CN101309399B - Television station mark display method for digital television system - Google Patents
Television station mark display method for digital television system Download PDFInfo
- Publication number
- CN101309399B CN101309399B CN2008100397237A CN200810039723A CN101309399B CN 101309399 B CN101309399 B CN 101309399B CN 2008100397237 A CN2008100397237 A CN 2008100397237A CN 200810039723 A CN200810039723 A CN 200810039723A CN 101309399 B CN101309399 B CN 101309399B
- Authority
- CN
- China
- Prior art keywords
- station
- station symbol
- descriptor
- program
- information table
- 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
Images
Abstract
The invention provides a station caption displaying method of a television broadcast station on a digital television platform. The displaying method is characterized in that the displaying method adopts the steps that a descriptor named as a linkage descriptor is inserted in a network information table stipulated by a protocol MPEG-2 by the head end of the television broadcast station, the station caption position information corresponding to each program is added into the descriptor, and the station caption of television broadcast station is displayed by utilizing the regulation mode of a screen menu according to the information by a user terminal. The displaying method provided by the invention ensures that the small-sized and medium-sized television broadcast stations which lack of the capability of adding station caption through video editing method can utilize the user terminal to display the self station caption of the television broadcast station.
Description
Technical field
The present invention relates to the TV station's mark display method in a kind of digital television system.
Background technology
On the simulated television platform, TV station will show oneself on user's television set station symbol need advance TV signal with the station symbol image blend at present.Domestic large-scale tv platform has content supplier and service provider's identity usually simultaneously, therefore has the ability to accomplish this point.But the program that regional small television stations comes play content provider to provide as just the service provider, do not possess the ability that the program secondary is made, therefore do not having extensive fund to drop under the situation of purchase of equipment the station symbol that shows oneself on can't television set the user.
Summary of the invention
Under the situation that Digital Television will be popularized on a large scale, may based on the digital television techniques of MPEG-2 for overcoming that this difficulty provides.The utility model provides a kind of station symbol implementation method based on the MPEG-2 system, allows small television stations can show the station symbol of oneself needs under the cooperation of ustomer premises access equipment, and can adjust station symbol at single program and whether show and display position.
The scheme that the utility model provides is: TV station's head end inserts the information of expression station symbol position in mpeg data, by the information of user side receiving platform cursor position, and station symbol is presented on the screen.Its concrete steps are:
Add private data in the network information table of step 1, TV station's head end MPEG-2 agreement regulation in the MPEG-2 system; Described step specifically is divided into the following step:
Insert the descriptor of linkage descriptor by name in step 1.1, the network information table of TV station's head end by corresponding conventional system management software MPEG-2 agreement regulation in the MPEG-2 system;
Step 1.2, in the described linkage descriptor of step 1.1, add private data; Described private data is meant program number and the corresponding station symbol display position and the information that whether shows of each program; That described station symbol display position is divided into is upper left, upper right, lower-left and bottom right; Described program number adopts the BCD coding;
Step 2.1, set up the station symbol location database, it is inserted the software systems of ustomer premises access equipment in advance, write down the initial station symbol position and the desired station symbol pattern of TV station's head end of each program in this database;
Step 2.2, in the search program, reinitialize the initial station symbol positional information of each program of the described station symbol location database of step 2.1, its step is divided into:
Step 2.2.1, ustomer premises access equipment 3 are according to the MPEG-2 protocol method traverses network information table of routine, and if there is no linkage descriptor then finishes search, if exist, then enters next step;
Step 2.2.2, read the data in the linkage descriptor, judge whether it is the station symbol information of present networks according to the original network identification symbol field of linkage descriptor, if not, step 2.2.4 then directly entered, if then enter next step;
Step 2.2.3, the program number in the described private data of step 1.2 in the network information table is decoded, and deposit the station symbol display position in the described private data of step 1.2 in step 2.1 described station symbol location database according to the program number that decoding obtains; Described decoding is meant the BCD decoding;
Step 2.2.4, continue the traverses network information table afterwards and judge whether to exist next linkage descriptor,, then return step 2.2.2, if there is no, then finish search if exist;
When step 2.3, user Qie Tai, ustomer premises access equipment real-time update station symbol positional information, its step is divided into:
Step 2.3.1, ustomer premises access equipment read out station symbol positional information and station symbol pattern according to the current program number in the network information table from the described station symbol location database of step 2.1, the station symbol pattern in the step 2.1 is presented on the television image with conventional on-screen menu display mode according to this information;
Step 2.3.2, ustomer premises access equipment wait for that network information table upgrades;
Step 2.3.3, ustomer premises access equipment judge according to the version number field in the network information table whether network information table is updated, if described network information table is not updated, then return step 2.3.2, if be updated, then the program number in the described private data of step 1.2 in the network information table is decoded, and deposit the station symbol display position in the described private data of step 1.2 in step 2.1 described station symbol location database according to the program number that decoding obtains, carry out identical operations afterwards, and return step 2.3.2 with step 2.3.1.
