KR100672405B1 - Apparatus and method for user interface in digital TV - Google Patents

Abstract

The present invention is to provide a digital TV user interface device and method for allowing a user to directly identify and search a file system on a digital TV's data service to execute a desired application or to directly access the file system. A retrieval unit for retrieving BIOP messages from the section data in the data stream and using them to construct a BIOP object, an execution unit for performing operations of the MHEG application using the BIOP objects configured in the reconstructing unit, Manages the information to be displayed on the user interface based on the subbinding list information to store file names and file types in a tree data structure, a tree structure manager having pointers to upper and lower lists on the tree, and the tree Based on the information from the rescue manager Display the file structure in the user interface, and transfer the user's input to the tree structure manager, and receive the files and applications selected by the user through the UI tree view manager to configure all locations of the files. An application selection unit configured to receive and analyze a type of a file selected by a user and to deliver the analyzed application to a user interface; and to receive at least one of the operation unit configured to receive an operation application and a file location configured in the application selection unit. It consists of including a launcher.

Digital TV, Application, DSM-CC based Data Broadcasting

Description

Apparatus and method for user interface in digital TV}

1 is a diagram illustrating a user interface for searching a file system of a digital TV according to the present invention.

2A to 2D are diagrams illustrating screen changes according to the user interface method of the digital TV according to the present invention.

3 is a flowchart illustrating a user interface method of a digital TV according to the present invention.

* Explanation of symbols for main parts of the drawings

10: front end 20: MPEG decoder

30: DSM-CC section filter 40: SI table manager

50: Downloader 60: OC

70: DSM-CC API 80: MHEG Engine

90: XML parser 100: HTML parser

110: Download File 120: Launcher

130: OC Directory Parser 140: Tree Structure Manager

150: UI tree view manager 160, 200: user interface                 

170: application selection unit 180: local HDD / network

190: Application file type table

The present invention relates to a digital TV, and more particularly, to a user interface device and method for accessing a file system on a DSC-CC type data broadcasting and a CI module of a digital TV.

Recently, researches on digital TV have been actively conducted in various countries around the world, including Korea, the United States, and the United Kingdom.

Although there is a difference between the US Advanced TV System Committee (ATSC) standard and the European Digital Video Broadcasting (DVB) standard, it provides data service based on Data Storage Media Command & Control (DSM-CC) in addition to A / V stream service. .

The data service provided on the broadcast is largely composed of two methods, a data carousel and an object carousel.

The data carousel is a protocol used to receive data on a broadcast using a DSM-CC UN message, and the object carousel is not simply receiving data because BIOP (Broadcast Inter-ORB Protocol) is encoded once more in the data carousel. To enable file system services based on the directory structure.                         

Currently, the application of digital TV using data services is about digital teletext broadcasting using MHEG (Multimedia and Hypermedia information coding Expert Group), but since it uses a file system similar to PC, in the future, various applications such as general PC will be used. It is expected that they can be applied to digital TVs.

In this case, rather than running the application automatically according to the service scenario like the current service, the user can execute the desired application or further download the desired file to his PC or the local hard disk on the digital TV. You should be able to.

However, since the user interface applied to digital TV is used only for service information, service switching, and various settings of TV, information about file system structure on data service cannot be obtained, and user can directly access file system. There is a problem that you can not select or download the desired application.

Accordingly, the present invention has been made to solve the above problems, the user can directly check the file system on the digital TV data service and search, so that the user can directly access the application such as running or downloading the desired Its purpose is to provide a user interface device and method.

A feature of the user interface device of the digital TV according to the present invention for achieving the above object is a component for retrieving a BIOP message from the section data in the received data stream, and using this to construct a BIOP object, the component The execution unit that performs the operation of the MHEG application using the BIOP object configured in, and manages the information to be displayed on the user interface based on the lower binding list information received from the configuration unit to display the file name and file type in a tree-type data structure A tree structure manager having pointers to upper and lower lists on the tree, displaying a file structure in a user interface based on the tree structure manager information, and passing user input to the tree structure manager. A UI tree view manager and a user through the UI tree view manager An application selection unit configured to receive the selected file and the application, configure all locations of the file, and receive and analyze the type of the file selected by the user, and deliver the analyzed application to the user interface; It is configured to include a launcher for receiving at least one file position to start at least one of the execution unit.

