JP2008065577A - Document retrieval system, document retrieval program and computer-readable recording medium recorded with document retrieval program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that it is difficult to accurately narrow down desired patent gazettes from retrieved foreign patent official gazettes. <P>SOLUTION: The user of a user terminal 10 retrieves Chinese patent gazettes by performing access to a patent information providing server 20 having a patent information database in which Chinese patent gazettes are stored. Prior to retrieval, the user performs access to the patent information providing server 20, and retrieval reference words and phrases as words and phrases in Chinese which are highly likely to be included in a Chinese patent document to be retrieved and related words and phrases as translations in Japanese are registered so as to be associated with each other. When the retrieved Chinese patent gazettes are displayed on a display device 11, and the registered retrieval reference words and phrases are included in the retrieved Chinese patent gazettes, the related words and phrases associated with the words and phrases are displayed with the Chinese patent gazettes. The related words and phrases are displayed in the neighborhood of the corresponding retrieval reference words and phrases in the Chinese patent gazettes. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a document search system, a document search program, and a recording medium suitable for searching for documents described in a first country language. In particular, the present invention relates to a document search system for searching for a search document corresponding to a search condition from a database in which a plurality of documents described in a first country language are stored in a first country language document storage unit.

  When developing a new technology, it is important to avoid infringement of the rights of others, such as patent rights, and establish exclusive rights to the new technology. As a result, it is possible to make its position superior in the market. For that purpose, depending on the technology to be developed, the patent gazettes of not only the domestic but also the world are searched, and the relevance of the disclosed patented invention or the invention of the invention with the technology that is aimed at, ie infringement or patent It is necessary to judge sex.

  However, patent gazettes around the world are generally written in different languages for each country. Therefore, if a person who conducts a search for a gazette is not familiar with the language of each country, the search requires a great deal of labor, that is, time and cost. Those who can understand technically by reading technical documents written in Chinese or Korean instead of English are rare in Japan.

  Therefore, the use of a foreign language translator can be assumed to reduce such labor. FIG. 20 is a block diagram showing a schematic configuration of a patent information system disclosed in Patent Document 1 as a search for patent publications using a foreign language translator. In this conventional system 500, the user terminal 4 is connected to the patent information providing server 1 and the translation server 3 through a LAN (local area network) 5 or the Internet 6. The patent information providing server 1 is connected to a patent information database 2. The LAN 5 and the Internet 6 are connected through a router 7 and a firewall 8.

  The patent information database 2 stores Chinese patent gazettes written in Chinese. The patent information providing server 1 searches the patent gazette stored in the patent information database 2 for a document including the keyword based on the keyword transmitted from the user terminal 4. When the keyword transmitted from the user terminal 4 is in Japanese, the patent information providing server 1 automatically transmits the keyword to the translation server 3 to translate the keyword into Chinese. After that, a search for patent publications is performed. The patent information providing server 1 displays the patent publication extracted by the search on the browser of the user terminal 4. If there is an instruction from the user, the patent information providing server 1 transmits the extracted patent gazette to the translation server 3 for translation, receives the translated text, and displays it on the browser of the user terminal 4.

As a result, for example, as shown in FIG. 21, together with the retrieved summary of the patent gazette in Chinese, the Japanese translation is displayed side by side on the display screen 9 of the user terminal 4. As described above, the conventional system 500 uses a foreign language translator connected to the network to translate the search keyword and the patent publication obtained by the search.
JP 2005-141445 A

  However, in the conventional system 500, a user who is not familiar with Chinese instructs the translation of the patent gazette obtained by the search, and the important purpose of the patent gazette is to read the translated text obtained by the instruction. It is not possible to easily determine whether the document is a valid document. That is, it takes time for the user to determine whether or not the document is a desired document. Moreover, even though machine translation is usually charged for usage, the cost of translation is wasted if the translation is not relevant and the developer is not closely related to the new technology that the developer is aiming for. It becomes. Furthermore, since machine translation has many mistranslations and low reliability, if a translator is requested to perform precise translation instead of machine translation, useless cost is further increased.

  The present invention has been made in view of the above problems, and relies on full-text translation to determine whether a document retrieved from a database in which documents written in a language that the user is not familiar with is a desired document. It is an object of the present invention to provide a document search technique that makes it possible to make a simple determination without making it possible to narrow down in advance a document to be translated for a more precise determination.

  In order to solve the above problems and achieve the above object, according to the first aspect of the present invention, a plurality of documents described in a first country language are accumulated in a first country language document storage unit. This is a document retrieval system that retrieves a retrieval document corresponding to a retrieval condition from a stored database. The document search system includes an input unit, a related phrase storage unit, a search reference phrase extraction unit, and a display unit. The input means inputs the search reference phrase in the first country language and the related phrase in the second country language of the search reference phrase in association with each other. The related phrase storage means stores the search reference phrase and the related phrase input by the input means in association with each other. The search reference phrase extraction unit extracts a search reference phrase stored in the related phrase storage unit from the search document. The display means displays a related word / phrase related to the search reference word / phrase in the vicinity of the search reference word / phrase extracted by the search reference word / phrase extraction means by referring to the stored contents of the related word / phrase storage means.

  In order to use the document search system with this configuration, the user first selects a phrase in the first country language for determining whether or not the searched document is a desired document as a search reference phrase, and the search reference phrase and its search phrase The related words and phrases in the second country language are associated with each other and input by the input means. The related phrase is, for example, a phrase that the user recognizes as being related, in addition to the translated word of the search reference phrase and similar words of the translated word. The user is not familiar with the first country language but is familiar with the second country language. The search reference phrase and the related phrase input by the input means are associated with each other and stored in the related phrase storage means. More preferably, the related phrase storage means can store not only a single search reference phrase but also a plurality of search reference phrases and their related phrases.

  When a user searches for a document using the document search system, the user inputs a search condition to the document search system. The search condition is, for example, a keyword for keyword search. The document search system searches the database for a search document corresponding to the input search condition. The search reference phrase stored in the related phrase storage unit is extracted from the searched search document by the search reference phrase extraction unit. By referring to the stored contents of the related phrase storage means, the display section displays related phrases related to this search reference phrase in the vicinity of the search reference phrase extracted by the search reference phrase extraction means.

  The search reference phrase registered by the user is a phrase for determining whether or not the searched document is a desired document. If the document is a patent gazette, for example, it is a phrase closely related to the new technology aimed at by the user. is there. Therefore, the user can obtain the translated text of the search document or the translated text has already been obtained by visually observing that the related phrase is displayed near the search reference phrase by the display means. In addition, it is possible to easily determine whether or not the search document is a document desired by the user without relying on the translated sentence. Here, “simple” means that the determination precision is not necessarily high, but it is quick. Particularly, since the related phrase is displayed in the vicinity of the search reference phrase, the user can check the search reference phrase corresponding to the related phrase. Further, the user can narrow down in advance a document to be translated from among a plurality of search documents by referring to the displayed search reference phrases and related phrases. . Thereby, the cost required for translation and the time required for searching can be reduced.

  The search condition is not limited to keyword search. For example, an identification number is assigned to a document, and a search based on the identification number is included. The publication number search when the document is a patent publication corresponds to a specific example. The document search system may be a system having a client and a server connected to each other through a network such as a LAN (Local Area Network) or the Internet, or may be an integrated computer. Further, the first language document storage unit for storing the database may be connected to the document search system through a network, or may be a storage medium such as a hard disk incorporated in a computer that implements the document search system. good. In the latter case, the first country language document storage unit and the related phrase storage unit may occupy different storage areas of a single storage medium. In any case, it is sufficient that the first language document storage unit is used by being connected to the document search system of the present invention, and does not need to constitute a part of the document search system. .

  In the present invention, “documents” stored as a database, “phrases” stored, and the like mean data indicating them. In order to avoid complicated description, the description of “data” is omitted as appropriate within a range that does not cause misunderstanding based on the common general technical knowledge in this field.

  According to a second aspect of the present invention, there is provided the document search system according to the first aspect, wherein the display means is a related phrase related to the search reference phrase in the vicinity of the search reference phrase in the search document. Is displayed.

  According to this configuration, the related words / phrases related to the search reference word / phrase are displayed in the vicinity of the search reference word / phrase in the search document, so that the user can find out what meaning of the search reference word / phrase is used in the sentence. It can be recognized, and it can be narrowed down whether it is a desired document with reference to a search reference phrase in the sentence.

  According to a third aspect of the present invention, there is provided the document search system according to the first aspect, wherein the display means includes a search reference phrase and a related phrase related to the search reference phrase outside the search document. Is displayed.

  According to this configuration, since the search reference word and the related word related to the search reference word are displayed outside the search document, the user can determine at a glance what kind of search reference word is used. It is possible to narrow down whether or not the document is a desired document with reference to the search reference phrase displayed outside the column.

  According to a fourth aspect of the present invention, there is provided the document search system according to the first aspect, wherein the display means is a related phrase related to the search reference phrase in the vicinity of the search reference phrase in the search document. The search reference phrase extracted by the search reference extraction means in a first display format for displaying the search reference phrase and a second display format for displaying the search reference phrase and the related phrase related to the search reference phrase outside the search document It is possible to display a related phrase related to the search reference phrase in the vicinity of. In addition, the document search system further includes a display format selection unit that selects a display format by the display unit, and the display unit selects the first format according to the display format selected by the display format selection unit. At least one of a display format and the second display format is displayed.

  According to this configuration, the user can select the display format by the display means by the display selection means, and in accordance with the selection, the related phrase related to the search reference phrase in the vicinity of the search reference phrase in the search document. At least one of a first display format for displaying and a second display format for displaying a search reference phrase and a related phrase related to the search reference phrase outside the search document. For this reason, if you want to narrow down whether or not a document is a desired document with reference to what meaning the search reference phrase is used in the sentence, what kind of search reference phrase is used. It is possible to narrow down documents according to each user's needs when it is desired to narrow down whether the document is a desired document.

