CN1968421A - Method and apparatus for implementing digital media advertisement in digital TV system - Google Patents
Method and apparatus for implementing digital media advertisement in digital TV system Download PDFInfo
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- CN1968421A CN1968421A CNA2006101570455A CN200610157045A CN1968421A CN 1968421 A CN1968421 A CN 1968421A CN A2006101570455 A CNA2006101570455 A CN A2006101570455A CN 200610157045 A CN200610157045 A CN 200610157045A CN 1968421 A CN1968421 A CN 1968421A
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Abstract
The invention relates to a method for realizing digit media advertisement in digit TV system, and relative device, wherein said method comprises that: using XML format to match present watch guide, to generate relative XML index document; organizing service information list needed by advertisement service and positioning identifier mark of advertisement service data flow; generating the control information and data index information of advertisement service data; packing advertisement data, control information, data index information, XML index document, and service information list, into transmission flow data meeting digit TV standard; transmitting the data, complexing it into digit TV network. And the device comprises: XML advertisement editing module; system information generating module, data packing module, and data complexing playing module. The invention can guide operator to add advertisement service into present digit TV, to reduce cost.
Description
[technical field]
The present invention relates to the digital television techniques field, particularly in digital television system, realize the method and the device thereof of media advertisement.
[background technology]
Progressively universal, the digital cable customers amount that develop along with digital TV products increase severely day by day, are more and more had an optimistic view of by businessman based on the advertising business of digital media terminal (Digital Television, set-top box STB) user interface.As long as the needs of displaying are arranged, businessman all wishes suitable ad data is arranged, be illustrated on all man-machine interfaces with reasonable manner.
Traditional advertisement implementation method is: ad data (as: picture, literal, animation etc.) programming is gone in the memory cell of digital media terminal equipment, when the digital media terminal device power-up, press set mode by embedded software, from memory cell, call ad data, and on man-machine interface, show; And the shortcoming of this showing advertisement mode is: ways of presentation is dumb, and ad content is single, and the user can not in time understand up-to-date advertising message; If will upgrade ad data, then must comprise the upgrading of program module update all to the embedded software in the digital media terminal apparatus, this cost concerning the business system of runing is too big, many cost risks are also arranged, as: digital media terminal equipment is power down suddenly in the process of software upgrading, may cause equipment damage to a certain degree.
In addition, can also be by in digital television program, realizing advertising business, its process is roughly as follows:
The audio/video program business is carried out digital coding → multiplexing equipment carries out multiplexing process → scrambling encryption → modulation → mixing → transmission → reception → fm demodulation → demultiplexing → decoding → demonstration and exports on digital media terminal equipment
But, the mode of this realization advertising business, need on finishing the basis of advertising shooting, advertising company carry out, therefore, the advertisement implementation procedure is comparatively complicated, need the long ad production time, and need the higher advertising expenditure of payment, be unfavorable for that each small business formulates the advertising strategy according to own characteristic.
[summary of the invention]
The technical problem to be solved in the present invention provides a kind of method and device thereof of realizing digital media advertisement in digital television system, and operator can increase various advertising businesses based on the standard of existing Digital Television, reduces advertising expenditure.
Technical scheme of the present invention is:
In digital television system, realize the method for digital media advertisement, may further comprise the steps:
101, watch guide so that the XML form is corresponding current, and generate corresponding XML index file;
102, tissue is provided with digital television system increases the required service information list of advertising business and the identifier of positioning advertising business data flow;
103, generate the control information and the data directory information of advertisement traffic data information;
104, control information, data directory information, XML index file, service information list and ad data are packaged into the transport stream structure data that meet digital television standard;
105, described transport stream structure data are broadcast, multiplexing transmission is in digital TV network.
Step 101 further comprises:
201,, draw the logical construction of program guide according to the boot sequence and the DISPLAY ORDER of digital media terminal;
202, the corresponding program guide of XML form, and describe the attribute of ad content comprises the order of broadcast and constantly;
203, generate the corresponding XML index file of watching guide.
Step 102 further comprises:
301,, distribute specific transactions numbering and Business Name for the advertising business of described increase by the plan of operation of current digital television system;
302, generate corresponding business group contingency table, the value of bouquet identifier is the arbitrary value between the 0x60C0 to 0xFFFE in the named list, and the link descriptor that increases the specific descriptor of private data and be used for positioning advertising business datum sign after bouquet descriptor length field;
303,, generate the Program Association Table and the Program Map Table of advertising business according to the business numbering and the Business Name that have distributed.
Step 302 further comprises: the value of the descriptor tag in the specific descriptor of described private data is the arbitrary value between the 0x80 to 0xFE, and unique identifier is set to " advertisement ".
Step 302 further comprises: the link type field value in the described link descriptor is the arbitrary value between the 0xA1 to 0xFE, carries the ad data sign in the ground floor circulation of described link descriptor.
