JP2018049469A - Information providing apparatus, information providing system, information providing program, and information providing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a file stored in a device on a network to be properly browsed from a user terminal.SOLUTION: An information providing apparatus which transmits a file corresponding to a content reference request from a terminal includes: a receiving unit which receives a reference request containing an identifier of a first file to be referred and a search keyword; an extraction unit which extracts a predetermined range including the search keyword in the first file; a file creation unit which creates a second file of a first file format which is the same as the first file containing the extracted range, and creates a third file by converting the second file into a second file format different from the first file format; and a processing unit which selects one of the second and third files, in accordance with compatibility of the terminal with respect to the file format and the size of the second and third files, included in the reference request, acquired from another device, or held in a storage unit of the information providing apparatus, to be transmitted from a transmission unit to the terminal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an information providing apparatus, an information providing system, an information providing program, and an information providing method.

  There is a case where a file such as a word processor (MS Word (registered trademark)) or a presentation (MS PowerPoint (registered trademark)) or the like stored in a cloud storage or the like at a remote location is accessed from a user terminal. For example, there is a case where the sales representative does not save the file to be referred to on the terminal that is taken out, and accesses the document file from the destination via the network. In such a situation, for example, when you want to check only one sales data graph included in the material, you do not necessarily need all the data in the data format of the original file. There are many cases. In addition, when performing data access from a remote place, unlike a normal office environment, a device such as a smartphone that has restrictions on data access may be used.

  Conventionally, even when only a part of information of an original file is necessary, since data access downloads all data of the file, it takes a long time to complete the transfer. In addition, when the file format is not compatible with the user terminal, it may not be possible to browse even after downloading.

  On the other hand, a technology that provides a viewing environment according to the content of the electronic document when browsing on a mobile device by converting to text data when the character ratio of the electronic document is high, and converting to text data otherwise Is disclosed (Patent Document 1). In this technique, general-purpose text data or image data has a format that can be handled by any portable device, so that it is possible to avoid a situation in which browsing becomes impossible. However, when converted to text data, the information of the figure is missing, so even if the terminal has the ability to display the figure, the figure cannot be displayed and the information that can be viewed is missing. There's a problem. In addition, since the entire original file is converted into text or image, processing and transfer processing for unnecessary data occurs, and there remains a problem that the time until transfer completion is unnecessarily long.

  On the other hand, there is disclosed a technique for transmitting, to a terminal, data obtained by processing the contents of a Web page based on information registered and selected in advance by a user in accordance with access from the terminal (Patent Documents 2 and 3). However, it is not intended for files such as commonly used word processors and presentations, and cannot solve the problems described above.

JP 2010-039712 A JP 2002-351734 A JP 2013-145565 A

  As described above, there are some problems when browsing a file stored in a device on a network from a user's terminal, and a solution has been desired.

  That is, it is difficult to provide the user terminal with the file requested by the user terminal in a file format suitable for the user terminal and with a small amount of data.

  Therefore, an object of one aspect is to provide an information providing apparatus capable of transmitting a file requested by a user terminal in a file format suitable for the user terminal with a small amount of data.

  In one aspect, an information providing apparatus that transmits a corresponding file in response to a content reference request from a terminal, a receiving unit that receives a reference request including an identifier of a first file to be referred to and a search keyword; An extraction unit for extracting a predetermined range including the search keyword of the first file, and creating a second file of the same first file format as the first file containing the extracted range, A file creation unit for creating a third file obtained by converting the second file into a second file format different from the first file format, and included in the reference request, acquired from another device, or Depending on the correspondence to the file format of the terminal and the file sizes of the second file and the third file held in the storage unit of the information providing apparatus, Select one of the second file or the third file, having a processing unit to be transmitted to the terminal from the transmitting unit.

  It is possible to provide an information providing apparatus capable of transmitting a file requested by a user terminal in a file format suitable for the user terminal with a small amount of data.

It is a figure which shows the structural example of the system concerning one Embodiment. It is a figure which shows the function structural example of a user terminal. It is a figure which shows the function structural example of a server. It is a figure which shows the hardware structural example of a user terminal. It is a figure which shows the hardware structural example of a server. It is a sequence diagram which shows the process example of embodiment. It is a figure which shows the example of a screen in a user terminal. It is a figure which shows the example of the header information of an http request. It is a flowchart which shows the process example until selection of the file for browsing in a server. It is a figure which shows the example of a search application corresponding table. It is a figure which shows the example of the file for browsing transmitted.

