CN1875591A - Digital radio broadcast transmitting/ receiving system for providing download service of data files related to broadcast contents and method therefor - Google Patents
Digital radio broadcast transmitting/ receiving system for providing download service of data files related to broadcast contents and method therefor Download PDFInfo
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- CN1875591A CN1875591A CNA2004800318447A CN200480031844A CN1875591A CN 1875591 A CN1875591 A CN 1875591A CN A2004800318447 A CNA2004800318447 A CN A2004800318447A CN 200480031844 A CN200480031844 A CN 200480031844A CN 1875591 A CN1875591 A CN 1875591A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/40—Arrangements for broadcast specially adapted for accumulation-type receivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/71—Wireless systems
- H04H20/72—Wireless systems of terrestrial networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/27—Arrangements for recording or accumulating broadcast information or broadcast-related information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/762—Media network packet handling at the source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
Abstract
Provided are a digital radio broadcast transmitting/receiving system for providing a download service of data files related to broadcast contents, the method thereof, and a computer-readable recording medium for recording a program that implements the method. The system and method provide broadcast contents by, on the transmitting part, making the data files of the broadcast contents have the same title as the broadcast content, segmenting the data files, allocating the segments dynamically, and transmitting them to data broadcast stream; and, on the receiving part, extracting only the segments for the data files having the same title as a content selected by a user, restoring and storing the data files. The broadcast transmitting system includes a broadcast program data and content file collecting unit, a content stream generating unit, a broadcast program data encoding unit, a carousel broadcast scheduling unit, a data encoding unit, a multiplexing unit, and a digital radio transmitting unit.
Description
Technical field
The present invention relates to a kind of digital radio broadcast transmission/receiving system and method thereof of download service of the data file that is used for providing relevant with the broadcasted content of digital radio broadcast, and the computer readable recording medium storing program for performing that is used to realize this method.Especially, this system and method provides the download service of the data file relevant with broadcasted content in the following manner: make as the data file download service object, broadcasted content (data file of current broadcast content and the data file of several broadcasted contents of broadcasting) before to have the title identical with broadcasted content on transmit leg, with the data file segmentation, dynamically dispensing section makes that to repeat to transmit number when the current time is nearer bigger when the airtime of data file, and they are sent to data broadcast stream; And, the recipient, only extract the section of data file with title identical with user-selected content, recover and storing data files.
Background technology
Fig. 1 is the block diagram that the downloaded service in the conventional digital radio broadcast system is shown.
Routine digital radio broadcast system comprises radio station 10, digital wireless receiver 12 and music sales server 14.
Digital wireless receiver 12 will be processed into audio signal from the radio broadcasting signal that radio station 10 sends, and output audio signal.In addition, the music data and the sales data that comprise in the specific part of its display radio broadcast singal send the purchase request of particular music file from afar to music sales server 14 by communication network.Digital wireless receiver 12 comprises the equipment such as PDA(Personal Digital Assistant).
The music file that music sales server 14 is bought by communication network sales figure wireless receiver 12 (as PDA) request.In other words, music sales server 14 is connected to the communication network such as the internet, and will sell and send to PDA by the music file of form such as audio layer 3 (MP3) of Motion Picture Experts Group (MPEG).
Yet, although sharply rise, there is such problem with the quantity of the music sales server of low price sell high-quality music file, music file can only be sold by some music distributors of radio station's appointment.This is because the sales data that is used to visit the music sales server should be added on the radio broadcasting signal in company with the radio broadcasting signal transmission, and should realize visit between digital wireless receiver 12 and the music sales server 14 based on broadcast singal.
In addition, if because the restriction of the communication technology, a communication common carrier is designated as the professional company that individual mobile terminal can be visited, because individual mobile terminal can't directly be visited the sales company of broadcasting station appointment except using cordless communication network, therefore will use cordless communication network so.This has caused the problem to the high service charge of file in download.
Free or use broadcasting channel at a low price to provide to a plurality of clients under the situation of Digital Television (TV) data broadcasting of data, by predetermined transmission medium, as sky radio network or satellite network, ground network, cable system and cable network and internet, on the screen of TV broadcast program, show the whole data (for example, characteristic, annex and plot) relevant with entity.In addition, several data relevant and Additional Services data with broadcasted content, for example, the address of the data broadcast content of entity, ecommerce and shopping online together are provided to receiving terminal with the TV broadcast program.
The recipient can use can receiving digital broadcast terminal (as digital TV or computer) when watching digital broadcast program, watch the data relevant with broadcasted content.Because business data broadcasting uses digital TV (DTV), cable TV etc. as its transmission medium, it is hereby ensured that the data channel capacity of transfer of data is sufficient relatively.
Yet under the situation of digital radio broadcast, its transport channel capacities is littler than digital TV data broadcasting.Therefore, there is restriction in the data volume that can send, the recipient needs effective data dispatching broadcasting and method of coding data so that to download the desired data file minimum time of delay.
The file download service of conventional mobile communication terminal can be carried out One-to-one communication based on the characteristic of mobile communications network, and its problem is, because individual demand takies the bandwidth of mobile communication, so the cost costliness of transmission and receiving broadcast content.
In general digital radio broadcast, the music in the middle of the broadcasting may be known for the audience, perhaps just knows when the announcer informs this music.If the audience likes this music and wants to download it, he will remember this music, and inquires other people or search internet around him afterwards, and this is very inconvenient.
