KR100540535B1 - storage system and the operating method for data broadcasting - Google Patents

Abstract

The present invention relates to a data broadcasting storage system and a method of operating the storage application provided by the data broadcasting in a nonvolatile mobile storage device.

The present invention stores the data broadcasting storage application received in the data broadcasting in a nonvolatile mobile storage device to facilitate the movement of data so that the storage application can be easily used anytime and anywhere for the storage application selected and stored by the user. If you pay, you can protect your application.

In addition, the present invention can be easily used anywhere and anytime for the stored application selected and stored by the user, thereby improving user convenience, and protecting the user's application when the paid application of the data broadcast is commercialized in the future. Can get activated.

Data Broadcasting, Accumulation Applications, Mobile Storage Devices

Description

Storage system and the operating method for data broadcasting}

1 is a block diagram showing the internal structure of a digital television according to the present invention;

2 is a block diagram showing a data broadcast storage system for receiving and processing an application through data broadcast in a digital television according to the present invention;

3 is a flowchart illustrating a method of operating a data broadcast storage system according to the present invention.

<Description of Signs of Major Parts of Drawings>

100: tuner 110: demultiplexer

121: Audio buffer 122: Video buffer

123: data buffer 131: audio decoder

132: video decoder 133: data decoder

141: audio output unit 142: video output unit

150: memory 160: user input unit

170: central processing unit 180: data processing control unit

190: mobile storage device 200: data receiving unit

210: memory management unit 220: application processing unit

230: mobile storage device control unit 240: screen processing unit

250: system control

The present invention relates to a data broadcasting storage system and a method of operating the storage application provided by the data broadcasting in a nonvolatile mobile storage device.

In general, digital television refers to a general term for television broadcasting transmitted digitally. In the United States, we decided to adopt digital for the next generation of televisions called ATV (Advanced television), and in Europe, many projects such as HD DIVINE such as Swedish broadcasting, SPECTRE of the UK and DIAMOND of French broadcasting are being conducted. Research is being actively conducted in each country in the next generation television system linked with ISDN or computer network.

In recent years, the digitization of television broadcasts is progressing rapidly.

A stream transmitted in digital broadcasting may transmit data information together with a video / audio signal. Here, the data information transmitted along with the video / audio signal is based on markup data such as HTML of ATVEF (Advanced Television Enhancement Forum), XDML of Digital TV Application Software Environment (DASE), and Xlet of DASE. Java-based data information.

Through such data broadcasting, viewers can get additional information related to programs or purchase products in a convenient way while watching TV, search for interesting information such as weather, securities, and news, and handle banking at home. Can be.

In addition, it is possible to participate directly in the live quiz program to receive a product according to the acquired score, or to actively participate, such as providing a news article or reflect opinions in the broadcast program itself.

Therefore, in the digital broadcasting as described above, it is possible to broadcast data in various formats in addition to the video and audio that have been broadcast in conventional analog television.

Currently, digital broadcast reception can be divided into terrestrial, satellite, and cable according to the standard.

The terrestrial, satellite, and cable broadcasts are different from country to country, but in Korea, terrestrial broadcasters use the ATSC method for North America, satellite broadcasters use the European DVB method, and cable broadcasters temporarily use OCAP. Adopted.

In the case of the terrestrial broadcasting, the digital broadcasting standard adopted is the 8-VSB (Vestigial Side Band) of the Advanced Television System Committee (ATSC) standard developed by the US. Some analogous to the NTSC method, which was an analog method, has been adopted, which is advantageous in terms of ease and economics in implementing a transceiver.

The digital broadcasting standard adopted in the case of satellite broadcasting is DVB (Digital Video Broadcasting), which has been widely used in Europe, and is a global standard for digital broadcasting of video, audio, and data.

OCAP (Open Cable Applications Platform), a digital broadcasting standard adopted in the case of cable broadcasting, is a standard that is the basis for creating applications for interactive services in cable broadcasting, and is able to provide web-based services for broadcasting. It will support interactive services.

