JP2006054596A - Data broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To freely register contents as a book mark and appropriately present contents by means of a book mark function. <P>SOLUTION: A receiving section 1 and a TS decoder 2 receive a plurality of broadcast contents. A mono-media decoder 5, a providing section 6, and a microcomputer 10 select one from among a plurality of the contents in response to a user operation and provide the selected contents. A book mark information storage section 9 stores procedure information for denoting procedures of user operations to provide target contents. The microcomputer 10 carries out user operations on behalf of the user, on the basis of the procedure information stored in the book mark information storage section 9, in response to it that the provision of the target contents is requested by the user. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a data broadcast receiving apparatus that receives a plurality of contents broadcast using digital broadcasting or the like and selectively presents one of these contents according to a user operation.

  In this type of data broadcast receiving apparatus, the identification information of the content once presented is stored as a bookmark, and when presenting the above content next, the content is directly selected based on the stored identification information. It is common to provide a bookmark function.

  However, the bookmark function for storing identification information in this way has the following problems.

  (1) When one content is composed of a plurality of pages, only the top page is presented by the bookmark function, and other pages cannot be presented directly.

  (2) Even if content that has been linked to other content in the past is set not to be presented to general users by releasing the above link, it is selected directly by the bookmark function. Will be presented with the content.

  (3) Some content changes the presentation content based on the value set in the content of the transition source. For example, when a variable is set according to the reception area in the transition source content, and the transition destination content describes a script that presents information for each reception area based on the above variable There is. In such a case, if the transition destination content is directly selected by the bookmark function, a variable for the transition destination content cannot be obtained, and normal content presentation cannot be performed.

  (4) In the case of ARIB STD-B24, which is a data broadcasting standard for digital broadcasting in Japan, only component-based access is permitted (see Non-Patent Document 1, for example). For this reason, many contents in the component cannot be selected by the bookmark function.

On the other hand, in data broadcasting, a large number of contents are broadcast cyclically on one channel. For this reason, even if the content is directly selected by the bookmark function, it may take time until the content can be received, which may increase the waiting time until the content is presented.
ARIB STD-B24 “Data Broadcast Coding and Transmission Methods in Digital Broadcasting”, Japan Radio Industry Council

  As described above, since the conventional bookmark function directly selects content based on the stored identification information, there is a limit to the content that can be registered as a bookmark, and appropriate content presentation can be performed. There was a bug that did not exist.

  In addition, it may take a long time until the content can be presented after the content is selected.

  The present invention has been made in view of such circumstances, and the purpose of the present invention is firstly to allow free content to be registered as bookmarks, and to appropriately present content by the bookmark function. An object of the present invention is to provide a data broadcast receiving apparatus capable of

  A second object of the present invention is to provide a data broadcast receiving apparatus capable of presenting contents at high speed.

  In order to achieve the first object, the first aspect of the present invention is a receiving means for receiving a plurality of contents to be broadcast, and selecting and presenting one of the plurality of contents according to a user operation. Presenting means; means for storing procedure information indicating a procedure of the user operation for causing the presentation means to present the target content; and the procedure information in response to a request for presentation of the target content by the user. The data broadcast receiving device includes a proxy means for proxying the user operation based on the above.

  In order to achieve the second object, the second aspect of the present invention is a receiving means for receiving a plurality of broadcast contents, a means for storing identification information of the contents registered as bookmarks, and a primary storage of the contents. The data broadcast receiving apparatus includes: a storage unit that stores the content corresponding to the stored identification information; and a unit that writes the content to the storage unit when the reception unit receives the content.

  According to the first aspect of the present invention, it is possible to register a free content as a bookmark, and it is possible to appropriately perform content presentation by the bookmark function.

  Further, according to the second aspect of the present invention, it becomes possible to present content at high speed.

  A digital broadcast receiver including a data broadcast receiving apparatus according to an embodiment of the present invention will be described below with reference to the drawings. Note that the digital broadcast receiver according to the present embodiment is adapted to data broadcasting compliant with ARIB STD-B24.

FIG. 1 is a block diagram showing a configuration of a digital broadcast receiver according to the present embodiment.
The digital broadcast receiver includes a receiving unit 1, a TS decoder 2, an AV decoder 3, a data storage unit 4, a monomedia decoder 5, a presentation unit 6, a user operation input unit 7, a user operation extraction unit 8, and a bookmark information storage unit 9. And a microcomputer 10.

