and 202 generally has same video frequency program.
In the present system, when the primary decoded signal that main video server 102 exports is out of order, by signal switching apparatus 50
Standby decoded signal is switched into final output, to realize the uninterrupted outside transmission of decoded signal.Go out control machine in main broadcaster
101 when something goes wrong, and standby control machine 201 of broadcasting obtains control, serves as the role that main broadcaster goes out control machine 101, controls standby video
Server 202 exports standby decoded signal.Decoded signal switches general synchronous progress with broadcast control machine.
To reinforce security mechanism, for important channel, also more carrying out safety backup mechanism.
For example, being broadcast using third is standby, configuration third is standby to broadcast control machine and the standby video server broadcast of third.Principle with above
The active and standby broadcast is consistent, and the standby decoded signal for broadcasting output of third also enters into signal switching apparatus, selective output.The
Three standby broadcast can be cold standby or hot standby.So-called cold standby refers to and does not start this set system usually, only go out to ask in main or standby system
When topic, the system to go wrong is taken over, constitutes new active and standby broadcast system.It is so-called hot standby, that is, refer to and is opened simultaneously with main preparation system
Dynamic, formation is active and standby, two broadcast jointly for three sets, and signal switching apparatus selects the signal of main broadcast system to cut out first, in main broadcaster
Go out system signal it is problematic when, select the signal of standby broadcast system, when active and standby all problematic, select third standby
The signal of broadcast system.
The security mechanism that TV station uses, in addition to back mechanism, the also mode of gasket.Use a special decoding
Channel is used to broadcast the propaganda film or some column pieces of platform, and broadcasting signal is input to signal switching apparatus 50 shown in FIG. 1, makees
For alternative input source all the way.When other back mechanisms all do not work, the signal is broadcasted.At this moment, TV station is original
Broadcast task really stopped, and broadcast is interim signal.
Before gasket, some TV stations also use more security mechanisms, such as video recorder for broadcasting.It is ready to record a video
Band and video recorder select vcr signal to broadcast when necessary.Some even using the 4th it is standby broadcast, the 5th it is standby broadcast, it is former
It manages almost the same.There is the requirement of isomery (computer uses different operating system) for some are broadcast, can have one to virus attack etc.
Determine defense reaction.
Currently, management organization proposes further requirement to standby broadcast, to prevent accident, disaster etc., it is desirable that different
Ground is standby to be broadcast, that is, requires to have for channel is broadcast in different places.
Structure individually broadcasts channel, needs video server, storage, control machine, video and audio professional equipment and cable
Deng, input it is larger.It is broadcast if strange land is standby, it is also necessary to rent the supports such as computer room.The task in strange land is also cumbersome, from personnel
To equipment management, all there is difficult point.
Invention content
The technical problem to be solved in the present invention is, proposes cloud broadcast system, mixing broadcast system and cloud broadcasting method, profit
With cloud, the broadcast of broadcast TV program is realized, to reduce the input of TV and Radio Service, and improve working efficiency.
In order to solve the above technical problems, according to an aspect of the present invention, providing a kind of cloud broadcast system, wherein including：This
Broadcast control device, the broadcast of push and program for controlling programme and program material in ground；Material server, with described
Ground broadcasts control device connection, for providing program material to be broadcasted according to the local request for broadcasting control device；Cloud
Server is connected with the local broadcast control device and the material server, receives the programme and program element of push
Material, and designated position will be sent to after program material processing.
Preferably, the cloud broadcast system further includes local SDI decoder modules and local signal switching device, wherein this
Ground SDI decoder modules are used to the program material that the Cloud Server is sent being converted into sdi signal.
Preferably, in the cloud broadcast system, the local control device that broadcasts includes programme pushing module, is used for
Programme is pushed to the Cloud Server；The material server includes program material pushing module, is controlled with local broadcast
Device processed pushes program material according to the local instruction for broadcasting control device to the Cloud Server.
Preferably, in the cloud broadcast system, the local control device that broadcasts includes data-pushing module, by program
Program material that is single and being obtained from the material server is pushed to the Cloud Server.
Preferably, in the cloud broadcast system, the local control device that broadcasts includes transcoding module, and being used for will be from institute
It states the program material obtained in material server and carries out format conversion, transformed program material is sent to the data-pushing
Module.
