WO2006109359A1 - Procede de mise a jour de contenu de diffusion et programme de mise a jour - Google Patents

Procede de mise a jour de contenu de diffusion et programme de mise a jour Download PDF

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Publication number
WO2006109359A1
WO2006109359A1 PCT/JP2005/007037 JP2005007037W WO2006109359A1 WO 2006109359 A1 WO2006109359 A1 WO 2006109359A1 JP 2005007037 W JP2005007037 W JP 2005007037W WO 2006109359 A1 WO2006109359 A1 WO 2006109359A1
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WO
WIPO (PCT)
Prior art keywords
update
content
content data
broadcast
data
Prior art date
Application number
PCT/JP2005/007037
Other languages
English (en)
Japanese (ja)
Inventor
Satoko Miki
Yukio Yokoyama
Masashi Hidai
Yuka Fujita
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to PCT/JP2005/007037 priority Critical patent/WO2006109359A1/fr
Publication of WO2006109359A1 publication Critical patent/WO2006109359A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests
    • 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
    • H04H60/25—Arrangements for updating broadcast information or broadcast-related information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234345—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26291—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for providing content or additional data updates, e.g. updating software modules, stored at the client
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
    • H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845—Structuring of content, e.g. decomposing content into time segments

Definitions

  • the present invention relates to a broadcast content update method and an update program for updating the content of broadcast content resources in server-type broadcast.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2004-235928
  • Patent Document 2 Japanese Patent Laid-Open No. 2001- 211431
  • the broadcast content update method proposed in the above-mentioned document adopts a method of updating using a module version that is a unique number in a data event being broadcast, so that data There is a problem that the content cannot be updated after the broadcast when the event period disappears.
  • only documents with a tree structure can be updated with scripts.
  • the present invention has been made to solve the above-described problems, and the receiving system side
  • the purpose is to obtain a broadcast content update method and its update program that can automatically update the broadcast content data stored in step 1 after the broadcast, regardless of the file format under the broadcast's intention. Disclosure of the invention
  • the broadcast content update method is a broadcast content update method for updating content data that is broadcast by a transmission system and that is also received and stored in a reception system and that also has content for identifying information that identifies the content.
  • the transmission system creates content to update any content in the content data that has already been broadcast and its update information data, and at that time, the created update data.
  • An update program is created and transmitted based on the identification information of the content data for use, and the receiving system determines that the content data to be updated is contained in the content data accumulated during the previous broadcast based on the received update program. Whether the received update program has identification information and stored content data identification information Judgment Te, in which the content data to be updated is updated in the update Conte Nddeta accumulate when the updated co Ntenddeta was present.
  • the content data can be automatically updated according to the intention of the broadcast provider and regardless of the file format. Since the content data has identification information such as a content identifier, the update program uses the identification information to identify the content data stored on the receiving system side even after broadcasting. Therefore, it is possible to update the content data after storage.
  • FIG. 1 is a block diagram showing a system configuration for realizing a broadcast content update method according to Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart showing a processing procedure by the update program according to the first embodiment of the present invention.
  • FIG. 3 is an explanatory view showing the definition of a broadcast extension function “getSTBContentList” according to the first embodiment of the present invention.
  • FIG. 4 shows an extension function for broadcasting “Embodiment 1”
  • FIG. 5 is an explanatory diagram showing the definition of a broadcast extension function “replaceContent” according to the first embodiment of the present invention.
  • FIG. 6 is an explanatory diagram showing a description example of the update program according to the first embodiment of the present invention.
  • FIG. 7 is an explanatory diagram showing the definition of a function “addContent ()” for performing a new content insertion according to Embodiment 1 of the present invention.
  • FIG. 8 is a block diagram showing a system configuration for realizing a broadcast content update method according to Embodiment 2 of the present invention.
  • FIG. 9 is an explanatory diagram showing the definition of a broadcast extension function according to the second embodiment "g EtContentDatafromServer" of the present invention.
  • FIG. 10 is an explanatory diagram showing a DSMCC section structure of a transmission method according to Embodiment 3 of the present invention.