The length of the descriptor of Linkage described in the step 1.1 can not surpass 255 bytes.
The concrete structure of the descriptor of Linkage described in the step 1.1 is:
linkage_descriptor(){
descriptor_tag；
descriptor_length；
transport_stream_id；
original_network_id；
service_id；
linkage_type；
WaterMark_link_structure (); , wherein linkage_descriptor () be Linkage descriptor, descriptor_tag be descriptor TAG, descriptor_length be descriptor length, transport_stream_id in structure with, original_network_id be the network number that is assigned with of TV station's head end, service_id in structure with, linkage_type be used for confirming this Linkage descriptor entrained whether be that station symbol information and WaterMark_link_structure () they are the private datas described in step 1 and the step 1.2.
The concrete structure of private data described in step 1 and the step 1.2 is:
WaterMark_link_structure(){
for(i＝0；i＜N；i++){
WaterMark?Service?ID；
WaterMark?Position；
, wherein WaterMark_link_structure () is that private data, i are that temporary variable, N are that number of programs, WaterMark Service ID are that program number and WaterMark Position are the station symbol positional informations.
The described station symbol location database of step 2.1 adopts conventional secondary structure of arrays to realize, promptly use the memory address of an array of pointers storage station symbol pattern graph data, set up again one and program number one to one the structure array as master data base, each structure should comprise the initial station symbol position of corresponding program and the corresponding station symbol pattern of this program index position in array of pointers, thereby realize showing the function of specifying the station symbol pattern at assigned address according to program number, and the logical construction of database should design with reference to the structure of the program database of ustomer premises access equipment, and the size of the maximum number of programs definition databases that need to consider that ustomer premises access equipment is supported.
Step 2.3.1 is described to be read and is meant according to current program number and shines upon described secondary structure of arrays, just can obtain the position that the station symbol of current program need show and the index of array of pointers, extract the TV station specified stored memory position of station symbol pattern in software systems of head end by array of pointers again, next just can resolve and extract the data of this memory headroom according to the graphical format of routine.
This method is cooperated by described TV station head end and described ustomer premises access equipment and realizes that wherein the ustomer premises access equipment funtion part is the program by the C language compilation, and realizes based on the functional interface of the digital TV terminal hardware and software platform of routine; TV station's headend functions part is based on the editing of the system management software performing step 1 described network information table of routine.
The invention has the beneficial effects as follows that agreement is simple, easy operating need not to acquire in addition equipment.The present invention adopts the most frequently used network information table and Linkage Descriptor descriptor to guarantee all Digital Television head-end system compatibilities based on the MPEG-2 agreement.All station symbol information are concentrated and are left in the descriptor, help the head end change, safeguard.If TV station need change the station symbol pattern, also can realize by the software of upgrading ustomer premises access equipment.
Description of drawings
Fig. 1 is an application example of the present invention;
Fig. 2 is the program flow diagram that operates in the user side;
Fig. 3 is user side search NIT and the flow chart of obtaining the station symbol positional information;
Fig. 4 is user side detection NIT and the flow chart that upgrades the station symbol positional information.