Preferably, in the cloud broadcast system, the cloud server includes:Material receiving module, for receiving
State the local programme and program material for broadcasting control device push；And data processing module, for program element that will be to be broadcasted
Material is processed into TS streams and is sent to designated position.
Preferably, in the cloud broadcast system, the data processing module includes that transcoding module and cloud broadcast module, institute
It states transcoding module to convert the format of the program material, the cloud broadcasts the program element after module will carry out format conversion
Material is processed into TS stream outputs.
According to the second aspect of the invention, a kind of mixing broadcast system is provided, including main broadcaster's system, standby broadcast system, pad are broadcast
System and local signal switching device, wherein any cloud broadcast system is as main broadcaster's system, standby broadcast system in above-mentioned first aspect
With pad at least one of broadcast system, the local signal switching device selection main broadcaster system, standby broadcast system and pad broadcast system
One of sdi signal is used as broadcasting signal.
Preferably, the mixing broadcast system further includes emergency system, the local signal switching device selection main broadcaster system
System, pads one of broadcast system and the sdi signal of emergency system as broadcasting signal at standby broadcast system.
According to the third aspect of the invention we, a kind of cloud broadcasting method is provided, wherein by programme and program material from local
It is pushed to Cloud Server；The program material received is processed into TS streams by the cloud server；The TS streams are sent to finger
Positioning is set.
Preferably, in the broadcasting method, by the program material from being locally pushed to before Cloud Server, at this
Ground broadcasts in control device and carries out format conversion to the program material, and being converted to software from server proprietary formats can decode
Format.
Preferably, in the broadcasting method, the program material received is processed into TS and flows it by the cloud server
Before, it examines whether the format of the program material received meets the requirements, if undesirable, carries out format conversion.
Preferably, in the broadcasting method, the designated position is specified IP address.
Preferably, in the broadcasting method, the designated position is local, after the TS streams are sent to local,
The TS streams are decoded as sdi signal.
The present invention builds broadcast system using public cloud (or private clound), which can go out as independent main broadcaster is
System can also be used as standby broadcast system or shim system, and the IPTV broadcast systems for being also used as TV station are used alone.
The present invention the opposite existing system of construction cost, construction period, operation maintenance, upgrading, safety etc. have compared with
It is big to improve.And for standby broadcast system, facilitates and realize that isomery broadcasts, strange land is broadcasted.It is very low to the requirement of operating personnel position,
Substantially the computer room for having network condition and necessary video equipment can be completed.
Description of the drawings
By referring to the drawings to the description of the embodiment of the present invention, above-mentioned and other purposes of the invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 is the active and standby broadcast system schematic diagram of existing TV station；
Fig. 2 is the schematic block diagram according to the cloud broadcast system of first embodiment of the invention；
Fig. 3 is the schematic block diagram according to the cloud broadcast system of second embodiment of the invention；
Fig. 4 is the schematic block diagram according to the example of the cloud broadcast system of first embodiment of the invention；
Fig. 5 is the schematic block diagram of the example of the Cloud Server used in the cloud broadcast system of the present invention；
Fig. 6 is the flow chart according to the cloud broadcasting method of the present invention；
Fig. 7 is the schematic block diagram according to the mixing broadcast system of the present invention.
Specific implementation mode
Hereinafter reference will be made to the drawings is more fully described various embodiments of the present invention.In various figures, identical element
It is indicated using same or similar reference numeral.For the sake of clarity, the various pieces in attached drawing are not necessarily to scale.
As shown in Fig. 2, for according to the schematic block diagram of the cloud broadcast system of first embodiment of the invention.It is provided by the invention
Cloud broadcast system includes local broadcast control device 10, material server 20 and Cloud Server 30.Local broadcast controls dress
Set 10 and material server 20 be located in TV station, the two is connected by local network.Preferably, material server 20 can also
Positioned at high in the clouds.Cloud Server 30 is a certain public cloud or private clound, such as Ali's cloud.The local control device 10 that broadcasts takes with material
Business device 20 passes through network connection with Cloud Server 30 respectively.In general, in order to ensure that program broadcasts safe, unimpeded, net can be passed through
Network private line access.The local control device 10 that broadcasts is described for controlling programme and the push of program material and the broadcast of program
Material server 20 pushes program material to be broadcasted to Cloud Server 30 for providing.