The configuration unit includes a DSM-CC section filter unit for separating section data from a received data stream, an SI table manager for managing the DSM-CC section filter unit, and searching for presence or absence of a BIOP message in the separated section data, and the DSM- Downloader section for downloading section data separated from CC section filter section and reassembling into module data, and OC composing BIOP object with module data reassembled in the downloader section using BIOP message retrieved from the SI table manager. It is configured to include other features.

The execution unit includes an MHEG engine, an XML parser, an HTML parser, and a file downloader.

A feature of the user interface method of the digital TV according to the present invention for achieving the above object is to analyze the PMT in the received data stream to search for a service of the DSM-CC type and to search for the searched file system on the first screen. And a second step of requesting a service gateway of a corresponding service having binding information on a lower object through a system search user interface displayed on the first screen, and binding information of the requested service gateway. A third step of storing the id and type of the file and the object information by parsing the file; and a fourth step of displaying a list of subdirectories and files having a tree structure on the first screen by using the stored information; The fifth step of selecting a specific file by expanding a directory with a tree structure according to And a sixth step of displaying a list of applications to which the selected specific file is applicable on the second screen, and transmitting the path of the file selected by the user to the corresponding application or file downloader through the second screen, and the delivered path. And a seventh step of reading the file from the DSM-CC API and starting the corresponding application or downloading the file to the storage unit.

In the seventh step, the file downloaded to the storage unit is transmitted to another device through a network, and the file can be utilized in other devices.                     

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

A preferred embodiment of a user interface device and method for a digital TV according to the present invention will be described with reference to the accompanying drawings.

1 is a diagram illustrating a user interface for searching a file system of a digital TV according to the present invention.

Referring to FIG. 1, when a digital TV MPEG stream is received through a front end 10, which is a radio wave receiver, the MPEG decoder 20 separates the received MPEG stream into an audio / video stream and a data stream. .

Subsequently, the DSM-CC section filter 30 separates the data stream among the separated streams into section data such as a table and a BIOP message.

At this time, the DSM-CC section filter 30 is managed by the SI table manager 40 and searches for the presence of a separated BIOP message to operate the object carousel (OC) 60.

In response to the request of the OC 60, the downloader 50 downloads the separated section data, reassembles it into module data, and delivers it to the OC 60.

Then, the OC 60 constructs a BIOP object such as a directory, a file, a stream, a stream event, and the like using module data transmitted from the downloader 50 by using the information of the BIOP message received from the SI table manager 40. In addition, the MHEG application performs the requested operation according to the request through the DSM-CC API 70.                     

The operation performed at this time is an operation of delivering an object to a designated location or a list of directories. And the object represents a directory or a file.

The DSM-CC API 70 generalizes the request of the application and delivers it to the OC 60 and delivers a return value to the application. In addition, the MHEG engine 80, the XML parser 90, the HTML parser 100, and the file downloader 110 are selectively operated by the launcher 120 as an application using the OC 60.

That is, the MHEG engine 80, the XML parser 90, the HTML parser 100, and the file downloader 110 use the DSM-CC API (File Location) received from the Launcher 120. 70) and receives the actual file from the OC (60). The file downloader 110 stores the received file on the local hard 180 or transmits the received file to another device through the network 180 to utilize the stored file in another device.

In this case, the launcher 120 receives an application to be operated and a file location from the application selector 170 to start the corresponding application and delivers the file location.

The OC directory parser 130 downloads a binding list representing a sublist of the directory object using the DSM directory list () API defined in the DSM-CC specification. This binding structure is constructed as follows.

struct Binding {                     

struct BIOP_Name {

char * id;

char * kind;

};

UINT8 BindingType;

char * Location;

char * objectinfo;

}

As such, the binding consists of a BIOP_Name having a point variable id and kind, and a BindingType having a point variable Location and objectInfo.

