KR20090072609A - System for content based ui and method for operating the same - Google Patents

Abstract

A system for realizing a moving picture content based UI and a method for operating the same are provided to enable a user to access a downloaded moving picture conveniently. An IP broadcasting server creates and stores metadata(S71), and a user selects a certain moving picture from a displayed electronic program guide and requests the reproduction(S72,S73). A set-top box requests the download of the correspondent moving picture from the IP broadcasting server(S74). The IP broadcasting server downloads the correspondent moving picture based metadata by searching the correspondent moving picture(S75,S76).

Description

System for content-based screen interface implementation and its implementation {System for content based UI and method for operating the same}

The present invention relates to a system for implementing a video content-based screen interface and a method of implementing the same.

Currently, digital TV broadcasting provides better service to users by transmitting clear HD picture quality and sound quality closer to CD level than conventional analog broadcasting, and according to future digital broadcasting plan, TV and digital TV set-top box for receiving digital broadcasting (STB) ; Set-Top-Box) has been actively developed. In addition, the Electronic Program Guide (EPG) provides information that makes it easy to use a digital TV even without a user.

In addition, recently, IP TV is being activated and serviced, IP TV can be installed by watching the set-top box (STB) on the TV receiver to download a variety of broadcast programs (video) through a high-speed Internet network. You can also watch movies on TV without renting videos or DVDs, and enjoy various services such as games and karaoke. In addition, various application supplementary services such as home networking, e-education, and home banking are provided.

In the case of the IP TV broadcasting, the electronic program guide (EPG) is merely provided to viewers to select a plurality of channels and program videos which are broadcast in real time through the set-top box (STB) like the digital TV broadcasting. Therefore, the user can only view the channel and program information displayed on the on-screen OSD (On Screen Display) and select the channel and program to be watched.

However, when a user wants to download and play a requested video, there is a problem that detailed guidance on detailed video information, section playback, and the like cannot be performed in the conventional STB user interface. For example, when the user wants to watch from a specific intermediate point instead of the first point of the video, there is no user interface for this selection.

The present invention provides a user interface means that the user can easily access the downloaded video.

The present invention stores a video for each program, the IP broadcasting server having the metadata of recording the information of the video in the form of markup language, the video requested from the IP broadcasting server and the metadata of the video is downloaded, Link page list showing the bookmark area linking section playback using the metadata information, the broadcasting information area linking the information of the video, and the shopping information area linking the advertisement assigned to the video on one screen. It includes a set-top box to create and display on the IP TV.

The IP broadcasting server includes a metadata storage database storing content-based metadata recording basic information, bookmark information, video information, and shopping information for each video. The metadata storage database may further include EPG metadata that records information about an electronic program guide having video information for each channel.

The content-based metadata includes a content-based header and a content-based body, and the content-based header includes a schema reference version (XsdVesion), metadata creation date (createDate), valid period (AvailablePeriod), and metadata update period ( RefreshCycle), and the content-based body includes the basic information, the bookmark information, the video information, and the shopping information.

The present invention provides a first step in which a set-top box requests an IP broadcasting server to download a video requested from a user, and the IP broadcasting server transmits the requested video to the set-top box, and further includes basic information of the video. On the basis of the second step of transmitting the content-based metadata in the form of markup language (XML) containing bookmark information, video information, shopping information to the set-top box, based on the content-based metadata received by the set-top box, A link page list showing a bookmark area linking section playback, a broadcasting information area linking information of the video, and a shopping information area linking advertisements assigned to the video on one screen and displaying the link page list on one screen; Includes three steps.

The link page list is displayed on a screen before playing a video, and the bookmark information is information for recording bookmark information for playback of each section of the video, and includes a bookmark generation type, index information, a bookmark title, and a related thumbnail image.

The video information is information recording the program introduction of the video, video title, index information, plot, planning intention, crew, character information, location, OST, related thumbnail image, link information of the section video image, event information Include.

The shopping information is information on an advertisement assigned to the video, and includes an advertisement title, a product name, index information, a manufacturer, a website address of a manufacturer, a price, an advertisement image, and link information of the advertisement.

The link page list further includes a video full playback region in which a link for playing the entire video from the beginning is set.

The bookmark area links thumbnail images for each section of the video to be played from the corresponding section upon selection.

If there is a specific bookmark setting using the displayed bookmark area, the content-based metadata for the set bookmark point, the image of the bookmark point, and simple tagging information is uploaded to the IP broadcasting server to share the content-based metadata. It is characterized by.

The broadcast information area provides event information related to the video, and when a specific item is selected, the broadcast information area moves to a page displaying related information of the video at the corresponding location.