  According to a fifth aspect of the present invention, there is provided the document search system according to any one of the first to fourth aspects, wherein the display means displays related terms in a typeface different from the document typeface of the search document. It is characterized by doing.

  According to this configuration, since the related word / phrase is displayed in a typeface different from the document typeface of the search document, the related word / phrase is highlighted and the user can refer to the related word / phrase as a reference for the desired document. It becomes easier to narrow down. Here, “typeface” refers to fonts such as Mincho and Gothic, as well as font color, whether italic, whether to write in parentheses, character thickness, character size, presence of underline Etc.

  According to a sixth aspect of the present invention, there is provided the document search system according to any one of the first to fifth aspects, wherein the related phrase storage unit includes a search reference phrase input by the input unit. A set with the related phrase is classified into a plurality of sections and stored. The document search system further includes storage category designation means for designating a category to which a search reference phrase to be stored by the related phrase storage means and the related phrase belongs. The related phrase storage means associates the search reference phrase input by the input means and the related phrase with each other and classifies them into the categories designated by the storage category designation means. The document search system further includes extraction category designation means for designating a category to which the search reference phrase to be extracted from the search document belongs by the search reference phrase extraction means. The search reference phrase extraction unit extracts, from the search document, a search reference phrase stored in the related phrase storage unit that belongs to the category designated by the extraction category designation unit.

  According to this configuration, the user can specify the category to which the search reference phrase to be stored in the related phrase storage unit and the related phrase belong by the storage category specifying unit. When the category is specified, the search reference phrase and the related phrase input by the input unit are associated with each other, classified into the category specified by the storage category specifying unit, and stored in the related term storage unit. The Therefore, for example, when a document is a technical document such as a patent publication, the user can classify important search reference words and related words for each development project into different categories and store them in the related word storage unit. it can.

  The user can designate a category by the extraction category designation means when searching for a document. Of the search reference phrases stored in the related phrase storage means, those belonging to the category specified by the extraction category specifying means are extracted from the search document corresponding to the search condition by the search reference phrase extraction means. Therefore, when performing a search, the user designates a category corresponding to his / her development project, for example, and after viewing the related words displayed by the display means and the corresponding search reference words, the search document is displayed. It is possible to easily determine whether the document is desired by the user.

  According to a seventh aspect of the present invention, there is provided the document retrieval system according to the sixth aspect, wherein the plurality of categories are retrieved by the retrieval reference word / phrase extracting means regardless of designation by the extraction category designation means. It contains a common category that is the target of reference word extraction. The search reference phrase extraction unit extracts, from the search document, a search reference phrase stored in the related phrase storage unit that belongs to the selection category designated by the extraction category designation unit, and Regardless of the designation by the extraction category designation means, those belonging to the common category are also extracted from the search document.

  According to this configuration, a plurality of categories include a common category, and even if the user designates any category using the extraction category designation means, not only the designated category but also the search reference terms belonging to the common category Extracted by search reference phrase extraction means. Therefore, for example, the user can categorize and store search reference phrases that are assumed to be important in each project and their related phrases in a common category so that the search reference phrases can be duplicated between different projects. Can be saved.

  According to an eighth aspect of the present invention, there is provided the document search system according to any one of the first to seventh aspects, wherein the input means includes the search reference phrase in the first country language and the search reference. In addition to the related phrase in the second country language of the phrase, the related phrase in the third country language of the search reference phrase is input in association with it. Moreover, the related phrase storage means stores the search reference phrase input by the input means, the related phrase in the second country language, and the related phrase in the third country language in association with each other.

  According to this configuration, the user associates the search reference phrase in the first country language with the related phrase in the second country language of the search reference phrase and the related phrase in the third country language of the search reference phrase by the input means. Can be entered. When these phrases are input, they are associated with each other and stored in the related phrase storage means. As a result, the user can more easily narrow down whether or not the document is a desired document with reference to the language of another language.

  According to a ninth aspect of the present invention, there is provided the document search system according to the eighth aspect, further comprising language specifying means for specifying the language of the related phrase to be displayed by the display means. . In addition, the display means displays, in the vicinity of the search reference word / phrase extracted by the search reference word / phrase extraction means, a related word / phrase related to the search reference word / phrase in the language specified by the language specification means. .

  According to this configuration, the user can designate the language of the related phrase to be displayed by the display unit using the language designation unit. Then, in the vicinity of the search reference phrase extracted by the search reference phrase extraction means, the related phrase related to the search reference phrase in the language specified by the language specification means is displayed by the display means. That is, the user visually recognizes a related phrase displayed in one or both of the second country language and the third country language and a corresponding search reference phrase, so that the search document is a document desired by the user. It can be easily determined whether or not.

  According to a tenth aspect of the present invention, there is provided the document search system according to any one of the first to seventh aspects, wherein the input means includes the search reference phrase in the first country language and the search reference. The phrase is input in association with a plurality of related phrases in the second country language. In addition, the related phrase storage means stores the search reference phrase input by the input means and a plurality of related phrases in the second country language in association with each other.

  According to this configuration, the user can input a plurality of related phrases with respect to one search reference phrase using the input unit. When these phrases are input, they are associated with each other and stored in the related phrase storage means. This makes it easier for the user to narrow down whether the document is a desired document with reference to other related terms.

  According to an eleventh aspect of the present invention, there is provided the document search system according to the tenth aspect, wherein the display means includes a plurality of related words inputted in association with a search reference word by the input means. Display word phrase designating means for designating what should be displayed is further provided. In addition, the display means displays, in the vicinity of the search reference phrase extracted by the search reference phrase extraction means, a plurality of related phrases related to the search reference phrase that are specified by the display phrase specification means. Is.

  According to this structure, the user can designate what should be displayed by a display means among several related words phrases by a display word phrase designation means. Then, in the vicinity of the search reference phrase extracted by the search reference phrase extraction unit, the display unit displays the one specified by the display phrase specification unit among the plurality of related terms related to the search reference phrase. That is, the user can easily determine whether or not the search document is a document desired by the user by visually observing one or both of the related phrases and the corresponding search reference phrase. it can.

  According to a twelfth aspect of the present invention, there is provided the document search system according to any one of the eighth to eleventh aspects, wherein the input means should further display the stored contents of the related phrase storage means. An instruction is input. When the instruction to display the stored contents of the related phrase storage unit is input by the input unit, the display unit connects the search reference phrase stored in the related phrase storage unit and the related phrase to each other. A list is displayed in association with each other.

  According to this configuration, the user can input an instruction to display the storage contents of the related phrase storage unit using the input unit. When the instruction is input, the search reference phrase stored in the related phrase storage unit and the related phrase are associated with each other and displayed as a list by the display unit. That is, the user can browse the contents stored in the related word / phrase storage means in a list display according to his / her own instruction. Accordingly, the user can more easily narrow down whether or not the document is a desired document with reference to the contents input by the user and stored in the related phrase storage unit. In this configuration, when the storage content of the related phrase storage unit includes a related phrase in a plurality of languages for the same search reference phrase, or a plurality of related phrases in the same language for the same search reference phrase In some cases, it is particularly useful when some of the related terms are displayed on the display means.

  According to a thirteenth aspect of the present invention, there is provided the document search system according to any one of the first to twelfth aspects, wherein the keyword input means selects a keyword in a second country language for keyword search. It is input as a search condition. The document search system further includes a keyword-related phrase extraction unit and a keyword search unit. The keyword-related phrase extracting unit extracts a search reference phrase in a first country language related to the keyword input by the keyword input unit by referring to the storage content of the related phrase storage unit. The keyword search means searches the database including the search reference phrase extracted by the keyword related phrase extraction means as the search document from the database.

  According to this configuration, the user can input a keyword for keyword search in the second country language. When the keyword is input by the keyword input means, the search reference phrase in the first country language related to the keyword is extracted by the keyword related phrase extraction means by referring to the stored contents of the related phrase storage means. Then, the document including the extracted search-related phrase is searched from the database by the keyword search means. Therefore, the user can search for a keyword stored in the database by inputting the keyword in the second country language. That is, the stored contents stored in advance in the related phrase storage means for determining whether or not the searched search document is a document desired by the user can be used for keyword search.

  According to a fourteenth aspect of the present invention, there is provided the document search system according to any one of the first to thirteenth aspects, wherein each of the plurality of documents stored in the database is a patent publication. Is.

  According to this configuration, since each of the plurality of documents stored in the database to be searched by the document search system is a patent gazette, the user influences the infringement or patentability of the new technology he / she aims for. Even when the prior art is disclosed in, for example, a first country language in which the person is not familiar, the document can be narrowed down. In the present invention, a patent gazette has significance as a technical document disclosing the invention or device, such as a patent application publication gazette, a patent application publication gazette, a patent publication gazette, a summary publication gazette (digest), and a utility model publication gazette. This means the contents of publications in domestic and foreign gazettes issued by patent-related authorities that have been digitized.

  According to a fifteenth aspect of the present invention, a search document corresponding to a search condition is searched from a database in which a plurality of documents described in a first country language are stored in a first country language document storage unit. A document search program that causes a computer to function as receiving means, related phrase storage means, search reference phrase extraction means, image data generation means, and image data output means. The receiving means receives the search reference phrase in the first country language and the related phrase in the second country language of the search reference phrase that are input in association with each other. The related phrase storage means stores the search reference phrase and the related phrase input by the receiving means in association with each other. The search reference phrase extraction unit extracts a search reference phrase stored in the related phrase storage unit from the search document. Image data generating means displays image data related to the search reference phrase in the vicinity of the search reference phrase extracted by the search reference phrase extraction means by referring to the stored contents of the related phrase storage means Is generated. The image data output means outputs the image data generated by the image data generation means.