Embodiment
Specify TV station's mark display method in a kind of digital television system provided by the invention below in conjunction with embodiment.An example of the present invention is the Digital Television head-end system that TV station's head end 1 has adopted NagraVision company.Ustomer premises access equipment 3 adopts teaching machine TV top box, and this set-top box has been used the Brazos CX24153 chipset of Conexant company, 16M byte of memory, 4M byte flash memory.Use C language compilation software.
In conjunction with application example shown in Figure 1, concrete steps of the present invention are as follows:
Add private data in the network information table 2 of step 1, TV station's head end 1 MPEG-2 agreement regulation in the MPEG-2 system; Described step 1 specifically is divided into the following step:
Insert the descriptor of Linkage descriptor by name in the network information table 2 of step 1.1, TV station's head end 1 MPEG-2 agreement regulation in the MPEG-2 system; The editor of the equal network enabled information table 2 of head-end system management software of conventional digital TV platform, and editor's flow process of different platform depends on the design of corresponding management software, so do not do detailed editing process introduction here, only points out that its concrete structure is:
linkage_descriptor(){
descriptor_tag；
descriptor_length；
transport_stream_id；
original_network_id；
service_id；
linkage_type；
WaterMark_link_structure()；}，
Wherein descriptor_tag is descriptor TAG, in the present embodiment its value be fixed as 0x4A,
Descriptor_length is a descriptor length, its length be 8,
Transport_stream_id usefulness not in structure, its length be 16,
Original_network_id is the network number that TV station's head end 1 is assigned with, its length be 16,
Service_id usefulness not in structure, its length be 16,
Linkage_type be used for confirming this Linkage descriptor entrained whether be station symbol information, its length is 8, in the present embodiment its value be fixed as 0x81,
WaterMark_link_structure () is the private data described in step 1 and the step 1.2.
The length of a Linkage descriptor can not surpass 255 bytes.
Step 1.2, in the described Linkage descriptor of step 1.1, add private data; Described private data is meant program number and the corresponding station symbol display position and the information that whether shows of each program; That described station symbol display position is divided into is upper left, upper right, lower-left and bottom right; Its concrete structure is
WaterMark_link_structure(){
for(i＝0；i＜N；i++){
WaterMark?Service?ID；
WaterMark?Position；
}}，
Wherein i be temporary variable, N be number of programs,
WaterMark Service ID is a program number, and its length is 12
WaterMark Position is the station symbol positional information, and its length is 4.
Upper left, upper right, lower-left and bottom right are used " 1 ", " 2 ", " 3 ", " 4 " representative respectively, and " 0 " representative does not show station symbol.In conjunction with the binary-coded decimal of program number, the station symbol complete information of forming a program jointly is two bytes.If program number is 56, and to show station symbol, WaterMark Service ID=0x056 then, WaterMark Position=0x1 in the upper left corner.
In system shown in Figure 1, the network number of TV station is 0x88, has 5 programs to be respectively:
Program number station symbol position description
10 1 upper left corners
39 0 do not show
101 2 upper right corner
103 3 lower left corners
110 4 lower right corner
Then according to step 1.1 and step 1.2, the value of Linkage descriptor is (using hexadecimal representation):
4A?13?00?00?00?88?00?00?81?01?01?03?90?10?12?10?33?11?04。
Described program number is adopted the BCD coding, be easy to head end like this and safeguard.