  The receiving unit 1 receives an MPEG2 transport stream broadcast by radio from a broadcast station (not shown). The TS decoder 2 separates the MPEG2 transport stream into a desired AV stream and a data broadcast stream. The TS decoder 2 outputs the AV stream to the AV decoder 3 and the data broadcast stream to the data storage unit 4.

  The AV decoder 3 reproduces video data and audio data from the AV stream. The AV decoder 3 outputs the reproduced video data and audio data to the presentation unit 6. The data storage unit 4 stores the above data broadcast stream under the control of the microcomputer 10. The mono media decoder 5 reads the data broadcast stream from the data storage unit 4 under the control of the microcomputer 10. The mono media decoder 5 decodes screen elements such as images, characters, or sounds from the read data broadcast stream and outputs them to the presentation unit 6. The presentation unit 6 creates and outputs a presentation screen and a presentation voice from various input information. The presentation unit 6 includes a display and a speaker, for example.

  The user operation input unit 7 includes a plurality of key switches and the like, and inputs a user operation and outputs a user operation signal. The user operation extraction unit 8 monitors a user operation input by the user operation input unit 7 and extracts the procedure. The bookmark information storage unit 9 stores bookmark information for selecting a bookmark registered content.

  The microcomputer 10 comprehensively controls each part of the digital broadcast receiver based on the user operation signal. The microcomputer 10 analyzes and executes the document data of the data broadcast stored in the data storage unit 4 and decodes the data broadcast screen. This data broadcast screen is also sent to the presentation unit 6 and presented by the presentation unit 6. Further, the microcomputer 10 has a function of creating bookmark information based on the output of the user operation extraction unit 8. The microcomputer 10 has a function of caching content data corresponding to URI (Uniform Resource Locators) included in the bookmark information in the data storage unit 4. The microcomputer 10 has a function of controlling each unit on the assumption that a user operation described in the bookmark information stored in the bookmark information storage unit 9 has been performed.

Next, the operation of the digital broadcast receiver configured as described above will be described.
When the d button provided in the user operation input unit 7 is pressed, the microcomputer 10 acquires content corresponding to the startup screen of the data broadcasting being received according to the ARIB regulations, and causes the presentation unit 6 to display the startup screen. . Thereafter, the microcomputer 10 obtains and displays another content as necessary based on information (such as a link destination URI) indicated by the content being presented on the screen and a user operation, while the user aims. Select content.

FIG. 2 is a diagram showing an example of the data structure and screen transition of data broadcasting.
Data broadcasts are transmitted as one or more components. Each component includes one or more BML documents. This BML document is data representing one content. Since data updates occur on a component basis, it is common to divide components for each content that you want to update at the same time. For example, components are configured for each content type such as news or weather forecast.

  FIG. 2 shows three components C1, C2, and C3 that are being broadcast. The component C1 is a default component including a document that is reproduced by default when the data broadcasting service is selected, and includes a document F1 and a document F2. The document F1 is content corresponding to a data broadcast startup screen. Document F2 is content linked to document F1. The component C2 includes a document F3 and a document F7. The document F3 is content including a page p1 linked to the document F1 and a page p2 linked to the page p1 and whose screen configuration is changed by a script. The document F7 is content that has been linked to the document F3 in the past, but is not currently linked to any document. The component C3 includes a document F4, a document F5, and a document F6. Document F4 is content linked to document F1. The document F5 is content linked to the document F4. The document F6 is content linked to the document F5.

  Now, for example, assume that the user is about to view page p2 of document F3. In this case, the user first presses the d button. Then, the microcomputer 10 acquires the document F1 that is the startup document of the default component C1, and causes the presentation unit 6 to display the startup screen. On the startup screen, as shown in FIG. 2, an instruction to shift to document F3 is assigned to the left button, and an instruction to transfer to document F4 is assigned to the right button. Therefore, the user presses the right button and then presses the enter button. The microcomputer 10 acquires the document F3 based on the URI associated with the pressed right button, and causes the presentation unit 6 to display the presentation screen of the document F3. The presentation screen of document F3 is initially page p1. As shown in FIG. 2, an instruction to move to document F1 is assigned to the left button and an instruction to move to page p2 is assigned to the right button on page p1 of document F3. Therefore, the user presses the right button and then presses the enter button. In response to the right button being pressed, the microcomputer 10 changes the presentation screen displayed on the presentation unit 6 to the page p2.