  Hereinafter, preferred embodiments of the present invention will be described.

<Configuration>
FIG. 1 is a diagram illustrating a configuration example of a system according to an embodiment. In FIG. 1, user terminals 1A, 1B,... Can be connected to a server 3 via a network 2 such as the Internet. The connection may be wired or wireless. The user terminals 1A, 1B,... Are information processing apparatuses such as smartphones, tablets, mobile phones, and PCs (Personal Computers). The server 3 provides file data such as a word processor and a presentation requested to the user terminals 1A, 1B,... As a remote cloud storage.

  FIG. 2 is a diagram illustrating a functional configuration example of the user terminal 1 (1A, 1B,...). In FIG. 2, the user terminal 1 includes a dedicated application 11 and an OS (Operating System) 12. The dedicated application 11 is a processing entity of an application program for using the function of the server 3. The OS 12 is a processing entity of basic software in the user terminal 1.

  The dedicated application 11 includes a control unit 111, a file list display unit 112, a communication unit 113, a browsing file selection unit 114, and a search expression input unit 115. In addition, the dedicated application 11 includes a support extension acquisition unit 116, an http (Hyper Text Transfer Protocol) conversion unit 117, a browsing file display unit 118, and processing data 119.

  The control unit 111 has a function of performing overall control of the dedicated application 11. The file list display unit 112 has a function of accessing a predetermined URL (Uniform Resource Locator) for acquiring the file list of the server 3 to acquire the accumulated file list data and displaying it to the user. ing. The communication unit 113 has a function of performing data communication (request transmission, response reception, etc.) with the server 3 according to a predetermined protocol.

  The browsing file selection unit 114 has a function of accepting selection of a file to be browsed by the user from the displayed file list. The search expression input unit 115 has a function of accepting a search expression including a search keyword for specifying a portion to be browsed in a file to be browsed from a user. The search expression may be a single search keyword or, for example, means an AND search by describing a plurality of search keywords separated by spaces in a format allowed by the search application 33 on the server 3 side described later. Also good.

  The support extension acquisition unit 116 has a function of acquiring from the management information of the OS 12 a file format that can be supported (opened) by the user terminal 1. The http conversion unit 117 has a function of converting information such as a target file name, a search expression, and a support extension into an http request that is transmitted to the server 3. The browsing file display unit 118 has a function of displaying the browsing file transmitted from the server 3 to the user. The process data 119 is data that is updated / referenced during the process of the dedicated application 11.

  FIG. 3 is a diagram illustrating a functional configuration example of the server 3. In FIG. 3, the server 3 includes a dedicated application 31, a file server 32, a search application 33, a drawing application 34, and a PDF conversion application 35. The dedicated application 31 is a processing entity of an application program for realizing a file browsing function for the user terminal 1. The file server 32 has a function of accumulating files that may be browsed. Note that the file server 32 may be provided outside the server 3.

  The search application 33 is a processing entity of an application program having a function of performing a search using a keyword according to a file format. Since applications such as word processors and presentations generally have a search function, such an application itself can be used as the search application 33. The drawing application 34 is a processing entity of an application program having a function for generating an image file. The PDF conversion application 35 is a processing entity of an application program having a function of generating a PDF (Portable Document Format) file. Note that the PDF conversion application 35 may not be installed on the server 3.

  The dedicated application 31 includes a control unit 311, a communication unit 312, a target file name acquisition unit 313, a search expression acquisition unit 314, and a support extension acquisition unit 315. The dedicated application 31 includes a browsing source file creation unit 316, a browsing conversion file creation unit 317, a browsing file selection unit 318, and processing data 319.

  The control unit 311 has a function of performing overall control of the dedicated application 31. The communication unit 312 has a function of performing data communication (request reception, response transmission, etc.) with the user terminal 1 according to a predetermined protocol. The target file name acquisition unit 313 has a function of acquiring a target file name from header information of an http request (for example, a GET request) received from the user terminal 1. The search formula acquisition unit 314 has a function of acquiring a search formula from the header information of the http request received from the user terminal 1. The support extension acquisition unit 315 has a function of acquiring a support extension from the header information of the http request received from the user terminal 1.

