CN1642279A - Data broadcasting method for digital television broadcasting - Google Patents
Data broadcasting method for digital television broadcasting Download PDFInfo
- Publication number
- CN1642279A CN1642279A CNA2004100002179A CN200410000217A CN1642279A CN 1642279 A CN1642279 A CN 1642279A CN A2004100002179 A CNA2004100002179 A CN A2004100002179A CN 200410000217 A CN200410000217 A CN 200410000217A CN 1642279 A CN1642279 A CN 1642279A
- Authority
- CN
- China
- Prior art keywords
- data
- write
- column
- digital television
- subclauses
- 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
Images
Landscapes
- Television Systems (AREA)
Abstract
The invention relates to a data playing method used in digital TV broadcast, including the steps: making data of various forms into entries and loading them in the database of a data broadcast system; constructing topics and connecting well combined data entries to their respective topics; according to data rotation playing standard, packing the topics connected; according to MPEG-2 standard, packing the above generated data into MPEG-2 code stream; playing data by a code stream playing card to make the data directly enter in a modulator or enter in the modulator through a multiplexer and then mix into a wired network.
Description
Technical field
The invention belongs to the digital television techniques field, particularly relate to a kind of data playing method that is used for digital television broadcasting.
Background technology
Along with the progressively popularization and the development of Digital Television, user's demand is gradually from simple reception electronic program guides, and the audio/video program of watching encrypted carries out the transition to and will obtain the more data content from front end.
In the prior art, data broadcasting becomes binary data stream according to user-defined format with the image, text and data tissue mostly, by broadcasting after the data of above data flow being gone into the DVB standard code according to the data pipe protocol encapsulation.Receiver receives that combination recovers binary data stream after the private data segmentation, according to the format analysis data of transmitting terminal agreement, finish the transmission of data.Can comprise the parameter that receives other data place private data segmentations that are associated in the data.Control the reception of other data that are associated by these parameters.
Because the obtaining etc. of the identifier of relations such as description level in receiving course, connection all is based upon on the proprietary protocol that transmitting terminal and receiver arrange, cause making a start and all need to be deep into the details of DVB agreement with receiving end, must add the analysis program of private data form at receiver, and combine with code stream demultiplexing control, therefore do not have versatility, and content is more single, mostly is the simple combination of literal picture.
Summary of the invention
The object of the present invention is to provide a kind of data playing method that is used for digital television broadcasting, in digital television broadcasting system, the data of multiple form are organized, then according to the data carousel agreement, data encapsulation is broadcasted, broadcasted general digital television system one/Level-2 column multi-format content according to standard.
For finishing the foregoing invention purpose, a kind of data playing method that is used for digital television broadcasting of the present invention comprises the steps:
A. transmitting terminal is written into the various formatted data clauses and subclauses that the user worked out in the database of Radio Data System;
B. transmitting terminal is connected to the data clauses and subclauses that combine under the column that the user constructs;
C. transmitting terminal encapsulates the column that connects according to the data carousel standard;
D. the transmitting terminal above data encapsulation that will generate according to Motion Picture Experts Group (MPEG-2) standard becomes Motion Picture Experts Group (MPEG-2) code stream;
E. transmitting terminal is by the code flow broadcast card played data, after making data directly enter modulator or entering modulator by multiplexer, is mixed into wired network.
The data of the various forms among the described step a are meant text, JPEG (joint photographic experts group) figure (JPEG) form or binary data.
Clauses and subclauses among the described step a can be the clauses and subclauses that combine of two or more initial data.
Clauses and subclauses among the described step a also comprise sign, display position and the title of initial data.
Column among the described step b is a tree form data structure, under the column clauses and subclauses, the structure of column can be a primary structure, also can be secondary structure, described secondary structure is meant sets up a plurality of columns under the root column, editor's clauses and subclauses are added under each column, and column comprises the sign and the size of each clauses and subclauses.
Encapsulation among the described step c comprises generation download service initialization information, generate and download indication information, generate data download block message step, comprised column information in the described download service initialization information, generated and download the clauses and subclauses module information that has comprised in the indication information under Level-2 column and each column.
Described generation download service initialization information specifically may further comprise the steps:
Generate wheel and broadcast indications;
Write the data segment of digital storage media control and bidding protocol;
Write digital storage media control and bidding protocol message segment and descriptor;
Write the column category information.
Described generation is downloaded indication information and specifically be may further comprise the steps:
Use wheel to broadcast indications;
Write the data segment of digital storage media control and bidding protocol;
Write digital storage media control and bidding protocol message segment and descriptor;
Write clauses and subclauses title module information.