BIOP_Name represents the name and type of the sub-object (directory, file, stream, stream event), and BindingType consists of nContext and nObject to indicate whether the sub-object is a directory or not.

The point variable Location represents a pointer with actual data on the object carousel, and the point variable objectInfo is a pointer of a location for storing additional information.

For example, information about an application applied to a file may be stored as follows.

struct objectInfo {                     

   struct ApplicationInfo {

char * type; // text / html, text / xml, pic / gif, pic / png, etc

APPKIND appname; // MHEGengine, XMLparser, HTMLparser, etc

   }

}

The tree structure manager 140 then manages the information to be displayed on the user interface 160 based on the information received from the OC directory parser 130 and stores the file name and file type. , Has a pointer to the sublist.

Based on this information, the name, type, and type are transmitted to the UI TreeView manager 150 or the application selector 170 according to the user's request.

Then, the UI treeview manager 150 and the user interface 160 display the structure of the file system based on the information of the tree structure manager 140 input as described above, and input the user's input to the tree structure manager 140. To pass).

The application selector 170 receives a file and an application selected by the user from the user interface 160, configures all locations of the file through the upper pointer, and delivers the location to the launcher 120. To start.                     

In addition, by receiving the type for the file selected by the user, the corresponding application information (ApplicationInfo) stored in the pointer variable objectInfo is analyzed through the application-file type table 190, and an appropriate application is transmitted to the user interface 200. To help the user select an application.

The execution operation of the user interface of the digital TV according to the present invention configured as described above is as follows.

2A to 2D are diagrams illustrating screen changes according to the user interface method of the digital TV according to the present invention.

3 is a flowchart illustrating a user interface method of a digital TV according to the present invention.

A description with reference to FIGS. 2A to 2D and FIG. 3 is as follows.

First, when a service of the DSM-CC type exists in a corresponding channel, a user interface for searching a file system is displayed on the screen by a user's request (S10).

In this case, whether the service exists in the DSM-CC type may be determined by the SI table manager 40. That is, if the stream type information of the corresponding service is 0x0B by analyzing a program map table (PMT), it is determined that a service of the DSM-CC type exists.

Next, when a user interface for searching a file system appears on the screen, the OC directory parser 130 requests a service gateway (Srg) of a corresponding service using the DSM_GetName () function of the DSM-CC API 70 (S20). ).                     

At this time, since the service gateway corresponds to the root directory of the general PC file system, the OC 60 has downloaded the service gateway when the service starts. Therefore, the OC 60 returns to the OC directory parser 130 as soon as the service gateway is requested.

In addition, the service gateway is a kind of directory, and has binding information about an underlying object (directory, file, etc.).

Accordingly, the OC directory parser 130 parses the name and type of the sub-object from the binding information of the service gateway returned through the OC 60 and stores the id, type, and object information (objectInfo) in the tree structure manager 140. Store in (S30).

In addition, the UI TreeView manager 150 displays an id and a type in a tree structure on the screen by using the information stored in the tree structure manager 140.

In this case, the directory is preceded by an expandable mark and the available commands are displayed together. This is illustrated in FIG. 2A (S40).

Subsequently, when the directory is expanded by moving the tree structure by the viewer's command, the tree structure manager 140 creates a full path of the directory as a string and requests information from the OC directory parser 130.

Therefore, when extending mhg (dir) as shown in FIG. 2B, since the upper pointer is srg, only the string "/ mhg" needs to be sent. Therefore, the OC directory parser 130 receives this string and uses the DSM_Directory_resolve () function in the DSM-CC API 70 to import the corresponding directory.                     

The user repeats the above process in the directory to move to the desired file location (S50).

As described above, the file selected by moving the position is displayed in a separate lower window 200 as shown in FIG. 2C.