  • FIG. 11 is an explanatory diagram showing the structure of the private section of the transmission method according to Embodiment 3 of the present invention.
  • FIG. 12 is an explanatory diagram showing an example of a message screen according to the fourth embodiment of the present invention.
  • FIG. 1 is a block diagram showing the configuration of a transmission system and a reception system for realizing a broadcast content update method according to Embodiment 1 of the present invention.
  • a transmission system 100 that transmits broadcast content and the like, and a reception system 200 that receives, stores, and updates the broadcast content 105 and the like that are also transmitted by the transmission system 100 are shown.
  • the power using the word “system” means a set of individual functions, and is not necessarily limited to a single device that contains all the constituent functions.
  • the broadcast content 105 is data transmitted in at least one broadcast, and is composed of content data of a broadcast program divided by time, for example.
  • the content data includes identification information for identifying the content of the program itself (content) and content such as a content identifier.
  • the update part 102 is an update content data created for the broadcast side to change any of the content data constituting the broadcast content 105 (content data to be updated) after the broadcast ends.
  • the data is provided with identification information such as a content identifier. Further, the content data to be updated and the identification information of the update part 102 are associated with each other with the same or the same part. Therefore, the update processing of the broadcast content is to replace the update portion (or update content data) 102 with the content data to be updated.
  • the update program 104 is a program that is transmitted from the transmission system 100 to the reception system 200 in a broadcast format.
  • the update program 104 checks the content data to be updated received and accumulated in the reception system 200 during the previous broadcast, and the update part 102 given later. It has an update processing module that executes the update process to be replaced with.
  • the update program 104 is transmitted and received in a form including the update part 102.
  • the storage unit 101 is means for storing the broadcast content 105, its updated part 102, etc. in advance before transmission.
  • the update program creation unit 103 is a means for creating an update program 105 for performing update processing using the update part 102 on the receiving system 200 side based on the update part 102.
  • the transmission unit 106 is means for transmitting the broadcast content 105 and the update program created by the update program creation unit 103.
  • the receiving unit 201 is a means for receiving the broadcast content 105 and the update program 104 transmitted by the transmitting system 100.
  • the accumulated data extracting unit 202 is a means for extracting content data to be accumulated from the broadcast content 105 received by the receiving unit 201.
  • the accumulation processing unit 203 is means for accumulating the extracted content data in the accumulation unit 206 and creating a content list at that time.
  • Update program extraction unit 204 Is means for extracting the update program 104 from the data received by the receiving unit 201.
  • the update program processing unit 205 examines the content data to be updated from the data stored in advance in the storage unit 206, and changes the update target content data to the update part 102 for update. It is means to do.
  • the accumulation unit 206 is a means for storing the content data output from the accumulation processing unit 203, the content list, and the content data updated by the update program processing unit 205.
  • the broadcast content 105 stored from the storage unit 101 is read and transmitted by the transmission unit 106.
  • the transmitted broadcast content 105 is received by the receiving unit 201 of the receiving system 200.
  • the storage data extraction unit 202 extracts the content data of the program to be stored, for example, the program reserved for recording by the user, in the receiving system 200.
  • the extracted content data is stored in the storage unit 206 by the storage processing unit 203 associating the content data file with identification information such as a content identifier.
  • the update portion 102 is stored in the storage unit 101.
  • the update program creation unit 103 creates the update program 104 based on the update part 102 read from the storage unit 101.
  • the description format of the update processing module of the update program 104 may be a binary format or a script.
  • ECMA European Computer Manufacturers' Association
  • JAVA registered trademark
  • ECMA ⁇ script is extended for digital broadcasting and is defined by BML (Broadcasting Markup Language). You can also use an ECMA script that includes an extension function for broadcasting.
  • the update program 104 created in this way is transmitted to the reception system 200 side by the transmission unit 106.
  • the update program extraction unit 204 extracts the update program 104 from the received data at the reception unit 201 and passes it to the update program processing unit 205.
  • Update program In the program processing unit 205 the update processing module of the extracted update program 104 performs update processing according to the procedure shown in FIG.
  • step ST1 content data stored in the storage unit 206 is acquired (step ST1), and it is determined whether there is content data to be updated by the update program 104 (step ST2).