Described generation data download block message specifically may further comprise the steps:
Set up and download indications;
Write the data segment of digital storage media control and bidding protocol;
Write digital storage media control and bidding protocol message segment and descriptor;
Write downloading data block;
Write the entry data content.
Wheel among the described step c is broadcast to two-layer the wheel and is broadcast, take turns sowing time two-layer, for the download service initial message, wheel is broadcast minimum 2 effective bytes of label in the 0x0000-0x0001 scope, for downloading Indication message, wheel is broadcast minimum 2 effective bytes of label in the 0x0002-0xFFFF scope.
Wheel among the described step c is broadcast to single ply tyre and is broadcast, and in single ply tyre sowing time, for downloading Indication message, wheel is broadcast minimum 2 effective bytes of label in the 0x0000-0x0001 scope.
The above data encapsulation that will generate according to Motion Picture Experts Group (MPEG-2) standard in the described steps d becomes Motion Picture Experts Group (MPEG-2) code stream specifically to may further comprise the steps:
Calculate digital storage media control and bidding protocol table segmenting number;
Judge whether segmentation has been write, calculate the bag number that segmentation can encapsulate if finish then continue, successively decrease if finish then indicate, continuation judges whether segmentation has been write, and has write then and has finished, if bag has been write then write packet header, wraps continuous mark and increases progressively;
If bag has been write, continue to judge whether to be first bag, if first Bao Ze writes the data-bias value of a byte, this value gets 0, at this moment, if remaining data volume is more than or equal to 183 bytes, then write the table data of 183 bytes, otherwise write remaining table data, fill 0XFF;
If not first bag, then continue whether to judge remaining data volume more than or equal to 184 bytes, if greater than would write the table data of 184 bytes, smaller or equal to then writing remaining table data, filling 0XFF.
Advantage of the present invention and beneficial effect are: the present invention follows DVB and Moving Picture Experts Group-2 generates clauses and subclauses with initial data, and set up column each entry data is linked, not only various various initial data can be imported, make digital TV contents abundant, and make that again the data format of playing is unified, highly versatile has improved the efficient of transfer of data and broadcast.
Description of drawings
Fig. 1 is a main flow chart of the present invention;
Fig. 2 is the entry structure schematic diagram;
Fig. 3 is the colume structure schematic diagram;
Fig. 4 is DSI product process figure;
Fig. 5 is DII product process figure;
Fig. 6 is DDB product process figure;
Fig. 7 is double-layer structure figure;
Fig. 8 is one deck structure chart;
Fig. 9 is data annexation figure;
Figure 10 is MPEG-2 code stream product process figure.
Embodiment
The present invention is further described in more detail below in conjunction with accompanying drawing.
Consult Fig. 1 main flow chart of the present invention, at first logging data, transmitting terminal is with the data of various forms, be loaded in the Radio Data System database, and it is combined to form clauses and subclauses as required, the form of initial data can be text, JPEG (joint photographic experts group) form (JPG), character string, binary data blocks etc.User by selecting file or hand input-data, when weaving into clauses and subclauses,, the corresponding clauses and subclauses of data, and clauses and subclauses also comprise sign, position and the title of data, clauses and subclauses also can be the combination of two or more initial data, can also specify the display position and the size of each initial data in the combination, the structure of clauses and subclauses as shown in Figure 2.
Transmitting terminal is organized colume structure then, and the data that are about to combine are connected under each column, referring to Fig. 3, is column under the root column, is clauses and subclauses under the column, constitutes tree form data structure.The structure of root column can be a primary structure, and at this moment, the column edit tool is set up the root column, and above editor's clauses and subclauses are added under the root column.When being secondary structure, the column edit tool is set up the root column, and sets up a plurality of columns under the root column, and above editor's clauses and subclauses are added under each column.
Afterwards, transmitting terminal encapsulates above-mentioned column, and the I and II column adopts different method for packing.
Digital television broadcasting (DVB) data carousel agreement is based on the data carousel standard of digital storage media control and bidding protocol DSM-CC.This standard has been used 4 DSM-CC download protocols.Broadcast data is by downloading data block DDB (DownloadDataBlock) message loading, and still module (Modules) control being cancelled DC (DownloadCancel) message by download service initialization DSI (DownloadServerInitiate) message, download message indication DI I (DownloadInfoIndication) message and download provides.DSI message is described all classes (Groups), all modules (Modules) in class of DII message semantic definition in a superclass (SuperGroup).