  The computer into which the document search program with this configuration is read functions as a document search server that searches for a document in response to a request from a client terminal, for example. To use the document search server, the user connects a client terminal to the document search server through a network. The user selects a phrase in the first country language that is likely to be included in the document to be searched as a search reference phrase, and inputs the search reference phrase and the related phrase in the second country language in association with each other by the client terminal. To do. The search reference phrase and the related phrase input by the client terminal are associated with each other and received by the receiving unit. The received search reference phrase and related phrase are associated with each other and stored in the related phrase storage means. The user inputs search conditions to the client terminal when searching for a document using the document search system. The input search condition is received by the document search server, and the document search system searches the database for a search document corresponding to the input search condition. The search reference phrase stored in the related phrase storage unit is extracted from the searched search document by the search reference phrase extraction unit. By referring to the stored contents of the related phrase storage means, image data for displaying the related phrases related to the search reference phrase in the vicinity of the search reference phrases extracted by the search reference phrase extraction means is displayed by the image data generation means. Generated. The generated image data is output by the image data output means and received by the client terminal. The received image data is displayed by the client terminal.

  Therefore, for the same reason as described for the document search system, the document search program according to this configuration is a desired document for a document searched from a database in which documents described in a language that the user is not familiar with is stored. It is possible to easily determine whether or not it depends on translation. This also makes it possible to narrow down documents to be translated in order to make a more precise determination.

  Note that the computer into which the document search program according to this configuration is read is not only a document search server used by connecting a client terminal through a network, but also a single device having both the function of the document search server and the function of the client terminal. Can also be realized.

  According to a sixteenth aspect of the present invention, there is provided a computer-readable recording medium on which the document search program according to the fifteenth aspect is recorded.

  The recording medium having this configuration is read into a computer, thereby realizing a document search server and the like, similar to the document search program of the present invention. Therefore, for the same reason as described for the document search system, is the recording medium with this configuration a desired document for a document searched from a database in which documents described in a language that the user is not familiar with is stored? It is possible to easily determine whether or not it depends on translation. This also makes it possible to narrow down documents to be translated in order to make a more precise determination.

  As described above, according to the document search system, the document search program, and the recording medium according to the present invention, whether a document searched from a database in which documents described in a language that the user is not familiar with is stored is a desired document. It is possible to easily determine whether or not to rely on translation, and thus it is possible to narrow down in advance the documents to be translated for performing more precise determination.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a hardware configuration of a document search system according to an embodiment of the present invention. The document search system 300 includes a user terminal 10, a patent information providing server 20, and a LAN 18. The patent information providing server 20 and a plurality of user terminals 10 which are usually plural are connected to each other through the LAN 18. The patent information providing server 20 is a server that provides a patent gazette search service in response to a request from each user terminal 10. The searched patent publication is displayed on the display device 11 of the user terminal 10. Thereby, the user of the user terminal 10 can browse the acquired patent gazette.

FIG. 2 is a block diagram showing a hardware configuration of the patent information providing server 20. The patent information providing server 20 is configured as a computer, and includes a server main body 21, an input device 22, a display device 23, and a hard disk device (HDD) 24. The server body 21 includes a CPU (Central Processing Unit) 25, a ROM (Read
It has only memory (RAM) 26, random access memory (RAM) 27, interface (I / F) 28, and reading device 29.

The CPU 25 executes programs stored in the ROM 26 and the RAM 27. The ROM 26 includes, for example, a BIOS (Basic that performs OS (Operating System) startup and hardware settings immediately after the startup of the patent information providing server 20.
Input Output System) is stored. In the RAM 27, an OS (Operating System), applications, and the like stored in the hard disk device 24 are expanded as necessary, and are executed by the CPU 25. The RAM 27 is also used as a work memory that temporarily stores data generated when the CPU 25 executes processing.

The interface 28 is an IDE (Integrated Device).
An electronics (not shown) controller, a LAN controller, a legacy input / output controller, and the like are provided, and an external device such as the input device 22 is connected to the CPU 25 through these circuits. The CPU 25, ROM 26, RAM 27, and interface 28 are connected to each other through a bus line 31.

  The input device 22 includes a keyboard and a mouse, for example, and is a device for an operator to input data by manual operation. The display device 23 is an LCD (Liquid Crystal Display) device, for example, and is a device that displays an image signal as a visible image. The hard disk device 24 stores an OS, applications, etc., and also stores a patent information database. The reading device 29 is a device that reads recorded contents from a recording medium 30 such as a CD-ROM in which programs and data are recorded. The LAN 18 is connected to the bus line 31 through a LAN controller included in the interface 28.

  Since the hardware configuration of the user terminal 10 is the same as that in FIG. 2, the detailed description thereof is omitted. The input device 22 of the user terminal 10 corresponds to a specific example of the input unit and the keyword input unit of the present invention, and the display device 11 corresponds to a specific example of the display unit of the present invention.

  FIG. 3 is an explanatory diagram schematically showing an example of the software configuration of the user terminal 10 and the patent information providing server 20. The configuration of FIG. 3 is merely an example, and the present invention can be implemented by various software configurations other than the configuration of FIG.

In the configuration example of FIG. 3, the user terminal 10 is equipped with an OS 41 and a browser 42 that operates on the OS 41 so that the patent information providing server 20 can be used. The other patent information providing server 20 includes an OS 51, WEB (web) server software 52, an application 53, an API (Application Program Interface) 54, a DBMS (DataBase
A management system (database management system) 56 and a patent information database 57 are mounted.

The OS 41 is a control program that performs application execution management, peripheral device control, and the like in the user terminal 10. The browser 42 sends HTML (Hyper Text) to a URL (Uniform Resource Locator) specified by the user of the user terminal 10.
Request a file described in Markup Language (XML) or XML (extensible Markup Language), etc., decode the language described in the received HTML file, etc., display the image as described, or paste it into the HTML file, etc. It is an application that executes small applications such as scripts and applets.

  The OS 51 is a control program for the patent information providing server 20 having a function as a web server, and a network OS is used. The WEB server software 52 is software for realizing a WEB server function.

  The application 53 is an application that implements processing unique to the patent information providing server 20 in response to a request from the browser 42. The application 53 includes an interface program such as CGI (Common Gateway Interface) or server side script, for example.

  The patent information database 57 stores Chinese patent gazettes in Chinese and is stored in the hard disk device 24 (FIG. 2). The DBMS 56 is software that operates the patent information database 57 in accordance with instructions sent from the application 53 through the API 54. The API 54 is a program that operates the DBMS 56 in accordance with instructions from the application 53.

  The patent information providing server 20 has both a function as a web server and a function as a database server. On the other hand, the patent information providing server 20 can be realized by dividing the web server 40 and the database server 50 into separate servers and being connected to each other via the LAN 18 or the Internet. In this case, it is possible to use a database server 50 that will be installed in the future by the Chinese Patent Office. The patent information providing server 20 according to the present embodiment is configured as an integral unit as shown in FIG.

  The application 53 corresponds to an embodiment of the document search program of the present invention. The application 53 can be supplied through a recording medium 30 (FIG. 2) such as a CD-ROM, or can be supplied through a transmission medium such as the LAN 18 or the Internet. The recording medium 30 on which the application 53 is recorded corresponds to an embodiment of the recording medium on which the document search program of the present invention is recorded. In addition to the application 53, other programs such as the OS 51 can be supplied to the patent information providing server 20 through the same route.

  The program recorded on the recording medium 30 or the like is read into the information providing server 20 through the reading device 29 and stored in the hard disk device 24. A program supplied through a transmission medium such as the LAN 18 is received through the interface 28 and stored in the hard disk device 24. The transmission medium is not limited to a wired transmission medium, and may be a wireless transmission medium. The transmission medium includes not only the communication line but also a relay device that relays the communication line, such as a router.

  FIG. 4 is a block diagram showing the configuration of the patent information providing server 20 based on functions. The components 61 to 72 and 81 to 84 of the patent information providing server 20 depicted in the block diagram cooperate with the hardware resources of the patent information providing server 20 when the application 53 is read into the patent information providing server 20. This corresponds to the unique function of the patent information providing server 20 realized by this. The contents of the patent information database 57 are read into the patent information providing server 20 separately. However, the contents of the application 53 and the patent information database 57 may be supplied by the same recording medium 30 (FIG. 2). The components 61 to 72 and 81 to 84 unique to the patent information providing server 20 are realized by the application 53 using functions of general-purpose programs such as the OS 51, the WEB server software 52, the API 54, and the DBMS 56. .

  As shown in FIG. 4, the patent information providing server 20 includes a receiving unit 61, a document search execution unit 62, a related phrase registration unit 63, a dictionary title registration unit 64, a search reference phrase extraction unit 65, an image data generation unit 67, an image A data output unit 68, an authentication unit 69, a related phrase storage unit 70, a screen setting content storage unit 71, a search result storage unit 72, and a patent information database 57 are provided. The document search execution unit 62 includes a keyword search unit 81 and a keyword-related phrase extraction unit 82. Further, the search reference phrase extraction unit 65 includes a specified dictionary search reference phrase extraction unit 83, a common dictionary search reference phrase extraction unit 84, and a related phrase acquisition unit 66. Similarly to the patent information database 57, the related phrase storage unit 70, the screen setting content storage unit 71, and the search result storage unit 72 are provided in different storage areas of the HDD 24, for example.

  The function of each component of the patent information providing server 20 will be described at the same time in the description of the operation performed with reference to FIGS.

  The function of the patent information providing server will be described below with reference to FIGS. 5 and 6 with reference to FIGS. In addition, about description of drawing of FIGS. 7-18, it shall carry out each time in description of FIG. 5 and FIG.