  The browsing source file creation unit 316 searches the file with the target file name using a search expression by the search application 33 and extracts a predetermined range including a search keyword satisfying the search expression (for example, a page including the search keyword). In addition, it has a function of creating a file having the same file format as the target file (hereinafter referred to as a browsing source file). The browsing conversion file creation unit 317 has a function of creating a file (hereinafter referred to as a browsing conversion file) obtained by converting the same contents as the browsing source file into a PDF file or an image file. Conversion to a PDF file is performed when the PDF conversion application 35 is installed on the server 3 side and “.pdf” is included in the support extension on the user terminal 1 side. In other cases, conversion to an image file is performed. To do. The browsing file selection unit 318 determines whether the browsing source file is provided as a browsing file to be provided to the user terminal 1 based on the support extension on the user terminal 1 side, the browsing source file, and the file size of the browsing conversion file. It has a function to select one of the browsing conversion files. The processing data 319 is data that is updated / referenced in the course of processing in the dedicated application 31.

  FIG. 4 is a diagram illustrating a hardware configuration example of the user terminal 1. In FIG. 4, a user terminal 1 includes a CPU (Central Processing Unit) 1002, a ROM (Read Only Memory) 1003, a RAM (Random Access Memory) 1004, and an NVRAM (Non-Volatile Random Access Memory) 1005 connected to a system bus 1001. It has. Further, the user terminal 1 includes an I / F (Interface) 1006, an I / O (Input / Output Device) 1007, an HDD (Hard Disk Drive) / SSD (Solid State Drive) 1008, which are connected to the I / F 1006. A network interface card (NIC) 1009. The user terminal 1 includes a monitor 1010, a keyboard 1011, a mouse 1012, and the like connected to the I / O 1007. A CD / DVD (Compact Disk / Digital Versatile Disk) drive or the like can be connected to the I / O 1007.

  The functions of the user terminal 1 described in FIG. 2 are realized by a predetermined program being executed in the CPU 1002. The program may be acquired via a recording medium, may be acquired via a network, or may be embedded in a ROM.

  FIG. 5 is a diagram illustrating a hardware configuration example of the server 3. In FIG. 5, the server 3 includes a CPU 3002, a ROM 3003, a RAM 3004, and an NVRAM 3005 connected to a system bus 3001. The server 3 also includes an I / F 3006, an I / O 3007, an HDD / SSD 3008, a NIC 3009 connected to the I / F 3006, a monitor 3010 connected to the I / O 3007, a keyboard 3011, a mouse 3012, and the like. . A CD / DVD drive or the like can also be connected to the I / O 3007.

  The functions of the server 3 described with reference to FIG. 3 are realized by executing a predetermined program in the CPU 3002. The program may be acquired via a recording medium, may be acquired via a network, or may be embedded in a ROM.

<Operation>
FIG. 6 is a sequence diagram showing a processing example of the above embodiment. In FIG. 6, when the user inputs a predetermined URL for acquiring the file list of the server 3 to the user terminal 1 (step S <b> 101), the file list display unit 112 of the user terminal 1 displays the input URL of the server 3. Access is made via the communication unit 113 (step S102). When the server 3 receives the access, the server 3 sends back to the user terminal 1 the data of the file list that is stored in advance in association with a predetermined URL for acquiring the file list or dynamically created (step S103). When the file list display unit 112 of the user terminal 1 receives the data of the file list via the communication unit 113, the file list display unit 112 temporarily stores it as a part of the processing data 119 and displays the file list to the user (step). S104). FIG. 7 shows an example of a screen on the user terminal 1. In the window of the dedicated application 11, an area “a” where a user inputs a URL and an area “b” where a file list is displayed are provided.

