CN100589535C - A kind of transmission method of electronic business guide table metadata - Google Patents
A kind of transmission method of electronic business guide table metadata Download PDFInfo
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- CN100589535C CN100589535C CN200710072955A CN200710072955A CN100589535C CN 100589535 C CN100589535 C CN 100589535C CN 200710072955 A CN200710072955 A CN 200710072955A CN 200710072955 A CN200710072955 A CN 200710072955A CN 100589535 C CN100589535 C CN 100589535C
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Abstract
The present invention proposes a kind of transmission method of electronic business guide table metadata, may further comprise the steps: (a) transmitting terminal is classified electronic business guide table metadata, generate traffic table and professional extend information table according to metadata, they comprise the different service metadata of attribute respectively; (b) electronic business guide table metadata is multiplexed into corresponding multiplexed frame, is transmitted to portable terminal through the broadcast transmission station again; (c) portable terminal receives the metadata that broadcast channel transmits, and the metadata of electronic service guide table is received and represents.
Description
Technical field
The present invention relates to the television program layout information of electronic service guide table (ESG), relate in particular to design, scheduling and transmission and its implementation of the ESG table metadata of mobile media broadcasting network.
Background technology
Along with the development of digital broadcasting technology, made that adopting the digital satellite broadcasting technology to provide such as mobile phone TV services becomes possibility.Mobile media broadcasting network can transmit more television channel in limited bandwidth, increased the quantity of the television channel that is transmitted, thereby also makes the user can enjoy many various television channel programs easily.
Yet, because the increase of television channel quantity makes the user be difficult to find easily TV programme of being liked or the program that will play from numerous television channel programs.So, need a kind of and the direct mutual guide that represents navigation information of spectators user, and electronic service guide table ESG produces at this demand.
The ESG table operates on user's the terminal equipment, not only can organize and television channel and the program that is provided be provided according to channel, briefing and program hot statistics rank but also reproduction time, the brief introduction of program, program classification, the virgin lock of program (or head of a family's control), program that the programme content of television channel is provided are won a prize, and the channel of the content pre-viewing of program and television services purchase or the like, can help spectators user from numerous TV programme, to select his interested TV programme easily.The user is by being presented at the content description information of the program on the ESG table, and whether decision watches this program.In general, the metadata that is provided is abundant more, and the navigation feature of ESG table is just strong more.
This huge ESG table metadata needs mobile media broadcasting network to be sent on user's the terminal.Yet, on the one hand, because the bandwidth constraints of mobile media broadcasting network; On the other hand, consider that the computational resource of portable terminal and memory space are limited, and the problems such as life-span of the performance of portable terminal and battery electrification time, so many ESG table metadata may not be handled and store to user's portable terminal.Therefore, design is suitable for the metadata structure of the ESG table under the mobile media broadcasting network, guarantees that user's terminal can receive the metadata of most important ESG table at least, is vital.
There is following problem in ESG table metadata list structure in the prior art, and the first, ESG table metadata form is too huge, and these metadata of broadcast transmission need consume too much wireless bandwidth, and terminal receives these metadata and also will consume many resources; The second, ESG table metadata design is unreasonable, if consider in the process of transmission packet loss appears, transmission is interrupted and problems such as terminal equipment limited storage space, it is unavailable the ESG table metadata that terminal equipment receives then can to occur.For example, terminal has received the contents table of ESG table metadata, but the information of having lost the reproduction time of this content, makes the user can't know the schedule information or the like of the content play of program.
For this reason, design the ESG table metadata that fully to describe media content, and in transmission course, can not take too much wireless bandwidth, also will consider the problems such as length of the electrification time of the performance of user terminal and its battery, be one and have challenging task.It has become the important topic that mobile media broadcasting network ESG table metadata form design aspect especially must solve.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of transmission method of electronic business guide table metadata, takies less wireless bandwidth in transmission course, considers the performance of portable terminal simultaneously.
In order to address the above problem, the present invention proposes a kind of transmission method of electronic business guide table metadata, may further comprise the steps:
(a) transmitting terminal generates traffic table and professional extend information table with the meta data category of electronic service guide table according to metadata, and they comprise the different service metadata of attribute respectively;
(b) described electronic business guide table metadata is multiplexed into corresponding multiplexed frame respectively, is transmitted to portable terminal through the broadcast transmission station again;
(c) portable terminal receives the metadata that broadcast channel transmits, and the metadata of electronic service guide table is received and represents.
