KR20130009498A

KR20130009498A - Apparatus and method for scalable application service

Info

Publication number: KR20130009498A
Application number: KR1020110070657A
Authority: KR
Inventors: 김경원; 임태범; 이석필
Original assignee: 전자부품연구원
Priority date: 2011-07-15
Filing date: 2011-07-15
Publication date: 2013-01-23

Abstract

An apparatus and method for application services in a given network system, such as a home network system, is disclosed. According to an embodiment, there is provided a method of servicing an application suitable for each of a plurality of terminals, the method comprising: transmitting an application request signal including its characteristic information and type information of a requesting application to a server, and corresponding to the type information of the application; Receiving from the server an application generated by the selected component extracted and selected according to the characteristic information in the workbook.

Description

Apparatus and method for scalable application service

The present invention relates to an application service, and more particularly, to an apparatus and a method for adaptively providing an application service in a network composed of various terminals.

As information and communication technology develops, the environment of television broadcasting service is changing rapidly. TV broadcasting services are being diversified into cable broadcasting, satellite broadcasting, digital multimedia broadcasting (DMB), and the like based on terrestrial broadcasting services that are being converted from analog broadcasting to digital broadcasting. In addition, as the IPTV service using the Internet has recently been activated, the broadcasting service has not only changed its nature from a one-way service which provides multimedia contents to a viewer but also an interactive service, and also has various kinds of service objects. Is getting. Accordingly, IPTV services are not limited to providing multimedia data such as video, audio, images, etc., and efforts have been made to provide applications executable in various terminals such as TV receivers, computers, and portable terminals.

Currently, the IPTV service is beginning to prepare for the mobile IPTV service using a mobile communication network. When mobile IPTV service becomes a reality, IPTV service will develop into IP convergence service that can be supported by both wired and wireless. In particular, since the mobile IPTV service can be provided using all terminals equipped with a communication function through a mobile communication network, the IPTV service is expected to be developed into a service capable of simultaneously supporting various terminals. In the IPTV service, a method for adaptively providing multimedia contents to various terminals using a multilayered video coding technique such as scalable video coding (SVC) has been sought.

However, SVC is merely a technique for hierarchically encoding so that one video content (video) can be provided to various terminals. On the contrary, an application service provides a program capable of executing various contents including a video directly on a user terminal or mounted on an engine of another device (eg, JAVA, FLASH, etc.), in which a plurality of elements and / or items are integrated. It is. When such an application program is reproduced, elements and / or matters integrated into a graphical user interface (GUI) or the like may be reflected and reflected on the user terminal.

However, at present, the application program is provided in a single format regardless of the type or characteristics of the terminal, and the method of providing the application program by optimizing it for various terminals has not been fully standardized or developed. More specifically, the current IPTV service does not consider individual characteristics of the terminal using the terminal (eg, terminal performance or display size). For example, an application program that plays multimedia contents or data provided through an IPTV service may have characteristics (for example, image quality or sound quality, security level, type or number of contents constituting the GUI, access range, etc.). This is determined as one, and does not provide the service adaptively reflecting the individual characteristics of the terminal using the IPTV service. Therefore, it is difficult to provide an application service optimized for the performance specification of the terminal for each terminal.

One method of providing an application service optimized for a performance specification of a terminal is to provide a service provider in a plurality of formats in consideration of the performance specifications of various terminals. For example, when browsing the web on a mobile device with a small display, content providers including Naver and Daum should access a web page pre-made for the mobile device in order to present the web to each terminal. have. However, in this case, since contents of various formats must be made and stored in advance in the service server, there is a disadvantage of increasing the service cost by increasing the burden on the service provider. In addition, it is practically impossible to make and store a GUI optimized for all terminals having various characteristics in advance.

The World Wide Web Consortium (W3C) aims to continuously use web applications on various devices, in addition to the CC / PP (Composite Capability / Preference Profile), the Device Independent Authoring Language (DIAL). Standards), standardizes the presentation of contextual information such as DISelect (Contents Selection for Device Independence), and Content Context and Filtering Standards to represent the Web on various devices, and DCI (Delivery Context Interfaces). Development into services is insufficient.

An object of the present invention is to provide an apparatus and method for providing an optimized application program for each terminal in a network environment consisting of various terminals.

An embodiment of the present invention for solving the above problems is a method for providing an application service suitable for each terminal in a network consisting of various terminals, the application request including its own characteristic information and the type of the requesting application; Transmitting a signal to a server, and receiving from the server an application generated from some components selected and extracted according to the characteristic information in a workbook corresponding to the type information of the application.

According to an aspect of the embodiment, the integrated document may be a combination of components written in a markup language for each of the plurality of terminals to play the application respectively.

According to another aspect of the embodiment, the characteristic information is the resolution of the terminal, the bandwidth of the terminal, the location of the terminal, the time of the region where the terminal is located, the user information of the terminal, the degree of security setting of the terminal, the application It may include at least one of the limiting elements of.

According to another aspect of the embodiment, the method may further include receiving the application type information desired to be serviced by a user and generating the application request signal based on the input application type information.

A terminal according to an embodiment of the present invention for solving the above problems is a terminal using an application service in a network composed of various terminals, an input unit for inputting an application type desired by a user, the input unit being input through the input unit. A processor for generating an application request signal including application type information and characteristic information of a terminal based on the application type, and executing an application included in an application response signal received from a server; the application request signal generated by the processor And a transmitter / receiver for transmitting an application response signal including an application from the server to the server, and an output unit for outputting an application executed in the processor to the user.

A terminal according to another embodiment of the present invention for solving the above problems is a terminal using an application service in a network composed of various terminals, an input unit for inputting an application type desired by a user, the input unit being input through the input unit. A processor for generating an application request signal including application type information based on the application type, a processor for executing an application generated in response to the application request signal, transmitting the application request signal to a server, and transmitting the application type from the server Transceiver for receiving an application response signal including a workbook corresponding to the, using the workbook received by the transceiver to select and extract some components in accordance with their characteristic information to the program Pre-parser for generating an application processor that is running, and includes an application running on the processor for outputting an output to the user.

According to an aspect of the embodiment, the pre-parser may be included in the processor.

According to the present invention, in order to provide a user interface and an application program optimized for terminals having different performances in consideration of a viewing environment, an SADL (Scalable Application Description Language), an integrated document, is a context-sensitive scalable user interface technology on a home network. By providing documentation, you can share / link application programs as well as video, audio, and image files in an IPTV environment. The application program can be simultaneously applied to digital devices having different viewing environments, and can provide a user interface optimized for various viewing environments. Therefore, according to the present invention, the user's convenience is enhanced and the storage / management / use of the application as well as the content is efficient. In addition, the service can be efficiently provided for each terminal requesting an application program or for each user of the terminal.

1 is a block diagram illustrating an example of a configuration of a network system in which an application service according to an embodiment of the present invention may be provided.
2 is a flowchart illustrating an application service process according to an embodiment of the present invention when the subject is a server.
3 is a flowchart illustrating an application service process according to an embodiment of the present invention when the subject is a terminal.
4 is a diagram illustrating an example of a configuration and a service process of a network system in which an application service may be provided according to another embodiment of the present invention.
5 is a flowchart illustrating an application service process according to another embodiment of the present invention.
6 is a block diagram showing a configuration of a server for performing such an application service process.
7 is a conceptual diagram illustrating an application sharing method in a network system according to another embodiment of the present invention.
8 is a flowchart illustrating an application sharing method in a network system according to another embodiment of the present invention.
9 is a block diagram showing the configuration of a terminal according to an embodiment of the present invention.
10 is a diagram illustrating an application sharing method in a network system according to another embodiment of the present invention.
11 is a flowchart illustrating an application sharing method in a network system according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms used are terms selected in consideration of the functions in the embodiments, and the meaning of the terms may vary depending on the user, the intention or custom of the operator, and the like. Therefore, the meaning of the terms used in the following embodiments is defined according to the definition when specifically defined in this specification, and unless otherwise defined, it should be interpreted in a sense generally recognized by those skilled in the art.

1 is a block diagram illustrating an example of a configuration of a network system in which an application service according to an embodiment of the present invention may be provided. Referring to FIG. 1, a network system includes a server 100, middleware 150, and a plurality of terminals 200_1, 200_2, and 200_3. 2 and 3 are flowcharts illustrating an application service process according to an embodiment of the present invention, respectively, in which FIG. 2 is a case where a subject is a server and FIG. 3 is a case where a subject is a terminal.

The plurality of terminals 200_1, 200_2, and 200_3 may be various digital devices that form a home network system in the home or may receive various services through the same. However, the present embodiment is not limited only to a home network system, but is a predetermined communication network (there is no limitation to a wired network or a wireless network, and may be a mobile communication network, a short range communication network, a mobile network, etc.). Such a plurality of terminals 200_1, 200_2, 200_3 may be, for example, a smart phone, a personal digital assistant (PDA), a cellular phone, a personal communication service (PCS) phone, a hand-held PC ( hand-held PC), Global System for Mobile (GSM) phones, Wideband Code Division Multiple Access (WCDMA) phones, CDMA2000 phones, and Mobile Broadband System (MBS) phones. It may be a mobile device or a PC device such as a personal computer (PC), a laptop computer, a tablet PC, or the like, or a device for a TV such as a digital TV.

The plurality of terminals 200_1, 200_2, and 200_3 are connected to the server 100 via wired and / or wirelessly to communicate with the server 100. In this case, the plurality of terminals 200_1, 200_2, and 200_3 may be directly connected to the server 100 or may be connected to the server 100 through the middleware 150 of the corresponding network system. In the former case, the communication between the plurality of terminals 200_1, 200_2, 200_3 and the server 100 is performed directly, while in the latter case, the communication between the plurality of terminals 200_1, 200_2, 200_3 and the server 100 is performed. Made through the middleware 150. That is, the plurality of terminals 200_1, 200_2, 200_3 request an application program to the server 100 directly or through the middleware 150, and the server 100 directly or through the middleware 150. , By providing the application program to the terminal 200_3, the application program can be shared among the plurality of terminals 200_1, 200_2 and 200_3.

2 and 3, the server 100 receives an application request signal for an application program from at least one terminal among a plurality of terminals 200_1, 200_2, and 200_3 (S210). Here, the application request signal may include at least one of information on the type of the application program and information on the format of the application program. To this end, each terminal 200_1, 200_2, 200_3 receives from the user at least one of information about the type of the application program and information about the format of the application program, and inputs the information about the type of the application program and the format of the application program. The application request signal including at least one of the related information may be transmitted to the server 100. Each terminal 200_1, 200_2, and 200_3 extracts its own characteristic information (Delivery Context, DC) (S310) and then transmits an application request including the extracted DC (DC_1, DC_2, DC_3) to the server 100. (S320).

The server 100 searches for an application program corresponding to information on an application program type included in an application request signal and information on a format of the application program among stored application programs (S220). Here, the type of the application program may be any type of content included in the application program, for example, an application program type including audio, video, image, and the like, and the format of the application program may be It may include at least one of XHTML, JAVA, and FLASH. On the other hand, the application program format can be further extended in the case of an object-oriented and descriptive application program in addition to the above-described XHTML, JAVA, and FLASH. That is, there is no particular limitation on the format of the application program, within a group to which the formats promised among the plurality of terminals 200_1, 200_2, 200_3 or between the terminals 200_1, 200_2, 200_3 and the server 100 belong. An application program having either format can be requested. The server 100 generates an optimized application for each terminal 200_1, 200_2, 200_3 by applying the characteristic information DC_1, DC_2, DC_3 included in the application request received from the terminals 200_1, 200_2, 200_3. This is described in detail later.

The server 100 transmits an application response signal including an application that is requested from each of the terminals 200_1, 200_2, and 200_3 and to which the characteristic information DC_1, DC_2, and DC_3 of the terminals 200_1, 200_2, and 200_3 are applied. 200_1, 200_2, and 200_3, and each terminal 200_1, 200_2, and 200_3 receives an application response signal, that is, an application program to which its own characteristic information DC_1, DC_2, and DC_3 included therein are applied. (S330).

Here, the transmission of the application request signal from the plurality of terminals 200_1, 200_2, and 200_3 to the server 100 may be transmitted through the middleware 150 or the plurality of terminals 200_1, 200_2, and 200_3 without the middleware 150. May be sent directly from the server 100 to the server 100. In addition, the transmission of the application response signals from the server 100 to the plurality of terminals 200_1, 200_2, and 200_3 may be transmitted through the middleware 150 or directly from the server 100 without the middleware 150. , 200_2, 200_3).

As described above, in a predetermined network system such as a home network system, the plurality of terminals 200_1, 200_2, and 200_3 may share not only audio, video, and images but also application programs, which are programs used to play them. Here, the application may be, for example, a graphical user interface (GUI) between each of the terminals 200_1, 200_2, and 200_3 and the server 100, an application program that can be linked with content, and a plurality of terminals 200_1, 200_2, and 200_3. It may be any one of a graphical user interface (GUI) with the middleware 150. Therefore, the application is between a plurality of terminals (200_1, 200_2, 200_3), between the server 100 and a plurality of terminals (200_1, 200_2, 200_3), between the server 100 and the middleware 150, middleware 150 and a plurality of It is possible to share between the terminals (200_1, 200_2, 200_3).

Meanwhile, each of the plurality of terminals 200_1, 200_2, and 200_3 may provide various viewing environments to the user according to the type and / or performance thereof. Accordingly, when the server 100 services an application program to each of the plurality of terminals 200_1, 200_2, and 200_3, contents, formats, ratings, configurations, etc., which are suitable for playing each of the plurality of terminals 200_1, 200_2, 200_3, etc. Consider serving content with. This is one method for allowing various terminals 200_1, 200_2, and 200_3 to share and reproduce application programs including contents in a predetermined network system, and to optimally play and / or execute them according to their characteristics.

An application service method according to another exemplary embodiment of the present invention in a predetermined network system will be described with reference to FIGS. 4 to 6. 4 is a diagram illustrating a configuration and service process of a network system, for example, a home network system, to which an application service may be provided, according to another embodiment of the present invention, and FIG. 5 is an application service process according to another embodiment of the present invention. 6 is a block diagram showing the configuration of a server for performing such an application service process.

Referring to FIG. 4, the network system includes a server 100 and a plurality of terminals 200_1, 200_2, and 200_3. Although not shown in the drawings, the network system may further include middleware 150 (see FIG. 1) as shown in FIG. 1.

The server 100 is wired and / or wirelessly connected to each of the plurality of terminals 200_1, 200_2, and 200_3. The server 100 may control sharing of application programs of the plurality of terminals 200_1, 200_2, and 200_3 or interworking among the plurality of terminals 200_1, 200_2, and 200_3. Alternatively, the server 100 may provide applications SADL_C1, SADL_C2, and SADL_C3 having the same or similar functions to each of the plurality of terminals 200_1, 200_2, and 200_3, and the types and capabilities of the respective terminals 200_1, 200_2, and 200_3. By appropriately providing according to the state, the application may be individually optimized and shared among a plurality of terminals 200_1, 200_2, and 200_3 providing various viewing environments. This will be described in more detail below.

First, each of the plurality of terminals 200_1, 200_2, and 200_3 transmits its characteristic information DC_1, DC_2, and DC_3 to the server 103. Here, when the application information is provided to each of the plurality of terminals 200_1, 200_2, and 200_3 from the server 100, the characteristic information DC_1, DC_2, and DC3 may be provided to the plurality of terminals 200_1, 200_2, and 200_3. ) May refer to unique information of each of the plurality of terminals 200_1, 200_2, and 200_3 necessary to be optimized (or reproduced) in each of the plurality of terminals. For example, the characteristic information DC_1, DC_2, and DC_3 may include at least one of information on performance of each of the plurality of terminals 200_1, 200_2, and 200_3, information on a user context, and information on a service policy. The information on the performance of the terminal may include at least one of information on the type of the terminal, information on the display of the terminal, and information on memory compatibility of the display of the terminal. The information about the user situation may include at least one of the network status of the terminal, the user location of the terminal, information about the time of use, local characteristic information of the user including language or culture, and information about the performance of the terminal. The information about the user context and the service policy may be expressed by at least one of Boolean, string, and numeric.

In addition, each of the plurality of terminals 200_1, 200_2, and 200_3 may request a desired application from the server 100. To this end, each of the plurality of terminals 200_1, 200_2, and 200_3 transmits an application request signal including information (type or format) about a desired application to the server 100. The above-described characteristic information DC_1, DC_2, and DC_3 may be included in an application request signal and transmitted to the server 100. Here, the application program may include content of various types or various formats such as video, audio, and image files, and may be a predetermined application program that may be executed in the plurality of terminals 200_1, 200_2, and 200_3. Hereinafter, a case where the object requested to the server 100, that is, the service object is a graphical user interface (GUI) or an application (SADL_C1, SADL_C2, SADL_C3) will be described as an example.

The server 100 receives an application request signal including the characteristic information DC_1, DC_2, and DC_3 from each of the plurality of terminals 200_1, 200_2, and 200_3 (S510), and receives a plurality of terminals from the received application request signals (S510). The characteristic information DC_1, DC_2, and DC3 of each of the 200_1, 200_2, and 200_3 are obtained. At this time, the server 100 may also receive a request for the application (SADL_C1, SADL_C2, SADL_C3) from the plurality of terminals (200_1, 200_2, 200_3), where the request for the application is about the type or format of the application, etc. For example, the components constituting the application need not be specifically identified. Components constituting each of the applications SADL_C1, SADL_C2, and SADL_C3 may be determined in consideration of the characteristic information DC_1, DC_2, and DC_3 of the terminal from which the server 100 is received.

The server 100 grasps the characteristic information DC_1, DC_2, and DC3, and according to each characteristic information DC_1, DC_2, and DC_3, the most optimized application for reproducing each of the plurality of terminals 200_1, 200_2, and 200_3. (SADL_C1, SADL_C2, SADL_3) are provided.

In detail, the server 100 may store the workbook SADL_S written in a markup language in its own memory or in an external database (Data Base, DB). In the latter case, the server 100 may previously download the workbook SADL_S from the external DB before generating the applications SADL_C1, SADL_C2, and SADL_C3. The workbook SADL_S includes components (or items) a to z written in markup language that allow each of the plurality of terminals 200_1, 200_2, and 200_3 to play the optimized applications SADL_C1, SADL_C2, SADL_C3. It can be an integrated document. Accordingly, the server 100 selects and extracts at least one component from one workbook SADL_S according to the characteristic information DC_1, DC_2, and DC_3 provided from each of the plurality of terminals 200_1, 200_2, and 200_3 (S520). In operation S530, applications SADL_C1, SADL_C2, and SADL_C3 corresponding to the characteristic information DC_1, DC_2, and DC_3 of each of the plurality of terminals 200_1, 200_2, and 200_3 may be generated. The server 100 transmits a service, that is, an application SADL_C1, SADL_C2, and SADL_C3 optimized for each of the plurality of terminals 200_1, 200_2, and 200_3 (S540). Here, the applications SADL_C1, SADL_C2, and SADL_C3 may be configured of at least one of XHTML, HTML, JAVA, and Flash.

For example, the server 100 may have a workbook SADL_S composed of components a to z. The server 100 may receive the first characteristic information DC_1 from the first terminal 200_1, grasp the first characteristic information DC_1, and recognize the resolution and the processing capability of the first terminal 200_1. And selecting and extracting the components a, d, and x that are playable and processable at the resolution of the first terminal 200_1 from the workbook SADL_S to generate an application SADL_C1 composed of the components a, d, and x, This may be transmitted to the first terminal 200_1.

Alternatively, the server 100 receives the second characteristic information DC_2 from the second terminal 200_2, grasps the second characteristic information DC_2, and supports the supported language, available bandwidth, and in-house of the second terminal 200_2. Location can be recognized. The component a, b, An application SADL_C2 composed of c and y may be generated and transmitted to the second terminal 200_2.

Alternatively, the server 100 receives the third characteristic information DC_3 from the third terminal 200_3, grasps the third characteristic information DC_3, and the user information of the third terminal 200_3 and the security of the terminal 200_3. The setting degree can be recognized. The components a, f, and g are selected and extracted from the workbook SADL_S by selecting and extracting components a, f, and g that are playable and processable to the user information of the third terminal 200_3 and the security setting of the terminal 200_3. The application configured SADL_C3 may be generated and transmitted to the third terminal 200_3.

In this way, the server 100 allows each of the plurality of terminals 200_1, 200_2, and 200_3 to optimally reproduce the applications SADL_C1, SADL_C2, and SADL_C3 according to the characteristics of each of the plurality of terminals 200_1, 200_2, and 200_3. Since some components are selected and extracted from the integrated document SADL_S, the single application may be shared in an optimized state in each of the plurality of terminals 200_1, 200_2, and 200_3. Here, the integrated document SADL_S is newly defined by the inventors of the present application and is written in a markup language, and is included in the characteristic information DC_1, DC_2, and DC_3 of each of the plurality of terminals 200_1, 200_2, and 200_3. Accordingly, since the document can be selected and extracted from the workbook (SADL_S) to generate an application optimized for the terminal, that is, the workbook (SADL_S) is scalable, so the workbook (SADL_S) will be described below. This is called a scalable application description language (SADL) document.

Hereinafter, a method of efficiently serving the applications SADL_C1, SADL_C2, and SADL_C3 optimized for each of the plurality of terminals 200_1, 200_2, and 200_3 by using the SADL document SADL_S will be described below. .

The server 100 grasps the characteristic information DC_1, DC_2, and DC_3 received from each of the plurality of terminals 200_1, 200_2, and 200_3, and stores each of the plurality of terminals 200_1, 200_2, and 200_3 among preset classes. Can be classified as either. For example, the server 100 may include a plurality of terminals as one of a first class of a base profile, a second class of a main profile, and a third class of a high profile. 200_1, 200_2, and 200_3) may be classified. Here, each class may be classified according to the performance and / or resolution of each of the plurality of terminals 200_1, 200_2, and 200_3. For example, the first class of the base profile corresponds to the performance and resolution of the mobile device, the second class of the main profile corresponds to the PC class device, and the third class of the high profile corresponds to the HD TV class device. Can be. Such classification criteria are exemplary, and criteria for classifying each class may be variously set according to a home network system.

The SADL document SADL_S integrates components corresponding to each class. Accordingly, the server 100 classifies each class of each of the plurality of terminals 200_1, 200_2, and 200_3 according to the characteristic information DC_1, DC_2, and DC_3 received from each of the plurality of terminals 200_1, 200_2, and 200_3. The components corresponding to the class may be selected and extracted from the workbook SADL_S to serve the applications SADL_C1, SADL_C2, and SADL_C3.

As such, the server 100 classifies each of the plurality of terminals 200_1, 200_2, and 200_3 into any one of a predetermined class, and appropriately based on the class in the SADL document SADL_S in which components corresponding to each class are integrated. Components can be selected and extracted easily and efficiently.

Meanwhile, when the characteristic information DC_1, DC_2, and DC_3 are described in more detail, the characteristic information DC_1, DC_2, and DC_3 may include a device capability factor or an external viewing environment factor. It may include.

The device performance factor may include, for example, elements related to input / output devices of terminals 200_1, 200_2, and 200_3, elements related to processing capability of terminals 200_1, 200_2, and 200_3, network elements, and the like. Elements related to the output device of the terminals 200_1, 200_2, 200_3 may be, for example, screen orientation, mono or landscape orientation such as screen resolution, portrait orientation or landscape orientation of the terminals 200_1, 200_2, 200_3. This may mean audio output performance such as stereo. Elements related to input devices of the terminals 200_1, 200_2, and 200_3 may refer to types of input devices such as a keyboard, a mouse, and a touch screen. The elements related to the processing capability may mean a MIME type supported by the terminals 200_1, 200_2, and 200_3, a script parser, a browser, a Java virtual machine, a flash player, a subtitle format, a supported DRM type, and a supported CAS type. . The network elements may mean a network interface unit that can be supported by the terminals 200_1, 200_2, and 200_3, an available bandwidth, and a waiting time. In addition, it may include a support language, a time in the region where the terminals 200_1, 200_2, and 200_3 are located, a location in the home, and an available power level of the terminals 200_1, 200_2 and 200_3.

The external environmental factors of the terminals 200_1, 200_2, and 200_3 may refer to elements related to the viewing environment, preferred user tastes, and information that may affect the presentation of the applications SADL_C1, SADL_C2, and SADL_C3 in addition to the device performance factors. Can be. For example, it may refer to viewing environment elements such as brightness, temperature, and noise, and user information such as user viewing environment information, user age, gender, privacy, and restriction elements of the applications SADL_C1, SADL_C2, and SADL_C3 to be shared.

According to the characteristic information DC_1, DC_2, and DC_3, the server 100 selects and extracts the appropriate components from the SADL document SADL_S to correspond to the applications SADL_C1, SADL_C2, SADL_C3 corresponding to the characteristic information DC_1, DC_2, and DC_2. ) Can be serviced.

Meanwhile, the server of FIG. 4 will be described in detail with reference to FIG. 6.

Referring to FIG. 6, the server 100 may include a request processing unit 100, a client performance storage unit 120, an application loader 130, and a preparser 140.

First, the request processor 110 receives an application request from the terminals 200_1, 200_2, and 200_3 and characteristic information DC_1, DC_2, and DC_3 of each of the terminals 200_1, 200_2, and 200_3. The class to which each terminal 200_1, 200_2, 200_3 belongs may be inquired to the client performance storage unit 120 by using the application request and the characteristic information DC_1, DC_2, and DC_3 of the terminals 200_1, 200_2, and 200_3. . The request processing unit 110 provides the information of the class provided as a result of the inquiry from the client performance storage unit 120 to the preparser 140 to be described later, so that the preparser 140 is suitable for each terminal 200_1, 200_2, 200_3. The applications SADL_C1, SADL_C2, and SADL_C3 may be generated. In addition, the request processing unit 110 may provide the application loader 130 with information about the application request.

The client performance storage unit 120 receives the characteristic information DC_1, DC_2, DC_3 from the request processing unit 110, extracts a parameter from the characteristic information DC_1, DC_2, DC_3, and uses the extracted parameter to determine the terminal ( 200_1, 200_2, 200_3) are determined. The parameter here represents the device performance factor and external environmental factor described above. That is, the client performance storage unit uses, for example, parameters representing device performance factors and external environmental factors, such that each terminal 200_1, 200_2, 200_3 may be configured to include a first class of a base profile, a second class of a main profile, and a high profile. Determining which class belongs to 3 classes, and provides information of the class to request processor. In addition, the client performance storage unit in order to efficiently process the request of each terminal (200_1, 200_2, 200_3) in the future, information on the performance of each terminal (200_1, 200_2, 200_3), parameter or characteristic information (DC_1, DC_2, DC_3) Or store information about the class. For example, when the ID of each terminal 200_1, 200_2, 200_3 or the user information or characteristic information DC_1, DC_2, DC_3 of the terminals 200_1, 200_2, 200_3 are provided, the client performance storage unit 120 performs a parameter extraction process. Without, the class information of the terminals 200_1, 200_2, 200_3 directly based on the IDs of the provided terminals 200_1, 200_2, 200_3 or the user information or characteristic information DC_1, DC_2, DC_3 of the terminals 200_1, 200_2, 200_3. May be provided to the request processing unit 110.

The application loader 130 searches for and downloads SADL documents for the requested contents, for example, the requested applications SADL_C1, SADL_C2, and SADL_C3, using the information on the application request. For example, the application loader 130 may search for and download a SADL document corresponding to the requested application from various SADL documents stored on the web. The application loader 130 provides the downloaded SADL document to the preparser 140. If the server 100 already has a corresponding SADL document, the server 100 may provide the SADL document owned by the server to the preparser 140 without searching the web.

The preparser 140 selects and extracts at least some components from the SADL document SADL_S provided from the application loader 130 by using the class information and / or the characteristic information DC_1, DC_2, and DC_3. The applications SADL_C1, SADL_C2, and SADL_C3 optimized to 200_2 and 200_3 may be generated. The preparser 140 may provide the generated applications SADL_C1, SADL_C2, and SADL_C3 to the terminals 200_1, 200_2, and 200_3 through the request processor 110.

Meanwhile, the preparser 140 edits a component of the workbook SADL_S using class information and / or property information DC_1, DC_2, and DC_3, or adds another component to execute the application SADL_C1, SADL_C2, SADL_C3. You can also create

That is, the server 100 generates suitable applications SADL_C1, SADL_C2, and SADL_C3 for each of the terminals 200_1, 200_2, and 200_3 and services them to each terminal 200_1, 200_2, and 200_3. The server 100 stores and manages the applications SADL_C1, SADL_C2, and SADL_C3 generated for each terminal 200_1, 200_2, and 200_3, and generates and stores them when there are future applications (SADL_C1, SADL_C2, SADL_C3) requests. And by managing the managed applications SADL_C1, SADL_C2, and SADL_C3, the efficiency of the shared service of the applications SADL_C1, SADL_C2 and SADL_C3 can be improved. Further, the server 100 manages the generated applications SADL_C1, SADL_C2, SADL_C3 for each terminal and user of the terminal based on the user information, and can efficiently service the customized application for each terminal and user upon application request. .

Hereinafter, with reference to FIGS. 7 and 8 will be described an application sharing method in another home network system according to another embodiment of the present invention. 7 is a conceptual diagram illustrating an application sharing method in another home network system according to another embodiment of the present invention, and FIG. 8 is a flowchart illustrating an application sharing method in another home network system according to another embodiment of the present invention. to be.

In this embodiment, unlike the previous embodiment, the server 100 transmits one SADL document SADL_S to a plurality of terminals 200_1, 200_2, 200_3, and each terminal 200_1, 200_2, 200_3 has its own characteristics. A part of the selected SADL document SADL_S is selected and extracted according to the information DC_1, DC_2, and DC_3 to generate and reproduce the applications SADL_C1, SADL_C2, and SADL_C3 optimized for the user.

7 and 8, each terminal 200_1, 200_2, and 200_3 receives an SADL document SADL_S from the server 100 (S810). For example, each terminal 200_1, 200_2, 200_3 requests the server 100 for applications SADL_C1, SADL_C2, and SADL_C3, and receives a SADL document SADL_S from the server 100 in response thereto.

Each terminal 200_1, 200_2, and 200_3 selects and extracts at least some components from the SADL document SADL_S according to its characteristic information DC_1, DC_2, and DC_3 (S820), and the application optimized for itself (SADL_C1). , SADL_C2 and SADL_C3) are generated. Each terminal 200_1, 200_2, and 200_3 reproduces the generated applications SADL_C1, SADL_C2, and SADL_C3 (S830).

FIG. 9 is a block diagram illustrating a configuration of terminals 200_1, 200_2, and 200_3 (hereinafter abbreviated as '200') constituting the network system of FIG. 1 or 4. The block diagram of the terminal 200 illustrated in FIG. 9 is a conceptual diagram of dividing the configuration of the terminal 200 according to a function according to the above-described embodiments. Therefore, each component constituting the terminal 200 may have a physical configuration that is substantially independent of each other, or two or more components may be physically integrally implemented. In addition, any one component may be physically implemented in a plurality of forms. Referring to FIG. 9, the terminal 200 includes an input unit 210, an output unit 220, a processor 230, and a transceiver unit 240.

The input unit 210 is for allowing a predetermined request to be input from the user. For example, a user may input type and / or format information about an application requested by the user through the input unit 210. The type of the input unit 210 may vary depending on the type or characteristics of the terminal 200. For example, the input unit 210 may be a touch pad, a touch screen, a keypad, a remote controller receiver, an input button, a joy stick, and the like, but only here. It is not limited. In the present embodiment, the user may input at least one of information about the type or format of the application desired by the user through the input unit 210.

The output unit 220 is a means for delivering the result processed by the processor 230 to the user. For example, the output unit 220 may include a graphic user interface (GUI) of an application played by the processor 230 or a display device for displaying content executed through the same or an audio device for outputting sound of the played content; Vibration means for vibrating the terminal 200 may be. The output unit 220 may be a display device and / or an audio device for delivering an application program executed by the processor 230 to a user.

The processor 230 is a means for performing general control and driving of a program necessary for the operation of the terminal 200. First, when a predetermined command is input from the user through the input unit 210, the processor 230 performs a predetermined process corresponding to the input command. For example, when information about a type and format of an application desired by a user is input, the processor 230 may generate an application request signal including the request of the user and transmit the generated application request signal to the transceiver 240. In this case, the processor 230 may include the characteristic information (Delivery Context, DC) of the terminal 200 in the application request signal and transmit it to the transceiver 240. The characteristic information DC is mentioned later.

The processor 230 may play or drive an application transmitted from the server 100 through the transceiver 240. If the application delivered from the server 100 is optimized for itself, that is, the server 100 selects and extracts only some components according to the characteristic information from the workbook SADL_S and transmits the optimized application, the processor 230 may simply drive the received application. On the other hand, when the content or application delivered from the server 100 is the workbook (SADL_S) itself, the processor 230 is optimized by selecting and extracting only some components from the workbook (SADL_S) by reflecting its characteristic information. You can also create an application and run it. Details thereof will be described later.

The transceiver 240 is a component that is responsible for the transmission and reception of a signal for communication with the server 100. The transceiver 240 may communicate directly with the server 100 or with the server 100 through the middleware 150 of the home network. In this embodiment, there is no particular limitation on the specific configuration or function of the transceiver 240, the communication protocol to be applied, and the like.

10 and 11 are diagrams for describing an application sharing method according to another embodiment of the present invention. 10 is a diagram illustrating an application sharing method according to another embodiment of the present invention, and FIG. 11 is a flowchart illustrating an application sharing method according to another embodiment of the present invention. In the present embodiment, the server 100 transmits one SADL document SADL_S to a plurality of terminals 200_1, 200_2, and 200_3, and each terminal 200_1, 200_2, 200_3 has its own characteristic information DC_1, DC_2, The above-described embodiment is different in that it selects and extracts a part of the received SADL document SADL_S according to DC_3 to generate and execute the applications SADL_C1, SADL_C2, and SADL_C3 optimized for itself. This will be described in more detail below.

10 and 11, each terminal 200_1, 200_2, 200_3 receives an SADL document SADL_S from the server 100 (S810). To this end, each terminal 200_1, 200_2, and 200_3 requests the server 100 for applications SADL_C1, SADL_C2, and SADL_C3. At this time, each terminal 200_1, 200_2, 200_3 does not necessarily include its own characteristic information (DC_1, DC_2, DC_3) in the request signal transmitted to the server 200. According to an embodiment, each terminal 200_1, 200_2, 200_3 includes its own characteristic information DC_1, DC_2, DC_3 in a request signal transmitted to the server 100 or each terminal 200_1, 200_2, The server 100 may include information that the server 100 has the capability of generating the applications SADL_C1, SADL_C2, and SADL_C3 reflecting its own characteristic information DC_1, DC_2, and DC_3 in the SADL document SADL_S. Can also be sent. As such, when the terminals 200_1, 200_2, and 200_3 transmit the application signals SADL_C1, SADL_C2, and SADL_C3, the terminal 200_1, 200_2, and 200_3 receive the SADL document SADL_S from the server 100 in response thereto.

Each terminal 200_1, 200_2, and 200_3 selects and extracts at least some components from the SADL document SADL_S according to its characteristic information DC_1, DC_2, and DC_3 (S820), and the application optimized for itself (SADL_C1). , SADL_C2 and SADL_C3) are generated. To this end, each terminal 200_1, 200_2, 200_3 selects and extracts at least some components from the SADL document SADL_S according to its characteristic information DC_1, DC_2, DC_3 (S820), and the application optimized for itself. Means may be provided to perform a function of generating (SADL_C1, SADL_C2, SADL_C3). The name of such means is not particularly limited and may be performed by a pre-parser or the processor 230 of FIG. 9. Alternatively, each terminal 200_1, 200_2, 200_3 may further include a component or a function unit for performing such a function in the configuration diagram of FIG. 9. Each terminal 200_1, 200_2, and 200_3 executes the generated applications SADL_C1, SADL_C2, and SADL_C3 (S830).

As described above, according to the exemplary embodiment of the present invention, the server 100 does not consider the characteristic information DC_1, DC_2, and DC_3 of each terminal 200_1, 200_2, and 200_3, but not to all the terminals 200_1, 200_2, and 200_3. Provide the same data, SADL document (SADL_S). In this case, since unnecessary data is also received from the viewpoint of the terminals 200_1, 200_2, and 200_3, the network burden or the burden of the terminals 200_1, 200_2, and 200_3 may be increased. However, in the embodiment of the present invention, since the same data is transmitted to all terminals 200_1, 200_2, and 200_3, the service may be simplified and the burden on the server 100 may be minimized.

100: Server
110: request processing unit
120: client performance store
130: application loader
140: preparser
150: middleware
200_1, 200_2, 200_3: terminal
210: input unit
220: output unit
230: Processor
240: transceiver

Claims

In the method of serving an application suitable for each of a plurality of terminals,
Transmitting an application request signal including its characteristic information and type information of a requesting application to a server; And
And receiving from the server an application generated from the selected component extracted and selected according to the property information in a workbook corresponding to the type information of the application from the server.

The method of claim 1,
The integrated document is an application service method, characterized in that the components written in a markup language for each of the plurality of terminals to play the application respectively.

The method of claim 1,
The characteristic information may include at least one of a resolution of the terminal, a bandwidth of the terminal, a location of the terminal, a time of the region where the terminal is located, user information of the terminal, a security setting degree of the terminal, and a limiting factor of the application. Application service method, characterized in that.

The method of claim 1,
Receiving the application type information desired to be serviced by a user; And
And generating the application request signal based on the input application type information.

An input unit for inputting an application type desired by a user;
A processor for generating an application request signal including application type information and characteristic information of a terminal based on the application type input through the input unit, and executing an application included in an application response signal received from a server;
A transceiver for transmitting the application request signal generated by the processor to a server and receiving an application response signal including an application from the server; And
And an output unit for outputting an application executed in the processor to the user.

An input unit for inputting an application type desired by a user;
A processor for generating an application request signal including application type information based on the application type input through the input unit, and executing an application generated in response to the application request signal;
A transmitter / receiver for transmitting the application request signal to a server and receiving an application response signal including an integrated document corresponding to the application type from the server;
A pre-parser which selects and extracts some components according to its characteristic information by using the integrated document received by the transceiver and generates an application executed by the processor; And
And an output unit for outputting an application executed in the processor to the user.

The method according to claim 6,
And the pre-parser is included in the processor.