  FIG. 3 is a flowchart showing a processing procedure for the user operation extraction unit 8 in FIG. 1 to automatically create link information. When the operation as described above is performed, the user operation extraction unit 8 executes the process shown in FIG. 3 in parallel with this.

  In step Sa1, the user operation extraction unit 8 clears the reference URI, the transition URI, and the operation procedure.

  In step Sa2, the user operation extraction unit 8 monitors user operations such as the above-described button presses, and determines what operation has been performed if such operation has been performed. In step Sa3, the user operation extraction unit 8 checks whether or not the startup screen (document F1, page p1 of document F3, document F4, etc.) of each component has been displayed according to the determined user operation. If the startup screen is displayed, the user operation extraction unit 8 proceeds from step Sa3 to step Sa4.

  In step Sa4, the user operation extraction unit 8 sets the URI of the newly displayed document as the reference URI. Subsequently, in step Sa5, the user operation extraction unit 8 clears the transition URI and the operation procedure recorded so far. Thereafter, the user operation extraction unit 8 proceeds to Step Sa6.

  If the start-up screen is not displayed, the user operation extraction unit 8 proceeds from step Sa3 to step Sa8. In step Sa8, the user operation extraction unit 8 adds the user operation extracted in step Sa2 to the operation procedure. Thereafter, the user operation extraction unit 8 proceeds to Step Sa6.

  In step Sa6, the user operation extraction unit 8 confirms whether the URI of the newly displayed document has already been registered in the transition URI. If not registered, the user operation extraction unit 8 proceeds from step Sa6 to step Sa7. In step Sa7, the user operation extraction unit 8 adds the displayed URI to the transition URI. Thereafter, the user operation extraction unit 8 proceeds to Step Sa9. If the displayed URI has already been registered as the transition URI, the user operation extraction unit 8 proceeds from step Sa6 to step Sa9.

  In step Sa9, the user operation extraction unit 8 checks whether bookmark registration is requested for the current display screen. If the bookmark registration is not requested and another user operation is performed, the user operation extraction unit 8 repeats the processes after step Sa2. However, if bookmark registration is requested, the user operation extraction unit 8 proceeds from step Sa9 to step Sa10.

  In step Sa <b> 10, the user operation extraction unit 8 outputs the reference URI, transition URI, and operation procedure to the microcomputer 10.

  The microcomputer 10 creates bookmark information including the reference URI output from the user operation extraction unit 8 and the link information including the operation procedure and the transition URI, and writes the bookmark information in the bookmark information storage unit 9. .

FIG. 4 is a diagram showing an example of the data structure of bookmark information stored in the bookmark information storage unit 9 in FIG.
The bookmark information storage unit 9 can store a plurality of bookmark information as shown in FIG. Each bookmark information includes a registration page title, link information, and a transition URI. The bookmark information BM1 in FIG. 4 is bookmark information created based on the specific user operation described above.

  Now, assume that one of the bookmark information stored in the bookmark information storage unit 9 is designated by the user. In this case, the microcomputer 10 first obtains a document of the reference URI indicated in the designated bookmark information. Then, for this document, the operation procedure shown in the designated bookmark information is traced. As a result, the target document is acquired by following the link from the reference URI and displayed. If channel information such as network ID, transport ID, service ID, etc. is recorded in the information of the reference URI and the channel selection operation is performed for the channel information when the bookmark is selected, it is registered as a bookmark. Data broadcast pages other than the channel currently being received can also be displayed.

  The document of the reference URI and the document acquired in the middle may be displayed by the presentation unit 6 or may not be displayed. If it is not displayed, the time for decoding those documents can be shortened, and the time until the target page is displayed can be shortened.

  By the way, since each document is broadcast cyclically, these documents are sequentially received by the receiving unit 1. When the document received by the receiving unit 1 is a document of the reference URL or transition URL included in the bookmark information stored in the bookmark information storage unit 9, the microcomputer 10 stores the document in the data storage unit 4. Cache. If the document to be acquired when displaying the document based on the bookmark information as described above is cached in the data storage unit 4, the microcomputer 10 acquires the cached document. Thereby, the waiting time for document acquisition can be shortened, and the time until the target page is displayed can be shortened.

  As described above, according to the present embodiment, even when one content is composed of a plurality of pages as in the document F3 in FIG. 2, the display of pages other than the top page of the content is automatically performed. Can be done.