Cloud broadcast system according to a first embodiment of the present invention as IPTV broadcast systems, it is local broadcast control device 10 to
The broadcast items list pushed in Cloud Server 30 is IPTV broadcast items lists, and material is IPTV broadcast materials.Cloud Server 30
Each program material is packaged according to the sequence of programme and generates TS streams, and sequence is pushed to specified IP address, that is, completes to broadcast
Work.
As shown in figure 3, for according to the schematic block diagram of the cloud broadcast system of second embodiment of the invention.With it is real according to first
The cloud broadcast system for applying example is identical, and cloud broadcast system according to second embodiment includes local broadcast control device 10, material clothes
Business device 20 and Cloud Server 30.The difference of cloud broadcast system according to second embodiment is only described below.The cloud broadcasts system
System further includes local SDI decoder modules 40.
Local SDI decoder modules 40 in the present invention can be arranged in TV station, and can also be any one has broadcast
The computer room of ability.Therefore, the present invention can be broadcast simultaneously realizing that strange land is standby, do not increased more management and equipment, solved
While existing demand, the drawbacks of also avoiding the prior art.
Cloud broadcast system according to a second embodiment of the present invention is as cable television broadcast system.Local SDI decoder modules
40 with Cloud Server 30 by network connection, receive the TS streams that Cloud Server 30 is sent, the TS streams be decoded into SDI letters
Number, a brocasting source as program.
Fig. 4 is the schematic block diagram according to the example of the cloud broadcast system of first embodiment of the invention.The local broadcast
Control device 10 includes programme pushing module 11 and local Broadcast Control module 12.The programme pushing module 11 is according to described
The instruction of ground Broadcast Control module 12 pushes programme, the process that the local Broadcast Control module 12 is broadcasted to the Cloud Server 30
Control, including programme is obtained, control the push of programme；It is communicated with material server 20, controls the push of program material；With
Cloud Server 30 carries out real-time Communication for Power, various control information is exchanged with Cloud Server 30, and it is various to obtain to monitor broadcast process
Status information etc..
Material server 20 includes server control module 21, program material pushing module 23 and materials database 22.Institute
It states server control module 21 to be communicated with the local control device 10 that broadcasts, be sent according to the local Broadcast Control module 12
Instruction, transfer corresponding program material from materials database 22, control program material pushing module 23 is to Cloud Server 30
Push program material.
The Cloud Server 30 includes:Cloud Broadcast Control module 31, cloud material receiving module 32, cloud material memory module 33 turn
Code module 34 and cloud broadcast module 35.Wherein, the cloud Broadcast Control module 31 takes with the local broadcast control device 10 and material
Be engaged in 20 real-time Communication for Power of device, receive the programme that the programme pushing module 11 push comes, and with local Broadcast Control module 12
Real-time Communication for Power exchanges and broadcasts control information etc..Cloud material receiving module 32 receives program material pushing module 23 and pushes the number of coming
According to, and store into cloud material memory module 33.Cloud Broadcast Control module 31 is according to programme and the local Broadcast Control module 12 received
The instruction of transmission, the determination program to be broadcasted, the program material that will be broadcasted are sent to transcoding module 34, by program material from its
His format, such as original server proprietary formats MXF, GXF etc., be converted into can broadcasting with high in the clouds proprietary formats (such as MPEG2,
H.264 etc.).Then, the cloud broadcasts module 35 and the program material after transcoding is packaged into TS according to programme sequence
(Transport Steams, abbreviation TS) flows, and is output to designated position, such as specified channel IP address or specified reception dress
It sets.
In the present embodiment, it is provided with program material pushing module 23 in material server 20, for program material is straight
It connects and is pushed in Cloud Server, to reduce the local workload for broadcasting control device 10.In this embodiment, material service
The content of device 20 can be via wide-area network access.
In an alternative embodiment, can data-pushing module be set locally broadcasting control device 10, for pushing away
Programme and program material are sent, without program material pushing module 23 is arranged in material server.It is broadcast due to local
Go out control device 10 to connect in the home network with material server 20, then via the local control device 10 that broadcasts to wide area network
Programme and program material are pushed, therefore the content security of material server 20 can be improved.