Step 2.1, set up the station symbol location database, it is inserted the software systems of ustomer premises access equipment in advance, write down the initial station symbol position and the desired station symbol pattern of TV station's head end of each program in this database;
The station symbol location database comprises following two parts array in this enforcement: TV station's head end 1 desired whole station symbol patterns are preset in the software systems with the form of array of pointers 1, and each station symbol pattern uses the array with fixed memory address; Set up the structure array 2 of the whole programs of correspondence, each structure comprises the initial station symbol position of corresponding program and the corresponding station symbol pattern of this program index in array of pointers 1, cross the just station symbol pattern content of addressable and reading pointer array 1 of array 2 according to the logical structure of program number like this, thereby realize showing the function of specifying the station symbol pattern at assigned address according to program number;
Step 2.2, as shown in Figure 3 in the search program, reinitializes the initial station symbol positional information of each program of the described station symbol location database of step 2.1, and its step is divided into:
Step 2.2.1, ustomer premises access equipment 3 are according to the MPEG-2 protocol method traverses network information table 2 of routine, and if there is no linkage descriptor then finishes search, if exist, then enters next step;
Step 2.2.2, read the data in the linkage descriptor, judge whether it is the station symbol information of present networks according to the original network identification symbol field of linkage descriptor, if not, step 2.2.4 then directly entered, if then enter next step;
Step 2.2.3, the program number in the described private datas of step 1.2 in the network information table 2 is decoded, and deposit the station symbol display position in the described private data of step 1.2 in step 2.1 described station symbol location database according to the program number that decoding obtains; Described decoding is meant the BCD decoding;
Step 2.2.4, continue traverses network information table 2 afterwards and judge whether to exist next linkage descriptor,, then return step 2.2.2, if there is no, then finish search if exist;
Step 2.3, as Fig. 2 and shown in Figure 4, during user Qie Tai, ustomer premises access equipment 3 real-time update station symbol positional informations, its step is divided into:
Step 2.3.1, ustomer premises access equipment 3 read out station symbol positional information and station symbol pattern according to the current program number in the network information table 2 from the described station symbol location database of step 2.1, the station symbol pattern in the step 2.1 is presented on the television image with conventional on-screen menu display mode according to this information;
TV station specifies totally 4 kinds of whole station symbol styles in this enforcement, so array 1 is deposited the memory address of each station symbol pattern in the step 2.1 by Unit 0 to 3; Software systems are supported 1000 of maximum number of programs in this enforcement, and program number is according to 1 to 1000 unique ordering.So array 2 comprises maximum 1000 structure nodes in the step 2.1, and subtract 1 addresses map (need subtract 1 is because array location is brought into use from 0 by the c program grammar request, and program number is according to using convention directly since 1 counting) by program number.For example to the program of program number 100, by array 2[99] to obtain the station symbol pattern be first kind (promptly corresponding the 0th pattern unit), its positional information is the screen upper left corner, again by array 1[0] memory address stored obtains the station symbol figure.Follow-up like this step display desired position information and graphical information just can all obtain easily.
Step 2.3.2, ustomer premises access equipment 3 wait for that network information table 2 upgrades;
Step 2.3.3, ustomer premises access equipment 3 judge according to the version number field in the network information table 2 whether network information table 2 is updated, if described network information table 2 is not updated, then return step 2.3.2, if be updated, then the program number in the described private data of step 1.2 in the network information table 2 is decoded, and deposit the station symbol display position in the described private data of step 1.2 in step 2.1 described station symbol location database according to the program number that decoding obtains, carry out identical operations afterwards, and return step 2.3.2 with step 2.3.1.