  Further, according to the present embodiment, when the document F7 in FIG. 2 is linked to the document F3, the bookmark information registered for the document F7 is released from the link between the document F3 and the document F7 as shown in FIG. Even if it is specified later, the document F7 cannot be displayed because the document F3 cannot be traced to the document F7 according to the bookmark information. Therefore, the document whose link has been released will not be displayed illegally.

  Further, according to the present embodiment, a script “set variable Ureg [1] = K” is described in the document F4 in FIG. 2, and the document F5 returns to the startup screen unless “Ureg [1] is K”. ”Is described, even if bookmark information for the document F5 is specified, since the document F5 is traced from the document F4, the variable is normally transferred between the document F4 and the document F5. The document F5 can be displayed normally.

  Further, according to the present embodiment, other than the startup document of each component is not acquired directly, but other documents are always traced. Therefore, the default of ARIB STD-B24 is satisfied. In other words, bookmarks can be freely registered even though the device is compliant with ARIB STD-B24.

This embodiment can be variously modified as follows.
The link information in the bookmark information may be only an operation procedure as shown in FIG. Alternatively, as shown in FIG. 6, the transition URI may not be included in the bookmark information.
In the link information, the operation procedure may record a browser control event generated by the key input instead of using the key code by the user input. For example, in the document F1 of FIG. 2, the operation for selecting and determining the “go to F3” button is “right key” + “decision key” in the case of a key code, but in the case of a browser control event, click (“go to F3”). Button ID).
The link information may be input by the user without being automatically created.
The present invention can also be applied to a data broadcast receiving apparatus adapted to a data broadcast different from the data broadcast compliant with ARIB STD-B24.
The presentation of content may be a screen reading by voice synthesis.
It is effective to cache the URI document stored in the bookmark information regardless of the format of the bookmark information. That is, for example, a URI document registered for a conventional general bookmark function may be cached.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

The block diagram which shows the structure of the digital broadcast receiver which concerns on one Embodiment of this invention. The figure which shows an example of the data structure of data broadcasting, and a screen transition. The flowchart which shows the process sequence for the user operation extraction part 8 in FIG. 1 to produce link information automatically. The figure which shows the example of a data structure of the bookmark information memorize | stored in the bookmark information storage part 9 in FIG. The figure which shows the modification of the data structure of the bookmark information memorize | stored in the bookmark information storage part 9 in FIG. The figure which shows the modification of the data structure of the bookmark information memorize | stored in the bookmark information storage part 9 in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Reception part, 2 ... TS decoder, 3 ... AV decoder, 4 ... Data storage part, 5 ... Monomedia decoder, 6 ... Presentation part, 7 ... User operation input part, 8 ... User operation extraction part, 9 ... Bookmark information Storage unit, 10... Microcomputer.

Claims (6)

Receiving means for receiving a plurality of broadcast contents;
Presenting means for selecting and presenting one of the plurality of contents according to a user operation;
Means for storing procedure information indicating a procedure of the user operation for causing the presentation means to present the target content;
A data broadcast receiving apparatus, comprising: proxy means for substituting the user operation based on the procedure information in response to a request for presentation of the target content by a user.   The data broadcast receiving apparatus according to claim 1, further comprising a unit that monitors a user operation procedure performed to cause the presentation unit to present the content and creates the procedure information.   3. The data broadcast receiving apparatus according to claim 1, wherein the presenting unit does not present content other than the target content when the user operation is performed by the proxy unit. 4. The procedure information indicates identification information of reference content in which bookmarks are permitted, and a procedure of the user operation for acquiring the target content from the reference content,
4. The agent according to claim 1, wherein the proxy unit substitutes the user operation from the reference content after acquiring the reference content based on the identification information. 5. Data broadcasting receiver. The procedure information includes at least one of identification information of the target content and identification information of intermediate content acquired during the user operation procedure until the target content is presented,
Storage means for temporarily storing the content;
5. The apparatus according to claim 1, further comprising: a unit that writes the content in the storage unit when the content corresponding to the identification information indicated in the procedure information is received by the receiving unit. The data broadcast receiving apparatus according to claim 1. Receiving means for receiving a plurality of broadcast contents;
Means for storing identification information of the content registered as a bookmark;
Storage means for temporarily storing the content;
A data broadcast receiving apparatus comprising: means for writing the content in the storage means when the content corresponding to the stored identification information is received by the receiving means.

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