Step 303 further comprises: according to the business numbering and the Business Name that have distributed, and the described advertising business of registration in the SDT Service Description Table in current digital television system.
Step 303 further comprises: the business type field value in the described SDT Service Description Table is the arbitrary value between the 0x80 to 0xFE.
Step 302 further comprises: described advertising business place frequency, modulation system and symbol rate are set in the private_data_byte1 territory in the link descriptor of BAT bouquet association table.
The described method that realizes digital media advertisement in digital television system, when the every generation of the content of ad data once changes, then the version of bouquet correlation table number is worth corresponding change once.
In digital television system, realize the device of digital media advertisement, comprising:
One data multiplex is broadcast module, according to the transmission standard of digital television system the multiple path transmission flow structured data is carried out multiplexing process, generates digital composite stream, and digital composite stream is inserted in the digital TV network;
Also comprise:
One XML advertisement editing module draws corresponding tree structure according to program guide, increases ad data in specific necessary position, and describes its attribute, finally exports corresponding XML index file, realizes advertisement editing;
One system information generation module generates and the required various system business information table data of output digital television system operation advertising business;
And a packing data module, by digital television system information source standard, described system message list data, XML index file and ad data are packaged as the transport stream structure data, and described transport stream structure data are exported to described data multiplex broadcast module.
The invention has the beneficial effects as follows:
Advertisement implementation method of the present invention is based on that the standard of present Digital Television launches, by generating the XML index file, the organization number television system realizes the required information table parameter of advertising business, then with the XML index file, service information list and ad data are packed by digital television standard, at last data and television programme data after the packing are carried out multiplexing process, and send in the digital TV network, when digital media terminal receives digital composite stream from digital TV network after, by a series of processing, on its display interface, demonstrate ad content at last, thereby realized the advertising function of digital media terminal; By method of the present invention, only need to change the information relevant with advertising business, get final product online flexible renewal advertisement data content, make the advertisement content variation, satisfy the different consumer groups' demand; The standard of Digital Television proposes because method of the present invention is based on, and the hardware configuration of digital media terminal required relatively low, and adaptability is strong; In addition, operator realizes advertising business by method of the present invention, but the real-time online operation, reduces maintenance cost greatly, can be operator and brings increment, has reduced the required various expenses of advertisement that realize simultaneously.
[description of drawings]
Fig. 1 is the module map of advertisement implement device of the present invention.
Fig. 2 is the flow chart of advertisement implementation method of the present invention.
Fig. 3 is the process schematic diagram that ad data of the present invention upgrades.
[embodiment]
Below in conjunction with drawings and Examples the present invention is further set forth:
Fig. 1 is the module map of advertisement implement device of the present invention, this device comprises that XML advertisement editing module, system information generation module, packing data module and data multiplex broadcast module, XML advertisement editing module is connected with packing data module one input, the system information generation module is connected with another input of packing data module, the output of packing data module is connected with the input that data multiplex is broadcast module, the output that data multiplex is broadcast module is connected in the digital TV network, wherein:
XML advertisement editing module draws corresponding tree structure according to program guide, increases ad data in specific necessary position, and describes its attribute, finally exports corresponding XML index file, realizes advertisement editing;
The system information generation module generates and the required various system message list data of output digital television system operation advertising business;
The packing data module by digital television system information source standard, is packaged as the transport stream structure data with described system message list data, XML structured file and ad data, and described transport stream structure data is exported to described data multiplex broadcast module;
Data multiplex is broadcast module, according to the transmission standard of digital television system the multiple path transmission flow structured data is carried out multiplexing process, generates digital composite stream, and digital composite spread is passed in the digital TV network.
Fig. 2 is the flow chart of advertisement implementation method of the present invention, mainly may further comprise the steps:
One, watches guide so that the XML form is corresponding current, and generate corresponding XML index file, comprising:, draw the logical construction of program guide according to the boot sequence and the DISPLAY ORDER of digital media terminal; The corresponding program guide of XML, and describe the attribute of ad content comprises the order of broadcast and constantly; Generate the XML index file of corresponding program guide;
Two, tissue is provided with digital television system increases the required service information list of advertising business and the identifier of positioning advertising business data flow, comprise: by the plan of operation of current digital television system, distribute specific transactions numbering and Business Name, generate corresponding business group contingency table; In service information list, Program Association Table and Program Map Table are registered described advertising business;
Three, generate the control information and the data directory information of advertisement traffic data information;
Four, ad data, control information, data directory information, XML index file and service information list are packaged into the transport stream structure data that meet digital television standard, comprise: the control information to ad data index information and ad data is packed; The XML index file is packaged as the transport stream structure data that meet digital television standard; Ad datas such as " picture, data messages " is packaged into the standard transmission flow structure;
Five, above-mentioned transport stream structure data broadcast, become digital composite stream and be transferred in the digital TV network with other television services data flow multiplexings.
