CN102932672B - Emergency broadcast message adaptation insertion system based on digital TV network - Google Patents
Emergency broadcast message adaptation insertion system based on digital TV network Download PDFInfo
- Publication number
- CN102932672B CN102932672B CN201110231089.9A CN201110231089A CN102932672B CN 102932672 B CN102932672 B CN 102932672B CN 201110231089 A CN201110231089 A CN 201110231089A CN 102932672 B CN102932672 B CN 102932672B
- Authority
- CN
- China
- Prior art keywords
- broadcast
- urgent
- program
- urgent broadcast
- digital television
- 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.)
- Expired - Fee Related
Links
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of emergency broadcast message adaptation insertion system based on digital TV network, including：Adaptation sealed in unit, rank by predetermined policy for the emergency broadcast message to being adapted to digital television transfer, and emergency broadcast message is extracted and after adaptation is packaged into urgent broadcast table, urgent broadcast captions and urgent broadcast program, exported to operation front end multiplexer respectively, broadcast insertion equipment and switch；Operation front end multiplexer, for being inserted in current digital television transmission signal in the form of Program Specific Information table；Insertion equipment is broadcasted, for urgent broadcast captions are superimposed with the video image of current digital television program transmission signal；Switch, for when there is urgent broadcast program, being switched to for playing the digital television program transmission signal all the way of urgent broadcast program；The present invention can quickly, solves the problems, such as effectively and on the premise of not affecting existing digital television program to broadcast the encapsulation of emergency broadcast message adaptation and broadcast insertion.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of emergency broadcast message adaptation based on digital TV network
Insertion system.
Background technology
When country experience Emergent Public Events are caused or are likely to result in great casualties, property loss, life
State environmental disruption and serious social danger, when endangering public security, the donor in government or area can pass through urgent broadcast system
Unite and circulate a notice of emergency and counter-measure further to protect the security of the lives and property of the public to the public.
Mouthpiece of the radio and television as Party and government, is the main channel of national release right prestige breath, is that country's burst is public
Event society pre-alarming system important component part, be national contingency management service be radio and television obligation one can't decline.Party
Central authorities, State Council pay much attention to important function of the radio and television in accident is emergent, it is desirable to set up country as early as possible emergent wide
Broadcast system.
But, urgent broadcast can be disappeared by existing broadcast television transmissions network, only CMMB (CMMB)
Breath adaptation is packaged and inserted in the middle of broadcasting signal, there is no good emergency broadcast message adaptation at present for digital TV network
Encapsulation and broadcast insertion technical scheme.
The content of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of emergency broadcast message adaptation based on digital TV network is inserted
Enter system, to solve in prior art for digital TV network there is no at present the encapsulation of good emergency broadcast message adaptation and
Broadcast the problem of insertion technical scheme.
The purpose of the present invention is mainly achieved through the following technical solutions：
The invention provides a kind of emergency broadcast message adaptation insertion system based on digital TV network, for each frequency
Point, pre-setting is used for the digital television program transmission signal of normal broadcast items all the way and is used for all the way broadcasting urgent broadcast
The digital television program transmission signal of program, the system include：
Adaptation sealed in unit, ranks by predetermined policy for the emergency broadcast message to being adapted to digital television transfer,
And emergency broadcast message is extracted and adaptation is packaged into urgent broadcast table, urgent broadcast captions and urgent broadcast program
Afterwards, export respectively to operation front end multiplexer, broadcast insertion equipment and switch；
Operation front end multiplexer, for being urgent broadcast program configuration Program Association Table and Program Map Table in advance, and
When receiving urgent broadcast table, it is inserted in current digital television transmission signal in the form of Program Specific Information table；
Insertion equipment is broadcasted, for urgent broadcast being superimposed with the video image of current digital television program transmission signal
Captions；
Switch, it is electric for playing a railway digital of urgent broadcast program for when there is urgent broadcast program, being switched to
Depending on program transmission signal.
Further, the switch is additionally operable to, and after the transmission of urgent broadcast program terminates, is switched to for normal broadcast
The digital television program transmission signal all the way of program.
Further, the adaptation sealed in unit is specifically included：
Cache module, for entering by predetermined policy to all emergency broadcast messages that different distribution platform receiving devices are sent
Row is queued up and is cached；
Parsing package module, is packaged into urgent broadcast table, tight for carrying out parsing extraction and adaptation to emergency broadcast message
Anxious broadcast subtitle and urgent broadcast program；
Sending module, gives operation front end multiplexer for the urgent broadcast table after encapsulation is exported, by urgent broadcast captions
Export to insertion equipment is broadcasted, urgent broadcast program is exported to switch；
Control module, for sending switching command, control switch will be switched to for broadcasting the one of urgent broadcast program
Railway digital TV transmission signal.
Further, the parsing package module is specifically for what urgent broadcast distribution platform was sent is all urgent wide
Broadcast message to be parsed, therefrom extract the emergency broadcast message of suitable digital television transfer, adaptation is packaged into and is adapted to numeral electricity
Depending on the urgent broadcast table of program transmission signal；Suitable screen is extracted from the emergency broadcast message of suitable digital television transfer to show
The caption information for showing, adaptation are packaged into urgent broadcast captions；Extract from the emergency broadcast message of suitable digital television transfer
Urgent broadcast program, adaptation are packaged into the urgent broadcast program of suitable digital television program transmission signal.
Further, the adaptation sealed in unit has been pre-configured with the corresponding device code of all frequencies, the then transmission
Module is specifically for judging to judge frequency that emergency broadcast message need to send according to the device code carried in emergency broadcast message
Point, sends the urgent broadcast table after encapsulation to the corresponding operation front end multiplexer of frequency that need to be sent, to the frequency for needing to send
Corresponding broadcast insertion equipment sends urgent broadcast captions, sends urgent broadcast section to the corresponding switch of frequency for needing to send
Mesh.
Further, the switch is additionally operable to, and the work state information of this equipment is fed back to distribution platform reception and is set
It is standby.
Further, the broadcast insertion equipment is additionally operable to, and the work state information of this equipment is fed back to distribution platform
Receiving device.
The present invention has the beneficial effect that：
The present invention is inserted into existing digital television program and passes after the emergency broadcast message for needing transmission is carried out adaptation encapsulation
In defeated signal, can quickly, solve effectively and on the premise of existing digital television program safe broadcast is not affected urgent wide
Broadcast the adaptation encapsulation of message and broadcast insertion problem.
Other features and advantages of the present invention will be illustrated in the following description, also, the partial change from description
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
In book, claims and accompanying drawing, specifically noted structure is realizing and obtain.
Description of the drawings
Structural representations of the Fig. 1 for system described in the embodiment of the present invention；
During Fig. 2 is system described in the embodiment of the present invention, the structural representation of sealed in unit is adapted to；
During Fig. 3 is the embodiment of the present invention, the structural representation of urgent broadcast table；
During Fig. 4 is the embodiment of the present invention, the relation of PSI and MPEG-2 streams.
Specific embodiment
Below in conjunction with the accompanying drawings specifically describing the preferred embodiments of the present invention, wherein, accompanying drawing constitutes the application part, and
It is used for together with embodiments of the present invention explaining the principle of the present invention.For purpose of clarity and simplification, when which may make the present invention
Theme it is smudgy when, illustrating in detail for known function and structure in device described herein will be omitted.
As shown in figure 1, Fig. 1 is the structural representation of system described in the embodiment of the present invention, for each frequency, pre-set
Pass as normal digital television program transmission signal TS and all the way as the digital television program of urgent broadcast program all the way
Defeated signal TS '.