  • This determination is, for example, a process of acquiring a content list in which stored content data files and content identifiers are associated, and checking for the presence of a content identifier or the like that includes the updated portion 102 in the list.
  • step ST3 the content data to be updated in the storage unit 206 is rewritten and updated by the update portion 102 included in the update program 104 (step ST3). In this case, the content list that associates the content data file and the content identifier is also updated.
  • step ST2 it is determined in step ST2 that the content data to be updated is not included, the process ends without doing anything.
  • Figures 3, 4 and 5 show the newly defined script functions as broadcasting extension functions.
  • the update module described using these functions is shown in Fig. 6.
  • Each function and program is described below. However, the function name is shown for convenience, and it is not always necessary to use such a function name.
  • the functions of each function may be defined by other functions, and some of these functions may be defined as a single function.
  • “GetSTBContentList () j” shown in FIG. 3 is a function for acquiring a content list of content stored in the storage unit 206 of the receiving system 200. This content list is created by the storage processing unit 203 when content data is stored. The stored content data identifier returned as a return value is included in the content data of the broadcast content 105 at the time of broadcasting.
  • the ability to acquire content data stored in the storage unit 206 as a content list may be a function to acquire each stored content data itself.
  • storage Each piece of content data After obtaining it, it will be judged whether it should be updated.
  • “GetContentDatafromRenewalProgram ()” shown in FIG. 4 is a function for obtaining the update part 102 included in the update program 104 received by the receiving system 200.
  • the update part 104 is updated from the update program 104. This is a byte string of content data obtained by separating 102.
  • “replaceContent (;)” shown in FIG. 5 is a function that replaces and updates the updated content data with the update target content data stored in the storage unit 206.
  • the argument “cont en tId” is the content identifier of the updated content data
  • FIG. 6 shows an example of the update program.
  • the update program shall pass the content identifier (newContentld) of the content data to be updated as an existing argument.
  • the update program first acquires a content list of content data stored in the receiving system by “getSTBContentList ()”. Since the list also has content identification U child power, the content identifier in the list is compared with the content identifier ( new ContentId) of the update program 104. Is shown in Figure 4.
  • the update part 102 included in the update program 104 is acquired by “getContentDatafromRenewalProgram ()”, and this acquired data is replaced with the update target content data in the storage unit 206 using “replaceContent (;)” in FIG. .
  • the above description may be performed by another method that is related to an update process in which the data content that has already been stored is replaced with the update part 102.
  • the update portion 102 included in the update program 104 is newly stored in the storage unit 206, and the content Try to update the list.
  • the power receiving system 200 described above for the update processing by the update program in the receiving system 200 can be considered to have a function of reproducing and viewing the content data stored in the storage unit 206. Their functions are generally known Therefore, explanation is omitted here.
  • the update part (update content data) is transmitted after the broadcast
  • an update program for the data is created by the transmission system.
  • the update program is operated on the receiving system, and the content data to be updated is updated in the update part. Therefore, the content data can be updated on the receiving side in accordance with the intention of the broadcasting side.
  • the update program can be used even after the end of the broadcast.
  • the content data has identification information such as a content identifier, so that the content data can be specified even after storage on the receiving system side. Therefore, the content data after storage can be updated.
  • the receiving system can automatically update the content data by using the update program created and transmitted in relation to the update part.
  • the update program in a script, it is possible to describe the update program regardless of the system configuration of the receiving system. Furthermore, by describing the update program in BML, the program update operation can be performed as part of the content data, and a reception system that guarantees uniform operation within the reception system can be configured. it can.
  • FIG. 8 is a block diagram showing a system configuration for realizing a broadcast content updating method according to Embodiment 2 of the present invention.
  • functional parts that are the same as or correspond to those in FIG. 1 are given the same reference numerals, and in principle, descriptions of those parts are omitted.
  • the update part notification information 107 and the update data server 300 are newly added to the configuration of FIG. 1, and the update part 102 is not included in the update program 104 and is provided outside. Put it in the f row!
  • the update data server 300 is means for storing the update part 102 that is the content data updated in the transmission system 100 and distributing the corresponding update part 102 in response to a request from the reception system 200.