After finishing five above-mentioned steps, digital media terminal receives digital composite stream to it from digital TV network and carries out respective handling, just can demonstrate ad content on its display interface, thereby has realized the advertising function of digital media terminal.
Below each step of the embodiment of the invention is carried out specific description:
(1) tissue of the ad data of the whole menu structure of the embodiment of the invention is adopted general XML form, realizes advertisement editing, and wherein, the ad content in the ad data is medium, picture and/or text banner.
At first, according to digital media terminal boot sequence, DISPLAY ORDER, the logical construction of abstract program guide (tree structure), for example, the logical construction of program guide, as follows:
Start
|
Show first width of cloth advertisement picture
Show second width of cloth advertisement picture
…
Show n width of cloth advertisement picture
|
Show main menu
|
Show the one or more advertisement picture at the interface of main menu ad-hoc location
|
Wait for that the user selects specific transactions
The user selects specific transactions A
|
The guideline interface of display business A
|
Show the one or more advertisement picture at the interface ad-hoc location
Secondly, according to the logical construction of above-mentioned program guide, the corresponding program guide of XML is described the DISPLAY ORDER of picture, main menu and various functions, and describes contents such as the order of attribute, broadcast of ad content and the moment, and concrete XML file structure is as follows:
Bootlogo/* start-up picture */Logo1 :/* picture 1*/file_number:1 format:gif position:(x; Y) height:100 width:50 duration:2 ... logo2/* picture 2*/file_number:2 format:gif position:(x, y) height:100 width:50 duration:1 ... MainMenu/* main menu */function:TV/* function one */Item1: ... function:Intetactive/* function 2*/function:AudioBroadcast/* function ... */function:favorite function:Info function:VOD function:Mail function:Config ... Ad/* main menu advertisement */＜!--SIPO＜DP n=" 7 "〉--〉＜dp n=" d7 "/and ad1 :/* picture 1*/file_number:3 format:gif position:(x; Y) height:100 width:50 duration:0 ... ad2 :/* picture 2*/ad3 :/* picture ... */ad4:... Stripe/* vertically hung scroll */current/follow/* is current/follow-up vertically hung scroll ... and */channel1 :/* logical channel 1*/ad1:file_number:4 format:gif position:(x, y) height:100 width:50 duration:2 ... ad2:... channel2 :/* logical channel 2*/ad1:ad2:... channel3:ad1:ad2:... channel3:
At last,, generate corresponding XML index file (index.xml file) form by above-mentioned XML file structure, as follows:
＜xml version=" 1.0 " encoding=" UTF-8 "＞＜root＞＜Bootlogo＞＜Logo name=" Logo1 "＞＜file_number＞1＜/file_number＞＜!--SIPO＜DP n="8"〉--〉＜dp n="d8"/〉＜format＞gif＜/format＞＜position_x＞0＜/position_x＞＜position_y＞0＜/position_y＞＜height＞100＜/height＞＜width＞50＜/width＞＜duration＞2＜/duration＞＜version＞1＜/version＞＜/Logo＞＜Logo name＝"Logo2"＞＜file_number＞2＜/file_number＞＜format＞gif＜/format＞＜position_x＞0＜/position_x＞＜position_y＞0＜/position_y＞＜height＞100＜/height＞＜width＞50＜/width＞＜duration＞1＜/duration＞＜version＞1＜/version＞＜/Logo＞＜/Bootlogo＞＜MainMenu＞＜function name＝"TV"/＞＜function name＝"Intetactive"/＞＜function name＝"AudioBroadcast"/＞＜function name＝"favorite"/＞＜function name＝"Info"/＞＜function name＝"VOD"/＞＜function name＝"Mail"/＞＜function name＝"Config"/＞＜ad name＝"ad1"＞＜file_number＞3＜/file_number〉＜format＞gif＜/format＞＜position_x＞0＜/position_x＞＜position_y＞0＜/position_y＞＜height＞100＜/height＞＜width＞50＜/width＞＜version＞1＜/version＞＜duration＞0＜/duration＞＜/ad＞＜/MainMenu＞＜Stripe＞＜Current_follow＞＜Network id＝”100”＞＜Ts id＝”1”＞＜!--SIPO＜DP n="9"〉--〉＜dp n="d9"/〉＜Service id＝"1"＞＜ad name＝"ad1"＞＜file_number＞4＜/file_number＞＜format＞gif＜/format＞＜position_x＞0＜/position_x＞＜position_y＞0＜/position_y＞＜height＞100＜/height＞＜width＞50＜/width＞＜duration＞0＜/duration＞＜version＞1＜/version＞＜/ad＞＜subtitle＞＜text＞2006？...＜/text＞＜duration＞0＜/duration＞＜/subtitle＞＜/Service＞＜Service id＝"2"＞＜ad name＝"ad1"＞＜file_number＞5＜/file_number＞＜format＞gif＜/format＞＜position_x＞0＜/position_x＞＜position_y＞0＜/position_y＞＜height＞100＜/height＞＜width＞50＜/width＞＜duration＞0＜/duration＞＜version＞1＜/version＞＜/ad＞＜subtitle＞＜text＞：！＜/text＞＜duration＞0＜/duration＞＜/subtitle＞＜/Service＞＜/Ts＞＜Ts id=" 2 "＞...＜/Ts＞...＜/Network＞＜/Current_follow＞＜/Stripe＞＜/root＞
(2) for realizing advertising business, tissue is provided with digital television system in the method for the present invention increases the required service information list of advertising business and the identifier of positioning advertising business data flow.