In addition, the default applications connected by default may be displayed in different colors, and the information may be displayed by searching the application-file type table 190 through the application selector 170 in the tree structure manager 140. (S60).

In this way, any one of the files displayed in the form of a tree on the screen may be divided into two methods, which are displayed through the screen, that is, the user interface 160 or downloaded to the storage unit 180 (S70).

First of all, when the user selects the desired application, the path of the selected application and the corresponding file is transmitted from the tree structure manager 140 to the application selection unit 170. Is transmitted to the selected application through the launcher 120 (S80).

The application reads a file from the DSM-CC API 70 through the DSM_File_read () function to start the application and displays the path as shown in FIG. 2D (S90).

Next, when the download method is downloaded to the storage unit 180, the user selects a desired application and requests a download. Then, the path of the file is transmitted from the tree structure manager 140 to the application selector 170, and this value is transmitted to the file downloader 110 through the launcher 120. S100).

Subsequently, the file downloader 110 reads a file from the DSM-CC API 70 through the DSM_File_read () function and sends the file to a local HDD or a network 180 through a hard disk controller. Transfer (S110).

As described above, the apparatus and method for user interface of a digital TV according to the present invention have the following effects.

First, the user interface for file system search allows the user to directly identify and search the file system on the SDM-CC type data service, and to execute a desired application instead of performing a predetermined action on the file. It is effective to widen the width.

Second, not only the application execution but also the file can be downloaded and saved or transmitted over the network, so that the user can utilize the downloaded file not only on the digital TV but also in other places such as a PC.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Claims (6)

A constructing unit for retrieving the BIOP message from the section data in the received data stream and using this to construct a BIOP object; An execution unit for performing an operation of an MHEG application using a BIOP object configured in the configuration unit; Manages the information to be displayed on the user interface based on the lower binding list information received from the configuration unit to store the file name and file type in a tree data structure, and a tree structure having pointers to upper and lower lists on the tree. With the manager, A UI tree view manager which displays a file structure in a user interface based on the information of the tree structure manager and transmits user input to the tree structure manager; An application selection unit configured to receive all the files and applications selected by the user through the UI tree view manager, configure all locations of the files, and receive and analyze the types of the files selected by the user and deliver the analyzed application to the user interface; And a launcher for receiving at least one of the execution unit by receiving the operation application and the file location configured in the application selecting unit.  The method of claim 1, wherein the component A DSM-CC section filter unit for separating section data from the received data stream; An SI table manager for managing the DSM-CC section filter unit and searching for the presence of a BIOP message in the separated section data; A downloader unit for downloading and reassembling the section data separated by the DSM-CC section filter unit into module data; And an OC constituting a BIOP object with the module data reassembled by the downloader using the BIOP message retrieved from the SI table manager. The method of claim 1, wherein the performing unit A digital TV user interface device comprising an MHEG engine, an XML parser, an HTML parser, and a file downloader. A first step of analyzing a PMT in the received data stream to search for a service of a DSM-CC type and displaying a searched file system user interface on a first screen; A second step of requesting a service gateway of a corresponding service having binding information on a lower object through a system search user interface displayed on the first screen; A third step of parsing binding information of the requested service gateway and storing an id and a type of a file and object information; A fourth step of displaying a list of subdirectories and files having a tree structure on the first screen by using the stored information; A fifth step of selecting a specific file by expanding a directory having a tree structure according to a user request; Displaying a list of applications capable of applying the selected specific file on a second screen; A seventh step of transferring the path of the file selected by the user to the corresponding application or the file downloader through the second screen, and reading the file from the DSM-CC API to start the application or downloading the file to the storage through the transferred path; Digital TV user interface method characterized in that it comprises a step. 5. The method of claim 4, wherein the searching in the first step is And analyzing the PMT to determine that a DSM-CC type of service exists if the stream type information of the corresponding service is 0x0B. The method of claim 4, wherein the file downloaded to the storage in the seventh step is The user interface method of a digital TV, characterized in that the file is transmitted to another device via a network and the file is available to other devices.

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