In another alternative embodiment, the local control device 10 that broadcasts may include transcoding module, and being used for will be from institute
It states the program material obtained in materials database and carries out format conversion, transformed program material is sent to the data-pushing
Module, without transcoding module 34 is arranged in Cloud Server 30.It is local to broadcast control dress in the alternative embodiment
It sets 10 to carry out program material to be sent to Cloud Server 30 after format conversion, at the data so as to mitigate Cloud Server 30
Load and delay are managed, the requirement of real-time of broadcast is met.
Fig. 5 is the schematic block diagram of the example of the Cloud Server 30 used in the cloud broadcast system of the present invention.Beyond the clouds,
Cloud Server 30 can be used for broadcasting a channel, can be used for broadcasting multiple channels.As shown in figure 5, multiple for broadcasting
The Cloud Server 30 of channel includes multiple transcoding module 34a-34c, and multiple clouds broadcast module 35a-35c.Each transcoding mould
Then the program material of a channel of block pair is broadcasted after module carries out packing processing by corresponding cloud and is transferred out into format conversion
It goes.Thus, TV station can use high in the clouds as multiple channels it is standby broadcast or pad broadcast.
Based on above-mentioned broadcast system, the flow of cloud broadcasting method provided by the invention is as shown in Figure 6：
In step S01, by programme and program material from local through network push to Cloud Server.It should be noted that
For broadcast program material and programme can with timesharing, point be pushed to Cloud Server.The flexible of this system is increased with this
Property.
In step S02, the cloud server programme and material, and the programme and element received is preserved beyond the clouds
Material.
In step S03, Cloud Server examines whether the format of the material meets the requirements.If the format of the material is MXF,
The format that the servers such as GXF proprietary formats or other non-high in the clouds are broadcasted, such as MPEG2, H.264 (herein only for example, high in the clouds
The format of broadcast can be depending on concrete condition), then follow the steps S04.If not, thening follow the steps S05.
In step S04, format conversion is carried out, by the format conversion of the material at the format for meeting high in the clouds broadcast, such as
MPEG2, H.264.In the present embodiment, transcoding module is deployed in Cloud Server, the powerful calculating ability of cloud can be utilized,
It is more efficient.Then step S05 is executed.
In step S05, the data after transcoding are packaged into TS according to programme sequence and flows and is output to designated position.
Fig. 7 is the schematic block diagram according to the mixing broadcast system of the present invention.Within the system, four sets are shared and broadcasts system
System, main broadcaster's system 100, standby broadcast system 200 pad broadcast system 300 and emergency system 400.The output signal of this four sets of broadcast systems
It is all connected to signal switching apparatus 50.In the present system, system provided by the invention is as pad broadcast system 300, naturally it is also possible to
As standby broadcast system or even main broadcaster's system.Due to main broadcaster's system, standby broadcast system and the traditional broadcast system of emergency system application, institute
With details are not described herein.
As described above according to the embodiment of the present invention, there is no all details of detailed descriptionthe for these embodiments, also not
Limit the specific embodiment that the invention is only described.Obviously, as described above, can make many modifications and variations.This explanation
These embodiments are chosen and specifically described to book, is in order to preferably explain the principle of the present invention and practical application, belonging to making
Technical field technical staff can utilize modification of the invention and on the basis of the present invention to use well.The protection model of the present invention
The range that the claims in the present invention are defined should be subject to by enclosing.
Claims (10)
1. a kind of cloud broadcast system, wherein including：
It is local to broadcast control device, the broadcast of push and program for controlling programme and program material；
Material server is connect with the local control device that broadcasts, for according to the local request for broadcasting control device
Program material to be broadcasted is provided；
Cloud Server, with it is described it is local broadcast control device and the material server is connected, receive push programme and
Program material, and designated position, the local broadcast control device and cloud clothes will be sent to after program material processing
Business device exchanges various control information, and monitors broadcast process to obtain various status informations.
2. cloud broadcast system according to claim 1, wherein further include local SDI decoder modules, wherein local SDI solutions
Code module is used to the program material that the Cloud Server is sent being converted into sdi signal.