In the data broadcast of digital TV standard, the method that has many realization data to download, the present invention follows data broadcast standard and takes into account simplification, selects following scheme:
1., by the plan of operation of current digital television system, distribute specific transactions numbering and Business Name, organize BAT table (Bouquet Association Table, BAT bouquet association table):
In the PSI/SI of front end EPG system (electronic program guidance system) stream, insert a plurality of linkage_descriptor descriptors that meet the private data standard, the linkage_descriptor descriptor specifically is arranged at the BAT table, describes frequency, business, the PID data such as (identifiers) at ad data place in this descriptor; Be mainly used in and describe the position that advertisement, LOADER data flow are transmitted in the native system network, and other BAT tables Bouquet_id assurance can not conflict in the Bouquet_id of this table and the system.
Bouquet_id field value in the BAT table is the arbitrary value between the 0x60C0 to 0xFFFE, and the field value that embodiments of the invention are selected is 0xFF00 (following the DVB standard);
In the linkage_descriptor descriptor, the value of linkage_type field is the arbitrary value between the 0xA1 to 0xFE, being described as follows of the linkage_type field value that embodiments of the invention are selected:
0xA0 represents Loader upgrading (reservation);
0xA1 represents ad data;
0xA2 ~ ~ 0xFE represents to reserve in the future and uses.
BAT table of the present invention (Bouquet Association Table, BAT bouquet association table) is as shown in the table:
| Grammer | Figure place | Memonic symbol |
| bouquet_association_section(){ table_id section_syntax_indicator | ? 8 1 | ? uimsbf bslbf |
| reserved_future_use reserved section_length bouquet_id reserved version_number current_next_indicator section_number last_section_number reserved_future_use bouquet_descriptors_length { Private_data_specifier_desc riptor() Linkage_descriptor() …… Linkage_descriptor() } reserved_future_use transport_stream_loop_length CRC_32 } | 1 2 12 16 2 5 1 8 8 4 12 ? ? ? ? ? ? ? 4 12 32 ? | bslbf bslbf uimsbf uimsbf bslbf uimsbf bslbf uimsbf uimsbf bslbf uimsbf ? ? ? ? ? ? ? bslbf uimsbf rpchof ? |
Wherein, more new capital of any data will cause the version_number value to change (increasing 1) in the ad data, and what data specifically will be located is, then terminal need travel through the XML file, relatively the version field value.The private data content that the present invention increases newly promptly increases following content after the bouquet_descriptors_length field:
{
Private_data_specifier_descriptor()
Linkage_descriptor()
……
Linkage_descriptor()
}
After the bouquet_descriptors_length field in the newly-increased content, the theing contents are as follows shown in the table of Private_data_specifier_descriptor descriptor:
| Grammer | Figure place | Memonic symbol |
| Private_data_specifier_descriptor(){ | ||
| ? descriptor_tag＝0x?F0 | ? 8 | ? uimsbf |
| date_Length | 8 | uimsbf |
| for(i＝0；i＜N；i++){ Private_ID } } | ? 8 ? ? | ? uimsbf ? ? |
In the contents table of Private_data_specifier_descriptor descriptor, the unique identifier semanteme is:
The value of descriptor tag descriptor_tag is the arbitrary value between the 0x80 to 0xFE, the descriptor tag descriptor_tag in the embodiment of the invention: be fixed as " 0xF0 ";
Private_ID: suggestion transfers " advertisement " to.
After the bouquet_descriptors_length field in the newly-increased content, the theing contents are as follows shown in the table of Linkage_descriptor descriptor:
| Grammer | Figure place | Memonic symbol |
| linkage_descriptor(){ descriptor_tag descriptor_length transport_stream_id original_network_id service_id linkage_type if(linkage_type＝0xA1{ for(i＝0；i＜N；i++){ private_data_byte1 } } for(i＝0，i＜n，i++){ | ? 8 8 16 16 16 8 ? ? 8 ? ? ? | ? uimsbf uimsbf uimsbf uimsbf bslbf uimsbf ? ? bslbf ? ? ? |
| private_data_byte2 } } } | 16 ? ? ? | uimsbf ? ? ? |
In the contents table of Linkage_descriptor descriptor, being identified in the ground floor circulation among the linkage_descriptor of sign advertisement data content carried, being designated of advertisement data content:
for(i＝0；i＜N；i++){
private_data_byte1
}
}
for(i＝0，i＜n，i++){
private_data_byte2
}
In the contents table of Linkage_descriptor descriptor, the semanteme of linkage descriptor is:
The transport_stream_id:16 bit field, sign comprises the TS (transport stream) of appointed information business.