Summary of the invention
Therefore, the computer readable recording medium storing program for performing that an object of the present invention is to provide a kind of digital radio broadcast transmitting system of download service of the data file that is used to provide relevant and method thereof and realize this method with broadcasted content, make the recipient to download and the relevant data file of expecting of broadcasted content, and need not visit other sales of the contents server with low cost.This system and method provides the download service of the data file relevant with broadcasted content in the following manner: make broadcasted content (promptly, the content of current broadcast and several broadcasted contents of before the current broadcast content, broadcasting) data file have the title identical with broadcasted content, with the data file segmentation, dynamically dispensing section makes that to repeat to transmit number when the current time is nearer bigger when the airtime of data file, and section is sent to data broadcast stream.The data file of broadcasted content is the object of the download service in the digital radio broadcast.
Another object of the present invention provides a kind of computer readable recording medium storing program for performing of downloading the digital radio broadcast receiving system of the data file relevant with broadcasted content and method thereof and realize this method with minimum time delay the recipient of being used for, it is in recipient's extraction and have the section relevant with the data file of user-selected content same title, and recovers and storing data files.
According to an aspect of the present invention, a kind of digital radio broadcast transmitting system of download service of the data file that is used to provide relevant with broadcasted content is provided, comprise: broadcast program data and content file collector unit, be used to collect broadcast program data and the data file relevant with broadcasted content, described data file is the object of download service; Content stream generation unit is used for by the encoded data file of collecting relevant with broadcasted content generated broadcast content stream; The broadcast program data coding unit is used for by utilizing broadcast program data to generate will to be called the tabulation of the data file of data file list, and generates broadcast program data stream by data file list being added to broadcast program data and carrying out coding; Cycle type (carousel) broadcast scheduling unit is used for generating carousel allocation model by using the broadcast program data and the data file relevant with broadcasted content by broadcast program data and the collection of content file collector unit; The digital coding unit, thereby be used for generating the data broadcast stream section of obtaining by the segmentation data file relevant with broadcasted content, and based on carousel allocation model dispensing section dynamically, wherein relevant with broadcasted content data file comprises the content of current broadcast and the broadcasted content of having broadcasted of predetermined quantity; Multiplexing Unit is used for multiplexing broadcast content stream, broadcast program data stream and data broadcast stream, thereby generates multiplexing broadcasting stream; With the digital radio transmitting element, be used for multiplexing broadcasting stream is sent to digital radio broadcast network.
According to another aspect of the present invention, a kind of digital radio broadcast receiving system that is used to download the data file relevant with broadcasted content is provided, comprise: the digital radio receiving element is used for the digital radio broadcast signal is repeatedly used to broadcasting stream, broadcast program data and data broadcast stream; The broadcasting processing unit is used for the broadcasting stream after using is repeatedly decoded; The user capture unit is used for receiving the selection data that the user wants the data downloaded file from the user; The data file processing unit, output unit is delivered in the tabulation that is used for the data file that will extract from the broadcast program data of digital radio receiving element output, only from data broadcast stream, extract and have relevant with the data file of user-selected broadcasted content same title section according to the selection data of user input, and recovery and storing data files, the tabulation of data file is called data file list; And output unit, being used for will be from the video/audio signal output of the broadcasting processing unit decoding of sending, perhaps the data file list of sending from the data file processing unit with the form output of video/audio.
According to another aspect of the present invention, a kind of digital radio broadcast sending method of download service of the data file that is used to provide relevant with broadcasted content is provided, comprise step: a) collect broadcast program data and the data file relevant with broadcasted content, described data file is the object of download service; B) by the encoded data file of collecting relevant with broadcasted content generated broadcast content stream; C), and generate broadcast program data stream by data file list being added to broadcast program data and carrying out coding by utilizing broadcast program data to generate to be called the tabulation of the data file of data file list; D) by using broadcast program data and the data file relevant, generate carousel allocation model with broadcasted content; E) generate data broadcast stream by the segmentation data file relevant with broadcasted content, and based on carousel allocation model dispensing section dynamically, wherein relevant with broadcasted content data file comprises the content of current broadcast and the broadcasted content of having broadcasted of predetermined quantity; And f) multiplexing broadcast content stream, broadcast program data stream and data broadcast stream, and multiplexing broadcast content stream, multiplexing broadcast program data stream and multiplexing data broadcast stream sent to digital radio broadcast network.
According to a further aspect in the invention, a kind of digital radio broadcast method of reseptance that is used to download the data file relevant with the broadcasted content that is applied to digital radio broadcast is provided, comprises step: a) the data wireless broadcast singal is repeatedly used to broadcasting stream, broadcast program data and data broadcast stream; B) the broadcasting stream after using is repeatedly decoded; C) receive the selection data that the user wants the data downloaded file from the user; D) tabulation of the data file of extracting the broadcast program data of generation after using repeatedly; With e) by only from data broadcast stream, extracting according to user's selection data and have the section relevant and come the restore data file with the data file of user-selected broadcasted content same title, and store institute's data recovered file.
Description of drawings
By below in conjunction with the accompanying drawing description of preferred embodiments, above-mentioned and other purposes of the present invention and feature will become clear, wherein:
Fig. 1 is the block diagram that the downloaded service in the conventional digital radio broadcast system is shown;
Fig. 2 is the block diagram of describing according to the digital radio broadcast receive-transmit system of the download service of the data file that is used to provide relevant with broadcasted content of the embodiment of the invention;
Fig. 3 is the figure that illustrates according to the coding method of the digital coding unit of Fig. 2 of the embodiment of the invention;
Fig. 4 is the block diagram that illustrates according to the digital coding unit of Fig. 2 of the embodiment of the invention;
Fig. 5 is the flow chart of describing according to the digital radio broadcast sending method of the download service of the data file that is used to provide relevant with broadcasted content of the embodiment of the invention;
Fig. 6 is the block diagram of describing according to the digital radio broadcast method of reseptance of the download service of the data file that is used to provide relevant with broadcasted content of the embodiment of the invention;
Fig. 7 is the block diagram that illustrates according to the data processing unit of Fig. 6 of the embodiment of the invention; And
Fig. 8 is the flow chart of describing according to the embodiment of the invention that is used for downloading in the digital radio broadcast receiving system method of the data file relevant with broadcasted content.