In recent years, DVB-MHP, a European data broadcasting standard, has been expanding, and various functions that only data broadcasting can serve are being added.

In the future, when data broadcasting is activated, there will be numerous business models such as data broadcasting, authentication, and payment, and accordingly, various applications for various applications serviced by data broadcasting are required.

In the digital broadcasting system developed to date, the number of the data broadcasting has increased, but the user is still in the passive position of selecting and watching the service provided in a limited place.

Therefore, in today's digital era, informatization is rapidly spreading and full-fledged, there is a demand for a method that can be actively used for various applications provided from data broadcasting.

The present invention stores a data broadcasting storage application received in a data broadcasting in a non-volatile mobile storage device to facilitate data movement so that the storage application can be easily used anytime and anywhere for the storage application selected and stored by the user. The purpose of this is to provide a data broadcasting storage system and operation method that can protect its application if paid.

In order to achieve the above object, the present invention provides a data broadcast storage system comprising: a data receiving unit for receiving data in a digital television; A memory manager which stores and manages data received by the data receiver; An application processing unit for filtering and extracting the accumulation application according to whether a descriptor indicating the accumulation application is present among the data stored in the memory management unit; A mobile storage device controller which stores the accumulated application extracted by the application processor in a mobile storage device; And a system controller which collectively controls the data receiver, the memory manager, the application processor, and the mobile storage device controller.

The data receiver receives data from a data broadcast transport stream packet through a data carousel, an object carousel protocol, an addressable section, and data piping. It is characterized by.

The filtering of the accumulated application in the application processing unit may be distinguished by a descriptor in an AIT table or a DST table on a document.

The mobile storage device is characterized in that the non-volatile compact flash (smart flash), smart media (memory stick), memory stick (memory stick).

In addition, in order to achieve the above object, the present invention provides a method of operating a data broadcast storage system, comprising: receiving data; Storing the received data; Filtering and extracting the accumulation application according to whether a descriptor indicating the accumulation application is present among the stored data; The extracted accumulation application is stored in a nonvolatile mobile storage device.

The data is characterized in that it is transmitted to the North American DASE system or the European MHP system.

In the filtering and extracting of the accumulated application, it is determined whether a descriptor for determining the accumulated application exists in the data, and if the descriptor exists, the extracted application is determined to be extracted and if the descriptor does not exist, Judging by a general application is not characterized in that the extraction.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In recent years, DVB-MHP, a European data broadcasting standard, has been expanding, and has added various functions that only data broadcasting can serve, and one of them relates to stored applications.

In the future, when data broadcasting is activated, it is highly likely that a number of business models will be created, such as authentication and payment for data broadcasting.

Accordingly, data broadcasting is expanding its data broadcasting area by introducing accumulation applications.

There are two types of accumulation applications, which are related to broadcast programs and independent accumulation applications not related to broadcast programs.

The accumulation application related to the broadcast program is an application that can be driven only when a broadcaster sends a command to run the broadcast program, and the independent accumulation application is a data broadcast that can be independently driven regardless of the broadcaster's signal. Application.

An accumulation application related to the broadcast program may be an electronic program guide (EPG) program.

The EPG program may be stored and driven in a set-top box of a digital television, but is generally transmitted and provided from a broadcasting station as a data broadcasting application.

There are many companies in Europe that specialize in producing only EPG programs, which are delivered to broadcasters and provided to users.

Therefore, in the more diverse and rapidly changing broadcasting environment, it is more convenient to receive and use the EPG program, which is one of the applications provided by the broadcasting company, rather than the EPG program embedded in the digital TV set-top box. Will be .

Since the accumulation application for the EPG program has a large capacity, the EPG program can be used for a predetermined period after being downloaded from the broadcaster once, and the driving time of the EPG program is transmitted to the AIT table (in the case of DVB-MHP) or DST at the broadcasting station. Drives it through the table (ATSC-DASE), and also receives the actual SI information directly from the broadcast stream.