Further, the transmission method of above-mentioned electronic business guide table metadata also can have following characteristics: in the described step (a), and being important or representing the electronic business guide table metadata that navigation information must be wanted of traffic table record; Professional extend information table record be the electronic business guide table metadata or the inferior important electron business guide table metadata of general property.
Further, the transmission method of above-mentioned electronic business guide table metadata also can have following characteristics: the electronic business guide table metadata in the described step (a) comprises the table metadata of the reproduction time information of the navigation information of television channel and programme information thereof, selection TV programme and content of TV program.
Further, the transmission method of above-mentioned electronic business guide table metadata, also can have following characteristics: the electronic business guide table metadata in the described step (a) also comprises the service metadata of TV programme pre-review information, and portable terminal only provides video preview in the described step (c) on the part screen.
Further, the transmission method of above-mentioned electronic business guide table metadata also can have following characteristics: also generated contents table and layout table in the described step (a), contents table comprises the theme of programme content at least, and the layout table is described the layout relation of professional and content.
Further, the transmission method of above-mentioned electronic business guide table metadata, also can have following characteristics: in described step (a), traffic table comprises the metadata of representing professional base attribute, comprise record identification, record length, Business Name, professional classification, service language, the service parameter call number, service identification, the key acquiring way, encrypt indication, professional extend information table comprises record identification, record length, business description, service language, the media data purposes, media data type, media data length, media data, extend information, extend information length and service language kind.
Further, the transmission method of above-mentioned electronic business guide table metadata also can have following characteristics: described contents table comprises record identification, record length, classifying content, duration, theme, summary, subtitle language, keyword, sound accompanying language, encryption indication, media data purposes, media data type, media data length, media data, extend information, extend information length, extend information data, language.
Further, the transmission method of above-mentioned electronic business guide table metadata, also can have following characteristics: described layout table comprises record identification, record length, business record sign, content record sign, theme, time started, encryption indication, live broadcast, replay, key acquiring way.
Further, the transmission method of above-mentioned electronic business guide table metadata, also can have following characteristics: also generate the service parameter table in the described step (a), be used to describe sound, the video playback parameter information of access service, portable terminal is by this parameter acquiring video flowing; Described service parameter table comprises record identification, record length, service parameter.
Further, the transmission method of above-mentioned electronic business guide table metadata also can have following characteristics: according to described service parameter call number, obtain professional play parameter information from professional parameter list.
Compared with prior art, the present invention proposes the transmission method of the electronic business guide table metadata in a kind of mobile multimedia broadcast system, overcome shortcomings such as the limited ability of narrow bandwidth, portable terminal of Mobile Multimedia Broadcasting and battery life be short, promoted the availability and the core competitiveness of system.
Description of drawings
Fig. 1 is the transmission method of electronic business guide table metadata among the embodiment.
Embodiment
In mobile multimedia broadcast system, transmitting terminal generates the ESG table, for example, traffic table, contents table, the ESG table sends to portable terminal by mobile multimedia broadcast system, and portable terminal receives the ESG table metadata and represents.
The present invention is described in further detail with embodiment with reference to the accompanying drawings below.
Fig. 1 is the transmission method of electronic business guide table metadata among the embodiment, may further comprise the steps:
Step 110, transmitting terminal is classified electronic business guide table metadata, generates traffic table and professional extend information table (or being called master meter and subtabulation) according to metadata, and they comprise the different metadata of attribute respectively;
In general, traffic table record is important or represents the ESG table metadata that navigation information must be wanted; Professional extend information table record then be the ESG table metadata or the inferior important ESG table metadata of general property.According to the different characteristic of ESG table traffic table and professional extend information table, can adopt different repetition rate (promptly wheel is broadcast frequency or cycle).
Traffic table has been represented professional base attribute, and professional extend information table then is some additional attributes.
Traffic table has comprised and has been used to describe relevant some the professional metadata of mobile multimedia broadcast system, and a business can be represented by a series of content item.Traffic table has been represented the metadata information of professional base attribute, and it is indispensable to be that portable terminal represents ESG table navigation information.Wherein, record identification is the ID of data record, is that the overall situation is unique; Record length is represented the length of this record, is unit with the byte; Business Name is the title of business/channel; Professional classified description the professional classification that belongs to; Service language indicates the code of the professional language that is adopted; The service parameter call number is represented to obtain professional play parameter information according to this index from professional parameter list, such as audio/video coding algorithm types, video resolution, audio sample rate etc.; Service identification, the traffic ID that the expression overall situation is unique has identified a business uniquely in Mobile Multimedia Broadcasting transmission multiplexed frame; The key acquiring way shows the ID of professional extend information table, is that the overall situation is unique; Encryption is designated as channel and encrypts indication, and wherein " 1 " expression is encrypted.