Embodiment
To the description of embodiment, other purposes of the present invention and aspect will become clear, will describe below by with reference to the accompanying drawings.
Fig. 2 is the block diagram of describing according to the digital radio broadcast receive-transmit system of the download service of the data file that is used to provide relevant with broadcasted content of the embodiment of the invention.
The digital radio broadcast receive-transmit system comprises broadcast program data and content file collector unit 200, multimedia broadcasting coding unit 202, broadcast program data coding unit 204, audio broadcasting coding unit 206, cycle type (carousel) broadcast scheduling unit 208, digital coding unit 210, Multiplexing Unit 212, digital radio transmitting element 214 and database (DB) 216.
Broadcast program data is collected ' broadcast program data ' and ' with broadcasted content relevant data file ', perhaps content file by network by outside or operator with content file collector unit 200.Broadcast program data is drawn together the title of broadcast scheduling, airtime and broadcast program.Broadcasted content comprises multimedia broadcast contents and audio broadcasting content.
Multimedia broadcasting coding unit 202 and audio broadcasting coding unit 206 component contents stream generation unit.Content stream generation unit generates broadcast content stream by the data file relevant with broadcasted content of collecting in broadcast program data and the content file collector unit 200 encoded, that is, multimedia broadcast contents stream and audio broadcasting content flow.
The video of 202 pairs of mobile TV broadcasting of multimedia broadcasting coding unit is encoded according to broadcast standard with the audio signal relevant with video.In other words, it generates multimedia broadcasting stream by the encoded data file relevant with multimedia broadcast contents to collecting in broadcast program data and the content file collector unit 200.
206 pairs of audio-frequency signal codings of audio broadcasting coding unit are so that provide the same good tonequality with disc (CD) by digital radio broadcast to spectators.That is, it generates audio broadcast stream by the data file relevant with audio broadcasting content of collecting in broadcast program data and the content file collector unit 200 encoded.In addition, audio broadcasting coding unit 206 adds the title of the audio content of current broadcast audio stream to and carries out coding.Title is added to the dynamic level service that audio stream may be used on using the display screen demonstration music title (title of audio content) in the digital radio broadcast.Yet in the present invention, it is used for the recipient from data file search related audio file.
Broadcast program data coding unit 204 uses the tabulation that generates data file from the broadcast program data of broadcast program data and 200 transmissions of content file collector unit, so that provide this tabulation by recipient's screen to the user.Then, it generates broadcast program data stream by data file list being added to from the broadcast program data and the execution coding of broadcast program data and 200 transmissions of content file collector unit.Data file list is represented the tabulation of the data file relevant with the content of current broadcast and some contents of broadcasting before the current broadcast content.
Carousel broadcast scheduling unit 208 generates carousel allocation model by using from broadcast program data and content file collector unit 200 data files that send, relevant with broadcast program data and broadcasted content.Carousel allocation model is to form like this: when data file has from nearer airtime of current point in time, the section of making transmit and number of iterations bigger.
The carousel allocation model that digital coding unit 210 generates according to carousel broadcast scheduling unit 208, with with the audio broadcasting content (seeing the A of Fig. 3) of current broadcast be right after the relevant data file segmentation of before current audio broadcasting content, broadcasting of some audio broadcasting contents (seeing B and the C of Fig. 3), thereby obtain section, and shown in Fig. 3 and 4, generate data broadcast stream by dispensing section dynamically.In this process, digital coding unit 210 is by the title of the audio content that uses current broadcast or broadcasted, makes the data file relevant with current content and the content broadcasted have the title identical with broadcasted content.
The data file of sending as the object of download service can be the multi-medium data that multiple available data broadcasting provides, but they are defined as the multimedia file relevant with audio frequency that current audio broadcasting is broadcasted, as audio frequency, video, recreation, advertisement (AD), local data etc.
The data file relevant of database (DB) 216 stored broadcast program data and 200 collections of content file collector unit with broadcasted content and broadcast program data.
Fig. 3 is the figure that illustrates according to the coding method of the digital coding unit of Fig. 2 of the embodiment of the invention.Usually, the form of changeing with wheel repeats to send under the situation of data broadcasting of data therein, if the data that have many kinds to send, because the restriction of channel capacity, the recipient spends considerable time receiving data possibly.Therefore, need a kind of effective scheduled transmission time and method of coding data, can make the recipient to receive broadcast data minimum time of delay.
The data-encoding scheme of the carousel broadcast of advising in according to the present invention, the carousel allocation model that generates according to carousel broadcast scheduler 208 is divided into the section of normal size with content file A, the B relevant with current content and C, repeatedly sends then (see Fig. 3 320).As long as broadcasted content changes, just upgrade the tabulation of broadcast data file, and it is being included in back transmission in the broadcast program data.
In order to download the audio file such as MP3 apace, the title 302 of the data file of transmission should be on dynamic level the title 300 with broadcasted content identical, the title of audio frequency and advertisement for example.Then, with encoded data file and transmission.Subsequently, the user can have with the data file of audio content same title by search and downloads the desired data file.