The original_network_id:16 bit field, the network_id of the professional original transmitted system of unique identification appointment.
The service_id:16 bit field, the information service among the unique identification TS.Service_id is identical with program_number in the corresponding program map section.If the linkage_type value is 0x04, then service_id is nonsensical, need be made as 0x0000.
The linkage_type:8 bit field, the definition link type, for example with Info Link, see the following form:
| Link type | Describe |
| 0xA0 | Reserve and use |
| 0xA1 | Ad data |
| 0xA2 to 0xFF | Reserve and use |
In the contents table of Linkage_descriptor descriptor, linkage_type is 0xA1, and the data content (private_data_byte1) that carries transmission is as shown in the table:
| Grammer | Figure place | Memonic symbol |
| Private_data_byte1 () { descriptor_length frequency modulation symbol_rate reserved_future_use AD_Headdata_table_id AD_Picdata_table_id reserved data_byte (reserve and use) } | ? 8 32 8 28 4 8 8 8 8 ? | ? uimsbf bslbf bslbf bslbf bslbf bslbf bslbf bslbf uimsbf ? |
In the private_data_byte1 contents table, each field semantic as follows:
Frequency f requency:
32 bit fields provide frequency values with 84 binary-coded decimals, and unit is MHz (megahertz).Decimal point is positioned at (as: 0312.0000MHz) after the 4th binary-coded decimal.
Modulation system modulation:
8 bit fields.Point out the modulation system of wired transfer system, the definition following table:
| Modulation system (hexadecimal) | Describe |
| 0x00 | Undefined |
| 0x01 | 16QAM |
| 0x02 | 32QAM |
| 0x03 | 64QAM |
| 0x04 | 128QAM |
| 0x05 | 256QAM |
| 0x06 to 0xFF | Reserve and use |
Symbol rate symbol_rate:
28 bit fields are represented the value of symbol rate with 74 binary-coded decimals, and unit is Msymbol/s (million symbolic number/second), and decimal point is positioned at (as: 027.4500) behind the 3rd binary-coded decimal.
AD_Headdata_table_id：
The table identifier of ad data stream head control data table;
AD_Picdata_table_id：
Ad data flow data part (picture part) table identifier initial value, suggestion is decremented to 0x00 from 0xFD.
Private_Data_Byte2: main multifrequency point advertising data keep.
Date_type: reserve and use.
2., according to the business of having distributed numbering and Business Name, the described advertising business of registration in the SDT Service Description Table in digital television system, organize SDT table (SDT Service Description Table):
Professional suggestion is described in the EPG system at ad data stream, and in " service_descriptor " of SDT table, the specified services type is " 0xFE "; SDT Service Description Table is mainly considered is not having to realize a kind of solution of advertisement, LOADER business under the support of EPG front end system; If the EPG system is arranged, then unification is generated by the EPG system; Mainly to describing current advertisement or LOADER service description, type of service service_type=0xFE (nonnumeric television services).
Theing contents are as follows shown in the table of SDT table:
| Grammer | Figure place | Memonic symbol |
| service_descriptor(){ descriptor_tag descriptor_length service_type service_provider_length for(i＝0；i＜N；i++){ char | ? 8 8 8 8 ? 8 | ? uimsbf uimsbf uimsbf uimsbf ? uimsbf |
| } service_name_length for(i＝0；i＜N；i++){ char } } | ? 8 ? 8 ? ? | ? uimsbf ? uimsbf ? ? |
Wherein, type of service service_type is 8 bit fields, has defined professional type.Its coded system following table:
| Service_type | Describe |
| 0x00 | Reserve and use |
| 0x01 | Digital television business |
| 0x02 | DARS |
| 0x03 | Teletext service |
| 0x04 | NVOD is with reference to business |
| 0x05 | The NVOD time-shift service |
| 0x06 | Mosaic service |
| 0x07 | The Phase Alternation Line system code signal |
| 0x08 | The Sequential Color and Memory system code signal |
| 0x09 | D/D2-MAC |
| 0x0A | FM broadcasting |
| 0x0B | The TSC-system signal |
| 0x0C | Data broadcast service |
| 0x0D | Common interface uses to be reserved |
| 0x0E | RCS shines upon (seeing EN 301 790) |
| 0x0F | RCS FLS (seeing EN 301 790) |
| 0x10 | DVB MHP business |
| 0x11 to 0x7F | Reserve and use |
| 0x80 to 0xFE | User definition |
| 0xFF | Reserve and use |
3. according to the business numbering and the Business Name that have distributed, register described advertising business in the program correlation table (pat table) in digital television system.
4. according to the business numbering of having distributed, register described advertising business in the Program Map Table in digital television system (pmt table).