Described encapsulation comprises download service initialization (DSI) information that generates, and generates to download indication (DII) information, generates three steps of downloading data block (DDB) information.Consult Fig. 4, during encapsulation of data, at first generate DSI information, wherein comprised column (Group) information state.Generating download service initialization DSI information specifically may further comprise the steps: generate wheel and broadcast indications (tanszctionid), each control messages all has one (transaction_id) as the unique designator of this message; Write the data segment (DSM_CC section_header) of digital storage media control and bidding protocol; Write digital storage media control and bidding protocol message segment (DSM_CC Message_header) and descriptor; Write column category information (group_info).
Consult Fig. 5, generate then and download indication (DII) information, wherein comprised clauses and subclauses module (Module) information under Level-2 column and each column, column comprises the sign ID and the size of each clauses and subclauses.Described generation download indication information specifically may further comprise the steps and uses wheel to broadcast sign (tanszctionid); Write the data segment (DSM_CC section_header) of digital storage media control and bidding protocol; Write digital storage media control and bidding protocol message segment (DSM_CC Message_header) and descriptor; Write clauses and subclauses title module information (module_info).
Consult Fig. 6, last, again each module in each classification is generated downloading data block (DDB) information, what load in these DDB information is exactly the content information of clauses and subclauses.Generating the data download block message specifically may further comprise the steps: set up and download indications (DownLoadId); Write the data segment DSM_CC section_header of digital storage media control and bidding protocol); Write digital storage media control and bidding protocol message segment (DSM_CC Message_header) and descriptor; Write downloading data block; Write the entry data content.
In encapsulation DSI, DII and DDB information, these information must be encapsulated among the data segment SECTION of DSM-CC.
Class-mark among the DSI (GroupId), this thresholding equal to describe the value that generation wheel in such DDI (DownloadInfoIndication) message is broadcast designator (transactionId).
The downloading control message encapsulation is defined in the DSM-CC standard in Motion Picture Experts Group (MEPG-2) transport stream (TS).It has stipulated 2 least significant bytes among the transactionId are copied among the expansion table designator table_id_extension (can be directly used in the designator that filters out all data of specific sublist in the certain table from data flow during reception) of DSMCC_section head.
Data carousel of the present invention can be broadcast for two-layer the wheel, also can broadcast for single ply tyre.
The two-layer wheel sowing time, for DownloadServerInitiate message, minimum 2 effective bytes of TransactionId are in the 0x0000-0x0001 scope.For DownloadInfoIndication message, minimum 2 effective bytes of TransactionId should be in the 0x0002-0xFFFF scope.
In single ply tyre sowing time, for DownloadInfoIndication message, minimum 2 effective bytes of TransactionId are in the 0x0000-0x0001 scope.
More than two mean if know the bag designator (PID) of the data carousel that is being broadcasted, by the section filter is made as table_id=0X3B and table_id_extension=0X0000 or 0X0001, the transactionId that need not know the wheel multicast data just can find the highest level control messages, wherein table_id=0X3B downloading control message.One deck encapsulating structure is seen Fig. 7, and two-layer encapsulating structure is seen Fig. 8, and also the data connecting relation was as shown in Figure 9 after encapsulation was finished.
Referring to Figure 10, next, generate the MPEG-2 code stream, the above data encapsulation that will generate according to Moving Picture Experts Group-2 becomes code stream.After the data segment of all DSI, DII and DDB has all generated, these data segments are packaged into the bag packet that length is 188 bytes according to the form of MPEG-2.
The above data encapsulation that will generate according to Moving Picture Experts Group-2 becomes the MPEG-2 code stream specifically to may further comprise the steps:
Calculate digital storage media control and bidding protocol table segmenting number;
Judge whether segmentation has been write, calculate the bag number that segmentation can encapsulate if finish then continue, successively decrease if finish then indicate, continuation judges whether segmentation has been write, and has write then and has finished, if bag has been write then write packet header, wraps continuous mark and increases progressively;
If bag has been write, continue to judge whether to be first bag, if first Bao Ze writes the data-bias value of a byte, this value gets 0, at this moment, if remaining data volume is more than or equal to 183 bytes, then write the table data of 183 bytes, otherwise write remaining table data, fill 0XFF;
If not first bag, then continue whether to judge remaining data volume more than or equal to 184 bytes, if greater than would write the table data of 184 bytes, smaller or equal to then writing remaining table data, filling 0XFF.
At last, broadcast code flow, the router of transmitting terminal is by the code flow broadcast card played data, after directly entering modulator or entering modulator by multiplexer, is mixed into wired network.