As shown in FIG., will be the data file (A) of current content and by the segmentation data file update that send of recurrence of laying equal stress on corresponding to the data file (B and C) of the several contents of broadcasting before.When data file when current point in time is nearer, transmission and repeat number be (see Fig. 3 320) greatly.Like this, in the environment of data channel finite capacity, can download recipient's desired data file with minimum delay at any time.
The length that can consider channel capacity and file is determined recipient's the number of files and the data file number that are used for selecting the repetition of downloading.Minimum situation is the data file that can only download corresponding to the current broadcast content.The data file relevant with current content can be the MP3 relevant with audio content, the video such as music video, recreation, advertisement and local data.
Fig. 4 is the block diagram that illustrates according to the digital coding unit of Fig. 2 of the embodiment of the invention.Digital coding unit 210 comprises cycle type dynamic assignment control unit 400, file distribution unit 402, dynamic assignment unit 404, first-in first-out (FIFO) buffering area 406.Dynamic assignment unit 404 comprises a plurality of dynamic allocator 408,416 and 424, and each dynamic allocator 408,416 or 424 comprises carousel bank 410,418 and 426, clock generator 412,420 and 428 and switch 414,422 and 430.
Carousel broadcast scheduling unit 208 generates carousel allocation model by using from broadcast program data and broadcast program data and the data file relevant with content that content file collector unit 200 sends.
The carousel allocation model that cycle type dynamic assignment control unit 400 provides according to carousel broadcast scheduling unit 208, control documents Dispatching Unit 402 and clock generator 412,420 and 428.Carousel allocation model is a kind of being used for according to the airtime is put the Mathematical Modeling of distribution corresponding to the data file of the content of having broadcasted arbitrarily.Various parameters by transmission and recipient are calculated.
Will be further described below the data-encoding scheme of the present invention that utilizes file distribution unit 402 and clock generator 412,420 and 428.
The section of the data file that carousel bank 410,418 and 426 is distributed according to each data file storage data Dispatching Unit 402.That is, the section relevant with data file ' A ' is stored in the A file carousel bank, the section relevant with data file ' B ' is stored in the B file carousel bank.
Clock generator 412,420 and the 428 control cycle ground according to cycle type dynamic assignment control unit 400 generate clock.When airtime of the content of carousel bank when current point in time is nearer, the clock cycle is shorter.
Switch 414,422,430 is carried out rotary switch according to each clock generator 412,420 or 428 clocks that generate, and the section that will be stored in the data file in carousel bank 410,418 and 426 is accumulated in the fifo buffer 406, in the present invention, by making the clock cycle according to the carousel bank of each file and difference, the hop count in each storehouse of accumulation finally becomes irregular in the fifo buffer 406.
Finally, based on the control of carousel allocation model, determine the hop count of each data file that the cycle type data broadcasting is accumulated in fifo buffer 406 according to cycle type dynamic assignment control unit 400.By making carousel bank distribute soon more, broadcast the section of the data file relevant continually with the content of broadcasting recently from the near more clock rate of current point in time.
Digital coding is handled can accomplished in various ways, as software and hardware.
Fig. 5 is the flow chart of describing according to the digital radio broadcast sending method of the download service of the data file that is used to provide relevant with broadcasted content of the embodiment of the invention.
At first, in step S500, broadcast program data and content file collector unit 200 collect broadcast program data with the relevant content file of broadcasted content (as multimedia broadcast contents and audio broadcasting content), and it is stored in the database 216.
In step S502, encode by the content stream generation unit pair data file relevant that multimedia broadcasting coding unit 202 and audio broadcasting coding unit 206 are formed with the broadcasted content of collecting, and the generation broadcast content stream, that is, and multimedia broadcast contents stream or audio broadcasting content stream.The audio broadcasting coding unit 206 of one of parts of constitution content stream generation unit is carried out title with the audio content of current broadcast and is added function in the audio broadcast stream to during the audio broadcasting encoding process.
Simultaneously, in step S504, broadcast program data coding unit 204 generates the tabulation of data file by using the broadcast program data of collecting.In step S506,, generate broadcast program data stream by data file list is included in the broadcast program data.
In step S508, carousel broadcast scheduling unit 208 generates carousel allocation model by using the broadcast program data of collecting with the data file relevant with broadcasted content.Carousel allocation model forms by this way: when data file and its airtime when the nearer broadcasted content of current point in time is relevant, be that this data file is distributed more section, so that increase the transmission number of iterations of data file.
Then, in step S510, digital coding unit 210 is according to the carousel allocation model that generates, with the data file relevant with the audio broadcasting content of current broadcast and with the current broadcast content before the relevant data file segmentation of several broadcasted contents of broadcasting.In step S512,, generate data broadcast stream by carry out the cycle type dynamic assignment of section according to carousel allocation model.In digital coding is handled, make the data file relevant with current broadcast content and some contents of having broadcasted have with segmentation before the identical title of broadcasted content.
In step S514, the Multiplexing Unit 212 multiplexing broadcast content stream that in step S502, S504 and S512, generate, broadcast program data stream and data broadcast stream.In step S516, digital radio transmitting element 214 sends to digital radio broadcast network with multiplexing broadcasting stream.
Fig. 6 is the block diagram of describing according to the embodiment of the invention of digital radio broadcast receiving system that is used to download the data file relevant with broadcasted content.
The digital radio broadcast receiving system comprises digital radio receiving element 600, multimedia broadcasting processing unit 602, audio broadcasting processing unit 604, data processing unit 606, user capture unit 608, backward channel addressed location 610 and output unit 612.