The system includes an adaptation sealed in unit, additionally, being directed to each frequency, at least includes：One is broadcasted insertion
Equipment, an ASI switch and an operation front end multiplexer, wherein,
(1) sealed in unit is adapted to, is adapted to sealed in unit, pressed for the emergency broadcast message to being adapted to digital television transfer
Predetermined policy is ranked, and emergency broadcast message is extracted and adaptation is packaged into urgent broadcast table, urgent broadcast captions
And after urgent broadcast program, exported to operation front end multiplexer respectively, broadcast insertion equipment and switch；
As shown in Fig. 2 Fig. 2 is the structural representation for being adapted to sealed in unit, adaptation sealed in unit can specifically include：Caching
Module, parsing package module, sending module and control module, wherein,
Cache module, for receiving emergency broadcast message, including higher level, this level and subordinate's urgent broadcast distribution platform etc. are no
The parameters such as the emergency broadcast message in source, and the type and rank according to informed source and message itself together press predetermined policy pair
Message is ranked caching；
Parsing package module, is packaged into urgent broadcast table, tight for carrying out parsing extraction and adaptation to emergency broadcast message
Anxious broadcast subtitle and urgent broadcast program；Concrete parsing encapsulation process includes：Parsing package module issues flat to urgent broadcast
All emergency broadcast messages that platform sends are parsed, and therefrom extract the emergency broadcast message of suitable digital television transfer, are fitted
With the urgent broadcast table for being packaged into suitable digital television program transmission signal, the structure of urgent broadcast table is as shown in Figure 3；From be adapted to
The caption information of suitable screen display is extracted in the emergency broadcast message of digital television transfer, adaptation is packaged into urgent broadcast word
Curtain；Urgent broadcast program is extracted from the emergency broadcast message of suitable digital television transfer, adaptation is packaged into and is adapted to numeral electricity
Depending on the urgent broadcast program of program transmission signal.
Sending module, gives operation front end multiplexer for the urgent broadcast table after encapsulation is exported, by urgent broadcast captions
Export to insertion equipment is broadcasted, urgent broadcast program is exported to switch；It is exactly specifically that adaptation sealed in unit is matched somebody with somebody in advance
The corresponding device code of all frequencies is put, sending module first judges to judge according to the device code carried in emergency broadcast message
The frequency that emergency broadcast message need to send, then sends urgent broadcast to the corresponding operation front end multiplexer of frequency that need to be sent
Table, sends urgent broadcast captions to the corresponding insertion equipment that broadcasts of the frequency for needing to send, corresponding to the frequency for needing to send
ASI switch sends urgent broadcast program.
Control module, sends switching command during for having emergency broadcast message and urgent broadcast program, control ASI switch
It is switched to digital television program transmission signal for broadcasting urgent broadcast program all the way.
(2) front end multiplexer is runed, for PAT (programming association) and PMT (programs being configured for urgent broadcast program in advance
Mapping table), and when urgent broadcast table is received, current digital television transmission is inserted in the form of PSI (Program Specific Information)
In signal；It is exactly specifically to run relation of the front end multiplexer according to PSI (Program Specific Information) each table, to PAT (sections
Mesh contingency table) and PMT (Program Map Table) be analyzed, parse PAT and obtain needing replacing the PID Packet Identifier of program, then parse
Pmt table obtains needing the PID Packet Identifier for replacing video and audio frequency in program, and the video and audio stream of the program are replaced with
The video and audio stream of urgent broadcast program.
Wherein, wherein, the relation that PSI and MPEG-2 (digital television program transmission) flow as shown in figure 4, PSI data provide
The information for automatically configuring is enabled a receiver to, for the different program streams in multiplex stream are demultiplexed and decoded.PSI believes
Breath is made up of four type tables, is transmitted by section per class table：
A) PAT (Program Association Table)
For multiplexing per business all the way, the position (PID Packet Identifiers of transport stream data packet of the PAT there is provided corresponding PMT
The value of PID), while giving the position of NIT (network information table)；
CAT (CAT Conditional Access Table)
CAT there is provided in multiplex stream conditional reception system for information about.These information belong to exclusive data, and rely on
In condition receiving system.When there is EMM, it further comprises the position of EMM streams；
C) PMT (Program Map Table)
PMT is identified and is indicated position of the composition per the stream of road business, and per PCR (program clock reference) word of road business
The position of section；
D) NIT network information tables
Put forward the information about physical network.
PAT, CAT, PMT in PSI only provide it be located multiplex stream (existing multiplex stream) information, content by
Moving Picture Experts Group-2 specifies that NIT tables are private tables, but the transmission stream packets pid value with this table illustrates that in pat table it still needs to
Meet the segmental structure of Moving Picture Experts Group-2 definition.