The present invention provides a method of setting PVR recording schedule information including a program ID, a channel ID, a recording start time, and a recording end time, and downloading the latest EPG metadata before the scheduled recording start time arrives. Updating and correcting the broadcast start time of the program, performing PVR recording for the corresponding program when the recording start time arrives, storing the actual recording start time, and correcting the broadcast start time and the actual recording start time. Calculating a difference between the PVR offset and storing the difference as a PVR offset, and correcting the playback time with reference to the PVR offset when the PVR recording recorded by the PVR is requested to play. .

According to the present invention, a link page list showing a bookmark area, a broadcast information area, and a shopping information area as one screen is generated and displayed on the IP TV, so that the user can easily use the related information of the video.

Hereinafter, the detailed description of the preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the following description of the reference numerals to the components of the drawings it should be noted that the same reference numerals as possible even if displayed on different drawings.

1 is a conceptual diagram for implementing a user interface for providing a link page list according to an embodiment of the present invention.

The set-top box 20 installed in the IP TV 25 downloads a video to be downloaded and stored from the IP broadcasting server 10 through a wired or wireless network. In this case, the IP broadcasting server 10 stores corresponding metadata for each broadcast video, and when the video is downloaded to the STB of the IT TV and played, the metadata of the video is also downloaded. The link page list as shown in Fig. 2 is displayed. The linked page list is displayed on the screen before playing the video to provide convenience to the user.

To this end, the IP broadcast server 10 includes a video storage DB 12 storing a video and a metadata storage DB 11 storing metadata related to each video. The metadata is independent data for explaining or operating the corresponding data for a video based on a database. For example, the metadata refers to a description file or a schema of a video that is a program.

The contents stored in the metadata storage DB 11 include EPG metadata and content-based metadata. The EPG metadata records programming information of electronic program guides such as channel and video information, and the content-based metadata records information necessary for implementing a link page list according to the present invention.

A metadata schema representing the structure of each entity of the metadata is defined as an XML schema which is a markup language schema, and the metadata is stored in an XML file so as to conform to the XML schema.

The structure of the metadata schema includes a header and a body. The header contains metadata creation information, and the body contains metadata contents to be described.

3 is a diagram illustrating a content-based metadata schema structure having a content-based header and a content-based body.

As shown in FIG. 3, the content-based metadata schema structure 30 includes a contents-based header 40 and a contents-based body 50. The contents-based header 40 is illustrated in FIG. 4. As described above, the schema includes the schema reference version 41 (XsdVesion), the metadata creation date and time 42 (createDate), the validity period 43 (AvailablePeriod), and the metadata update period 44 (RefreshCycle).

The content-based body 50 is a place where information necessary for implementing a link page list is recorded on an IP TV according to the present invention. As shown in FIG. 5, the basic information 51 (BasicInfo) and the bookmark information 52 (BookmarkInfo) are shown. , Video information 53 (BroadcastingInfo), and shopping information 54 (ShoppingInfo).

Detailed information for each metadata recorded in the content-based body is shown in the table of FIG. 6 (FIGS. 6A, 6B, 6C, and 6D). The basic information 51 includes basic information of video content. It is recorded and includes the content ID of the video, the supplier information, the video type, and the link path of the video.

The bookmark information 52 records a bookmark locator and a thumbnail image for reproduction of each section, and includes a bookmark generation type, index information, a bookmark title, and a related thumbnail image.

The video information 53 records contents for identifying video information location, video information, index information, plot, planning intention, crew, character information, shooting location, OST, related thumbnail image, link information of section video image. , Event information.

The shopping information 54 records location identification information of an advertisement assigned to the video, and includes advertisement title, product name, index information, manufacturer, manufacturer's homepage address, price, advertisement image, and link information of the advertisement. Include.

7 is a flowchart illustrating a process of implementing a user interface consisting of a link page list according to an embodiment of the present invention.

The link page list should be displayed on the screen before playing the video. In the present invention, when the STB tries to download and play the video from the IP broadcasting server, the link page on the IP TV is also downloaded with the content-based metadata of the video. Display the list.

To this end, the IP broadcast server 10 should generate and store metadata including EPG metadata and content-based metadata in the metadata storage DB (S71).

When the user selects a specific video from the displayed electronic program guide (S72) and requests playback (S73), the set-top box requests a download of the video from the IP broadcasting server (S74).

The IP broadcast server 10 receiving the video request searches for the video (S75), downloads it to the set-top box, and downloads the content-based metadata related to the video (S76). The content-based metadata records basic information, bookmark information, video information, and shopping information of the video.