To describe the structure of digital radio receiving system below in detail.Digital radio receiving element 600 received RFs (RF) signal and be decoded into digital radio broadcast stream.Digital radio receiving element 600 is furnished with that basic RF receives, RF-IF conversion, the function of usefulness repeatedly.It receives the digital radio broadcast signal and it is repeatedly used to broadcasting stream, broadcast program data and data broadcast stream.
Multimedia broadcasting processing unit 602 is decoded into the video of mobile TV broadcasting and audio stream can be by the video-audio signal of 612 performances of the output unit such as display and loud speaker.
Audio broadcasting processing unit 604 is handled digital audio broadcasting.It can provide with the independent audio stream of the same good tonequality of CD and be decoded into independent audio signal, the signal of decoding is sent to output unit 612, promptly, loud speaker, the corresponding data of title of the audio content that carries on decoding and the independent audio stream, and the data of decoding are sent to data processing unit 606.The audio content title data is represented the title data of the audio content of current broadcast.
Simultaneously, if there is the user to ask to download the data file relevant (in other words with the current broadcast content, if send the selection data that are used to download from the user), then data processing unit 606 can use the title data of audio content to search for and store to have the data file with the audio content same title of sending from audio broadcasting processing unit 604.According to this function, need not from data file list, carry out any selection by pressing function key simply, store the data file relevant with the current broadcast content.Especially, when being difficult to select data file from data file list, for example, when downloading some data files during the user wants driving, this function is very convenient.This method is called " simple download ".
In addition, after the data file of having downloaded user expectation, if the user has request, then data processing unit 606 can be play the data downloaded file, thereby the user can watch it or by interface equipment data file be sent to outside personal computer (PC).
User capture unit 608 for user capture receives about the selected data that are used for the data downloaded file from the user, and will select data to send to data processing unit 606.
Backward channel addressed location 610 receives and sends user's authentication data and charge data so that carry out paid service by using other communication line such as mobile communications network.
The Voice ﹠ Video signal of the decoding that (video or the audio form) that output unit 612 outputs are sent from multimedia broadcasting processing unit 602, audio broadcasting processing unit 604 and data processing unit 606 is relevant with broadcasted content.It is also exported from data processing unit 606 video and audio signals relevant with data file list that send.
Fig. 7 is the block diagram that illustrates according to the data processing unit of Fig. 6 of the embodiment of the invention.Data processing unit 606 comprises broadcast program data explanation and content file search unit 700, data decode unit 702, memory 704, audio/video processor 706 and external interface unit 708.
Broadcast program data is explained and content file search unit 700 is explained the broadcast program data of sending from digital radio receiving element 600, extracts data file list from broadcast program data, and by the tabulation of output unit 612 output data files.Then, if select particular data file (promptly in the data file of user from tabulation, if method for down loading is " selectivity download "), then broadcast program data explanation and content file search unit 700 are searched for the title data of 702 data files that receive from the data decode unit, find out the title identical, and the ID data of the file that searches are sent to data decode unit 702 with user-selected data file.
Simultaneously, under the situation of ' simple download ', broadcast program data explanation and content file search unit 700 are the title data of the data file of sending from data decode unit 702, search has the data file with the audio content same title of the current broadcast of sending from audio broadcasting processing unit 604, then the ID data of the data file that searches is delivered to data decode unit 702.
The digital broadcasting stream that sends by data channel is analyzed in data decode unit 702, and receives the ID data and the title data of the data file that is sent.Then, it delivers to broadcast program data explanation and content file search unit 700 (seeing 711) with title data relevant with data file and ID data.Subsequently, if data decode unit 702 receives the ID data (seeing 712) of user-selected data file from broadcast program data explanation and content file search unit 700, then it only extracts the section of user-selected data file by using the ID data, come the restore data file by merging section, and with the data recovered file storage in memory 704.
In addition, data decode unit 702 can be carried out data decode conditionally and use charge equipment to generate charge data, for example passes through the subscriber authorisation of backward channel or smart card.
Being stored in audio file in the memory 704 or the video file relevant with audio file can be by the whenever broadcast of audio/video processor 706 in user's request, and can use external interface unit 708 to send it to external system such as PC.By interface, data file can be sent to external system such as PC and terminal from digital radio broadcast receiving element (see figure 6).For example, can use as plurality of devices such as serial port, parallel port, USB (USB) and ' 1394 ' as external interface unit 708.
Fig. 8 is the flow chart of describing according to the embodiment of the invention that is used for downloading in the digital radio broadcast receiving system method of the data file relevant with broadcasted content.In the digital radio broadcast receiving element, download the processing (see figure 6) of the data file relevant shown in the figure with content.
In step S800, digital radio receiving element 600 is repeatedly used to multimedia broadcasting stream, audio broadcast stream, broadcast program data stream and data broadcast stream with digital wireless signal.In step S802, in the middle of these streams, in multimedia broadcasting processing unit 602 and audio broadcasting processing unit 604, handle broadcasting stream (that is, multimedia broadcasting stream and audio broadcast stream), and play by output unit 612.
In step S804, data processing unit 606 is analyzed the broadcast program data stream of sending from digital radio receiving element 600, and passes through output unit 612 to user's output video/audio form, relevant with current broadcast content data file list.
In step S806, data processing unit 606 checks whether the user has selected data file.If from user's selection, then logic does not turn back to step S802.