It should be noted that because being replaced before multiplexer, it is therefore desirable to which multiplexer is capable of identify that urgent broadcast section
Purpose PID, so the pat table of multiplexer and pmt table configuration needs make corresponding modification, pat table to be included urgent broadcast program
PID, pmt table to be included the PID of the audio stream of urgent broadcast program correspondence video flowing, so urgent broadcast program could be passed through
Multiplexer is inserted in digital television broadcasting transport stream.
(3) insertion equipment is broadcasted, it is urgent for being superimposed with the video image of current digital television program transmission signal
Broadcast subtitle；It is exactly specifically, for the urgent broadcast captions that adaptation sealed in unit sends, including caption content and insertion are opened
Time beginning and end time, broadcast insertion equipment and be automatically inserted into, there are urgent broadcast captions to be just overlapped.
Broadcast insertion equipment to also need to for the work state information of this equipment to feed back to distribution platform receiving device, with convenient
Distribution platform receiving device understands the current state for broadcasting insertion equipment.
(4) ASI (Asynchronous Serial Interface, Asynchronous Serial Interface) switch, as needed,
For in all the way and electric for broadcasting the numeral of urgent broadcast program of the digital television program transmission signal of normal broadcast items
Depending on program transmission signal all the way between switch over, that is, having emergency broadcast message and urgent broadcast program constantly, be switched to
For broadcast urgent broadcast program digital television program transmission signal all the way；After the transmission of urgent broadcast captions terminates, cut
Change to the digital television program transmission signal of normal broadcast items all the way.
ASI switch also needs to for the work state information of this equipment to feed back to distribution platform receiving device, is sent out with facilitating
Cloth platform receiving device understands the current state for broadcasting insertion equipment.
The switching of ASI switch support program, manual switching and automatic switchover, when program switch or manual switching after detect
Target input mouth no signal should automatically switch and return to signal all the way.
In sum, embodiments provide a kind of emergency broadcast message adaptation insertion based on digital TV network
System, the present invention combine existing digital television front-end system feature, it is not necessary to the upgrading multiplexing of digital TV network operator
Device can complete the adaptation encapsulation of emergency broadcast message and broadcast insertion.The present invention solves emergency broadcast message in multiple frequencies
The problem of transmission.The present invention has taken into full account the impact to digital Safety Of TV Broadcast on conceptual design, ensure that with not
The adaptation encapsulation of emergency broadcast message is completed premised on the safe broadcast for affecting existing digital television program and insertion is broadcasted.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
Should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (6)
1. a kind of emergency broadcast message based on digital TV network is adapted to insertion system, it is characterised in that for each frequency,
Pre-setting is used for the digital television program transmission signal of normal broadcast items all the way and is used for all the way broadcasting urgent broadcast section
Purpose digital television program transmission signal, the system include：
Adaptation sealed in unit, ranks by predetermined policy for the emergency broadcast message to being adapted to digital television transfer, and right
After emergency broadcast message is extracted and adaptation is packaged into urgent broadcast table, urgent broadcast captions and urgent broadcast program, point
Do not export to operation front end multiplexer, broadcast insertion equipment and switch；
Operation front end multiplexer, for configuring Program Association Table and Program Map Table table for urgent broadcast program in advance, and is connecing
When receiving urgent broadcast table, Contemporary Digital electricity is inserted in the form of Program Specific Information according to Program Association Table and Program Map Table
Depending in transmission signal；
Insertion equipment is broadcasted, for urgent broadcast word is superimposed with the video image of current digital television program transmission signal
Curtain；
Switch, for when there is urgent broadcast program, being switched to for playing the DTV section all the way of urgent broadcast program
Mesh transmission signal；
The adaptation sealed in unit is specifically included：
Cache module, for arranging by predetermined policy to all emergency broadcast messages that different distribution platform receiving devices are sent
Team caches；
Parsing package module, is packaged into urgent broadcast table, urgent wide for carrying out parsing extraction and adaptation to emergency broadcast message
Broadcast captions and urgent broadcast program；
Sending module, gives operation front end multiplexer for the urgent broadcast table after encapsulation is exported, urgent broadcast captions is exported
To insertion equipment is broadcasted, urgent broadcast program is exported to switch；
Control module, for sending switching command, controls switch and will be switched to for broadcasting a way of urgent broadcast program
Word TV transmission signal；
The adaptation sealed in unit has been pre-configured with the corresponding device code of all frequencies, and sending module first disappears according to urgent broadcast
The device code carried in breath judges the frequency that emergency broadcast message need to send, then to before the corresponding operation of frequency that need to be sent
End multiplexer sends urgent broadcast table, sends urgent broadcast captions to the corresponding insertion equipment that broadcasts of the frequency for needing to send, to
The corresponding ASI switch of frequency for sending is needed to send urgent broadcast program.
