KR20050122024A - Tool service method and system at mpeg -21 multimedia framework - Google Patents

Abstract

The present invention is a tool necessary for the compatibility of executable programs or data files required when a client uses contents provided by a client connected to a server in the MPEG-21 multimedia framework for standardizing integrated technologies and electronic technologies for digital contents. A method and system for servicing the same are disclosed.

According to the present invention, when an executable program or data provided by the client is not compatible with the hardware and software of the client, the client can use the executable program or data provided from the server by receiving the necessary tool by the tool server separately constructed. There is an effect that the client can smoothly use the various digital content provided from the server.

Description

 Tool service method and system required in MPEG-21 multimedia framework {Tool Service Method and System at MPEG-21 Multimedia Framework}

The present invention relates to a required tool service method and system thereof in the MPEG-21 multimedia framework. More particularly, the present invention relates to a client in the MPEG-21 multimedia framework for standardization of element technologies and integrated technologies necessary for electronic commerce of digital contents. The present invention relates to a tool service method and a system required for compatibility of an executable program or data file required when a user accesses a server and uses a content provided.

As is well known, when a client connects to a server and uses contents provided by the server, the client unilaterally downloads an execution program or data file provided by the server to install a program or receive data.

Accordingly, there has been a problem that the program or data file downloaded by the client is not compatible with the hardware and software of the client, or the support program is lacking, so that normal use is impossible.

In particular, this problem is aggravated when the client is not a PC, but various media applications such as PDAs, MP3 players, and various media applications such as set-top boxes. There was a problem.

An object of the present invention is to provide a tool required by the client by a tool server built separately if the execution program or data provided from the server is incompatible with the hardware and software of the client to solve this problem, the execution provided from the server To provide a tool service method and system for the MPEG-21 multimedia framework that can utilize a program or data.

The object of the present invention is to build a tool server that stores tool-related information such as tool ID, tool service format information, tool operating hardware, and environment information such as a support program, separately from the client and server. Parse DID (Digital Item Declaration) to get information about resources by connecting and downloading downloaded program or data file.If the resource cannot be played, first connect with tool server, and connect resource information and client hardware and software. Schema (SCHEMA) is created and sent to the tool server. The tool server searches the database for related tools and sends the tool information to the client if the tool exists. If the user of the client selectively requests the tools in the list, , By sending the tool and installing it on the client Offers received suggests the MPEG-21 tools required service method of the multimedia framework and a system that can seamlessly take advantage of the program or data files.

Accordingly, the present invention enables the client to smoothly use the various digital contents provided from the server, thereby effectively utilizing the digital contents.

Referring to the present invention in more detail with reference to the accompanying drawings as follows.

MPEG 21 in the present invention does not assume a specific platform. In other words, the client of the present invention can be applied to all media application devices such as PCs, various portable media devices such as PDAs, MP3 players, and set-top boxes.

1 shows a system for applying the service method of the present invention. As can be seen from the present invention, the web server is connected via a wired / wireless internet network or a PC via a local network as well as a PDA and an MP3 player. This is done by connecting a tool server to. The tool server provided by the present invention includes a database unit for storing information about a tool, a search system unit for searching for a tool, a network unit for enabling access using various network protocols, inputting information about a tool and a tool, It comprises a tool information processing interface unit for deleting and modifying, a message processing unit for processing a message, and a tool storage unit for storing a tool.

In particular, the tool storage unit according to the present invention will be described in detail with reference to FIG. 2 in the required tool service method in the MPEG-21 multimedia framework according to the present invention.

First, in the present invention, when a client connects to a web server, the web server inquires of the client whether to download a program or a data file. At this time, when the client requests the download, the corresponding DID is transmitted from the web server and the client receives it. At this time, the client parses the corresponding DID and selects a resource (media) for utilizing the same. The client then obtains its URL, service format, and platform related information.

In other words, if the location where the program or file is located is provided terminator2.mp4 located in the domain of www.pixtree.com, for example, rtsp: //www.pixtree.com/terminator2.mp4 is recorded in the URL. Next, information about multimedia such as video, image, audio, graphic, and text will be described. For example, in the case of video, information related to a compression method, a screen size, and the like are described. In addition, the platform describes information about the client's CPU, memory, peripheral storage capacity, network transfer speed, and so on. Subsequently, if the client can play the downloaded resource or decrypt or utilize the data file, it can play, decrypt or utilize the data file, and if not, the client user connects the client to the tool server. Therefore, the client is connected to the tool server by using a wired / wireless internet or a local network. At this time, the client transmits a schema such as a URL, a service format, and a platform to the tool server. Accordingly, the tool server stores the data in the database, and then searches for the storage unit in which the tool is stored by referring to the transmitted schema. As a result, if there is a corresponding tool, the tool server sends the tool information list to the client. When the client user views the tool information list and selects the tool, the tool server sends the corresponding tool stored in the tool storage unit. By storing and executing, you play, decrypt, and utilize. In addition, when a tool corresponding to the tool storage unit does not exist, the tool server informs the client that the tool does not exist and ends the series of processes.

The actual schema used in this process is described in XML (Extended Markup Language), and the schema is described by sequentially writing the following contents.

Naming Space

Server address

-. Information needed for service

Location of service

About the media itself:

In case of video and audio, information related to compression method, extension, screen size, multimedia information such as graphic, text, etc.

Platform Information: Information about the client itself that receives the service.