  Returning to FIG. 6, when the user selects a file to be browsed from the file list and inputs a search formula (step S105), the browse file selection unit 114 accepts the selection of the file, and the search formula input unit 115 displays the search formula. Accept input. In the screen example shown in FIG. 7, the files “sales information of network device A” and “sales information of network device A” are selected from the file list in region b and displayed in the browsing file in region e. Has been. Note that the directory can be changed in the file list in the area b, and the selected file is added to the browsing file in the area e. In addition, as shown in the region f, “2016 sales data” is input as a retrieval formula. It is possible to select all the files from the file list and deselect them by pressing the “select all / deselect all” button g, and from the file list by pressing the “select / deselect” button h. You can select and deselect files. By pressing the “browse” button i, the selected / input information is confirmed and a request is made to the server 3.

  Returning to FIG. 6, the http conversion unit 117 of the user terminal 1 includes, in the header information, the target file name and search expression selected / input by the user and the support extension acquired by the support extension acquisition unit 116 in the header information. Conversion into a request is performed (step S106). FIG. 8 shows an example of http request header information. In addition to general information (Accept, Accept-Language, User-Agent, Accept-Encoding, Host, etc.), “Full request URI” shown in a, “X-Search-Key” shown in b and “X-Accept-Extension” shown in c are provided. “Full request URI” in a corresponds to the target file name, “X-Search-Key” in b corresponds to the search expression, and “X-Accept-Extension” in c corresponds to the supported extension. 8 shows an example of a search expression “2016 sales data” as the contents of “X-Search-Key”, and Japanese characters are URL-encoded.

  Returning to FIG. 6, the communication unit 113 of the user terminal 1 transmits to the server 3 an http request including the target file name, the search expression, and the support extension in the header information converted by the http conversion unit 117 (step S107). .

  When the server 3 receives the http request by the communication unit 312, the target file name acquisition unit 313, the search expression acquisition unit 314, and the support extension acquisition unit 315 receive the target file name, the search expression, and the support extension from the header information. Is acquired (step S108). Information about the acquired target file name, search expression, and support extension is temporarily stored as part of the processing data 319.

  The browsing source file creation unit 316 creates a browsing source file (step S109), and the browsing conversion file creation unit 317 creates a browsing conversion file (step S110). The created browsing source file and browsing conversion file are temporarily stored as part of the processing data 319. Next, the browsing file selection unit 318 selects either the browsing source file or the browsing conversion file as a browsing file (step S111). Details of these processes will be described later.

  Then, the communication unit 312 of the server 3 returns the browsing file to the user terminal 1 (step S112). Receiving this, the user terminal 1 displays the browsing file to the user by the browsing file display unit 118 (step S113).

  FIG. 9 is a flowchart showing a processing example up to selection of a browsing file in the server 3. 9, the target file name acquisition unit 313, the search expression acquisition unit 314, and the support extension acquisition unit 315 acquire the target file name, the search expression, and the support extension from the header information (FIG. 8) of the received http request. (Step S201). The acquired information is temporarily stored as part of the processing data 319.

  Next, the browsing source file creation unit 316 selects the search application 33 from the extension of the file with the target file name, acquires the file with the target file name from the file server 32, and opens it (step S202). FIG. 10 shows an example of a search application correspondence table. The browsing source file creation unit 316 selects the search application 33 from the file extension of the target file name. For example, if the extension is ".doc" or ".docx", select "MS Word", and if the extension is ".ppt" or ".pptx", select "MS PowerPoint" To do.

  Returning to FIG. 9, the browsing source file creation unit 316 executes a search by applying the search formula to the search application 33 (step S <b> 203), and a predetermined range including a hit part in the search (e.g., specified by the search formula). A page or slide including the character string) is newly created as an original file for browsing in the original file format (step S204). For example, it is assumed that the title of the chart “Sales data in 2016” is hit as a result of performing a search with the search expression “2016 sales data”. In this case, the page including the chart is extracted (copied), and the browsing source file is created by pasting (pasting) the extracted content into the newly created file content in the same file format. In addition, when a search hits a plurality of parts in the same file, contents are extracted for each part. The predetermined range to be extracted is not limited to a page. For example, it may be a paragraph or section including a hit part, or may be a predetermined number of pages, paragraphs or sections before and after the hit part.