2. system according to claim 1, it is characterised in that the switch is additionally operable to, sends in urgent broadcast program
After end, the digital television program transmission signal all the way for normal broadcast items is switched to.
3. system according to claim 1 and 2, it is characterised in that the parsing package module is specifically for urgent wide
Broadcast all emergency broadcast messages that distribution platform sends to be parsed, therefrom extract the urgent broadcast of suitable digital television transfer
Message, adaptation are packaged into the urgent broadcast table of suitable digital television program transmission signal；From the urgent of suitable digital television transfer
The caption information of suitable screen display is extracted in broadcast, adaptation is packaged into urgent broadcast captions；From suitable DTV
Urgent broadcast program is extracted in the emergency broadcast message of transmission, adaptation is packaged into the tight of suitable digital television program transmission signal
Anxious broadcast program.
4. system according to claim 1 and 2, it is characterised in that the adaptation sealed in unit has been pre-configured with all frequencies
The corresponding device code of point, then the sending module is specifically for judging to be sentenced according to the device code carried in emergency broadcast message
Break the frequency for that emergency broadcast message need to send, and sends tight after encapsulation to the corresponding operation front end multiplexer of frequency that need to be sent
Anxious broadcast table, sends urgent broadcast captions to the corresponding insertion equipment that broadcasts of the frequency for needing to send, to the frequency for needing to send
Corresponding switch sends urgent broadcast program.
5. system according to claim 1 and 2, it is characterised in that the switch is additionally operable to, by the work shape of this equipment
State feedback of the information is to distribution platform receiving device.
6. system according to claim 1, it is characterised in that the broadcast insertion equipment is additionally operable to, by the work of this equipment
Make status information feedback to distribution platform receiving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110231089.9A CN102932672B (en) | 2011-08-12 | 2011-08-12 | Emergency broadcast message adaptation insertion system based on digital TV network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110231089.9A CN102932672B (en) | 2011-08-12 | 2011-08-12 | Emergency broadcast message adaptation insertion system based on digital TV network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102932672A CN102932672A (en) | 2013-02-13 |
| CN102932672B true CN102932672B (en) | 2017-03-29 |
Family
ID=47647356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110231089.9A Expired - Fee Related CN102932672B (en) | 2011-08-12 | 2011-08-12 | Emergency broadcast message adaptation insertion system based on digital TV network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102932672B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105208405A (en) * | 2014-06-30 | 2015-12-30 | 惠州市伟乐科技股份有限公司 | Emergency video broadcasting device and method |
| CN105391507A (en) * | 2015-10-12 | 2016-03-09 | 成都九十度工业产品设计有限公司 | Emergency broadcasting text information data analyzing method and system |
| CN106612463A (en) * | 2015-10-27 | 2017-05-03 | 中兴通讯股份有限公司 | Barrage processing methods and system, and terminal |
| CN105721892B (en) * | 2016-02-04 | 2019-01-15 | 北京广慧科技有限公司 | A kind of the digital TV contents monitoring method and system of ground digital television single frequency network |
| CN107959807A (en) * | 2017-12-29 | 2018-04-24 | 重庆洪深现代视声技术有限公司 | Broadcast safe broadcasts TS stream intelligent switching systems |
| CN108965900A (en) * | 2018-06-22 | 2018-12-07 | 中央电视台 | New media live broadcasting method and device, storage medium |
| CN111669628B (en) * | 2020-05-19 | 2022-06-07 | 江苏银河数字技术有限公司 | Public information publishing system based on digital television technology |
| CN112333535A (en) * | 2020-10-28 | 2021-02-05 | 伟乐视讯科技股份有限公司 | Emergency broadcast padding scene switching method and system |