In contrast, an independent accumulation application that is not related to a broadcast program is a data broadcast application that can be driven independently regardless of a broadcaster's signal, such as a game program.

Independent storage applications, such as game programs, can be installed in a digital TV set-top box by installing a storage device such as a USB driver or compact flash for the storage application and downloading at home using an easily removable storage medium. After receiving it, you can use it at your friend's house or company.

In addition, even when the accumulation application is paid, the encrypted accumulation application can be carried using a mobile storage medium, and can be attached to a device capable of operating the accumulation application anytime, anywhere.

1 is a block diagram showing the internal structure of a digital television according to the present invention.

Referring to FIG. 1, first, when a broadcaster channel is selected by a viewer through a user input unit 160, the tuner 100 transmits a transport stream of a specific broadcast station selected from transport streams transmitted from broadcast stations under control of the central processing unit 170. Select to receive.

The demultiplexer 110 receives a transport stream (TS) packet of a specific broadcasting station and extracts audio / video and data for a specific program, thereby extracting the audio buffer 121, the video buffer 122, and the like. Temporarily stored in the data buffer 123, respectively.

Thereafter, the audio / video decoders 131 and 132 decode the extracted audio / video data, and the decoded audio / video data is output through the audio output unit 141 and the video output unit 142, respectively.

The data decoder 133 decodes the extracted data and transmits the decoded data to the data processing controller 180.

The memory 150 stores broadcast programs and various applications received under the control of the central processing unit 170.

The central processing unit 170 analyzes the extracted data to collectively control each internal device so that the broadcast and application are operated in a set manner.

At this time, the data is transferred to the North American DASE system or the European MHP system for viewing to the user.

Meanwhile, the data processing controller 180 which receives data from the data decoder 133 controls to store the transmitted data in the nonvolatile mobile storage device 190 through an interface.

The nonvolatile mobile storage device 190 includes a compact flash, a smart media, a memory stick, and the like, which are generally used as multimedia storage devices.

The digital television according to the present invention having the above-described configuration will be described below with regard to an operation of downloading and processing an accumulation application in data broadcasting.

In the data broadcast, the tuner 100 receives a specific accumulation application and the demultiplexer 110 classifies the transport stream and transmits the transport stream packet to the data decoder 133.

At this time, the data is transferred to the North American DASE system or the European MHP system, and the data is transmitted to a data carousel, an object carousel protocol, an addressable section, and data. It is transmitted to the digital television through a data piping technique or the like, and the transmitted data is stored in a local cache or executed immediately.

Thus, the received data is stored in the volatile memory in the digital television and is erased without remaining when powered off, but the accumulated application is stored in the nonvolatile portable mobile storage device 190. Stored so that they can be used even after the power is turned off.

In this case, it is also possible to store all the data transmitted in the data broadcast, but the produced and transmitted application is likely to be used continuously by the broadcasting station, but the data used by the application is constantly changed in real time, so it is useless over time. It is likely to be data.

Therefore, when only the accumulation application is stored and used in the mobile storage device, the same application does not need to be received again.

Meanwhile, the accumulation application as described above may be stored after user authentication through a CAS module in the future.

In such a case, there is a possibility that the accumulation application will be charged, and in this case, the user may use the CAS module after user authentication even when storing the data using a mobile storage device and then connecting to a device such as another digital television. .

2 is a block diagram illustrating a data broadcast storage system for receiving and processing an application through data broadcast in a digital television according to the present invention.

1 and 2, a broadcast transmitted in a transport stream form is received from a broadcasting station, divided into audio / video / data, and each packet is delivered to a corresponding decoder to output an interpreted audio / video signal.

At this time, the data is transferred to the North American DASE system or the European MHP system, and the data is transmitted to a data carousel, an object carousel protocol, an addressable section, and data. It is transmitted to the digital television through a data piping technique or the like.

The received data is stored in the non-volatile portable mobile storage device 190 of the data transmitted by the data processing control unit 180 in the digital television, so that it can be used even after the power is turned off. do.