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, for any modification or partial replacement that does not break away from the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (12)
1. data playing method that is used for digital television broadcasting, described digital television broadcasting comprise that data send and receive, and is characterized in that: may further comprise the steps:
A. transmitting terminal is written into the various formatted data clauses and subclauses that the user worked out in the database of Radio Data System;
B. transmitting terminal is connected to the data clauses and subclauses that combine under the column that the user constructs;
C. transmitting terminal encapsulates the column that connects according to the data carousel standard;
D. the transmitting terminal above data encapsulation that will generate according to Motion Picture Experts Group (MPEG-2) standard becomes Motion Picture Experts Group (MPEG-2) code stream;
E. transmitting terminal is by the code flow broadcast card played data, after making data directly enter modulator or entering modulator by multiplexer, is mixed into wired network.
2. the data playing method that is used for digital television broadcasting according to claim 1 is characterized in that: the data of the various forms among the described step a are meant text, JPEG (joint photographic experts group) figure (JPEG) form or binary data.
3. the data playing method that is used for digital television broadcasting according to claim 1 is characterized in that: the clauses and subclauses among the described step a can be the clauses and subclauses that combine of two or more initial data.
4. the data playing method that is used for digital television broadcasting according to claim 1 is characterized in that: the clauses and subclauses among the described step a also comprise sign, display position and the title of initial data.
5. the data playing method that is used for digital television broadcasting according to claim 1, it is characterized in that: the column among the described step b is a tree form data structure, under the column clauses and subclauses, the structure of column can be a primary structure, also can be secondary structure, described secondary structure is meant sets up a plurality of columns under the root column, editor's clauses and subclauses are added under each column, and column comprises the sign and the size of each clauses and subclauses.
6. the data playing method that is used for digital television broadcasting according to claim 1, it is characterized in that: the encapsulation among the described step c comprises generation download service initialization information, generate and download indication information, generate data download block message step, comprised column information in the described download service initialization information, generated and download the clauses and subclauses module information that has comprised in the indication information under Level-2 column and each column.
7. the data playing method that is used for digital television broadcasting according to claim 6 is characterized in that: described generation download service initialization information specifically may further comprise the steps:
Generate wheel and broadcast indications;
Write the data segment of digital storage media control and bidding protocol;
Write digital storage media control and bidding protocol message segment and descriptor;
Write the column category information.
8. the data playing method that is used for digital television broadcasting according to claim 6 is characterized in that: described generation is downloaded indication information and specifically be may further comprise the steps:
Use wheel to broadcast indications;
Write the data segment of digital storage media control and bidding protocol;
Write digital storage media control and bidding protocol message segment and descriptor;
Write clauses and subclauses title module information.
9. the data playing method that is used for digital television broadcasting according to claim 6 is characterized in that: described generation data download block message specifically may further comprise the steps:
Set up and download indications;
Write the data segment of digital storage media control and bidding protocol;
Write digital storage media control and bidding protocol message segment and descriptor;
Write downloading data block;
Write the entry data content.
10. the data playing method that is used for digital television broadcasting according to claim 1, it is characterized in that: the wheel among the described step c is broadcast to two-layer the wheel and is broadcast, take turns sowing time two-layer, for the download service initial message, wheel is broadcast minimum 2 effective bytes of label in the 0x0000-0x0001 scope, for downloading Indication message, wheel is broadcast minimum 2 effective bytes of label in the 0x0002-0xFFFF scope.
11. the data playing method that is used for digital television broadcasting according to claim 1, it is characterized in that: the wheel among the described step c is broadcast to single ply tyre and is broadcast, in single ply tyre sowing time, for downloading Indication message, wheel is broadcast minimum 2 effective bytes of label in the 0x0000-0x0001 scope.