  5 and 6 are sequence diagrams showing a procedure for a user to search for Chinese patent publications stored in the patent information database 57 using the patent information providing server 20 through the user terminal 10. To use the patent information providing server 20, the user starts up the user terminal 10, then starts up the browser 42, and inputs the URL of the patent information providing server 20 (S1). Alternatively, when the user clicks the URL of the linked patent information providing server 20 with a mouse or the like, the user terminal 10 automatically starts up the browser 42 (S1). Thereby, the access to the patent information providing server 20 is performed from the user terminal 10 (S3). That is, the user terminal 10 requests an HTML file from the patent information providing server 20. When receiving the request, the receiving unit 61 causes the image data generating unit 67 to generate an HTML file for displaying a login screen in response to the request. The image data output unit 68 transmits the generated HTML file to the browser 42 (S5). When the browser 42 receives the HTML file, the browser 42 displays a login screen on the display device 11 by decoding the HTML file.

  FIG. 7 is a screen diagram showing a login screen displayed on the display device 11. In the login screen, an ID input field 111 for inputting an ID (identification code) given in advance to the user of the patent information providing server 20 and a password registered by the user in the patent information providing server 20 are input. A password input field 112 for this purpose is displayed in the form of a text box as a GUI (Graphical User Interface) component. The login screen further displays a send button 110 for sending the entered ID and password (PW) to the patent information providing server 20.

  After the user inputs a predetermined code in the ID input field 111 and the password input field 112, when the transmission button 110 is pressed, that is, clicked with a mouse or the like, the browser 42 transmits the input content to the patent information providing server 20. (S9). A program such as a script or an applet is pasted on the HTML file that provides the login screen. More specifically, the program operates on the browser 42 to transmit the content input by the user to the patent information providing server 20.

  When the reception unit 61 receives the transmitted ID and password, the authentication unit 69 performs authentication by comparing with the ID and password registered in advance in the hard disk device 24 or the like (S11). If the authentication is successful, the authentication unit 69 causes the image data generation unit 67 to generate an HTML file for displaying the menu screen. The image data output unit 68 transmits the generated HTML file to the browser 42 (S13). When the browser 42 receives the HTML file, the browser 42 displays the menu screen on the display device 11 by decoding the HTML file.

  FIG. 8 is a screen diagram showing a menu screen displayed on the display device 11. On the menu screen, a button for selecting a type of main function to be performed by the patent information providing server 20, that is, a so-called main menu is displayed. In the example of FIG. 8, a related phrase registration button 113 for selecting registration of a related phrase, a screen setting button 114 for selecting setting of a screen, and a patent publication selection button 115 for selecting search for a patent publication are provided. It is displayed. “Exclusive” is a word in Chinese corresponding to “patent”.

  Registration of related phrases means that when displaying a searched patent gazette, a search reference phrase that is an important word contained in the patent gazette and a related phrase that is a related phrase in Japanese are simultaneously displayed. This is a function for a user to register a search reference phrase and its related phrase in advance. The setting of the screen is a function for setting a format for displaying the searched patent gazette, the search reference phrase, or the related phrase. The patent gazette search is a function for searching for a target patent gazette from the patent information database 57 based on a search condition input by the user and displaying the searched patent gazette.

  When the user clicks one of the buttons, the browser 42 transmits selection data indicating that the corresponding processing content has been selected to the patent information providing server 20. More specifically, when a program such as a script or an applet pasted on an HTML file providing a menu screen operates on the browser 42, selection data corresponding to the clicked button is sent to the patent information providing server. 20 is transmitted. The selection data is, for example, data for starting a specific program such as CGI or ASP prepared in the application 53 according to the selection content.

  As illustrated in FIG. 5, it is assumed that the user clicks the related phrase registration button 113 (S15). Then, the browser 42 transmits selection data corresponding to registration of the related phrase to the patent information providing server 20 (S17). When receiving the selection data, the receiving unit 61 causes the image data generating unit 67 to generate an HTML file for displaying a related phrase registration screen. As will be described later with reference to FIG. 9, the registered search reference phrase and the related phrase related thereto are displayed on the related phrase registration screen. For this reason, the image data generation unit 67 reads the search reference phrase and the related phrase related thereto stored in the related phrase storage unit 70, and generates a related phrase registration screen. The image data output unit 68 transmits the generated HTML file to the browser 42 (S19). When the browser 42 receives the HTML file, the browser 42 decodes the HTML file and displays a related word / phrase registration screen on the display device 11.

  FIG. 9 is a screen diagram illustrating a related word / phrase registration screen displayed on the display device 11. The related word registration screen is a screen for the user to register the search reference word and the related word in association with each other. The Chinese word input field 141 for inputting the search reference word in Chinese and the translated word in Japanese. Japanese translation word input field 142 for inputting one of certain related phrases, synonym input fields 143 and 144 for inputting a synonym in Japanese, that is, another related phrase, and search reference An English translation word input field 145 for inputting an English translation of the phrase, that is, a related phrase in English, is displayed in the form of a text box.

  The user selects, as a search reference phrase, a phrase that is highly likely to be included in a patent publication that seems to be important in determining the patentability or infringement of the technology that the user intends. Among a plurality of related phrases in Japanese, a related phrase registered by being entered in the Japanese translation word input field 142 is displayed at the same time as the patent publication obtained by the search, and other related phrases in Japanese are Do not show. A related phrase displayed at the same time as a patent publication obtained by a search is referred to as a main related phrase, and a related phrase that is not displayed is referred to as a sub related phrase. Therefore, inputting the related phrase in the Japanese translation word input field 142 by the user is equivalent to designating that the related phrase is the main related phrase at the same time. Similarly, when the user inputs a related phrase in the synonym input fields 143 and 144, it is equivalent to simultaneously designating that the related phrase is a sub-related phrase.

  The related word / phrase registration screen further displays dictionary designation buttons 121 to 124 for designating any of a plurality of dictionaries and an apply button 120 for confirming the input dictionary title. The patent information providing server 20 makes it possible to divide and register related terms into a plurality of categories. In this embodiment, each of these divisions is referred to as a “dictionary”. The dictionary designation buttons 121 to 124 are buttons for designating the common dictionary and the dictionaries A to C, respectively. As will be described later, when the searched patent gazette is displayed, the user can select a dictionary to which the related words / phrases to be displayed simultaneously with the patent gazette belong to the dictionaries A to C. Regardless of the dictionary A to C selected as the dictionary to which the related terms to be displayed at the same time as the searched patent gazette belong, the related terms registered in the common dictionary are displayed at the same time as the searched patent gazette. Is done. The common dictionary corresponds to an embodiment of the common category of the present invention. In the present embodiment, there are three dictionaries A to C as dictionaries other than the common dictionary, but in general, there may be two dictionaries or four or more dictionaries.

  In the related word / phrase registration screen, a dictionary title input field 126 for inputting the title of the currently selected dictionary is displayed in the form of a text box. When the user selects one of the dictionaries A to C by clicking on one of the dictionary designation buttons 122 to 124, the browser 42 may display the title of the selected dictionary already registered. The title is displayed in the dictionary title input field 126. If it is not registered, a blank is displayed. In any case, the user can newly register a dictionary title or update an already registered dictionary registration by inputting the dictionary title in the dictionary title input field 126. The user clicks the apply button 120 after inputting the dictionary title in the dictionary title input field 126. As a result, the browser 42 determines the newly input dictionary title as the title of the selected dictionary and displays it in the dictionary title column displayed in parallel on the left side of the dictionary designation buttons 122 to 124.

  Among the dictionary designation buttons 121 to 124, for example, the dictionary designation button 122 corresponding to the dictionary A is turned on by default. The search reference phrase and its related phrase transmitted to the browser 42 together with the related phrase registration screen in step S19 (FIG. 5) are the search reference phrase and its related phrase registered in the dictionary turned on by default in this way. . When the related phrase registration screen is displayed by the browser 42, the input columns 141 to 145 include a search reference phrase already registered in the dictionary that is turned on by default, for example, the dictionary A and its related phrase. If so, it is displayed.

  When the user clicks any one of the dictionary designation buttons 121 to 124 that is different from the currently turned on (S21), the displayed input fields 141 to 145 are registered in the selected dictionary. This is a field for inputting a power search reference phrase and a related phrase corresponding thereto. At this time, the browser 42 transmits selection data notifying that the user has selected any of the dictionary designation buttons 121 to 124 to the patent information providing server 20. When receiving the selected data, the receiving unit 61 of the patent information providing server 20 activates the image data generating unit 67 and displays an HTML file for displaying the search reference phrase and its related phrase registered in the selected dictionary. Is generated. The image data output unit 68 transmits the generated HTML file to the browser 42. As a result, if there is a search reference phrase and its related phrase already registered in the selected dictionary, the browser 42 displays these search reference phrase and related phrase in the input fields 141 to 145. The user can add a set of the search reference phrase and the related phrase to the selected dictionary by inputting the search reference phrase and the related phrase corresponding thereto in the blank input fields 141 to 145. (S23).

  A delete button 147 and a sort button 140 are further displayed on the related word / phrase registration screen. When the user clicks the delete button 147, the browser 42 deletes the search reference phrase and the related phrase arranged in the corresponding row. When the user clicks the sort button 140, the browser 42 rearranges the lines based on the words displayed in the corresponding input field among the input fields 141 to 145, that is, a combination of the search reference word and its related word. Sort the. The rearrangement is, for example, any of alphabetical order, AIUEO order, JIS character code order, etc. Each time the sort button 140 is clicked, it may be changed in order.

  A registration button 136 is further displayed on the related phrase registration screen. When the user clicks the registration button 136, the browser 42 transmits data including the selected dictionary, the changed dictionary title, and the contents displayed in the input fields 141 to 145 to the patent information providing server 20. (S25 in FIG. 5). The data to be transmitted specifies, for example, a dictionary to be registered in data for starting a program such as a specific CGI or ASP prepared in the application 53 in order to register a set of search reference phrases and related phrases. Data indicating the set of the data to be used, the changed dictionary title, and the changed search reference phrase and related phrase.

  In addition, a data acquisition button 131, a data output button 132, a list display button 133, a word search button 134, and a word input field 135 are displayed on the related phrase registration screen. The data fetch button 131 is a button for fetching related words / phrases from the tabular data into the selected dictionary. This function will be described later with reference to FIG. The list display button 133 is a button for displaying a list of combinations of search reference words and related words registered in the selected dictionary. This function will be described later with reference to FIG.

  When the user clicks on the data output button 132, the browser 42 prints out a set of search reference words and related words registered in the selected dictionary. When the user inputs a word / phrase into the word input field 135 and clicks the word search button 134, the browser 42 selects a set of a search reference word / phrase including the input word / phrase and a related word / phrase from the selected dictionary. A search is performed, and a set of search reference phrases and related phrases found by the search is displayed.

  A menu return button 148 is further displayed on the related word / phrase registration screen. When the user clicks the menu return button 148, the browser 42 deletes the related word / phrase registration screen from the display device 11 and displays the menu screen (FIG. 8) temporarily stored in the user terminal 10.

  As described above, the browser 42 accepts various input operations by the user on the related phrase registration screen and performs various processes accordingly. These operations are performed on, for example, an HTML file that provides the related phrase registration screen. The program such as the pasted script or applet is achieved by operating on the browser 42.

  Returning to FIG. 5, the receiving unit 61 of the patent information providing server 20 transmits the contents transmitted by the browser 42 in step S25, that is, the selected dictionary, the changed dictionary title, and the contents of the input fields 141 to 145. Receive. Upon receiving these contents, the receiving unit 61 activates the related phrase registration unit 63 to execute registration of a set of search reference phrases and related phrases according to the received contents (S27).

  The related phrase registration unit 63 registers the contents of the input fields 141 to 145 received by the receiving unit 61 in the related phrase storage unit 70. In particular, the related word / phrase registration unit 63 associates the search reference word / phrase with the related word / phrase and registers them in the related word / phrase storage unit 70 as a set of the search reference word / phrase belonging to the dictionary received by the receiving unit 61 and the related word / phrase.

  FIG. 10 is a data structure diagram showing the structure of data registered in the related phrase storage unit 70. Among these, FIG. 10A shows a data structure of a set of registered search reference phrases and related phrases. In the example of FIG. 10A, the data structure is in the form of the table 160 or a form that can be reproduced as the table 160. The items include a dictionary 150, a Chinese word 151, a Japanese translation word 152, and a synonym 153. , 154 and English translation word 155. Items 151 to 155 record the contents input in the input fields 141 to 145 in FIG. In the dictionary 150, the identification code of the dictionary received by the receiving unit 61 is recorded.

  When the user inputs a dictionary title in the dictionary title input field 126 and clicks the registration button 136 after clicking the apply button 120 on the related phrase registration screen of FIG. 9, the browser 42 changes the dictionary title. Data indicating the dictionary and dictionary title to be transmitted is transmitted to the patent information providing server 20. The receiving unit 61 receives these data, and the dictionary title registration unit 64 registers the dictionary title in the related word / phrase storage unit 70. The dictionary title registration unit 64 associates the dictionary title received by the reception unit 61 with the dictionary to which the received dictionary title should be attached and registers it in the related phrase storage unit 70.

  FIG. 10B of FIG. 10 shows a data structure of a registered dictionary title. In the example of FIG. 10B, the data structure of the dictionary title has a format of Table 161 or a format that can be reproduced as Table 161, and has a dictionary 162 and a title 163 as items. Similar to the dictionary 150, a dictionary identification code is recorded in the dictionary 162. In the title 163, a dictionary title is recorded. Through the dictionary 150 and the dictionary 162, the two tables of FIG. 10 (a) and FIG. 10 (b) are linked to each other.

  Returning to FIG. 5, when the user clicks the menu return button 148 on the related phrase registration screen (FIG. 9), the browser 42 deletes the related phrase registration screen from the display device 11 and is temporarily stored in the user terminal 10. The menu screen (FIG. 8) is displayed (S29). When the user clicks the screen setting button 114 on the menu screen (S31), the browser 42 transmits selection data corresponding to the screen setting to the patent information providing server 20 (S33). When receiving the selection data, the receiving unit 61 of the patent information providing server 20 causes the image data generating unit 67 to generate an HTML file that displays a screen for screen setting. The image data generation unit 67 generates the HTML file by referring to the stored contents of the related phrase storage unit 70. The image data output unit 68 transmits the generated HTML file to the browser 42 (S35). When the browser 42 receives the HTML file, the browser 42 decodes the HTML file and displays a related word / phrase registration screen on the display device 11.

  FIG. 11 is a screen diagram illustrating a screen setting screen displayed on the display device 11. The screen setting screen is a screen for setting in advance a screen format for displaying the search result. For this purpose, on the screen setting screen, a display range selection button 170 for selecting a portion to be displayed among the searched patent publications, and a display format of related terms to be displayed together with the searched patent publications are selected. Buttons 171 to 174, buttons 175 to 177 for selecting the language of the related phrase, buttons 220 to 223 for selecting the dictionary to which the related phrase belongs, and the Japanese translation of the abstract together with the searched patent publication A button 178 for selecting whether or not to display a sentence is displayed. In the present embodiment, it is assumed that abstracts in Japanese are stored in advance in the patent information database 57 together with patent gazettes in Chinese.

  The display range selection button 170 includes a button for selecting an abstract, a button for selecting a claim range, a button for selecting a full text, a button for selecting other description fields, etc. Contains. Each button is an alternative radio button in the example of FIG. 11, but may be a button that can select a plurality of buttons simultaneously.

  The no-display button 171 is a button for selecting a format that does not display a related word / phrase in the searched patent publication. The in-sentence display button 172 is a button for selecting a format for displaying related terms in the sentence of the searched patent publication. The out-of-line display button 173 is a button for selecting a format for displaying a related word / phrase in the out-of-line of the searched patent publication, that is, a portion outside the area where the content of the patent publication is displayed. The out-of-sentence text display button 174 is a button for selecting a format for displaying a related word / phrase both in and out of the text of the searched patent gazette.

  The Japanese button 175 is a button for selecting Japanese as the language of the related phrase to be displayed. The English button 176 is a button for selecting English as the language of the related phrase to be displayed. The Japanese English button 177 is a button for selecting both Japanese and English as the language of the related phrase to be displayed.

  The dictionary selection buttons 221 to 223 are buttons for selecting the dictionary A, the dictionary B, and the dictionary C, respectively, as the dictionary to which the related phrase to be displayed belongs. Each of the dictionary selection buttons 221 to 223 displays a dictionary title stored in the related phrase storage unit 70. That is, the dictionary already registered by inputting the dictionary title in the dictionary title input field 126, that is, the dictionary title registered by clicking the apply button 120 after inputting the dictionary title in the dictionary title input field 126 is displayed. Is displayed. Then, the user can select the dictionary in which the title is displayed using the dictionary selection buttons 221 to 223. It should be noted that dictionaries that are not yet registered, that is, dictionaries that are not registered by inputting in the dictionary title input field 126 and clicking the apply button 120 may not be displayed as the dictionary selection buttons 221 to 223. Then, when the user selects one of the dictionaries A to C, the association is made with the searched patent gazette and the search reference words (words in the patent gazette) registered in the selected dictionary. A related phrase that is paired with a phrase and a search reference phrase (a phrase in the patent publication) registered in the common dictionary is displayed.

  By clicking the “translated text” button in the translated text display selection button 178, the Japanese translation of the abstract is displayed together with the searched patent gazette. On the other hand, by clicking the “no translation” button in the translation display selection button 178, only the searched patent publication is displayed, and the Japanese translation of the summary is not displayed.

  After the user selects a desired display format by a button operation (S37), when the transmission button 179 is clicked, the browser 42 transmits data indicating the selected display format to the patent information providing server 20 (S39). The data to be transmitted includes, for example, data indicating the selected display format to data for starting a program such as a specific CGI or ASP prepared in the application 53 in order to store the selected display format. It is a thing.

  The receiving unit 61 of the patent information providing server 20 receives data transmitted by the browser 42. When receiving the transmitted data, the receiving unit 61 stores the display format indicated by the data, that is, the setting content of the screen for displaying the search result in the screen setting content storage unit 71 (S41).

  When the user clicks the menu return button 148 on the screen setting screen (FIG. 11), the browser 42 deletes the screen setting screen from the display device 11 and the menu screen (FIG. 11) once saved in the user terminal 10. 8) is displayed (S43). When the user clicks the patent publication search button 115 on the menu screen (S45), the browser 42 transmits selection data corresponding to the publication search to the patent information providing server 20 (S47). When receiving the selection data, the receiving unit 61 of the patent information providing server 20 causes the image data generating unit 67 to generate an HTML file that displays a search condition input screen. The image data output unit 68 transmits the generated HTML file to the browser 42 (S49). When the browser 42 receives the HTML file, the browser 42 decodes the HTML file to display a search condition input screen on the display device 11.

  FIG. 12 is a screen diagram showing a search condition input screen displayed on the display device 11. The search condition input screen is a screen that allows the user to input search conditions. Therefore, the search condition input screen includes a publication selection buttons 181 and 182, an issue date input field 183, a search field selection button 184, a publication number input field 185, a keyword language selection button 186, a keyword input field 187, and an IPC input field 188. Is displayed.

  The publication selection button 181 makes it possible to select the invention, utility model (corresponding to Japanese utility model), and both of them as the scope of patent publications to be searched. The gazette selection button 182 makes it possible to select either or both of a public gazette and a registered gazette as a range of patent gazettes to be searched. The issue date input field 183 allows the issue date of a patent gazette to be entered as a range of patent gazettes to be searched. In the example of FIG. 12, the issue date input field 183 is displayed in the form of a conbox as a GUI component. The search column selection button 184 makes it possible to select a range of a description column of a patent publication such as an abstract, a claim range, and a full text as a search range.

  The publication number input field 185 is a text box for inputting and specifying a publication number as a search target. The keyword language selection button 186 is a radio button for selecting a keyword language. The keyword input field 187 is a text box for inputting a keyword for keyword search. The keyword input field 187 is accompanied by a conbox for designating a logical relationship (OR or AND) between a plurality of text boxes.

  For example, when inputting a keyword in the keyword input field 187 in Chinese, the user selects Chinese by the keyword language selection button 186, and when inputting a keyword in Japanese, the user selects Japanese. As will be described later, when a keyword is input in a language other than Chinese, the keyword is translated into a Chinese keyword using a dictionary selected through the screen setting screen of FIG. Therefore, when inputting a keyword in a language other than Chinese, it is necessary to select the keyword from the related phrases registered in the selected dictionary. When a related phrase that has not been registered is used as a keyword, the search is not executed.

  The IPC input field 188 is a text box for designating IPC (International Patent Classification) as a search range. Any of the IPCs input in the plurality of text boxes becomes the search range.

  After the user inputs the search condition on the search condition screen (S51), when the transmission button 189 is clicked, the browser 42 transmits data including the input search condition to the patent information providing server 20 (S53). The data to be transmitted is, for example, data for starting a program such as a specific CGI or ASP prepared in the application 53 for executing the search, with data indicating the input search condition attached. .

  The receiving unit 61 of the patent information providing server 20 receives data transmitted by the browser 42. When receiving the transmitted data, the receiving unit 61 activates the document search execution unit 62 and delivers the received search condition to the document search execution unit 62. Thereby, the document search execution unit 62 searches the patent information database 57 for a patent publication corresponding to the search condition (S55). When a keyword search is included in the search conditions, the keyword search unit 81 performs a keyword search.

  For example, in the search condition input screen (FIG. 12), when “invention”, “publication publication”, “summary”, “Chinese” is selected and a keyword is input in Chinese, the keyword search unit 81 A patent application publication that includes a word that matches the keyword is searched in the range of the abstract. When “invention”, “publication gazette”, “abstract”, “Japanese” is selected and a keyword is input in Japanese, the keyword-related phrase extraction unit 82 first stores the screen setting content storage unit 71. By referencing, it is determined which dictionary is selected. Next, the keyword-related phrase extraction unit 82 searches the related phrase storage unit 70 to search the selected dictionary (any of the dictionary A221 to the dictionary C223 in FIG. 11) and the Japanese registered in the common dictionary. Are searched for those that match the keyword, and search reference phrases in Chinese corresponding to the searched related phrases are extracted. The keyword search unit 81 performs a search of the patent information database 57 using the search reference phrase in Chinese acquired by the keyword-related phrase extraction unit 82 as a keyword. Thus, the set of the search reference phrase and the related phrase registered in the related phrase storage unit 70 is also used for keyword translation.

  When the document search execution unit 62 acquires a patent gazette by the search, the search result storage unit displays information for displaying a list of searched patent gazettes on a search result list screen described later, such as the gazette number and the name of the invention. 72 is stored. The document search execution unit 62 also stores the search condition received from the reception unit 61 in the search result storage unit 72. The document search execution unit 62 further causes the image data generation unit 67 to generate an HTML file for displaying the search result list screen. The image data generation unit 67 creates an HTML file for displaying the search result list screen by referring to the stored contents of the search result storage unit 72, for example, the gazette number of the searched patent publication and the name of the invention. The image data output unit 68 transmits the generated HTML file to the browser 42 (S61). When the browser 42 receives the HTML file, the browser 42 displays the search result list screen on the display device 11 by decoding the HTML file. There may be a plurality of patent publications obtained by searching.

  FIG. 13 is a screen diagram showing a search result list screen displayed on the display device 11. In this example, the search result list screen displays the gazette number of the searched patent publication and the name of the invention. When the user selects a patent publication desired to be browsed by, for example, placing the cursor on the publication number and clicking (S63), the browser 42 transmits data including selection data indicating the selected patent publication to the patent information providing server. 20 (S65). The data to be transmitted is, for example, selected data attached to data for starting a program such as a specific CGI or ASP prepared in the application 53.

  When receiving the selection data transmitted by the browser 42, the reception unit 61 activates the document search execution unit 62 again and transfers the received selection data to the document search execution unit 62. Then, the document search execution unit 62 searches the patent information database 57 for the selected patent publication and stores the contents of the searched patent publication in the search result storage unit 72. At the same time, the document search execution unit 62 refers to the stored content of the screen setting content storage unit 71 to determine whether or not the no-display button 171 is selected on the screen setting screen (FIG. 11). Then, the document search execution unit 62 activates the search reference phrase extraction unit 65 and transfers the selected data to the search reference phrase extraction unit 65 except when the no display button 171 is selected.

  As a result, the search reference word / phrase extraction unit 65 is used for screen setting within the range of the patent gazette stored in the search result storage unit 72 and corresponding to the selection data from the patent gazette selected by the search column selection button 184. A search reference word / phrase registered in the dictionary selected through the screen (FIG. 11) (hereinafter referred to as “designated dictionary”) and the common dictionary is extracted. The specified dictionary search reference word / phrase extraction unit 83 extracts search reference words / phrases registered in the specified dictionary, and the common dictionary search reference / phrase extraction unit 84 extracts search reference words / phrases registered in the common dictionary ( S67). The search reference phrase extraction unit 65 can grasp the range of the patent publication selected by the search column selection button 184 by referring to the search condition stored in the search result storage unit 72, and the screen setting contents By referring to the storage unit 71, it is possible to grasp what the designated dictionary is. The search reference phrase extraction unit 65 can extract the search reference phrases registered in the designated dictionary and the common dictionary from the patent gazette by referring to the stored contents of the related phrase storage unit 70.

  The search reference phrase extraction unit 65 extracts the search reference phrase by referring to the related phrase storage unit 70 and, at the same time, the screen setting content stored in the screen setting content storage unit 71 (Japanese buttons 175 to Japanese in FIG. By referring to the English button 177), a related phrase related to the extracted search reference phrase is acquired (S69). Acquisition of a related phrase is performed by a related phrase acquisition unit 66 as a part of the search reference phrase extraction unit 65. The search reference phrase extraction unit 65 further refers to the screen setting contents (the in-sentence display button 172 to the out-of-sentence display button 174 in FIG. 11) stored in the screen setting content storage unit 71, thereby extracting the search reference phrases and Related phrases related thereto are arranged at predetermined positions of the patent publication stored in the search result storage unit 72. At the same time, the search reference phrase extraction unit 65 activates the image data generation unit 67.

  The image data generation unit 67 generates an HTML file for displaying the gazette display screen by referring to the contents stored in the search result storage unit 72 (S71). The gazette display screen displays the patent gazette selected by the user on the search result list screen (FIG. 13), and is related except when the no display button 171 is selected on the screen setting screen (FIG. 11). The related phrase acquired by the phrase acquiring unit 66 is also displayed. In particular, the related phrase related to the search reference phrase is displayed in the vicinity of the search reference phrase. The image data output unit 68 transmits the generated HTML file to the browser 42 (S73). When receiving the HTML file, the browser 42 decodes the HTML file and displays a bulletin display screen on the display device 11 (S75).

  FIG. 14 is a screen diagram showing a gazette display screen when “abstract”, “display in sentence”, “Japanese”, and “with translation” are selected on the screen for screen setting (FIG. 11). It is. On the gazette display screen of FIG. 14, the original text 191 of the abstract and the translated sentence 192 in Japanese are displayed side by side. As already described, the patent information database 57 stores Japanese abstracts in advance together with Chinese patent gazettes. In the screen setting screen (FIG. 11), when “with translation” is selected, the document search execution unit 62 selects the corresponding translation when acquiring a patent gazette by searching the patent information database 57. Acquire together.

  In the original sentence 191, the extracted search reference phrase is displayed with an underline, and the related phrase corresponding thereto is displayed in parenthesis immediately after that. Thereby, the user can easily find the position of the search reference phrase in the abstract, and can easily visually recognize the correspondence between the search reference phrase and the related phrase. In order to distinguish the related words from other characters in the original text 191, other forms such as bold, italic, different typefaces, color characters, and color reversal characters are adopted in addition to or in combination with parentheses. It is also possible.

  FIG. 15 is a screen diagram showing a gazette display screen when “abstract”, “display outside margin”, “Japanese”, and “with translation” are selected on the screen for screen setting (FIG. 11). It is. On the gazette display screen of FIG. 15, as in FIG. 14, the original text 191 of the abstract and the translated text 192 in Japanese are displayed side by side. In the original text 191, the acquired search reference phrases are displayed with a frame. Further, in the margin 193 of the original sentence 191, the search reference phrase and the related phrase corresponding thereto are displayed side by side in the vicinity of each other. Thereby, the user can determine at a glance the search reference phrases used in the summary, and can easily visually recognize the correspondence between the search reference phrases and the related phrases.

  In the screen setting screen (FIG. 11), the gazette display screen in the case where “abstract”, “display in the middle of the sentence”, “Japanese”, and “with translation” is selected is shown in FIGS. 15 is a mixed screen. That is, the gazette display screen is obtained by adding the margin 193 of FIG. 15 to the original sentence 191 and the translated sentence 192 of FIG.

  The search reference phrase registered in the dictionary by the user is a phrase that is useful for determining whether or not the searched document is a desired document. For example, the search reference phrase is closely related to the new technology that the user aims at. Therefore, the user can narrow down the patent gazettes he / she wants from the searched patent gazettes by visually observing the search reference words and related words / phrases displayed on the screen. As a result, the user can translate only the patent gazette with high necessity by referring to the search reference phrase and the related phrase among the searched patent gazettes, the expenses required for translation, and the search. Can save time. As long as such an effect is exhibited, the related terms to be registered together with the search reference terms may be similar words or other related terms in addition to the translated words and synonyms of the search reference terms.

  As illustrated in FIGS. 14 and 15, the patent information providing server 20 can simultaneously display the translated text of the abstract in addition to the original text of the searched patent gazette. Even in this case, the user can quickly publish a high-priority patent gazette by visually observing the search reference phrase and the related phrase displayed on the screen as compared with the case where the translated sentence of the abstract is referred to. You can narrow down.