If download service is paid service and the data file that exists the user to select, then can adds step S808 and check user profile so that charge to the user for download service.Differentiate processing by the user who uses the user authorization data of sending from backward channel addressed location 610 to carry out the data processing unit 606.
If the user is authorized to, then in step S810, data processing unit 606 by analyze from digital radio receiving element 600 send use repeatedly after data broadcast stream, identification and relevant title data and ID data of data file from the transmission of digital radio broadcast transmitting system.In step S812, data processing unit 606 retrievals have the data file with user-selected data file same title, and check the ID data of institute's data retrieved file.
If user-selected number is ' selectivity download ' (selecting particular data file in the middle of the data file of data file list) according to the method for file, then search has data file with user-selected data file same title in the title data of the data file that receives from step S810 of data processing unit 606, and checks the ID data of the data file that finds.
Simultaneously, if the data file system of selection is ' simple download ', then search for the data file that has with the current broadcast audio content same title of sending in the data file that data processing unit 606 receives from step S810, and check the ID data of the data file that finds from audio broadcasting processing unit 604.
In step S814, data processing unit 606 only extracts the section relevant with user-selected data file by using the ID data, comes the restore data file by merging section, and storing data files.
Method of the present invention can be implemented as program and is stored in the computer readable recording medium storing program for performing, as CD-ROM, RAM, ROM, floppy disk, hard disk and magneto optical disk.
Technology of the present invention can replace using the data file of expensive mobile communications network transmission as the download service object by the data broadcasting channel in the digital radio broadcast network.Therefore, it can be that the user is with cheap price download data files.
Technology of the present invention also can be minimized in the time of download data files in the digital radio broadcast network with low volume transmission channel in the following manner: with a plurality of data file segmentations, section is carried out the cycle type dynamic assignment, make the airtime can have bigger repetition and transmission quantity, and send data file from the data file of the nearer broadcasted content of current point in time.
In addition, according to technology of the present invention, the user can download the desired data file quickly and easily when watching broadcasted content, and not even with the other sales of the contents server of visit.
Although described the present invention at certain preferred embodiment, it will be appreciated by those skilled in the art that, under the prerequisite of the scope of the invention that does not deviate from claims and limited, can carry out various changes and modification.
Claims (20)
1. the digital radio broadcast transmitting system of the download service of a data file that is used to provide relevant with broadcasted content comprises:
Broadcast program data and content file gathering-device are used to collect broadcast program data and the data file relevant with broadcasted content, and described data file is the object of download service;
The content stream generating apparatus is used for by the encoded data file of collecting relevant with broadcasted content generated broadcast content stream;
The broadcast program data code device is used for by utilizing broadcast program data to generate will to be called the tabulation of the data file of data file list, and generates broadcast program data stream by data file list being added to broadcast program data and carrying out coding;
The carousel broadcast dispatching device is used for generating carousel allocation model by using the broadcast program data and the data file relevant with broadcasted content by broadcast program data and the collection of content file gathering-device;
Data coding device, thereby be used for generating the data broadcast stream section of obtaining by the segmentation data file relevant with broadcasted content, and based on carousel allocation model dispensing section dynamically, wherein relevant with broadcasted content data file comprises the content of current broadcast and the broadcasted content of having broadcasted of predetermined quantity;
Multiplexer is used for multiplexing broadcast content stream, broadcast program data stream and data broadcast stream, thereby generates multiplexing broadcasting stream; With
The digital radio dispensing device is used for multiplexing broadcasting stream is sent to digital radio broadcast network.
2. digital radio broadcast transmitting system as claimed in claim 1, wherein the content stream generating apparatus comprises:
The multimedia broadcasting code device is used for generating multimedia broadcasting stream by the data file relevant with broadcasted content of being collected by broadcast program data and content file gathering-device encoded; With
The audio broadcasting code device is used for generating audio broadcast stream by the data file relevant with audio broadcasting content of being collected by broadcast program data and content file gathering-device encoded.
3. digital radio broadcast transmitting system as claimed in claim 2, wherein, the audio broadcasting code device is also carried out the function of the title of the audio content of current broadcast being added to audio broadcast stream.
4. digital radio broadcast transmitting system as claimed in claim 1, wherein, form the carousel allocation model that generates in the carousel broadcast dispatching device in such a way: make when data file with have when the broadcasted content of nearer airtime of current point in time is associated distribution more section.
5. digital radio broadcast transmitting system as claimed in claim 1, wherein data coding device comprises:
Cycle type dynamic assignment control device is used for the carousel allocation model control documents dispensing device and the cycle type dynamic assignment device that generate according to the carousel broadcast dispatching device;
The file distributing device, be used to make the data file relevant to have the title identical with broadcasted content with the current broadcast content and the broadcasted content of having broadcasted, with the data file section of being divided into, and section sent to cycle type dynamic assignment device according to the control signal of cycle type dynamic assignment control device;
Cycle type dynamic assignment device is used for the section of being distributed according to the control signal dynamic assignment file distributing device of cycle type dynamic assignment control device; With
First-in first-out (FIFO) storage device is used for the section of the data file that the rotatable dynamic assignment device of storage wheel distributed.
6. want 5 described digital radio broadcast transmitting systems as right, wherein cycle type dynamic assignment device comprises:
A plurality of carousel bank are used for according to the section of each broadcasted content storage by the data file of file distributing device distribution;
A plurality of clock forming devices are used for periodically generating clock according to the control signal of cycle type dynamic assignment control device; With
A plurality of switching devices are used for the clock that generates according to clock forming device, by carrying out rotary switch the section that is stored in the carousel bank are stored in the FIFO storage device.