  • the update part notification information 107 is information including identification information for identifying content such as a content identifier of the update part 102.
  • the update portion notification information 107 is stored in the storage portion 101 together with the update portion 102.
  • the update program creation unit 103 creates the update program 104 based on the update part notification information 107.
  • the update part 102 is sent to the update data server 300 and stored therein.
  • the update program processing unit 205 has content data to be updated based on the update processing module of the update program in the storage unit 206. Find out if you want to. If there is content data to be updated, the corresponding update portion 102 is acquired from the update data server 300 on the external communication.
  • the update processing module capability 3 ⁇ 4 ML is used for description, for example, the broadcast extension function defined in FIG. 9 is used.
  • the function “getContentDatafromServer () j obtains the update part 102 using the content identifier and the URL of the update data server 300.
  • the update program processing part 205 obtains the update part 102
  • the update part 102 stores the update part 102 in the storage part 206. Update accumulated content data to be updated.
  • the update part is not included in the update program and is transmitted through another communication route, so that the update program is compared with the case of the first embodiment.
  • the amount of data it occupies can be greatly reduced, and the transmission bandwidth can be reduced accordingly, and even when the updated part is large content that includes video, updates from broadcast stations can be easily performed.
  • Figure 10 shows the DSMCC (Digital Storage Media)
  • the structure of the (Command and Control) section is shown.
  • Figure 11 shows the definition of the data structure of the private section defined in the DSMCC section! /, And the update program data is placed in the “renewal_module”.
  • the transmission system 100 transmits the update program 104 created by the update program creation unit 103 from the transmission unit 106.
  • the transmission unit 106 converts the update program into the “private_data” structure shown in FIG. 11, and inserts it into the DSMCC section as “privete_data”.
  • the DSMCC section transmission method the same method as that used for digital broadcasting such as BS, CS, and terrestrial can be applied.
  • the transmitted DSMCC section data is received by the receiving unit 201 on the receiving system 200 side, and then extracted by the update program extracting unit 204.
  • the update program extraction unit 204 extracts the DSMCC section data, and selects one having “table_id” of “0x3E”.
  • the “renewal_module” portion is extracted from the selected data and used as an update program.
  • FIG. 12 is an explanatory diagram showing an example of a message screen for requesting user permission when updating content according to the fourth embodiment of the present invention.
  • the fourth embodiment an example of a method for obtaining user permission when an update program updates content will be described.
  • the update program processing unit 205 performs the update operation in FIG. A message as shown is presented to the user by display means (not shown). The user sees this message, determines whether or not the accumulated content data to be updated can be updated, and inputs the instruction. The update program processing unit 205 executes or cancels the update according to the user's instruction input.
  • the update program processing unit performs the update target copy.
  • a message for inquiring whether update is possible or not is displayed on the display means in advance, and update processing is performed only when there is permission from the user. Can be renewed without compromising the right to use.
  • the broadcast content update method enables the broadcast content data stored on the receiving system side to be automatically updated after broadcasting regardless of the file format under the intention of the broadcast side. Therefore, it will contribute to the future development of server-type broadcast reception systems.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)

Abstract

L’invention concerne un système de transmission qui créé des données de contenus mises à jour destinées à modifier quelconque donnée de contenus déjà diffusée. Dans cette invention, selon un identificateur de données de contenus mises à jour, un programme de mise à jour est créé et transmis. Un système de réception reçoit le programme mis à jour et juge si, selon le programme de mise à jour et l’identificateur de données de contenus accumulées, l’objet à mettre à jour existe dans les données de contenus accumulées. Dans l’affirmative, ces données de contenus sont mises à jour et deviennent alors des données de contenus mises à jour.
PCT/JP2005/007037 2005-04-11 2005-04-11 Procede de mise a jour de contenu de diffusion et programme de mise a jour WO2006109359A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/007037 WO2006109359A1 (fr) 2005-04-11 2005-04-11 Procede de mise a jour de contenu de diffusion et programme de mise a jour

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/007037 WO2006109359A1 (fr) 2005-04-11 2005-04-11 Procede de mise a jour de contenu de diffusion et programme de mise a jour

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JP2012230464A (ja) * 2011-04-25 2012-11-22 Digital Eye Co Ltd 記録媒体

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