Claims (7)
1. the TV station's mark display method on the digital TV platform is characterized in that, the steps include:
Add private data in the network information table (2) of step 1, TV station's head end (1) MPEG-2 agreement regulation in the MPEG-2 system; Described step 1 specifically is divided into the following step:
Insert the descriptor of linkage descriptor by name in step 1.1, the network information table (2) of TV station's head end (1) by corresponding conventional system management software MPEG-2 agreement regulation in the MPEG-2 system;
Step 1.2, in the described linkage descriptor of step 1.1, add private data; Described private data is meant program number and the corresponding station symbol display position and the information that whether shows of each program; That described station symbol display position is divided into is upper left, upper right, lower-left and bottom right; Described program number adopts the BCD coding;
Step 2, ustomer premises access equipment (3) obtain station symbol information and it are presented on the television image; Described step 2 specifically is divided into the following step:
Step 2.1, set up the station symbol location database, it is inserted the software systems of ustomer premises access equipment in advance, write down the initial station symbol position and the desired station symbol pattern of TV station's head end of each program in this database;
Step 2.2, in the search program, reinitialize the initial station symbol positional information of each program of the described station symbol location database of step 2.1, its step is divided into:
Step 2.2.1, ustomer premises access equipment (3) are according to the MPEG-2 protocol method traverses network information table (2) of routine, and if there is no linkage descriptor then finishes search, if exist, then enters next step;
Step 2.2.2, read the data in the linkage descriptor, judge whether it is the station symbol information of present networks according to the original network identification symbol field of linkage descriptor, if not, step 2.2.4 then directly entered, if then enter next step;
Step 2.2.3, the program number in the described private data of the interior step 1.2 of network information table (2) is decoded, and deposit the station symbol display position in the described private data of step 1.2 in step 2.1 described station symbol location database according to the program number that decoding obtains; Described decoding is meant the BCD decoding;
Step 2.2.4, continue traverses network information table (2) afterwards and judge whether to exist next linkage descriptor,, then return step 2.2.2, if there is no, then finish search if exist;
When step 2.3, user Qie Tai, ustomer premises access equipment (3) real-time update station symbol positional information, its step is divided into:
Step 2.3.1, ustomer premises access equipment (3) read out station symbol positional information and station symbol pattern according to the current program number in the network information table (2) from the described station symbol location database of step 2.1, the station symbol pattern in the step 2.1 is presented on the television image with conventional on-screen menu display mode according to this information;
Step 2.3.2, ustomer premises access equipment (3) wait for that network information table (2) upgrades;
Step 2.3.3, ustomer premises access equipment (3) judge according to the version number field in the network information table (2) whether network information table (2) is updated, if described network information table (2) is not updated, then return step 2.3.2, if be updated, then the program number in the described private data of the interior step 1.2 of network information table (2) is decoded, and deposit the station symbol display position in the described private data of step 1.2 in step 2.1 described station symbol location database according to the program number that decoding obtains, carry out identical operations afterwards, and return step 2.3.2 with step 2.3.1.
2. the TV station's mark display method on a kind of digital TV platform as claimed in claim 1 is characterized in that, the length of linkage descriptor described in the step 1.1 can not surpass 255 bytes.
3. the TV station's mark display method on a kind of digital TV platform as claimed in claim 1 is characterized in that, the concrete structure of linkage descriptor described in the step 1.1 is:
linkage_descriptor(){
descriptor_tag；
descriptor_length；
transport_stream_id；
original_network_id；
service_id；
linkage_type；
WaterMark_link_structure (); , wherein linkage_descriptor () be linkage descriptor, descriptor_tag be descriptor TAG, descriptor_length be descriptor length, transport_stream_id in structure with, original_network_id be the network number that is assigned with of TV station's head end (1), service_id in structure with, linkage_type be used for confirming this linkage descriptor entrained whether be that station symbol information and WaterMark_link_structure () they are the private datas described in step 1 and the step 1.2.
4. the TV station's mark display method on a kind of digital TV platform as claimed in claim 1 is characterized in that, the concrete structure of private data described in step 1 and the step 1.2 is:
WaterMark_link_structure(){
for(i＝0；i＜N；i++){
WaterMark?Servi?ceID；
WaterMark?Position；
, wherein WaterMark_link_structure () is that private data, i are that temporary variable, N are that number of programs, WaterMark Service ID are that program number and WaterMark Position are the station symbol positional informations.
5. the TV station's mark display method on a kind of digital TV platform as claimed in claim 1, it is characterized in that, the described station symbol location database of step 2.1 adopts conventional secondary structure of arrays to realize, promptly use the memory address of an array of pointers storage station symbol pattern graph data, set up again one and program number one to one the structure array as master data base, each structure should comprise the initial station symbol position of corresponding program and the corresponding station symbol pattern of this program index position in array of pointers, thereby realizes showing the function of specifying the station symbol pattern at assigned address according to program number.