  Further, since the search reference phrase and the related phrase can be registered instead of the dictionary, for example, when a plurality of projects are launched in the same company using the patent information providing server 20, the project By using a different dictionary for each, it is possible to make an accurate judgment for each project with respect to the importance of the searched patent gazette. In addition, by registering search reference words and related words that do not depend on a project in the common dictionary, it is possible to reduce the trouble of duplicate registration by a plurality of projects.

  When the user clicks the menu return button 148 on the gazette display screen (FIG. 14 or 15), the browser 42 deletes the gazette display screen from the display device 11, and the menu screen once saved in the user terminal 10 (FIG. 8) is displayed (S77). When the user clicks the related phrase registration button 113 again, the browser 42 deletes the menu screen from the display device 11, and displays the related phrase registration screen (FIG. 9) once stored in the user terminal 10 (S79). ). When the user clicks the list display button 133 on the related word registration screen (S81), the browser 42 transmits selection data corresponding to the list display to the patent information providing server 20 (S83). When receiving the selection data, the receiving unit 61 of the patent information providing server 20 causes the image data generating unit 67 to generate an HTML file for displaying a related word / phrase list display screen. The image data output unit 68 transmits the generated HTML file to the browser 42 (S85). When the browser 42 receives the HTML file, the browser 42 decodes the HTML file and displays a related phrase list display screen on the display device 11 (S87). In step S19, since the set of the search reference phrase and the related phrase has already been sent to the browser 42, the image data generation unit 67 does not need to read the set of the search reference phrase and the related phrase again.

  FIG. 16 is a screen diagram showing a related word / phrase list display screen. The related phrase list display screen is a screen similar to the related phrase registration screen (FIG. 9). However, the words displayed in the input fields 141 to 145 cannot be changed or deleted by the user, and new words cannot be input to the input fields 141 to 145. The related word / phrase list display screen simply displays the related words / phrases registered in the selected dictionary. The sort button 140 may function in the same manner as that on the related phrase registration screen. The related phrase list display screen is useful when browsing registered contents without fear of changing the related phrase.

  When the user clicks the menu return button 148 on the related word / phrase list display screen, the browser 42 deletes the publication display screen from the display device 11 and displays the menu screen (FIG. 8) once stored in the user terminal 10. It is displayed (S89). When the user clicks the logoff button 116 (S91), the browser 42 transmits data for instructing logoff to the patent information providing server 20 (S93). When receiving the data, the receiving unit 61 of the patent information providing server 20 performs a logoff procedure. On the other hand, the browser 42 ends in the user terminal 10 (S95).

  Next, a configuration that makes it easier to register a set of search reference phrases and related phrases is described. As shown in FIG. 17, the patent information providing server 20 may be configured such that the user can register a set of a search reference phrase and its related phrase on the gazette display screen. When the user drags a word or phrase desired to be registered as a search reference phrase from the original text 191 with a mouse or the like and right-clicks, the browser 42 displays the related phrase registration screen 200 on the bulletin display screen. For example, when the image data generation unit 67 of the patent information providing server 20 generates an HTML file for displaying a gazette display screen, the related word / phrase registration screen 200 is attached to the HTML file. This can be realized by pasting a script or applet for causing the browser 42 to display the related word / phrase registration screen 200 in response to the right click of the mouse on the HTML file.

  Input fields 201 to 205 are displayed on the related phrase registration screen 200. In the input field 201, the dragged word / phrase is already input. These input fields 201-205 function in the same manner as the input fields 141-145. When the user clicks the registration button 206 after inputting a desired related phrase in the input fields 202 to 205, the content input to the input fields 201 to 205 is sent to the patent information providing server 20 by the browser 42 (S25). ) And is registered in the related phrase storage unit 70 in the data format illustrated in FIG. 10 (S27). At that time, the related word / phrase registration unit 63 (FIG. 4) refers to the storage content of the screen setting content storage unit 71, and the dictionary selected by the user on the screen setting screen (FIG. 11) from the dictionaries A to C. A set of a search reference phrase and its related phrase is registered.

  Next, the function of the data capture button 131 on the related phrase registration screen (FIG. 9) will be described. The user inputs in advance a set of search reference words and related words to be registered in a table 220 created by spreadsheet software (for example, “Excel (registered trademark)” of Microsoft Corporation) as shown in FIG. The table 220 is stored in a folder in the user terminal 10 determined by the patent information providing server 20. In the table 220, items 210 to 215 are arranged. These items 210 to 215 correspond to the items 150 to 155 of the table 160 in FIG.

  When the user clicks the data capture button 131 on the related word registration screen (FIG. 9), the browser 42 displays the contents of the items 211 to 215 in the line corresponding to the dictionary selected by the buttons 121 to 124. The information is picked up from 220 and input into the input fields 141 to 145 on the related phrase registration screen. Such a function is realized, for example, by pasting a script or applet into an HTML file when the image data generation unit 67 of the patent information providing server 20 generates an HTML file for displaying a related phrase registration screen. Can do. When the user clicks the registration button 136 on the related word / phrase registration screen (FIG. 9), the contents of the table 220 input to the input fields 141 to 145 are sent to the patent information providing server 20 by the browser 42 (S25). Then, it is registered in the related phrase storage unit 70 in the data format illustrated in FIG. 10 (S27).

  In FIGS. 5 and 6, the user selects registration of a related phrase by clicking the related phrase registration button 113 on the menu screen (FIG. 8) (S 15), and the screen is set by clicking the screen setting button 114. The setting is selected (S31), the document search is selected by clicking the patent publication search button 115 (S45), and the related word / phrase registration button 113 is further clicked to select the related word / phrase registration again (S79). An example is shown in which each process proceeds in order. However, the user may click the buttons 113 to 115 in any order on the menu screen, and it goes without saying that the document search system 300 executes processing corresponding to the clicked button regardless of the order. Yes.

  FIG. 19 is a block diagram showing a document search system according to another embodiment of the present invention. The document search system 400 is configured by connecting the translation server 16 to the document search system 300 through the Internet 14. As is well known, routers 13 and 15 are inserted between different networks. The translation server 16 is equivalent to the translation server 3 in the conventional system 500, for example. The user terminal 10 can translate a patent gazette in Chinese into, for example, Japanese by using the translation server 16 for the patent gazette searched by accessing the patent information providing server 20. By using the patent information providing server 20, it is possible to easily determine the importance of the searched patent gazette, and to reduce costs and time by translating only those determined to be important. . Similar to the patent information providing server 1 of the conventional system 500, the patent information providing server 20 also accesses the translation server 16 based on an instruction from the user terminal 10 and acquires a translation for the searched patent publication. It may be configured to transmit to the user terminal 10.

  The document retrieval system of the present invention can take various modifications as described below.

  (1) In the above embodiment, the Japanese translation of the summary document is stored in the patent information database 57 together with the Chinese patent gazette, but the Japanese translation may be omitted.

  (2) In the above embodiment, as related words / phrases related to the search reference word / phrase, a plurality of words / phrases can be registered for Japanese, and only a single word / phrase can be registered for English. On the other hand, the document search system 300 may be configured so that only a single word can be registered for Japanese. Further, the document search system 300 may be configured such that a plurality of words can be registered for both Japanese and English.

  (3) In the above embodiment, the patent gazette stored in the patent information database 57 and searched by the document search execution unit 62 is a Chinese patent gazette in Chinese. It may be a patent gazette of the country in question. In addition, the patent publication may be widely replaced with technical documents, or may be replaced with more general documents.

  (4) In the above embodiment, the language of the related phrase related to the search reference phrase is Japanese and English, but generally, the language of the related phrase may be any language other than the search reference phrase. In addition, the language of the related phrase may be only one language or may be languages of three or more countries. Further, the document search system may be configured so that the user can specify the language of the related phrase on the screen displayed on the display device 11. In this case, when the language of the related phrase is specified, the specified language is registered in the related phrase storage unit 70 by the related phrase registration unit 63, for example. The image data generation unit 67 displays, for example, “Japanese translation words”, “English translation words” or the like on the related phrase registration screen of FIG. 9 based on the setting contents stored in the related phrase storage unit 70, or FIG. The display of “Japanese”, “English”, etc. on the search condition input screen is changed to the set language.

  (5) In the above embodiment, when the document search execution unit 62 searches for a patent publication, before the publication information display screen (FIG. 14 or FIG. 15) is sent from the patent information providing server 20 to the browser 42, A search result list screen (FIG. 13) was sent. On the other hand, as a result of searching the patent gazette by the document search execution unit 62, if only one patent gazette is found, the patent information providing server 20 does not send a search result list screen to the browser 42, The search reference phrase extraction unit 65 and the image data generation unit 67 may be activated to immediately send a bulletin display screen (FIG. 14 or FIG. 15).

  (6) In the above embodiment, the document search execution unit 62 stores the information and search conditions necessary for creating the search result list screen in the search result storage unit 72 after the search processing in step S55 and is searched. As for the contents of the patent gazette, only those corresponding to the selection data were stored after step S65. On the other hand, the document search execution unit 62 stores not only the information and search conditions necessary for creating the search result list screen but also the contents of the searched patent publications after the search processing in step S55. It may be stored in the unit 72. In this case, the document search execution unit 62 does not need to search the patent information database 57 again for a patent publication corresponding to the selected data after step S65. However, only the patent gazette corresponding to the selected data is stored in the search result storage unit 72 in the above-described embodiment in the case where a large number of searched patent gazettes are stored. Can be saved.

  (7) In the screen setting screen of FIG. 11, if no translated text is stored in the patent information database 57 in advance, the translated text display selection button 178 is fixed to “none” and cannot be selected by the user. It is also possible to generate the translated sentence display selection button 178 so that it is not displayed. For this purpose, for example, the image data generation unit 67 may access the patent information database 57, acquire information about the presence / absence of a translation, and generate an HTML file that displays a screen setting screen.