CPU name, clock speed, cache size, memory capacity, network, type, bandwidth, operating system (OS)

In addition, the tool server in the present invention must continuously store the tool in the storage unit for storing the tool, and gives a unique ID to the tool for managing the tool. Therefore, each tool does not have the same ID, and in order to save such a tool, a new tool must be input, and a tool that is no longer needed from the stored tools must be deleted, and the existing tool must be modified to a new version. For this purpose, the tool manages the storage unit in which the tool is stored using the information processing interface unit. In this way, all information related to management related to the tool is stored in the database unit storing the tool information, which is stored in the form of the schema described above.

That is, it stores the ID designated by the tool server as the location information of the tool, the URL, the service format as the information about the service handled by the tool, the hardware environment for the tool to operate, and related software such as the OS. Done.

In addition, in the present invention, the search system may be configured as an independent application or the web server may perform the function in the process of searching for the aforementioned tool.

In addition, in the present invention, since the message processing unit receives a tool request from the client and information required for the request in an XML format, an XML input parsing the parser, an information input unit for inputting the parser XML information to the search unit, and a search result again. It consists of an XML forming unit that forms XML and a message generating unit that generates a search result status and search results, etc., which is created with an XML schema including the following contents for transmission to a client.

List of searched tools

-.ID: unique ID of the tool

URL: Tool location

Matching Rate: Displays the number of matches with the information sent by the client requesting the tool.

In addition, the network unit in the present invention is responsible for the ability to access a variety of network networks, because it is difficult to know what network the client is using what protocol, the client is connected through a wired or wireless Internet network Of course, it is necessary to consider to enable a variety of network access in case of connecting through a CDMA network, such as a mobile phone.

In addition, in the present invention, in designating the ID of the tool in the tool server, various types of ID designation methods may be used. However, since the same ID needs to be assigned to the same tool, a GUID (Global Unique Identifier) and CRID may be used. (Content Referencing Indentifier), for books, the International Standard Book Number (ISBN) or Book Item and Component Identifier (BICI), the International Standard Recording Number (ISRN) or International Standard Music Number (ISMN), For video, use International Standard Audio-Visual Number (ISAN),

For periodicals, the ISSN,

For papers, SICI,

If the book is BICI,

For music works (especially recording CDs or video music), ISRC,

For music works (grant code by composer or publisher), ISWC-T,

For literature and drama songs, ISWC-L,

For still images, SPIFF,

In the case of digital authoring, DOI can be used.

It is also possible to use the CRID of TV-anytime, the international standard for digital recording (VR) as the location of the resource, in which case any identification code for the resource can be used. In addition, the service format information can be recorded by using the information in the media format type in the schema of MPEG-7 as the format information among the service information of the tool. It is written in XML so that it can be exchanged so that you can easily switch to another format.

In this manner, the present invention enables the client to smoothly use the various digital contents provided from the server, thereby enabling the user to effectively utilize the contents of the server.

Accordingly, the present invention has the advantage of utilizing a variety of useful programs or data files utilized by each other, such as not only a PC, but also a PDA, a mobile phone, and an MP3 connected to the PC, which are gradually increasing in frequency of use.

1 is an explanatory diagram showing an overall system having a tool server for applying the present invention.

2 is a flow chart showing a required tool service method in the MPEG-21 multimedia framework according to the present invention.

Claims (10)

 Build a database unit with tool-related information such as tool ID, tool service format information, hardware on which the tool operates, support programs, etc., and build a tool server by storing the tool in the tool storage unit. Steps for acquiring information about the resource by parsing the downloaded program or data file by connecting with the server, and if the resource is not playable, first connecting with the tool server, resource information and client Creating and sending schemas of hardware and software to the tool server, retrieving the relevant tools from the database in the tool server, and delivering the tool information to the client as a list if the tool exists; , Optionally send the tool to install it on the client. A necessary tool service method in the MPEG-21 multimedia framework, characterized in that it comprises the steps. The method of claim 1,  Required tool service method in MPEG-21 multimedia framework characterized by using Global Unique Identifier (GUID) as tool ID. The method of claim 1, Required tool service method in MPEG-21 multimedia framework characterized by using Content Referencing Indentifier (CRID) as ID of service. The method of claim 1, A tool service method in the MPEG-21 multimedia framework characterized by using an ID established by an International Standard Book Number (ISBN) for books and an International Standard Recording Number (ISRN) for music. The method of claim 1, A method of tool service in the MPEG-21 multimedia framework, characterized in that the location of the service of the tool uses a URL. The method of claim 1, A necessary tool service method in the MPEG-21 multimedia framework characterized by using the CR-ID of the TV-anytime as the location of the service of the tool. The method of claim 1, A tool service method in the MPEG-21 multimedia framework characterized by recording the service format information using the information in the media format type in the MPEG-4 schema as the format information of the service. The method of claim 1, wherein when the tool server transmits the tool list information to the client, the tool transmits the ID of the tool, the position of the tool, and the degree of correspondence with the information sent to the server by the information about the tool. 21 How to service required tools in a multimedia framework. The method according to claim 7, Required tool service method in the MPEG-21 multimedia framework characterized by containing the electrical media format type and specific information of the service (for example). In the known MPEG-21 multimedia framework composed of one or more servers and a plurality of clients connected to a wired or wireless network, Message processing unit to process tool information from client, network unit to connect to network, database unit to store tool information, search unit to retrieve tool information from database, and to process tool information such as input / modify / delete tool information. And a tool server having a tool information processing interface portion of a user.