6. as the TV station's mark display method on a kind of digital TV platform as described in the claim 5, it is characterized in that, step 2.3.1 is described to be read and is meant according to current program number and is mapped to the described secondary structure of arrays of claim 5, just can obtain the position that the station symbol of current program need show and the index of array of pointers, extract the specified stored memory position of station symbol pattern in software systems of TV station's head end (1) by array of pointers again, next just can resolve and extract the data of this memory headroom according to the graphical format of routine.
7. the TV station's mark display method on a kind of digital TV platform as claimed in claim 4, it is characterized in that, this method cooperates realization by described TV station head end (1) and described ustomer premises access equipment (3), wherein said ustomer premises access equipment (3) funtion part is the program by the C language compilation, and realizes based on the functional interface of the digital TV terminal hardware and software platform of routine; Described TV station head end (1) funtion part is based on the editing of the system management software performing step 1 described network information table (2) of routine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100397237A CN101309399B (en) | 2008-06-27 | 2008-06-27 | Television station mark display method for digital television system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100397237A CN101309399B (en) | 2008-06-27 | 2008-06-27 | Television station mark display method for digital television system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101309399A CN101309399A (en) | 2008-11-19 |
| CN101309399B true CN101309399B (en) | 2010-08-18 |
Family
ID=40125579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100397237A Expired - Fee Related CN101309399B (en) | 2008-06-27 | 2008-06-27 | Television station mark display method for digital television system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101309399B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108240B (en) * | 2013-02-01 | 2015-09-30 | 深圳市九洲电器有限公司 | A kind of method and device obtaining station logo data |
| CN104935998B (en) * | 2015-06-01 | 2018-08-24 | 无锡天脉聚源传媒科技有限公司 | The method of adjustment and device of a kind of station symbol plug-in unit display area |
| CN105763957A (en) * | 2016-02-26 | 2016-07-13 | 深圳创维数字技术有限公司 | Program icon display method and apparatus based on set-top box |
| CN106131645A (en) * | 2016-07-18 | 2016-11-16 | 乐视控股（北京）有限公司 | The display packing of a kind of channel identication and device |
-
2008
- 2008-06-27 CN CN2008100397237A patent/CN101309399B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101309399A (en) | 2008-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9224246B2 (en) | Method and apparatus for processing media file for augmented reality service | |
| CN101309399B (en) | Television station mark display method for digital television system | |
| EP1626580A1 (en) | Aligning video data to create a comprehensive program guide | |
| CN101605229A (en) | The method of searching channels of all-in-one digital television | |
| CN102065234B (en) | Caption producing and broadcasting method and system based on distributive type caption processing system | |
| CN109906611A (en) | Characteristic spectrum for content characteristic map is laid out | |
| CN102326178A (en) | Method and apparatus for reproducing content through integrated channel management | |
| CN103501446B (en) | Internet television system based on gesture human-computer interaction technology and its implementation | |
| CN100448264C (en) | Method for quick writing channel information into cable digital TV set-top box | |
| CN107943363B (en) | Background image configuration method and device, interactive intelligent panel and storage medium | |
| CN103905744A (en) | Rendering synthetic method and system | |
| CN103024564B (en) | IPTV platform EPG page visual development and automatic generation method | |
| EP3062523A1 (en) | Display processing device, distribution device, and metadata | |
| CN100536556C (en) | A method to realize the design and update of picture advertisement of set top box | |
| CN105007537A (en) | Smart television booting animation control method and system | |
| CN101909162A (en) | Method for formulating programme schedule | |
| CN108769781A (en) | A kind of video tab localization method | |
| CN101646036B (en) | Method for searching electronic program guide of digital television | |
| CN101909047A (en) | Method and device for acquiring multimedia programs | |
| CN101689207A (en) | Visit to collection of content items is provided | |
| CN103188566B (en) | Video play device and operational approach thereof | |
| CN100502492C (en) | Method for realizing program list cooperative edition | |
| CN102065230A (en) | Networked caption manufacturing and broadcasting system | |
| CN103336784B (en) | A kind of method and apparatus of the preferred resources descriptor for determining resource | |
| CN101662620B (en) | Method for realizing multi-audio of digital television receiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20130627 |