Receiving the content-based metadata, the set-top box 20 uses the information as indexing metadata, such as the link page list of FIG. 2, the entire video playback area 26, the bookmark area 27, and the broadcast associated with the video. A link page list (LinkPageList) showing the information area 28 and the shopping information area 29 as one screen is constructed and displayed on the IP TV (S77).

The link page list is a service provider-provided web page that lists the bookmark information set in the video on one page, and the link page list identifies all the information set in the video on one screen and easily accesses the information before the user plays the video. Do it. The link page list is displayed in the form of indexing (indexing metadata) using the information on the downloaded metadata.

The linked page list is displayed divided into four areas as follows.

-Entire video play area 26: Menu area to play the video from the beginning.

-Bookmark area (27): Mark point for each story development of the program which is set in advance by the creator of the video (program), which is displayed as a thumbnail image of the corresponding part and a simple comment, and the location of the corresponding video when an image of a specific thumbnail is selected. Played from Linked to play from the section when the user selects the thumbnail image.

-Broadcast information area 28: Provides SAI and event information related to the video (program). If you select a random item, the video moves to the corresponding position and you are taken to a page displaying the related information of the upgraded video.

Shopping information area 29: a list of screen-based advertising information associated with the video. If any item is selected, the URL page is displayed.

As a result, when the user selects a random video (program) stored on the IP TV, a list of link pages downloaded from the Internet is displayed on the screen, and the user moves to the video (program) playback and related information pages starting from the link page list. You can get services. In addition, during the video playback, you can call the list of linked pages by pressing the hotkey button on the remote control at any time.

Meanwhile, the user may set a specific point as a bookmark in the bookmark area of the displayed linked page list. When bookmarks are set in this way, metadata about the bookmark point, the image of the bookmark point, and tagging information that records the user's short note about the bookmark point can be uploaded to the IP broadcasting server to share these metadata with each other. have.

FIG. 8 is a conceptual diagram illustrating a state in which bookmark information (BookMark), broadcast information (InfoPage), and shopping information (ShoppingPage) are allocated to each section in a video, and there are thumbnail images for each section of one video (program). It is possible to play from the section, and it can be seen that broadcast information and shopping information are allocated by bookmarking each section.

On the other hand, metadata (EPG metadata and content-based metadata) is downloaded when the video is downloaded. If the scheduled recording is performed through the PVR (Personal Video Recorder) function, the metadata is downloaded during the scheduled recording. If it is not downloaded during the scheduled recording through the PVR function, the download is requested again when the video is played. Also, check the metadata version and always download the latest version from the broadcast IP server.

However, since the current reserved recording method is stored based on EPG metadata information having incorrect broadcasting time information, there is a problem that obtaining information through content-based metadata at a specific point in time may not be accurate. Therefore, even after the recording is finished, it is necessary to correct the position where the video starts with the actual broadcast time information. That is, only when correcting the correct time for the recording can be reproduced at the right time when recording the recording through the content-based interface. This correction algorithm is described in detail with the flowchart of FIG.

9 is a flowchart illustrating a time correction process when a recording is played back through a content-based screen interface according to an exemplary embodiment of the present invention.

First, the user has a process of setting recording schedule information (S91), wherein the recording schedule information includes a program ID (ProgramID), a channel ID (ChID), a recording start time (StrTime), and a recording end time (EndTime). , The file path to be saved. The set recording reservation information is stored in the recording reservation call application in the set top box together with the user ID, the request information ID, and the set top box ID.

The recording reservation call application has a process of correcting the broadcast start time of EPG metadata by parsing the most recent EPG metadata immediately before the preset recording start time (eg, 30 minutes).

EPG metafiles are periodically transmitted / stored in the set-top box in preparation for a situation in which a program airing time is changed in the EPG. Therefore, the latest EPG metadata is downloaded and parsed before a predetermined time (eg, 30 minutes) before the scheduled recording start time arrives, and the broadcast start time of the EPG is updated and corrected.

When the recording start time of the scheduled recording reservation information arrives, PVR recording is performed for the corresponding program and the actual recording start time is stored (S93).

Thereafter, the difference between the corrected broadcast start time and the actual recording start time is calculated and stored as a PVR offset (PVRoffset) (S94). The PVR offset is an offset value indicating the position where the broadcast program is actually started in the PVR recording.

Thereafter, when there is a playback request for the PVR recordings recorded and stored in the PVR through the content-based screen interface, the content-based event occurrence time, that is, the playback time, is corrected with reference to the PVR offset (S95).