  (8) The image data generation unit 67 may be configured to acquire necessary information and generate an HTML file according to the information. That is, the image data generation unit 67 acquires information on what is the language of the patent publication from the patent information database 57, and in the screens illustrated in FIG. 9 and FIG. You may make it change the display regarding a kind. For example, if the language of the patent publication stored in the patent information database 57 is German, the display of “Chinese” on the keyword language selection button 186 on the search condition input screen of FIG. 12 may be changed to “German”. The display of the publication selection buttons 181 and 182 may be changed to the name of the German publication.

  (9) In the above embodiment, the image data generation unit 67 generates an HTML file. However, the image data generation unit 67 may generate other types of data including an XML file.

  (10) In the above embodiment, the user terminal 10 and the patent information providing server 20 are connected via the LAN 18, but may be connected via the Internet.

  (11) In the above embodiment, the application 53 operates the patent information database 57 via the API 54 and the DBMS 56, but the application 53 may operate the patent information database 57 directly. In addition, the application 53 may operate directly on the storage contents of the related phrase storage unit 70 which is a kind of database, or may operate it via the API 54 and the DBMS 56. Further, the patent information providing server 20 may be configured such that the application 53 bears the function of the WEB server software 52 without using the WEB server software 52 (FIG. 3).

  (12) In the above embodiment, the user terminal 10 uses the browser 42 to use the patent information providing server 20, but the user terminal 10 can be used using an application other than the browser 42. The patent information providing server 20 may be configured.

  (13) In the above embodiment, the user uses the patent information providing server 20 from the user terminal 10 through a network such as the LAN 18. On the other hand, it is possible to incorporate the function of the patent information providing server 20 into each user terminal 10. That is, the document search systems 300 and 400 can be realized by a single computer.

  (14) In the above embodiment, the document search systems 300 and 400 also include the patent information database 57. On the other hand, the patent information database 57 may be a database outside the document search systems 300 and 400 and accessible by the document search systems 300 and 400. For example, in FIG. 3, the document search system 300 includes a web server 40 excluding the database server 50 from the patent information providing server 20 and a user terminal 10 connected to the web server 40 via the LAN 18 or the Internet 14. Also good.

It is a block diagram which shows the hardware constitutions of the document search system by one embodiment of this invention. It is a block diagram which shows the hardware constitutions of the patent information provision server of FIG. It is explanatory drawing which shows typically the software structure of the user terminal of FIG. 1, and a patent information provision server. It is a block diagram which shows the structure based on the function of the patent information provision server of FIG. It is a sequence diagram which shows the process sequence of the document search system of FIG. FIG. 6 is a sequence diagram illustrating a processing procedure following FIG. 5. It is a screen figure which shows the login screen by one embodiment of this invention. It is a screen figure which shows the menu screen by one embodiment of this invention. It is a screen figure which shows the related phrase registration screen by one embodiment of this invention. It is a data structure figure which shows the structure of the data memorize | stored in the related phrase memory | storage part of FIG. It is a screen figure which shows the screen for a screen setting by one embodiment of this invention. It is a screen figure which shows the search condition input screen by one embodiment of this invention. It is a screen figure which shows the search result list screen by one embodiment of this invention. It is a screen figure which shows the gazette display screen by one embodiment of this invention. It is a screen figure which shows the gazette display screen by one embodiment of this invention. It is a screen figure which shows the related word phrase list display screen by one embodiment of this invention. It is a screen figure which shows the gazette display screen by one embodiment of this invention. It is explanatory drawing of the table | surface used as the object of data acquisition by one embodiment of this invention. It is a block diagram which shows the hardware constitutions of the document search system by another embodiment of this invention. It is a block diagram which shows schematic structure of the document search system by a prior art. It is a screen figure which shows the display screen of the patent gazette by a prior art.

Explanation of symbols

10 User terminal 20 Patent information providing server 30 Recording medium 57 Patent information database (database)
61 Receiver (Receiver)
62 Document Search Execution Unit 63 Related Phrase Registration Unit 65 Search Reference Phrase Extraction Unit (Search Reference Phrase Extraction Unit)
66 Related Phrase Acquisition Unit (Related Phrase Acquisition Unit)
67 Image data generation unit (image data generation means)
68 Image data output unit (image data output means)
70 Related Phrase Storage Unit (Related Phrase Storage Unit)
81 Keyword search part (keyword search means)
82 Keyword-related phrase extraction unit (keyword-related phrase extraction means)
300,400 document retrieval system

Claims (16)

A document search system for searching for a search document corresponding to a search condition from a database in which a plurality of documents described in a first country language are stored in a first country language document storage unit,
Input means for inputting the search reference phrase in the first country language and the related phrase in the second country language of the search reference phrase in association with each other;
Related phrase storage means for storing the search reference phrase and the related phrase input by the input means in association with each other;
Search reference phrase extraction means for extracting a search reference phrase stored in the related phrase storage means from the search document;
Display means for displaying a related phrase related to the search reference phrase in the vicinity of the search reference phrase extracted by the search reference phrase extraction means by referring to the stored contents of the related phrase storage means. Feature document retrieval system.   2. The document search system according to claim 1, wherein the display means displays a related phrase related to the search reference phrase in the vicinity of the search reference phrase in the search document.   2. The document search system according to claim 1, wherein the display means displays a search reference phrase and a related phrase related to the search reference phrase outside the search document. The display means includes
A first display format for displaying a related word / phrase related to the search reference word / phrase in the vicinity of the search reference word / phrase in the search document, and a search reference word / phrase and a related word / phrase related to the search reference word / phrase outside the search document. With the second display format, it is possible to display a related phrase related to the search reference phrase in the vicinity of the search reference phrase extracted by the search reference extraction means,
The document search system further comprises display format selection means for selecting a display format by the display means,
2. The document search system according to claim 1, wherein the display unit displays at least one of the first display format and the second display format according to the display format selected by the display format selection unit. .   The document search system according to any one of claims 1 to 4, wherein the display unit displays the related phrase in a typeface different from the document typeface of the search document. The related phrase storage means classifies and stores a set of search reference phrases and related phrases inputted by the input means into a plurality of categories,
The document search system includes:
A storage section specifying means for specifying a section to which the search reference phrase to be stored by the related phrase storage section and the related phrase belong,
The related phrase storage means associates the search reference phrase input by the input means and the related phrase with each other, classifies and stores them in the category designated by the storage category designation means,
The document search system includes:
The search reference phrase extracting means further comprises an extraction category specifying means for specifying a category to which a search reference phrase to be extracted from the search document belongs,
The search reference phrase extraction unit extracts, from the search document, a search reference phrase stored in the related phrase storage unit that belongs to a category specified by the extraction category specification unit. Item 6. The document search system according to any one of Items 1 to 5. The plurality of sections include a common section that is subject to extraction of search reference phrases by the search reference phrase extraction means regardless of designation by the extraction section designation means,
The search reference phrase extraction unit extracts, from the search document, a search reference phrase stored in the related phrase storage unit that belongs to the selection category specified by the extraction category specification unit, and the extraction category 7. The document search system according to claim 6, wherein those belonging to the common category are extracted from the search document regardless of designation by the designation means. In addition to the search reference phrase in the first country language and the related phrase in the second country language of the search reference phrase, the input means associates and inputs the related phrase in the third country language of the search reference phrase. ,
The related phrase storage means stores the search reference phrase input by the input means, the related phrase in the second country language, and the related phrase in the third country language in association with each other. The document search system according to claim 1. Language designation means for designating the language of the related phrase to be displayed by the display means,
The display means displays, in the vicinity of the search reference word / phrase extracted by the search reference word / phrase extraction means, a related word / phrase related to the search reference word / phrase in a language designated by the language designation means. The document search system according to claim 8. The input means inputs the search reference phrase in the first country language in association with a plurality of related phrases in the second country language of the search reference phrase,
The said related phrase memory | storage means stores the search reference phrase input by the said input means, and the some related phrase by the said 2nd country language in correlation with each other, Claims 1-7 characterized by the above-mentioned. The document search system described in any of the above. A display word / phrase designating unit for designating what should be displayed by the display unit among a plurality of related words / phrases input in association with a search reference word / phrase by the input unit;
The display means displays, in the vicinity of the search reference phrase extracted by the search reference phrase extraction means, a plurality of related phrases related to the search reference phrase that are specified by the display phrase specification means. The document search system according to claim 10, wherein: The input means further inputs an instruction to display the stored contents of the related phrase storage means,
When the instruction to display the stored contents of the related phrase storage unit is input by the input unit, the display unit associates the search reference phrase stored in the related phrase storage unit with the related phrase. 12. The document search system according to claim 8, wherein the document search system displays a list. Keyword input means for inputting a keyword in a second country language for keyword search as the search condition;
Keyword-related phrase extraction means for extracting a search reference phrase in a first country language related to the keyword input by the keyword input means by referring to the stored content of the related phrase storage means;
The keyword search means for searching a document including the search reference phrase extracted by the keyword-related phrase extraction means from the database as the search document, further comprising: Document retrieval system.   The document retrieval system according to claim 1, wherein each of the plurality of documents stored in the database is a patent publication. A computer that searches for a search document that meets a search condition from a database in which a plurality of documents described in a first language is stored in a first language document storage unit.
Receiving means for receiving a search reference phrase in the first country language and a related phrase in the second country language of the search reference phrase inputted in association with each other;
Related phrase storage means for storing the search reference phrase and the related phrase input by the receiving means in association with each other;
Search reference phrase extraction means for extracting a search reference phrase stored in the related phrase storage means from the search document;
Image data generation for generating image data for displaying a related phrase related to the search reference phrase in the vicinity of the search reference phrase extracted by the search reference phrase extraction means by referring to the stored contents of the related phrase storage means Means,
A document search program that functions as image data output means for outputting the image data generated by the image data generation means. A computer-readable recording medium on which the document search program according to claim 15 is recorded.

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