Generate above PSI information (pat table and pmt table), be mainly and adapt to some drop multiplexer apparatus appendix and consider, on many multiplexer equipment, when in the input port during no PAT/PMT table PSI information, refusal with data flow through equipment and generate a business.
It is pointed out that the ad data among the present invention comprises following content:
Control information (DOWN_CTRL_INFO);
Advertisement head data message (AD_HEAD data message), wherein the advertisement head data message comprises XML index file (Index.xml) and advertisement basic data file information (pic_information) pictorial information structure;
And ad content (is example with the picture).
In transmission course, more than the data flow segmental structure of three partial contents as shown in the table:
| Picture number | The image data segment number | Data type | ||
| Table_id | Table_extension_ id | section_number | Data type remarks ta type remarks | Remarks |
| 0xfe | 0x0000 | 0x00 | The Down_ctrl_info control information | Control information |
| 0X0001 ~ 0X00F0 | 0x00 ~ 0xFF | Index.xml | The AD_HEAD data message | |
| pic_information | ||||
| 0X00F1 ~ 0XFFFF (reservation) | ||||
| Table_id | Table_extension_ id (＝PIC_ID) | section_number | Data type remarks | Remarks |
| 0xFD ~ 0x00 | 0x0000 | 0x00 | segment?0 | The image data section |
| 0x01 | segment?1 | |||
| 0x02 | segment?2 | |||
| 0x03 | segment?3 | |||
| . | segment.. | |||
| . | segment.. | |||
| n | segment?n | |||
| 0x0001 | 0x00 | segment?0 | ||
| 0x01 | segment?1 | |||
| 0x02 | segment?2 | |||
| 0x03 | segment?3 | |||
| . | segment.. | |||
| . | segment.. | |||
| n | segment?n | |||
| 0xnnnn | 0x00 | segment?0 | ||
| 0x01 | segment?1 | |||
| 0x02 | segment?2 | |||
| 0x03 | segment?3 | |||
| . | segment.. | |||
| . | segment.. | |||
| n | segment?n |
The structure of wherein, control information (Down_ctrl_info) is as shown in the table:
| Syntactic description | Length (bit) | Remarks |
| down_ctrl_info_section(){ | ||
| Table_id | 8 | 0xFE |
| Section_syntax_indicator | 1 | |
| Private_indicator | 1 | |
| Reserved | 2 | |
| Section_length | 12 | |
| Table_extension_id＝0x0000 | 16 | |
| Reserved | 8 | |
| Section_number＝0x00 | 8 | |
| Last_section_number＝0x00 | 8 | |
| Index_xml_table_extension_id_start | 16 | |
| Index_xml_table_extension_id_end | 16 | |
| Index_xml_size | 32 | |
| Pic_information_table_extension_id _start | 16 | |
| Pic_information_table_extension_id _end | 16 | |
| Pic_information_size | 32 | |
| CRC_32 | 32 | The check code of dash area |
| } |
Each field implication in the control information (Down_ctrl_info):
The Table_id:8 bit width is put 0xFE;
Section_syntax_indicator: keep, put 1;
Private_indicator: keep, put 1;
Reserved: keep, put 1;
The Table_extension_id:16 bit width is put 0x0000;
The Section_number:8 bit width is put 0x00;
The Last_section_number:8 bit width is put 0x00;
The Index_xml_table_extension_id_start:16 bit width, the index.xml file data is beaten
During bag, initial table_extension_id is described;
The Index_xml_table_extension_id_end:16 bit width during packing of index.xml file data, describes stopping table_extension_id;
The Index_xml_size:32 width, index.xml file size (Byte);
The Pic_information_table_extension_id_start:16 bit width during Pic_informatiom packing data, is described initial table_extension_id;
The Pic-information_table_extension_id_end:16 bit width during Pic_informatiom packing data, describes stopping table_extension_id;
The Pic_information_size:32 width, Pic_informatiom size of data (Byte); The CRC_32:8 bit width;
Annotate: when data volume very hour, may have following situation:
Index_xml_table_extension_id_start＝Index_xml_table_extension_id_end＝Pic_information_table_extension_id_start＝Pic_information_table_extension_id_end
This moment, Index.xml table (Section) information section_number was from 0 initial, and Pic_information table information section_number then increases progressively initial.