12. the data playing method that is used for digital television broadcasting according to claim 1 is characterized in that: the above data encapsulation that will generate according to Motion Picture Experts Group (MPEG-2) standard in the described steps d becomes Motion Picture Experts Group (MPEG-2) code stream specifically to may further comprise the steps:
Calculate digital storage media control and bidding protocol table segmenting number;
Judge whether segmentation has been write, calculate the bag number that segmentation can encapsulate if finish then continue, successively decrease if finish then indicate, continuation judges whether segmentation has been write, and has write then and has finished, if bag has been write then write packet header, wraps continuous mark and increases progressively;
If bag has been write, continue to judge whether to be first bag, if first Bao Ze writes the data-bias value of a byte, this value gets 0, at this moment, if remaining data volume is more than or equal to 183 bytes, then write the table data of 183 bytes, otherwise write remaining table data, fill 0XFF;
If not first bag, then continue whether to judge remaining data volume more than or equal to 184 bytes, if greater than would write the table data of 184 bytes, smaller or equal to then writing remaining table data, filling 0XFF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100002179A CN1642279A (en) | 2004-01-05 | 2004-01-05 | Data broadcasting method for digital television broadcasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100002179A CN1642279A (en) | 2004-01-05 | 2004-01-05 | Data broadcasting method for digital television broadcasting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1642279A true CN1642279A (en) | 2005-07-20 |
Family
ID=34866679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100002179A Pending CN1642279A (en) | 2004-01-05 | 2004-01-05 | Data broadcasting method for digital television broadcasting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1642279A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413251C (en) * | 2006-07-04 | 2008-08-20 | 华为技术有限公司 | Unicast data group addressing method and its system |
| CN101483538A (en) * | 2009-01-23 | 2009-07-15 | 深圳市同洲电子股份有限公司 | Transmitting method, receiving method for security transaction data, system and equipment thereof |
| CN101978668A (en) * | 2008-02-15 | 2011-02-16 | 艾比奎蒂数字公司 | Method and apparatus for formatting data signals |
| CN101904121B (en) * | 2007-12-14 | 2012-10-03 | Lg电子株式会社 | Data broadcast receiver and method for gathering data broadcasting application |
| CN112822523A (en) * | 2020-12-29 | 2021-05-18 | 深圳Tcl新技术有限公司 | Electronic program guide data transmission method, system, device and storage medium |
-
2004
- 2004-01-05 CN CNA2004100002179A patent/CN1642279A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413251C (en) * | 2006-07-04 | 2008-08-20 | 华为技术有限公司 | Unicast data group addressing method and its system |
| CN101904121B (en) * | 2007-12-14 | 2012-10-03 | Lg电子株式会社 | Data broadcast receiver and method for gathering data broadcasting application |
| CN101978668A (en) * | 2008-02-15 | 2011-02-16 | 艾比奎蒂数字公司 | Method and apparatus for formatting data signals |
| CN101978668B (en) * | 2008-02-15 | 2014-05-14 | 艾比奎蒂数字公司 | Method and apparatus for formatting data signals |
| CN101483538A (en) * | 2009-01-23 | 2009-07-15 | 深圳市同洲电子股份有限公司 | Transmitting method, receiving method for security transaction data, system and equipment thereof |
| CN112822523A (en) * | 2020-12-29 | 2021-05-18 | 深圳Tcl新技术有限公司 | Electronic program guide data transmission method, system, device and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1820507A (en) | System and method for digital multimedia broadcasting | |
| CN1792095A (en) | Direct rtp delivery method and system over mpeg network | |
| CN1152571C (en) | Information transmitting apparatus and method, information receiving apparatus and method, provider, and broadcasting system | |
| US7958264B2 (en) | URI pointer system and method for the broadcast of MPEG-4 data in an ATSC MPEG-2 transport stream file system | |
| US20070237184A1 (en) | Method and apparatus for providing Internet protocol datacasting service in digital audio broadcasting system | |
| CN1516184A (en) | Processing method of multi-media data | |
| CN1372666A (en) | Universal STB architectures and control method | |
| CN1897658A (en) | Webpage requesting multi-medium applied system and realization for one-way network | |
| CN1666526A (en) | Generic adaptation layer for JVT video | |
| CN1883202A (en) | Method for updating software of a target device using an extended identifier in digital broadcasting | |
| CN101031062A (en) | Method for transmitting mobile multi-medium broadcasting electronic service guide | |
| CN1276127A (en) | System for formatting and processing multimedia program data and program guide information | |
| CN1918911A (en) | Apparatus and method for transforming a digital TV broadcasting signal to a digital radio broadcasting signal | |
| CN1801679A (en) | Mobile broadcast service distributing method and system | |
| CN1845595B (en) | Method for transmitting, extracting and searching program information and search engine, set-top box | |
| CN1308867C (en) | Data ransmission and receive apparatus | |
| CN1642279A (en) | Data broadcasting method for digital television broadcasting | |
| CN1976477A (en) | Mobile multi-media broadcasting data transmitting method | |
| CN1295689A (en) | Method and system for client-server interaction in interactive communications | |
| CN1642261A (en) | Method for mixed broadcasting picture-character and service information | |
| CN1557102A (en) | Recording and re-insertion of teletext data | |
| CN1976495A (en) | Mobile multimedia broadcasting control information and media information specification transmitting method | |
| CN1976294A (en) | Method for transmitting mobile multimedia broadcasting electronic service guide | |
| CN1929604A (en) | Universal break-in broadcasting for descriptor | |
| CN1276662C (en) | Broadcast type VOD system based on multicast and request 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |