KR100714504B1 - System and method for searching contents in personal terminals using wired and wireless internet - Google Patents

Abstract

The present invention relates to a content retrieval system and method for a personal terminal using a wired / wireless internet, wherein a user who uses a search to remotely request a search for content stored in the personal terminal or download the searched content by inputting a search query via the wired / wireless internet. The terminal provides a search agent to a personal terminal, registers terminal information, receives a search query from the search-enabled personal terminal requesting a search by checking the status of the registered personal terminal, and transmits the search query to the personal terminal to search from the personal terminal. A search relay system that collects and sorts the results and transmits the search results to the search user terminal, and downloads and installs the search agent from the search relay system, collects content information stored in the terminal by driving the search agent, Terminal Stores the generated index information and the Massachusetts, and analyzed by receiving a search query received from the repeater search system performs the search, and includes a search target terminal for transmitting the search result to the search relay system.

Personal terminal, contents, search relay system, integrated search, index information, ubiquitous

Description

System and method for searching contents in personal terminals using wired and wireless internet}

1 is a schematic diagram of a content retrieval system of a personal terminal using a wired or wireless Internet according to the present invention.

2 is a block diagram of a content retrieval system of a personal terminal using a wired or wireless Internet according to the present invention.

3 is a schematic block diagram of a gateway server included in a search relay system of the present invention.

4 is a schematic block diagram of an authentication server included in a search relay system of the present invention.

5 is a block diagram showing the components of a search agent installed in a search target terminal of the present invention.

6 is a flowchart illustrating an embodiment of a method for searching contents of a personal terminal using a wired or wireless Internet according to the present invention.

7 is a detailed flowchart of remote terminal content retrieval in the content retrieval method of the personal terminal using the wired or wireless Internet according to the present invention.

8 is a flow of forming content index information in a search target terminal according to the present invention.

9A is an exemplary screen of an integrated search according to a content search system and method of a personal terminal using a dedicated search client on a wired or wireless Internet according to the present invention.

FIG. 9B is an exemplary screen of full-text extraction of a keyword portion for a specific remote document search result from the search result screen of FIG. 9A.

10 is an exemplary screen of an integrated search according to a content search system and method of a personal terminal using an internet web browser according to the present invention.

`` Explanation of symbols for main parts of drawings ''

100: search relay system 120: gateway server

122: relay unit 124: IP mapping unit

126: terminal status check unit 128: integrated search unit

128a: query propagation module 128b: search result collection module

128c: search result sorting module 140: authentication server

142: authentication key generation unit 144: authentication unit

146: authentication key transmission unit 210: content storage unit

211: information collecting / updating unit 212: information extraction unit

213 syntax / stemming section 214 index section

215: index information storage unit 216: user authentication unit

217: reception control unit 218: query analysis unit

219: search performing unit 220: transmission control unit

200: search target terminal 300: search using terminal

The present invention relates to a content retrieval system and method for a personal terminal using a wired or wireless Internet, and more particularly, to search for content stored in a personal terminal device of a user including a PC or a PDA anytime, anywhere in a ubiquitous wired or wireless Internet environment. It relates to a content retrieval system and method of a personal terminal to be used.

In general, the search system includes an Internet search system provided by a famous Internet portal site, and Desktop Search, which has been introduced by competitors since it was first released by Google recently.

Internet search system stores crawler (web-bot) that collects website information and various filters and indexing information for indexing full text or music or video meta information such as MS Office or PDF document. It consists of DB or file system server and web server providing search service.

While the Internet search system is for searching information of Internet websites around the world, Desktop Search is a search engine for searching contents of a personal PC.

The Desktop Search consists of a crawler that collects content stored in a personal PC, various filters for indexing full text and meta information, an index file system, and a user interface for inputting a search query. .

Recently, the reason why the Desktop Search has appeared is that the documents and media contents produced by individuals are rapidly increasing due to the advent of various digital terminal devices and the proliferation of mini homepages and blogs, and the storage of hard disks and memories. This is because the capacity of devices has increased greatly, and the amount of digital content managed by individuals is enormous.

However, in terms of personal content management, current search systems have many limitations.

First, while the Internet search system can search only the content published on the Internet web server, it is not desirable to allow the personal content to be searched on the Internet web server not only in terms of technology but also in terms of personal information protection.

On the other hand, the Desktop Search supports personal content management in that the content is searched in the personal PC, but can only be searched in a computer terminal in the same place where the person is currently located.

For example, the desktop search cannot search the content stored on the PC in the home or office from the outside through the Internet.

In addition, when mobile and mobile Internet services such as WiBro Wireless Broadband and High-Speed Down Link Packet Access (HSDPA), which are scheduled to be commercialized in 2006, are launched, not only PDAs and notebook PCs, but also mp3 players, Portable Media Players (PMPs), In mobile terminals such as digital cameras, the possibility of mounting portable and mobile Internet communication chips is increasing.

Accordingly, the necessity of searching for personal contents using the terminal device will increase, and as the storage capacity of these terminal devices increases, a system and a method capable of searching an integrated content even in the terminal device are required.

The present invention has been made to solve the problems of the conventional search system as described above, a content retrieval system of a personal terminal that can be used to search the contents of various personal digital terminal devices, including personal PCs and PDAs from the remote site to the wired and wireless Internet, and It is to provide a method.

In addition, an object of the present invention is not only in a wired and wireless Internet environment, but also in a dynamic or private IP network environment within a firewall or a NAT (Network Address Translator), Bluetooth, Zigbee, InfraRed port, and RFID ( It aims to enable integrated search of contents in personal digital terminal devices connected to ad-hoc network environments such as short-range wireless interfaces such as Radio Frequency Idnetification and wired serial / parallel interfaces such as USB and IEEE1394.

In order to achieve the above object, the content retrieval system of a personal terminal using the wired / wireless internet inputs a search query word through the wired / wireless internet to remotely request a search for content stored in the personal terminal or to retrieve the retrieved content. Search using for the download personal terminal, providing a search agent to the personal terminal, registers the terminal information, receives the search query from the search using personal terminal to request the search by checking the status of the registered personal terminal to be sent to the personal terminal A search relay system which collects and sorts the search results from the personal terminals, and transmits the search results to the search-using personal terminal, and downloads and installs the search agent from the search relay system. Can be stored content information And a search target terminal for generating and storing content index information of the personal terminal, receiving, interpreting and performing a search query received from the search relay system, and transmitting the search result to the search relay system.

On the other hand, the content search method of the personal terminal using the wired or wireless Internet according to the present invention, accessing the search relay system from the search using personal terminal to perform a user login by performing a user authentication, search in the search using personal terminal is completed user authentication Requesting a search by inputting a query, checking a connection state for each search target terminal in the search relay system, transmitting authenticated user information to a search target terminal in a connected state, and transmitting the search query term to a search target terminal; Authenticating the user according to the transmitted user information and receiving the search query in the search target terminal; analyzing the received search query and searching the index information previously formed and stored in the search target personal terminal; Searching for information about the results And transmitting to the search using terminal the search result by the search relay system.

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

1 is a schematic diagram of a content retrieval system of a personal terminal using a wired or wireless Internet according to the present invention.

In FIG. 1, a content retrieval system of a personal terminal using a wired / wireless internet according to the present invention has personal terminals of users subscribed to a search relay system for using a search service in an office, home, remote area, or on the move. It shows that it lies.

Each of the personal terminals has a storage device, and various contents such as a video file and a document and a music file are respectively stored.

The present invention is to set up a search target terminal or a search using terminal among the various personal terminals, respectively, so that the content stored in the search target personal terminal can be searched from the search using personal terminal or the content can be downloaded and used.

For example, when a mobile terminal of a user who is moving is referred to as a search using terminal 300, a computer which is a personal terminal in a home or office that is a search target terminal 200 by the search relay system 100 through a wired or wireless Internet. Or you can search or download documents, music files, etc. stored in the PDA.

At this time, the personal terminal connected to the wireless port may be the same as the search target terminal 10.

Here, in the content retrieval system of the personal terminal using the wired or wireless Internet according to the present invention, the search-use personal terminal 300 or the search target personal terminal 200 is a PC, PDA, mobile phone, digital camera, smart phone, PMP In addition, the MP3 player may include various other personal digital terminals, and the search system according to the present invention is not limited to the "personal" terminal, and the scope thereof may be expanded to various terminals other than the "personal" terminal.

The configuration of the content retrieval system of the personal terminal using the wired or wireless Internet according to the present invention is as shown in FIG.

3 is a schematic block diagram of a gateway server 120 included in a search relay system of the search system, and FIG. 4 is a schematic block diagram of an authentication server 140 included in the search relay system. .

Referring to FIG. 2, a content search system of a personal terminal using a wired / wireless internet according to the present invention provides a method for remotely requesting a search for content stored in a personal terminal or downloading the searched content by inputting a search query through the wired / wireless internet. The search query personal terminal 300 provides a search agent 250 to the personal terminal, registers terminal information, checks the status of the registered personal terminal, and searches a search query from the search personal terminal 300 requesting a search. A search relay system 100 that receives and transmits the search results to the personal terminal, collects and sorts the search results from the personal terminal, and transmits the search results to the search-enabled personal terminal, and the search agent 250 from the search relay system 100. Download and install), and the content information stored in the terminal by driving the search agent 250 Collecting and generating content index information of the personal terminal, receiving and interpreting and performing a search query received from the search relay system 100, and transmitting the search result to the search relay system 100. It includes a search target terminal 200.

The search relay system 100 may include an authentication server 140 for authenticating a user for a content search request or using a searched content, and a user database 160 in which personal information of a user registered in the search relay system 100 is stored. ) And the terminal status confirming unit 126 for checking the connection state between the search target terminal 200 and the searched query word to the personal terminals, collecting and sorting the search results to the search using terminal 300. The gateway server 120 having the integrated search unit 128 for transmitting.

In this case, the gateway server 120 includes a relay unit 122 and an IP so as to search and download or use content stored in the search target terminal 200 in a dynamic or private Internet Protocol (IP) network environment within a firewall or NAT. The mapping unit 124 may further include.

The integrated search unit 128 includes a query propagation module 128a, a search result collection module 128b, and a search result sorting module 128c.

The query propagation module 128a of the integrated search unit 128 propagates a search query transmitted from the search relay system 100 to the search target terminal 200 to a plurality of search target personal terminals. To perform.

The search result collection module 128b collects the search results after performing a search in the plurality of search target terminals 200 to which the search query word has been propagated.

In addition, the collected search results are sorted by the search result sorting module according to a user-specified search sorting condition such as similarity with respect to the requested search query and contents last modified time (date order). Here, the similarity can be obtained by the ratio of the frequency at which the search query appears in the extracted text information or by a more complicated statistical method.

3 and 4, the IP mapping unit 124 of the gateway server 100 maps the terminal network / IP information to secure a connection path in case of being in a firewall environment, and the authentication server 140 Authenticate the user registered in the authentication unit 144, the authentication key generation unit 142 generates an authentication key for the user terminal and transmits the authentication key transmission unit 146 to the search target terminal 200 Give it.

FIG. 5 is a block diagram illustrating the components of the search agent 250 installed in the search target terminal 200.

A user registered to the search relay system 100 to use a search service receives an ID and a password, and provides the search agent 250 to the user's personal terminal in the search relay system 100.

The search agent 250 is operated in the search target terminal 200 and registers the terminal information in the search relay system 100 so that the search relay system 100 is connected according to the terminal information. When the terminal IP information is mapped and there is a connection request from the search using terminal 300 which has a later search request, a connection path is formed by the relay unit 122 and the IP mapping unit 124 of the gateway server 120. Is given.

On the other hand, in the search using terminal 300, a search-only crite program is installed and a search query is input according to a P2P method, or a search query is input through an internet web browser.

Here, the search agent 250 may include not only a module or program for performing a search in the search target terminal 200, but also the search-only client program that may be performed in the search using terminal 300. to be.

Referring to FIG. 5, the search agent receives a portion for forming content index information and an actual search query to be used when performing a search with contents in the search target terminal 300 to perform a search and transmit a search result. It is composed of parts and is divided into lines in FIG.

In FIG. 5, as a part for forming the content index information, an information collection / update unit for collecting and updating full-text or meta information from contents stored in the personal terminal 200 to be searched. 211, from the collected information, by content or file type, that is, MS Office or PDF document, document file such as binary text, HTML text, music file such as MP3, video file (mpg, avi, rm, wmv) Information extraction unit 212 for classifying and extracting information, and analyzing the information extracted by the information extraction unit 212 by syntax and morpheme (for example, dividing into nouns or investigations corresponding to keywords). Storing the index information formed in the index unit 214 and the index unit 214 which form a terminal content index from the information analyzed by the syntax / morpheme analysis unit 213, the syntax / morpheme analysis unit 214. Index Beam and a storage unit 215. The

Here, as shown in FIG. 5, the information collection / update unit 211 reads and collects information from the content storage unit 210 in which content is stored, and the content storage unit 210 is embedded in a personal terminal. Hard disk or memory.

In addition, FIG. 5 is a part for receiving a real search query and performing a search and transmitting a search result. The user authentication unit 216 for authenticating a user requesting a content search query to a search target terminal, in the search relay system. A reception control unit 217 for controlling the reception of the received search query, a query analysis unit 218 for analyzing the received search query, and a search execution unit 219 for searching and searching index information according to the parsed query And a transmission control unit 220 collecting searched index information and controlling transmission of a search result to the search relay system.

Now, in the embodiment of the content retrieval system of the personal terminal using the wired or wireless Internet according to the present invention described above, the retrieval method will be described in detail.

6 is a flowchart illustrating an embodiment of a method for searching contents of a personal terminal using a wired or wireless Internet according to the present invention.

Referring to FIG. 6, a content searching method of a personal terminal using a wired / wireless internet according to the present invention undergoes the following process.

First, the search access personal terminal 200 accesses the search relay system 100 and logs in a user to perform user authentication (S61).

Here, the user is an individual who is registered with the search relay system 100 and has been given an ID and password. When the user searches for content, the user is authenticated by the ID and password.

Second, the user inputs a search query in the search-use personal terminal 300 where user authentication is completed and requests a search (S62).

Here, the input process of the search query is to install a search-only clit program in the search personal terminal 300 to enter a search query in accordance with a P2P method or to access the search relay system 100 through an Internet web browser to display a site screen. You enter a search query in.

Third, the search relay system 100 checks a connection state for each search target terminal 200, transmits authenticated user information to the search target terminal 200 being connected, and transmits the search query to the search target terminal 200. (S63).

The user information authenticated by the search relay system 100 is used to perform the authentication process again in the search target terminal 200.

Fourth, the search target terminal 200 authenticates the user according to the transmitted user information and receives the search query (S64).

Therefore, by re-confirming whether access to the search target personal terminal 200 is allowed using the ID and password of the user who has been authenticated in the search relay system 100, the personal security may be reliably maintained.

In addition, a user accessing the search target personal terminal 200 may be shared and used by not only the owner of the terminal but also a friend or family member.

Fifth, the received search query is interpreted to search for index information stored in advance in the search target personal terminal 200 (S65).

The search agent 250 generates index information from contents stored in the content storage unit 210 embedded in the search target personal terminal 200, stores the index information in the index information storage unit 215, and performs the search execution unit. In operation 220, a search is performed from the index information storage unit 215.

 Sixth, the step of transmitting the search result of the index information to the search relay system is performed (S66).

As a result of the search performed by the search execution unit 219 in the index information storage unit 215 generated and stored in the search target personal terminal 200, the transmission control unit 220 modifies the searched file list by file type, size, and modification. It is transmitted to the search relay system 100 together with date information.

Finally, the search relay system 100 transmits the search result to the search using terminal 300 (S67).

7 is a detailed flowchart of a remote terminal content search by the content search method of the personal terminal using the wired or wireless Internet described above.

The user of the search using personal terminal 300 is connected to the search relay system 100 to log in a user and receive user authentication (S71 and S72).

At this time, if the authentication fails, since the unauthenticated user attempts to access the personal terminal, the search process proceeds to the end.

If the user authentication is successful, the search-use personal terminal 300 requests a search by inputting a search query (S73).

The search relay system 100 receiving the search query checks the access status of the user terminals, and the search process for the terminal that is not confirmed as the connected state is terminated (S74 and S75).

The user login information is transmitted from the search relay system 100 to the search target terminal 200 currently connected to perform user authentication (S76 and S77).

If authentication fails in the user authentication process, the search procedure is terminated as well.

In addition, the search relay system 100 transmits a search query to the plurality of search target terminals 300, and the search target terminals 200 receive a search query (S78 and S79).

Each of the search target terminals 200 that receive the search query is interpreted by the search agent 250, performs a search, and passes the search result to the search relay system (S80, S81, S82).

In the search relay system 100, the search results delivered from the plurality of search target terminals 200 are collected and collected and sorted according to a user-specified search sorting condition such as similarity, content final modification time (date order), This is transmitted to the search using the request terminal 300 (S83, S84).

The search using terminal 300 receives the integrated search result to search or download the content (S86).

 8 is a flow of forming content index information in the search target terminal 200.

First, the search relay system 100 provides a search agent to a personal terminal registered as a user (S41).

The search target terminal 200 downloads a search agent and installs it in the terminal, and when the installation is performed, the terminal information is registered to the search relay system 100 by transmitting terminal information to the terminal to be used by the user (S42). , S43, S44).

In addition, the search relay system 100 maps terminal network / IP information to secure a connection path in case of being in a firewall environment, generates an authentication key for a user terminal, and provides the terminal 200 with the search target terminal 200. If so, the search target terminal 200 stores the user authentication key (S45, S46, S47, S48).

The search agent 250 installed in the search target terminal 200 generates index information on the content stored in the terminal, and issues an update command when there is a change in the content, such as storing or deleting new content (see FIG. S49).

Accordingly, the information collection / update unit 211 of the search agent 250 collects and updates full-text or meta information from content stored in the search target personal terminal 200. (S50).

In addition, the information extraction unit 212 of the search agent 250 by the content or file type from the collected information, that is, MS Office or PDF documents, text files such as binary text, HTML text, music such as MP3 The information is classified into a file and a video file to extract information (S51).

In addition, the information extracted by the information extraction unit 212 is analyzed by the syntax / morpheme analysis unit 213 into a syntax and morpheme (S52).

The information analyzed by the syntax / morpheme analysis unit 214 forms the content index information of the personal terminal 200 to be searched by the index unit 214 (S53), and the index information formed by the index unit 214. Is stored in the index information storage unit 215 to prepare for a search according to a search query (S54).

9A is an exemplary screen of an integrated search according to a content search system and method of a personal terminal using a dedicated search client on a wired or wireless Internet according to the present invention, and FIG. 10 is a content search system of a personal terminal using an internet web browser according to the present invention. It is an example search screen integrated according to and method.

FIG. 9A illustrates a result of inputting a search query word according to a P2P scheme by installing a dedicated search clit program in a search using terminal 300 located remotely, and FIG. 10 shows a search using the Internet web browser. The search query system 100 is connected to the search relay system 100, and a search query is input from the site screen to search.

9B is an example of extracting a full-text search keyword portion for a specific remote document search result from the search result screen of FIG. 9A.

In the example screen of FIG. 9A, the current search using terminal 300 is displayed as PLUTO (local), which is a local computer, and the remote computer is included in the My Computer list as SUN.

At the bottom of the screen, the SUN peer, which is a remote computer, is online and shows that it is currently connected.

At this time, if a search query of "customer management" is entered in the search box on the lower left, the content on the local and remote terminals is simultaneously searched on the right screen and the integrated search results are displayed.

In the search results, the contents are displayed at the same time as the file name, size, type, date modified, and computer name, and are sorted and displayed according to the order of numerical similarity.

Clicking on a particular file, the keyword portion is highlighted and extracted in full text as shown in Fig. 9B.

On the other hand, FIG. 10 shows that when the search using terminal 300 accesses the search relay system 100 through an internet web browser and inputs a search query in the search box on the right side of the site screen, the search results are displayed on the entire computer and the local computer. PLUTO, the remote computer, and all the contents of SUN are displayed along with the file name, size, modification time, and terminal name.

Although the invention has been described in detail only with respect to the specific embodiments described, it will be apparent to those skilled in the art that various modifications and variations are possible within the spirit of the invention, and such modifications and modifications belong to the appended claims. will be.

The content retrieval system of a personal terminal using the wired / wireless Internet of the present invention provides convenience and efficiency for personal content management in the ubiquitous era by enabling the user to search and use personal content anytime and anywhere in response to the spread of various multimedia personal terminal devices and portable and mobile communication infrastructures. Greatly increase.

In addition, the present invention can be applied to various types of personal digital terminal devices, and can be used not only in wired and wireless Internet environments but also in various heterogeneous short-range wired and wireless communication environments such as ad hoc networks. In addition to contributing, it will contribute to the expansion of the telecommunications market by being suitable for portable and mobile Internet communication environments such as WiBro and HSDPA.

In addition, while protecting the user's personal content or personal information, if you want to share the content of the personal terminal device with friends and family can easily find and use the content for the shared content.

Claims (11)

A search-enabled personal terminal for inputting a search query via the wired / wireless internet to remotely request a search for content stored in the personal terminal or to download the searched content; Providing a search agent to a personal terminal, registering terminal information, receiving a search query from the search-enabled personal terminal requesting a search by checking the status of the registered personal terminal, and transmitting the search query to the personal terminal, thereby indexing the searched content from the personal terminal. A search relay system for collecting and sorting information and transmitting the searched content index information to the search using personal terminal; And Download and install the search agent from the search relay system, collect content information stored in the terminal by driving the search agent, generate and store content index information of the personal terminal, and store the search query received from the search relay system. A search target terminal for receiving, interpreting and performing a search, and transmitting the searched content index information to the search relay system, wherein the search relay system includes: An authentication server for user authentication of a content search request or searched content use; A user database in which personal information of a user who is registered as a member of the search relay system is stored; And It includes a gateway server having a terminal status check unit for confirming the connection status of the search target terminal and the integrated search unit for delivering the requested query to the personal terminals, collecting and sorting the searched content index information and transmitting to the search using terminal The search agent installed in the search target personal terminal, An information collection / update unit for collecting and updating full-text or meta information from contents stored in the search target personal terminal; An information extraction unit for extracting information for each content or file type from the collected information; A syntax / morpheme analysis unit analyzing the information extracted by the information extraction unit into syntax and morphemes; An index unit which forms a terminal content index from the information analyzed by the syntax / morpheme analysis unit; And And an index storage unit for storing index information formed by the index unit. delete The method of claim 1, The integrated search unit, A query propagation module for propagating a search query transmitted from the search relay system to a plurality of search target personal terminals; A search result collection module for performing a search in a plurality of search target personal terminals to which the search query has been propagated and collecting the search results; And And a search result sorting module for sorting the collected search results according to a user-specified search sorting condition such as similarity, requested content last modified time order, content last modified date, and the like. Content retrieval system of the personal terminal using. delete The method of claim 1, The search agent, A user authenticator configured to authenticate a user requesting a content search query to a search target terminal; A reception control unit controlling reception of a search query word transmitted from the search relay system; A query parser that interprets the received search query; A search execution unit for searching and searching index information according to the parsed query word; And And a transmission control unit for collecting the searched index information and controlling the transmission of the search result to the search relay system. The method of claim 1, The personal terminal using the wired / wireless internet of the personal terminal using the wired / wireless internet, characterized in that a search-only clit program is installed in the search-use personal terminal and a search query is input according to a P2P method, or a search query is input by accessing a search relay system through an internet web browser. Content Search System. The method of claim 1, The search using personal terminal or the search target personal terminal comprises a PC, PDA, mobile phone, digital camera, smart phone, PMP, MP3 player content search system of the personal terminal using the wired and wireless Internet. The method of claim 1, Content retrieval system of a personal terminal using a wired or wireless Internet, characterized in that within the firewall, dynamic IP inside the NAT or private IP environment. Performing user authentication by accessing a search relay system from a search using personal terminal and logging in a user; Requesting a search by inputting a search query in a search using personal terminal of which user authentication is completed; Checking a connection state for each search target terminal in the search relay system, transmitting authenticated user information to a search target terminal in a connected state, and transmitting the search query word to a search target terminal; Authenticating a user according to the transmitted user information and receiving the search query in the search target terminal; Parsing the received search query to retrieve the index information that is previously formed and stored in the search target personal terminal;  Transmitting a result of searching the index information to the search relay system; And The search relay system includes transmitting the search results to a search using terminal, and forming and storing index information in the search target personal terminal, Installing a search agent in the search target terminal and registering user and personal terminal information in a search relay system; Collecting and updating full text or meta information from contents stored in the search target personal terminal; Extracting information for each content or file type from the collected information; Analyzing the extracted information in syntax and morphemes; Forming a terminal content index from the analyzed information; And And storing the formed index information. Content search method of a personal terminal using a wired or wireless internet. delete The method of claim 9, And collecting, by the search relay system, search results received for each search target terminal and sorting the search results according to a user-specified search sorting condition such as similarity, content last modified time order, and content last modified date order. Content retrieval method of a personal terminal using a wired or wireless Internet.

Images