Wherein, advertisement head data message table (AD_HEAD data message table) is as shown in the table:
| Syntactic description | Length (bit) | Remarks |
| AD_Head_section(){ | ||
| Table_id | 8 | 0xFE |
| Section_syntax_indicator | 1 | |
| Private_indicator | 1 | |
| Reserved | 2 | |
| Section_length | 12 | |
| Table_extension_id | 16 | =0x0001 is initial |
| Reserved | 8 | |
| Section_number | 8 | =0x00 is initial |
| Last_section_number | ||
| { | ||
| Data_type | 8 | ＝0x01(index.xml) ＝0x02 (pic_informaion) |
| Reserved | 4 | |
| Data_length | 12 | |
| data_byte | 8 | |
| } | ||
| CRC_32 | 32 | The check code of dash area |
| } |
Each field implication:
The Table_id:8 bit width is changed to 0xFE;
The Table_extension_id:16 bit width, from 0x0001:
Data_byte data type among Data_type: this section
=0x01:index.xml file data
=0x02:pic_information data
The Data_length:12 bit width, the length of identification data block is unit with byte Byte;
Data_byte:index.xml file or Pic_information data;
Wherein, advertisement basic data file information pic_information is as shown in the table:
| Title | Symbol | Length (bit) | Remarks | |
| Picture number | Pic_num | 16 | The advertisement picture number is provided in the current system altogether | |
| Picture 1 information | The picture numbering | pic_ID | 16 | Value is 1 (Table_extension_id) |
| Original length | Pic_original_size | 32 | ||
| Check code crc32 | Pic_crc32 | 32 | ||
| The picture section length | Pic_segment_length | 16 | ||
| The picture number of fragments | Pic_segment_num | 16 | ||
| The compression sign | Pic_compressed_flag | 1 | 0: do not compress 1: compression | |
| Keep | reserved | 7 | ||
| Compression back length | Pic_compressed_size | 32 | If do not compress: reduction length equals original length | |
| Picture 2 information | The picture numbering | pic_id | 16 | Value is 2 (Table_extension_id) |
| Original length | Pic_original_size | 32 | ||
| Check code crc32 | Pic_crc32 | 32 | ||
| The picture branch | Pic_segment_length | 16 | ||
| Segment length | ||||
| The picture number of fragments | Pic_segment_num | 16 | ||
| The compression sign | Pic_compressed_flag | 1 | 0: do not compress 1: compression | |
| Keep | reserved | 7 | ||
| Compression back length | Pi_compressed_size | 32 | ||
| Picture n information | The picture numbering | PIC_id | 16 | Value is n (Table_extension_id) |
| Original length | Pic_original_size | 32 | ||
| Check code crc32 | Pic_crc32 | 32 | ||
| The picture section length | Pic_segment_length | 16 | ||
| The picture number of fragments | Pic_segment_num | 16 | ||
| The compression sign | Pic_compressed_flag | 1 | 0: do not compress 1: compression | |
| Keep | reserved | 7 | ||
| Compression back length | Pic_compressed_size | 32 |
Wherein, image data segment structure table (pic_segment_data) is as shown in the table:
| Title | Symbol | Length (bit) | Remarks |
| Data type | Data_type | 8 | Keep |
| Keep | Reserved | 4 | |
| Length | Pic_segment_size | 12 | |
| Data | Pic_segment_data | 8 |
Wherein, image data table (pic_segment_data_section) is as shown in the table:
| Syntactic description | Length (bit) | Remarks |
| pic_segment_data_Section(){ | ||
| Table_id | ?8 | 0xFD |
| Section_syntax_indicater＝1 | ?1 |
| ‘0’ | 1 | |
| reserved | 2 | |
| section_length | 12 | |
| table_extension_id | 16 | |
| reserved | 8 | |
| section_number | 8 | |
| last_section_number | 8 | |
| { | ||
| pic_segment_data() | ||
| } | ||
| CRC_32 | 32 | The check code of dash area |
| } |
The implication of each field:
The Table_id:8 bit width is changed to 0xFD;
The Section_syntax_indicator:8 bit width is changed to 1;
The Section_length:12 bit width, the length of the section of indication after this field;
The Table_extension_id:16 bit width, expansion table_id describes the pictorial data segment number, and the data segment number is since 0 numeration;
The Section_number:8 bit width;
The Lasi_section_number:8 bit width;
CRC_32：MPEG2?CRC_32。
(3) ad data and described information table parameter are packaged into the transport stream structure data that meet digital television standard, comprising: the control information to ad content and ad data is packed; The XML index file is packaged as the transport stream structure data that meet digital television standard; Packing " picture, data message " becomes transport stream structure.
(4) be digital composite stream with television programme data and described transport stream structure data multiplex, be transferred in the digital TV network.
Fig. 3 is the process schematic diagram that ad data upgrades among the present invention.When ad data has renewal, directly upgrade the version number of BAT table, number change of the version of table judges whether the foundation of update displayed advertisement as digital media terminal.Change in case find version, digital media terminal should receive new data immediately, receives complete back and discharges the legacy data that received originally, upgrades OSD and shows.
Terminal equipment is at first searched BAT bouquet association table (BAT) in network, field { transport stream identification transport_stream_id by Linkage_descriptor descriptor in the BAT table, original network identification original_network_id, service identification service_id} come the queries ad business to belong to which physics frequency in which network, network; Inquire the Program Association Table (PAT) and the Program Map Table (PMT) of current business again by frequency, service_id.