Professional extend information table (or professional subtabulation), this business extend information table comprises professional adeditive attribute.Wherein, record identification is represented the ID of data record, is that the overall situation is unique; Record length is represented the length of this record; Business description is that business is illustrated and describes, and has multilingual/literal and is described; Service language is represented the language that professional sound accompaniment is adopted, the language of business/channel for example, and such as Chinese, Korean etc.; The media file of business/channel that the media data type representative is provided, this document may be sound, picture and video; The media data purposes is represented the purposes of this media data, for example, and LOGO, preview picture, preview video, advertisement etc.; The length of media data lengths table registration certificate is unit with the byte; Media data is a binary data; Extend information is the extended field of business/channel, description and the more information that current frequency range/business is relevant; Extend information length is represented the length of information; The service language kind is the classification of business channels descriptive language.
The service parameter table is used to describe the play parameter information such as sound, video of access service, and portable terminal is by this parameter acquiring video flowing etc.It comprises field such as record identification, record length, service parameter etc.Wherein, record identification is the ID of data record, is that the overall situation is unique; Record length is represented the length of this record, is unit with the byte; Service parameter is represented the audio frequency and video parameter, such as audio/video coding algorithm types, video resolution, audio sample rate etc.
Contents table, being mainly used in the description the perhaps attribute of program, is the part of affiliated business/channel, and content can comprise the video/audio Media Stream, also can be multimedia messages (integrated information that comprises literal, sound, picture, video or the like is such as e-magazine).Contents table mainly comprises record identification, record length, classifying content, duration, theme, summary, subtitle language, keyword, sound accompanying language, encryption indication, media data purposes, media data type, media data length, media data, extend information, extend information length, extend information data, language etc.Wherein:
Record identification is the ID of data record, is that the overall situation is unique; Record length is the length of this record, is unit with the byte; Classifying content is represented the type of content, for example, and sound, picture, video or application; Duration is the time span of the broadcast of interior perhaps program, and unit is second; Theme is the title of content, may describe with multilingual; Summary is the simple description of content; Subtitle language is the language that captions adopt; Keyword is the keyword of search, can comprise a plurality of keywords; Sound accompanying language, the language that the description sound accompaniment is adopted, for example Chinese, Chinese/English etc.; Encryption is designated as " 1 " expression and encrypts; The purposes of media data purposes presentation medium data, for example, LOGO, preview picture, preview video, advertisement etc.; The media file of business/channel that the media data type representative is provided, this document may be sound, picture and video; The length of media data lengths table registration certificate is unit with the byte; Media data is represented binary data; Extend information is the extended field of contents table, describes the more information relevant with current content; Extend information length is represented the length of information; Extend information data representation binary data; The language that language representation's content is adopted.
The contents table of ESG table can provide the content pre-viewing function of TV programme, is particularly suitable for the spectators of pay TV programs, or whether watches also dithery spectators for program.Video preview only is presented on the sub-fraction of mobile terminal screen (being presented on the preview window in other words), can use less bandwidth for transmission video preview like this.
" media data purposes " field in the contents table provides this media data and is used as content pre-viewing or other, and " media data type " field shows the type (is as " content pre-viewing " if " media data purposes " field shows this media data) of the media file of this content pre-viewing, for example, preview picture, video preview, text message preview etc.
(program) layout table, the layout that is used to describe the content of professional and program concerns that a content can be programmed in a plurality of business.
The layout table mainly comprises record identification, record length, business record sign, content record sign, theme, time started, encryption indication, live broadcast, replay, key acquiring way etc.Wherein, record identification is the ID of data record, is that the overall situation is unique; Record length is represented the length of this record, is unit with the byte; The business record sign is the ID of the record of business/channel under the content, is that the overall situation is unique; The content record sign is the ID of content-data, is that the overall situation is unique; The title that themes as content may be described with multilingual; Time started is the time that content begins to play, and adopts the first meridian UTC time; Encryption is designated as " 1 " expression and encrypts; Live broadcast is live indication, and wherein " 1 " expression is live; Replay is the playback indication, and wherein " 1 " expression is replayed; The key acquiring way is to be left conditional access CA information to obtain inlet, which kind of approach to obtain professional key information by.
Step 120 is multiplexed into corresponding multiplexed frame respectively with the metadata of the electronic service guide table that generates, is transmitted to portable terminal through the broadcast transmission station again.The broadcast transmission repetition rate of different ESG tables may be different;
Step 130, portable terminal receive the metadata that broadcast channel transmits, and electronic business guide table metadata is received and represents.