7. want 5 described digital radio broadcast transmitting systems as right, wherein, when carousel bank with have when the broadcasted content of nearer airtime of current point in time is associated, the clock cycle of clock forming device is short.
8. digital radio broadcast receiving system that is used to download the data file relevant with broadcasted content comprises:
The digital radio receiving system is used for the data wireless broadcast singal is repeatedly used to broadcasting stream, broadcast program data and data broadcast stream;
Broadcast processing apparatus is used for the broadcasting stream after using is repeatedly decoded;
The user capture device is used for receiving the selection data that the user wants the data downloaded file from the user;
The data file processing unit, output device is delivered in the tabulation that is used for the data file that will extract from the broadcast program data of digital radio receiving system output, only from data broadcast stream, extract and have relevant with the data file of user-selected broadcasted content same title section according to the selection data of user input, and recovery and storing data files, the tabulation of data file is called data file list; With
Output device is used for the video/audio signal output of the decoding of will send from broadcast processing apparatus, perhaps the data file list of sending from the data file processing unit with the form output of video/audio.
9. want 8 described digital radio broadcast receiving systems as right, wherein, the data file processing unit comprises:
Broadcast program data is explained and the content file searcher, be used for extracting data file list from the broadcast program data that the digital radio receiving system is sent here, data file list is delivered to output device, if and receive the selection data of wanting the data downloaded file from the user, search has the data file with the data file same title of sending from data deciphering device, and identifier (ID) data of the data file that searches are delivered to data deciphering device;
Data deciphering device, be used for by analyzing title data and the ID data that the data broadcast stream of sending from the digital radio receiving system is come the recognition data file, title data and ID data are delivered to broadcast program data explanation and content file searcher, only extract the section relevant by using, and section is merged to come the restore data file with user-selected data file from broadcast program data explanation and the ID data that the content file searcher sends; With
Storage device is used to store data deciphering device institute data recovered file.
10. want 9 described digital radio broadcast receiving systems as right, also comprise:
The audio/video processing unit is used for answering user's request to play the data file that is stored in storage device.
11. want 9 described digital radio broadcast receiving systems as right, also comprise:
External interface device, the data file that is used for answering user's request will be stored in storage device sends to the outside.
12. want 8 described digital radio broadcast receiving systems as right, wherein,, method for down loading downloads if being selectivity, and then described selection data are titles of the data file selected in the middle of the data file of user from data file list; If perhaps method for down loading is a simple download, then described selection data are selection data of the title of the current broadcast audio content that sends from broadcast processing apparatus.
13. the digital radio broadcast sending method of the download service of a data file that is used to provide relevant with broadcasted content comprises step:
A) collect broadcast program data and the data file relevant with broadcasted content, described data file is the object of download service;
B) by the encoded data file of collecting relevant with broadcasted content generated broadcast content stream;
C), and generate broadcast program data stream by data file list being added to broadcast program data and carrying out coding by utilizing broadcast program data to generate to be called as the tabulation of the data file of data file list;
D) by using broadcast program data and the data file relevant, generate carousel allocation model with broadcasted content;
E) generate data broadcast stream by the segmentation data file relevant with broadcasted content, and based on carousel allocation model dispensing section dynamically, wherein relevant with broadcasted content data file comprises the content of current broadcast and the broadcasted content of having broadcasted of predetermined quantity; With
F) multiplexing broadcast content stream, broadcast program data stream and data broadcast stream, and multiplexing broadcast content stream, multiplexing broadcast program data stream and multiplexing data broadcast stream sent to digital radio broadcast network.
14. digital radio broadcast sending method as claimed in claim 13, wherein step b) comprises step:
B1), the data file relevant with broadcasted content generate multimedia broadcasting stream by being encoded; With
B2) by generation audio broadcast stream that the data file relevant with audio broadcasting content encoded.
15. digital radio broadcast sending method as claimed in claim 14 is wherein, at step b2) the audio broadcasting encoding process in add the title of the audio content of current broadcast to audio broadcast stream.
16. digital radio broadcast sending method as claimed in claim 13, wherein, be formed on the carousel allocation model that generates in the step d) in such a way: make when data file with have when the broadcasted content of nearer airtime of current point in time is associated distribution more section.
17. digital radio broadcast sending method as claimed in claim 13, wherein step e) comprises:
E1) make the data file relevant have the title identical with broadcasted content with the current broadcast content and the broadcasted content of having broadcasted; With
E2) by with the data file section of being divided into, and the dynamic assignment section generates data broadcast stream as follows: make when section with have when the broadcasted content of nearer airtime of current point in time is associated distribution more section.
18. a digital radio broadcast method of reseptance that is used to download the data file relevant with the broadcasted content that is applied to digital radio broadcast comprises step:
A) the digital radio broadcast signal is repeatedly used to broadcasting stream, broadcast program data and data broadcast stream;
B) the broadcasting stream after using is repeatedly decoded;
C) receive the selection data that the user wants the data downloaded file from the user;
D) tabulation of the data file of extracting the broadcast program data of generation after using repeatedly; With
E), and store institute's data recovered file by only from data broadcast stream, extracting according to user's selection data and have the section relevant and come the restore data file with the data file of user-selected broadcasted content same title.
19. want 18 described digital radio broadcast method of reseptances as right, wherein, step e) comprises step:
E1) discern title data relevant and identifier (ID) data by analyzing data broadcast stream with data file;
E2), then search for the data file that has with user-selected data file same title if send the selection data of downloading which data file about needs from the user; With
E3) the ID data extract of the data file that searches by the use section relevant with user-selected data file come the restore data file, and storage institute data recovered file.