In addition, the present invention can also pass through a kind of faster method sign advertising business, i.e. parameters such as direct clear and definite current business place, the private_data_byte1 territory frequency in the link descriptor of BAT bouquet association table, modulation system, symbol rate, terminal equipment can be according to the position of the quick positioning advertising business of these parameters in whole network.
In sum, advertisement implementation method of the present invention is based on that the standard of present Digital Television launches, by generating the XML index file, the organization number television system realizes the required information table parameter of advertising business, then with the XML index file, information table parameter and ad data are packed by digital television standard, at last data and television programme data after the packing are carried out multiplexing process, and send in the digital TV network, when digital media terminal receives digital composite stream from digital TV network after, by a series of processing, on its display interface, demonstrate ad content at last, thereby realized the advertising function of digital media terminal; By method of the present invention, can online flexible renewal advertisement data content, can be operator and bring increment, reduced the required various expenses of advertisement that realize simultaneously.
Claims (10)
1, in digital television system, realize the method for digital media advertisement, it is characterized in that, may further comprise the steps:
101, watch guide so that the XML form is corresponding current, and generate corresponding XML index file;
102, tissue is provided with digital television system increases the required service information list of advertising business and the identifier of positioning advertising business data flow;
103, generate the control information and the data directory information of advertisement traffic data information;
104, control information, data directory information, XML index file, service information list and ad data are packaged into the transport stream structure data that meet digital television standard;
105, described transport stream structure data are broadcast, multiplexing transmission is in digital TV network.
2, the method that realizes digital media advertisement in digital television system according to claim 1 is characterized in that step 101 further comprises:
201,, draw the logical construction of program guide according to the boot sequence and the DISPLAY ORDER of digital media terminal;
202, the corresponding program guide of XML form, and describe the attribute of ad content comprises the order of broadcast and constantly;
203, generate the corresponding XML index file of watching guide.
3, the method that realizes digital media advertisement in digital television system according to claim 1 is characterized in that step 102 further comprises:
301,, distribute specific transactions numbering and Business Name for the advertising business of described increase by the plan of operation of current digital television system;
302, generate corresponding business group contingency table, the value of bouquet identifier is the arbitrary value between the 0x60C0 to 0xFFFE in the named list, and the link descriptor that increases the specific descriptor of private data and be used for positioning advertising business datum sign after bouquet descriptor length field;
303,, generate the Program Association Table and the Program Map Table of advertising business according to the business numbering and the Business Name that have distributed.
4, the method that in digital television system, realizes digital media advertisement according to claim 3, it is characterized in that, step 302 further comprises: the value of the descriptor tag in the specific descriptor of described private data is the arbitrary value between the 0x80 to 0xFE, and unique identifier is set to " advertisement ".
5, the method that in digital television system, realizes digital media advertisement according to claim 3, it is characterized in that, step 302 further comprises: the link type field value in the described link descriptor is the arbitrary value between the 0xA1 to 0xFE, carries the ad data sign in the ground floor circulation of described link descriptor.
6, the method that in digital television system, realizes digital media advertisement according to claim 3, it is characterized in that, step 303 further comprises: according to the business numbering and the Business Name that have distributed, and the described advertising business of registration in the SDT Service Description Table in current digital television system.
7, the method that realizes digital media advertisement in digital television system according to claim 6, it is characterized in that step 303 further comprises: the business type field value in the described SDT Service Description Table is the arbitrary value between the 0x80 to 0xFE.
8, the method that in digital television system, realizes digital media advertisement according to claim 3, it is characterized in that step 302 further comprises: described advertising business place frequency, modulation system and symbol rate are set in the private_data_byte1 territory in the link descriptor of BAT bouquet association table.
9, the method that realizes digital media advertisement in digital television system according to claim 1 is characterized in that: when the every generation of the content of ad data once changes, then the version of bouquet correlation table number is worth corresponding change once.
10, in digital television system, realize the device of digital media advertisement, comprising:
One data multiplex is broadcast module, according to the transmission standard of digital television system the multiple path transmission flow structured data is carried out multiplexing process, generates digital composite stream, and digital composite stream is inserted in the digital TV network;
It is characterized in that, also comprise:
One XML advertisement editing module draws corresponding tree structure according to program guide, increases ad data in specific necessary position, and describes its attribute, finally exports corresponding XML index file, realizes advertisement editing;
One system information generation module generates and the required various system business information table data of output digital television system operation advertising business;
And a packing data module, by digital television system information source standard, described system message list data, XML index file and ad data are packaged as the transport stream structure data, and described transport stream structure data are exported to described data multiplex broadcast module.
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| CN101335884B (en) * | 2008-07-21 | 2010-06-09 | 深圳市同洲电子股份有限公司 | Multimedia data acquiring method and multimedia equipment |
| CN102098570A (en) * | 2011-02-23 | 2011-06-15 | 深圳创维数字技术股份有限公司 | Digital television information playing method and system |
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