Therefore, through the correction process through the PVR offset, it is possible to achieve synchronization between the content-based service metadata and the PVR recordings.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention is not to be determined by the embodiments described above, but will be apparent in the claims as well as equivalent scope.

1 is a conceptual diagram for implementing a user interface for providing a link page list according to an embodiment of the present invention.

2 is a diagram illustrating an example of a structure of a link page list according to an embodiment of the present invention.

3 is a diagram illustrating a schema structure of content-based metadata according to an embodiment of the present invention.

4 is a diagram illustrating a header structure in content-based metadata.

5 is a diagram illustrating a body structure in content-based metadata.

6 is a table illustrating items of content-based metadata.

7 is a flowchart illustrating a process of implementing a user interface consisting of a link page list according to an embodiment of the present invention.

8 is a conceptual diagram illustrating a state in which bookmark information (BookMark), broadcast information (InfoPage), and shopping information (ShoppingPage) are allocated to each section in a video according to an embodiment of the present invention.

9 is a flowchart illustrating a time correction process when a recording is played back through a content-based screen interface according to an exemplary embodiment of the present invention.

Claims (14)

An IP broadcasting server storing video for each program and having metadata recording information of the video in the form of markup language; The video requested from the IP broadcasting server and the metadata of the video are downloaded, a bookmark area linking section playback using the metadata information, a broadcast information area linking the information of the video, and an advertisement assigned to the video. A set-top box that creates a list of link pages showing the shopping information area linked to water on one screen and displays them on an IP TV. Content-based screen interface implementation system comprising a. The system of claim 1, wherein the IP broadcasting server comprises a metadata storage database storing content-based metadata recording basic information, bookmark information, video information, and shopping information for each video. The system of claim 2, wherein the metadata storage database further includes EPG metadata recording information about an electronic program guide having video information for each channel. The content-based metadata of claim 2, wherein the content-based metadata includes a content-based header and a content-based body, wherein the content-based header includes a schema reference version (XsdVesion), metadata creation date (date), and valid period (AvailablePeriod). And a metadata update cycle (RefreshCycle), wherein the content-based body includes the basic information, the bookmark information, the video information, and the shopping information. A first step of the set-top box requesting the IP broadcasting server to download the requested video from the user; The IP broadcasting server transmits the requested video to the set-top box, and adds content-based metadata in XML, which is markup language (XML), containing basic information, bookmark information, video information, and shopping information of the video. Transmitting to the second step; On the basis of the received content-based metadata, the set-top box includes a bookmark area linking section playback, a broadcast information area linking information of the video, and a shopping information area linking advertisements assigned to the video. The third step of creating a list of link pages displayed on the screen of the display and displaying them on the IP TV. Content-based screen interface implementation method comprising a. The method of claim 5, wherein the link page list is displayed on a screen before playing a video. The method of claim 5, wherein the bookmark information is information for recording bookmark information for playback of each section of the video, and includes a bookmark generation type, index information, a bookmark title, and a related thumbnail image. The method of claim 5, wherein the video information is information recording a program introduction of the video, and includes a video title, index information, a plot, a planning intention, a crew, character information, a location, an OST, a thumbnail image, and a section video image. A method of implementing a content-based screen interface including link information and event information. The method of claim 5, wherein the shopping information is information on advertisements assigned to the video, and includes advertisement title, product name, index information, manufacturer, manufacturer's homepage address, price, advertisement image, and link information of the advertisement. How to implement a content-based screen interface. The method of claim 5, wherein the link page list further comprises an entire video playback area in which a link for playing the entire video from the beginning is set. The method of claim 5, wherein the bookmark region links thumbnail images for each section of the video to be played from the corresponding section when selected. According to claim 5, If there is a specific bookmark setting using the displayed bookmark area, by uploading the content-based metadata for the set bookmark point, the image of the bookmark point, simple tagging information to the IP broadcast server A method of implementing a content-based screen interface characterized by sharing content-based metadata. The method of claim 5, wherein the broadcast information area provides event information related to the video, and when a specific item is selected, the broadcast information area moves to a page displaying related information of the video at the corresponding location. Setting PVR recording reservation information including a program ID, a channel ID, a recording start time, and a recording end time; Updating and correcting the broadcast start time of the EPG by downloading the latest EPG metadata before the scheduled recording start time arrives; When the recording start time arrives, performing PVR recording on the corresponding program and storing the actual recording start time; Calculating a difference between the corrected broadcast start time and the actual recording start time and storing the difference as a PVR offset; If there is a play request for the PVR recordings recorded by the PVR, correcting the play time with reference to the PVR offset and playing back the play. Content-based screen interface implementation method comprising a.

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