3. cloud broadcast system according to claim 1 or 2, wherein the local control device that broadcasts includes that programme pushes away
Module is sent, for pushing programme to the Cloud Server；The material server includes program material pushing module, and described
It is local to broadcast control device connection, according to the local instruction for broadcasting control device, to Cloud Server push program element
Material；Or
The local control device that broadcasts includes data-pushing module, by programme and the section obtained from the material server
Mesh material is pushed to the Cloud Server；Wherein, the local control device that broadcasts includes transcoding module, and being used for will be from the element
The program material obtained in material server carries out format conversion, and transformed program material is sent to the data-pushing mould
Block.
4. cloud broadcast system according to claim 1, wherein the Cloud Server includes:
Material receiving module, for receiving the local programme and program material for broadcasting control device push；With
Data processing module is sent to designated position for program material to be broadcasted to be processed into TS streams.
5. cloud broadcast system according to claim 4, wherein the data processing module includes that transcoding module and cloud broadcast
Module, the transcoding module convert the format of the program material, and the cloud broadcasts module will be after progress format conversion
Program material be processed into TS stream output.
6. a kind of mixing broadcast system, including main broadcaster's system, standby broadcast system, pad broadcast system, local signal switching device and emergent
System, wherein cloud broadcast system according to any one of claim 1 to 5 is broadcast as main broadcaster's system, standby broadcast system and pad
At least one of system, the local signal switching device selection main broadcaster system, standby broadcast system and the sdi signal for padding broadcast system
One of be used as broadcasting signal
The local signal switching device selection main broadcaster system, standby broadcast system, one of the sdi signal for padding broadcast system and emergency system
As broadcasting signal.
7. a kind of cloud broadcasting method, wherein
Local control device control programme and the program material of broadcasting is from being locally pushed Cloud Server, wherein the program element
Material is provided by material server, and the material server provides section to be broadcasted according to the local request for broadcasting control device
Mesh material；
The program material received is processed into TS streams by the Cloud Server, and the TS streams are sent to designated position,
The cloud broadcasting method further includes that local broadcast control device and the Cloud Server exchange various control information, and monitor
Broadcast process obtains various status informations.
8. cloud broadcasting method according to claim 7, wherein by the program material from being locally pushed Cloud Server
Before, format conversion is carried out to the program material in locally broadcasting control device.
9. cloud broadcasting method according to claim 7, wherein the program material received is processed by the Cloud Server
It before TS streams, examines whether the format of the program material received accords with requirement, if undesirable, turns into row format
It changes.
10. cloud broadcasting method according to claim 7, wherein the designated position is specified IP address；Or
The designated position is that the TS streams are decoded as SDI by specified reception device after the TS streams are sent to local
Signal.
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| CN105306965B (en) * | 2015-10-27 | 2019-03-08 | 央视国际网络无锡有限公司 | The method and apparatus for supporting the splicing of different-format media file |
| CN109246333A (en) * | 2018-09-19 | 2019-01-18 | 北京正奇联讯科技有限公司 | The control method and device of video playing |
| CN110958403B (en) * | 2019-12-18 | 2022-05-10 | 南京广播电视集团(南京广播电视台) | Remote safe backup broadcasting system constructed by utilizing 5G technology |
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| CN102710967A (en) * | 2012-05-22 | 2012-10-03 | 袁华安 | Cloud television system and method |
| CN102833468A (en) * | 2012-09-10 | 2012-12-19 | 中央电视台 | Broadcasting PGM (Probabilistic Graphical Model) master-slave output one-click emergency system and method |
| CN103327375A (en) * | 2013-06-03 | 2013-09-25 | 四川长虹电器股份有限公司 | Method and system for communication between mobile device terminal and digital television terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7721318B2 (en) * | 2005-04-15 | 2010-05-18 | Scientific-Atlanta, Inc. | Uplink signaling for global decoder control |
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| CN102710967A (en) * | 2012-05-22 | 2012-10-03 | 袁华安 | Cloud television system and method |
| CN102833468A (en) * | 2012-09-10 | 2012-12-19 | 中央电视台 | Broadcasting PGM (Probabilistic Graphical Model) master-slave output one-click emergency system and method |
| CN103327375A (en) * | 2013-06-03 | 2013-09-25 | 四川长虹电器股份有限公司 | Method and system for communication between mobile device terminal and digital television terminal |
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