| CN114449317B (en) * | 2021-12-27 | 2023-06-30 | 福建新大陆通信科技股份有限公司 | Emergency broadcasting method for digital television |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1722801A (en) * | 2004-07-15 | 2006-01-18 | Lg电子株式会社 | Emergency alert message data structure, emergency alert message processing method and broadcast receiver |
| CN101188668A (en) * | 2006-11-22 | 2008-05-28 | Lg电子株式会社 | Method of transmitting broadcast signal, method of processing broadcast signal and apparatus for the same |
| CN101369855A (en) * | 2008-09-25 | 2009-02-18 | 中兴通讯股份有限公司 | Emergency broadcast transmission method and system |
| CN201328166Y (en) * | 2008-09-27 | 2009-10-14 | 福建三元达通讯股份有限公司 | Novel wireless media system |
| CN101567734A (en) * | 2008-04-21 | 2009-10-28 | 中兴通讯股份有限公司 | Message transmission device and method for emergent broadcast |
-
2011
- 2011-08-12 CN CN201110231089.9A patent/CN102932672B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1722801A (en) * | 2004-07-15 | 2006-01-18 | Lg电子株式会社 | Emergency alert message data structure, emergency alert message processing method and broadcast receiver |
| CN101188668A (en) * | 2006-11-22 | 2008-05-28 | Lg电子株式会社 | Method of transmitting broadcast signal, method of processing broadcast signal and apparatus for the same |
| CN101567734A (en) * | 2008-04-21 | 2009-10-28 | 中兴通讯股份有限公司 | Message transmission device and method for emergent broadcast |
| CN101369855A (en) * | 2008-09-25 | 2009-02-18 | 中兴通讯股份有限公司 | Emergency broadcast transmission method and system |
| CN201328166Y (en) * | 2008-09-27 | 2009-10-14 | 福建三元达通讯股份有限公司 | Novel wireless media system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102932672A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102932672B (en) | Emergency broadcast message adaptation insertion system based on digital TV network | |
| CA2828945C (en) | Transmitting device, transmitting method, receiving device, receiving method, program, and broadcasting system | |
| KR101108053B1 (en) | The method of managing Emergency Alert Channel for terrestrial broadcasting, the data structure for controlling the same, and the receiver for controlling the same | |
| CA2677024C (en) | System and method for terrestrial broadcast of emergency alerts | |
| KR101797497B1 (en) | Method and apparatus for processing non-real-time broadcast service and content transmitted by broadcast signal | |
| KR101227482B1 (en) | The method of managing Emergency Alert Message for terrestrial broadcasting, and the receiver for controlling the same | |
| CN105471533A (en) | Digital television emergency broadcast playing method and digital television terminal | |
| WO2008016213A1 (en) | Digital broadcasting system and method | |
| CN101262293B (en) | A transmission method and system for multi-language program prompt message | |
| CN102932674B (en) | The adaptive insertion system of emergency broadcast message based on digital TV network | |
| CN102547379A (en) | Emergency broadcast method, emergency broadcast device and emergency broadcast front-end of digital television | |
| EP1763957A1 (en) | Content managing module and apparatus comprising such content managing module as well as method for controlling interactive applications | |
| KR20150122130A (en) | Signal transmission and reception device and signal transmission and reception method | |
| EP2283654B1 (en) | System and devices for distributing content in a hierarchical manner | |
| WO2008016212A1 (en) | Digital broadcasting system and method | |
| KR102415961B1 (en) | System and method for transmitting of disaster information through all of channels of pay-tv service provider | |
| WO2008016211A1 (en) | Digital broadcasting system and method | |
| KR100846935B1 (en) | Bifs realtime controller for dmb broadcasting | |
| KR100868039B1 (en) | Method for controlling digital broadcasting signal | |
| KR100868351B1 (en) | Method for controlling digital broadcasting signal | |
| KR100868041B1 (en) | Method for controlling digital broadcasting signal | |
| KR100868040B1 (en) | Method for controlling digital broadcasting signal | |
| KR100900428B1 (en) | Digital broadcasting signal receiver and method thereof | |
| KR100896485B1 (en) | Digital broadcasting signal receiver and method thereof | |
| KR100900427B1 (en) | Digital broadcasting signal receiver and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20210812 |