As illustrated in FIG. 2, the data processing controller 180 may include a data receiver 200, a memory manager 210, an application processor 220, a mobile storage controller 230, and a screen processor 240. And the system control unit 250.

The data receiver 200 receives data from a transport stream packet through a data carousel, an object carousel protocol, an addressable section, data piping, or the like. It serves to pull out.

The memory manager 210 stores and manages the data received by the data receiver 200.

The application processor 220 manages a lifecycle of starting, stopping, and terminating an application among data received by the data receiver 200 and stored in the memory manager 210, and manages application information.

The mobile storage device controller 230 stores a stored application in a nonvolatile mobile storage device among applications managed by the application processor 220.

The screen processor 240 displays a running application along with a video signal on a screen.

The system controller 250 collectively controls the data receiver 200, the memory manager 210, the application processor 220, the mobile storage device controller 230, and the screen processor 240.

An operation of a data broadcast storage system having the above configuration and receiving and processing an application through data broadcast will be described with reference to FIG. 3.

3 is a flowchart illustrating a method of operating a data broadcast storage system according to the present invention.

2 and 3, first, the data receiving unit 200 receives data (S100).

The received data is stored in the memory manager 210 (S110), and the stored data is filtered by the application processor 220 only accumulated applications among the applications (S120).

For example, in the case of the MHP, the filtering process may determine whether the corresponding application is a general application or an accumulation application as the presence or absence of the "Application storage descriptor" in the AIT table.

The filtered and stored accumulation application is stored in the nonvolatile mobile storage device connected to the digital television through a predetermined interface by the mobile storage device controller 230 (S130).

Non-volatile mobile storage devices include compact flash, smart media, and memory sticks, which are generally used as multimedia storage devices.

Although the present invention has been described in detail with reference to specific embodiments, this is for explaining the present invention in detail, and the data broadcasting storage system and its operation method according to the present invention are not limited thereto, and the present invention is within the spirit of the present invention. It is apparent that modifications and improvements are possible by those skilled in the art.

According to the present invention, since the data broadcasting storage application received in the data broadcasting is separately stored in a nonvolatile mobile storage device, the storage application can be used after the digital television is turned off and used for the next data broadcasting reception. This has the effect of improving the speed of progression.

In addition, the present invention facilitates the movement of data by storing the stored application in the mobile storage device, which can be easily used anytime and anywhere for the stored application selected and stored by the user, thereby improving user convenience and paying for future data broadcasting. When an application is commercialized, it can protect its own application and bring about the activation of data broadcasting.

In addition, the present invention not only improves portability using storage devices such as compact flash, smart media, and memory sticks, which are generally used for storing multimedia data, but also improves the linkage between digital television and other multimedia devices. It works.

Claims (7)

In digital tv, A data receiving unit for receiving data; A memory manager which stores and manages data received by the data receiver; An application processing unit for filtering and extracting the accumulation application according to whether a descriptor indicating the accumulation application is present among the data stored in the memory management unit; A mobile storage device controller which stores the accumulated application extracted by the application processor in a mobile storage device; And a system controller which collectively controls the data receiver, the memory manager, the application processor, and the mobile storage controller. The method of claim 1, The data receiver receives data from a data broadcast transport stream packet through a data carousel, an object carousel protocol, an addressable section, and data piping. A data broadcast storage system. The method of claim 1, And filtering the accumulated application in the application processing unit by a descriptor in an AIT table or a DST table on a document. The method of claim 1, The mobile storage device is a non-volatile compact flash, smart media, memory stick (memory stick) characterized in that the data broadcast storage system. Receiving data; Storing the received data; Filtering and extracting the accumulation application according to whether a descriptor indicating the accumulation application is present among the stored data; And storing the extracted accumulation application in a nonvolatile mobile storage device. The method of claim 5, And the data is transmitted to a DASE system for North America or an MHP system for Europe. The method of claim 5, The filtering and extracting of the accumulation application , wherein the filtering of the accumulation application is classified by a descriptor in an AIT table or a DST table on a document .

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