Portable terminal receives the ESG table metadata, according to described traffic table record identification, search the layout table that has with its corresponding service table record identification field, the business channels of describing according to Business Name described in the layout table again, the time started and the duration of the contents table sign of the content of checking the program in the layout table in represented business channels, theme, content play, and according to described information to select television programs.Certainly, the user also can select program according to other information in traffic table and/or the contents table, perhaps with reference to the content in professional extend information table and/or the contents table, such as information to select television programs such as the type of media file and length.
Claims (10)
1, a kind of transmission method of electronic business guide table metadata is applied to mobile multimedia broadcast system, may further comprise the steps:
(a) transmitting terminal is classified electronic business guide table metadata, generates traffic table and professional extend information table according to metadata, and they comprise the different service metadata of attribute respectively;
(b) described electronic business guide table metadata is multiplexed into corresponding multiplexed frame respectively, is transmitted to portable terminal through the broadcast transmission station again;
(c) portable terminal receives the metadata that broadcast channel transmits, and the metadata of electronic service guide table is received and represents.
2, the transmission method of electronic business guide table metadata as claimed in claim 1 is characterized in that:
In the described step (a), being important or representing the electronic business guide table metadata that navigation information must be wanted of traffic table record; Professional extend information table record be the electronic business guide table metadata or the inferior important electron business guide table metadata of general property.
3, the transmission method of electronic business guide table metadata as claimed in claim 1 is characterized in that:
Electronic business guide table metadata in the described step (a) comprises the table metadata of the reproduction time information of the navigation information of television channel and programme information thereof, selection TV programme and content of TV program.
4, the transmission method of electronic business guide table metadata as claimed in claim 3 is characterized in that:
Electronic business guide table metadata in the described step (a) also comprises the service metadata of TV programme pre-review information, and portable terminal only provides video preview in the described step (c) on the part screen.
5, the transmission method of electronic business guide table metadata as claimed in claim 1 is characterized in that:
Also generated contents table and layout table in the described step (a), contents table comprises the theme of programme content at least, and the layout table is described the layout relation of professional and content.
6, the transmission method of electronic business guide table metadata as claimed in claim 1 is characterized in that:
In described step (a), traffic table comprises the metadata of representing professional base attribute, comprise record identification, record length, Business Name, professional classification, service language, service parameter call number, service identification, key acquiring way, encrypt indication, professional extend information table comprises record identification, record length, business description, service language, media data purposes, media data type, media data length, media data, extend information, extend information length and service language kind.
7, the transmission method of electronic business guide table metadata as claimed in claim 5 is characterized in that:
Described contents table comprises record identification, record length, classifying content, duration, theme, summary, subtitle language, keyword, sound accompanying language, encryption indication, media data purposes, media data type, media data length, media data, extend information, extend information length, extend information data, language.
8, the transmission method of electronic business guide table metadata as claimed in claim 5 is characterized in that:
Described layout table comprises record identification, record length, business record sign, content record sign, theme, time started, encryption indication, live broadcast, replay, key acquiring way.
9, the transmission method of electronic business guide table metadata as claimed in claim 6 is characterized in that:
Also generate the service parameter table in the described step (a), be used to describe sound, the video playback parameter information of access service, portable terminal is by this parameter acquiring video flowing; Described service parameter table comprises record identification, record length, service parameter.
10, the transmission method of electronic business guide table metadata as claimed in claim 9 is characterized in that:
According to described service parameter call number, from professional parameter list, obtain professional play parameter information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710072955A CN100589535C (en) | 2007-01-12 | 2007-01-12 | A kind of transmission method of electronic business guide table metadata |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710072955A CN100589535C (en) | 2007-01-12 | 2007-01-12 | A kind of transmission method of electronic business guide table metadata |
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| CN101005583A CN101005583A (en) | 2007-07-25 |
| CN100589535C true CN100589535C (en) | 2010-02-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101102449A (en) * | 2007-08-10 | 2008-01-09 | 中兴通讯股份有限公司 | Electronic service guidance dispatching system and method |
| CN102186105B (en) * | 2011-04-20 | 2013-03-13 | 深圳创维数字技术股份有限公司 | Digital television program playing system, method and digital television receiving terminal |
| TWI528803B (en) * | 2012-04-06 | 2016-04-01 | 瑞昱半導體股份有限公司 | Multimedia system, relevant multimedia information display device and multimedia information transmission method |
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