20. want 19 described digital radio broadcast method of reseptances as right, also comprise step:
E4) answer user's request to play at step e3) in the data file of storing;
E5) answer user's the request will be at step e3) in the data file of storage send to the outside.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030075589A KR100597582B1 (en) | 2003-10-28 | 2003-10-28 | Digital Radio Broadcasting Transmitting/Receiving System and its Method for Download Service of Data Files relateted to Broadcasting Contents |
| KR1020030075589 | 2003-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1875591A true CN1875591A (en) | 2006-12-06 |
| CN100574289C CN100574289C (en) | 2009-12-23 |
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Family Applications (1)
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|---|---|---|---|
| CNB2004800318447A Expired - Fee Related CN100574289C (en) | 2003-10-28 | 2004-06-04 | Digital radio broadcast transmission/receiving system and method thereof |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1678896A4 (en) |
| KR (1) | KR100597582B1 (en) |
| CN (1) | CN100574289C (en) |
| WO (1) | WO2005041505A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118006A (en) * | 2013-01-06 | 2013-05-22 | 航天数字传媒有限公司 | Satellite user terminal and data receiving method thereof |
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| US7602698B2 (en) | 2004-03-02 | 2009-10-13 | Tellabs Operations, Inc. | Systems and methods for providing multi-layer protection switching within a sub-networking connection |
| KR100732843B1 (en) * | 2005-09-15 | 2007-06-27 | 한국방송공사 | Method for downloading contents in Digital Multimedia Broadcasting system and Digital Multimedia Broadcasting terminal, and Digital Multimedia Broadcasting system implementing the same |
| KR100661718B1 (en) * | 2005-12-14 | 2006-12-26 | 엘지전자 주식회사 | Apparatus and method for setting reserved recording using dgi in broadcasting website service |
| KR101154987B1 (en) * | 2006-01-03 | 2012-06-14 | 엘지전자 주식회사 | Method for providing dynamic sound service and system and broadcasting terminal thereof |
| US20070274341A1 (en) * | 2006-05-26 | 2007-11-29 | Tellabs Petaluma, Inc. | Method and system for managing software image downloads to ONTs over a PON network |
| CN100466519C (en) * | 2006-10-20 | 2009-03-04 | 中兴通讯股份有限公司 | Implementation method of downloading files at same time in broadcasting network |
| KR100830771B1 (en) * | 2006-11-07 | 2008-05-20 | 엘지전자 주식회사 | Receiving Apparatus for Digital Broadcasting |
| GB0625178D0 (en) * | 2006-12-18 | 2007-01-24 | Ubc Media Group Plc | Improvements relating to downloading data |
| KR20090002810A (en) * | 2007-07-04 | 2009-01-09 | 삼성전자주식회사 | Method for storing the broadcast on a data broadcast and a imaging apparatus having the same |
| KR101442923B1 (en) * | 2012-12-20 | 2014-09-23 | 하이버스 주식회사 | Receiver and method for receiving digital broadcasting signal |
| KR101539636B1 (en) * | 2013-12-19 | 2015-07-27 | 한국광성전자 주식회사 | System and method for broadcasting information storage |
| KR101539634B1 (en) * | 2013-12-19 | 2015-07-27 | 한국광성전자 주식회사 | System and method for searching information digital radio broadcast data using mobile coummunication terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1063796A3 (en) * | 1999-06-11 | 2005-07-13 | Matsushita Electric Industrial Co., Ltd. | Digital broadcasting apparatus for the transmission of additional information with a digital broadcast with adjustment of the bitrates of additional information data items |
| EP1148730A3 (en) * | 2000-03-31 | 2003-10-08 | Matsushita Electric Industrial Co., Ltd. | Data broadcast apparatus for controlling presentation timing of additional data with high precision |
| US20020010789A1 (en) * | 2000-05-04 | 2002-01-24 | Lord Frank H. | Broadcast multimedia delivery system |
| JP4240766B2 (en) * | 2000-06-26 | 2009-03-18 | パナソニック株式会社 | DATA STORAGE METHOD, RECEIVING DEVICE AND BROADCASTING SYSTEM IMPLEMENTING THE SAME |
| JP2002300063A (en) * | 2001-03-30 | 2002-10-11 | Minolta Co Ltd | Digital radio broadcast receiver and data transmission method in digital radio broadcast |
| JP2002300055A (en) * | 2001-03-30 | 2002-10-11 | Minolta Co Ltd | Digital radio broadcast receiver |
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2003
- 2003-10-28 KR KR1020030075589A patent/KR100597582B1/en not_active IP Right Cessation
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2004
- 2004-06-04 EP EP04773881A patent/EP1678896A4/en not_active Withdrawn
- 2004-06-04 WO PCT/KR2004/001342 patent/WO2005041505A1/en active Application Filing
- 2004-06-04 CN CNB2004800318447A patent/CN100574289C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118006A (en) * | 2013-01-06 | 2013-05-22 | 航天数字传媒有限公司 | Satellite user terminal and data receiving method thereof |
| CN103118006B (en) * | 2013-01-06 | 2016-01-27 | 航天数字传媒有限公司 | A kind of satellite user terminal and data receive method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1678896A4 (en) | 2010-08-04 |
| CN100574289C (en) | 2009-12-23 |
| WO2005041505A1 (en) | 2005-05-06 |
| KR100597582B1 (en) | 2006-07-07 |
| KR20050040395A (en) | 2005-05-03 |
| EP1678896A1 (en) | 2006-07-12 |
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