  Next, the browsing conversion file creation unit 317 determines whether the PDF conversion application 35 has been installed and whether the support extension includes “pdf” (step S205). If the condition is satisfied (Yes in step S205), the browsing conversion file creation unit 317 converts the same content as the browsing source file into a PDF file and creates a browsing conversion file (step S206). If not satisfied (No in step S205), the browsing conversion file creation unit 317 creates the browsing conversion file by converting the same content as the browsing source file into an image file (step S207).

  Next, the browsing file selection unit 318 determines whether or not the browsing source file is smaller than the browsing conversion file (step S208). When the browsing source file is smaller than the browsing conversion file (Yes in step S208), the browsing file selection unit 318 determines whether the extension of the browsing source file is included in the support extension (step S208). S209).

  When the extension of the browsing source file is included in the support extension (Yes in step S209), the browsing file selection unit 318 selects the browsing source file as a browsing file (step S210). In other cases (No in step S208, No in step S209), the browsing file selection unit 318 selects the browsing conversion file as a browsing file (step S211).

  When there are a plurality of target file names, the above processing is performed for each file with the target file name.

  In addition, the case where the support identifier which shows the file format which can be supported in the user terminal 1 was included in the http request transmitted from the user terminal 1 was demonstrated. However, when the information in which the support identifier is associated with the ID or IP address of the user terminal 1 in advance can be referred to on the server 3 side (obtained from another device or information stored in the server 3 can be obtained). , The support identifier may not be included in the http request.

  FIG. 11 is a diagram illustrating an example of a browsing file transmitted to the user terminal 1. The user terminal 1 </ b> A is a PC, MS Word is installed, MS PowerPoint is not installed, the user terminal 1 </ b> B is a smartphone, and MS Word is also MS PowerPoint is not installed. Further, the server 3 does not perform conversion into a PDF file.

  Also, the MS Word 700 pages and 30 MB files stored in the server 3 and the MS PowerPoint 200 slides (pages) and 10 MB files are requested from the user terminals 1A and 1B, and an equivalent search expression is input. It is said. In the server 3, from the MS Word and MS PowerPoint original files, 10 pages, 0.5 MB MS Word files, 4 slides (pages), 0 as browsing source files of the respective file formats based on the search results. .2MB MS PowerPoint file is created. In addition, 10 pages, 2 MB image files, 4 slides (pages), and 0.6 MB image files are created as browsing conversion files.

  In this example, since MS Word can be browsed in the user terminal 1A, a browse source file having a small file size is transmitted as a browse file. In the user terminal 1A, since MS PowerPoint cannot be browsed, the browse conversion file of the image file is transmitted as the browse file. Further, since both MS Word and MS PowerPoint cannot be browsed on the user terminal 1B, the browse conversion file of the image file is transmitted as a browse file.

  The browsing file provided to the user by the above processing has a predetermined range including a portion that matches the user-specified search expression, and the file size is smaller than the original file. It is possible to shorten the time until transmission completion (transfer completion) including time. Moreover, since the file format is the same as the original file, or an image file or a PDF file, no information is lost in the extracted range. Moreover, since a file format that can be supported by the user terminal 1 is selected from the created files, there is no inconvenience that the user terminal 1 cannot view the file, and no additional installation of an application is required. In addition, since the browsing file having the minimum file size is provided among the created files, the time until transmission completion (transfer completion) can be shortened.

<Summary>
As described above, according to the present embodiment, it is possible to provide an information providing apparatus that can transmit a file requested by a user terminal in a file format suitable for the user terminal with a small amount of data.

  In the above, it demonstrated by preferred embodiment. While specific embodiments have been illustrated and described herein, it will be apparent that various modifications and changes may be made thereto without departing from the broad spirit and scope as defined in the claims. . That is, it should not be construed as being limited by the details of the specific examples and the accompanying drawings.

  The file with the target file name is an example of a first file having the first file format. The browsing source file is an example of a second file of the first file format. The browsing conversion file is an example of a third file in the second file format.

Regarding the above description, the following items are further disclosed.
(Appendix 1)
An information providing device that transmits a corresponding file in response to a content reference request from a terminal,
A receiving unit that receives a reference request including an identifier of the first file to be referred to and a search keyword;
An extraction unit for extracting a predetermined range including the search keyword of the first file;
A second file of the same first file format as the first file containing the extracted range is created, and the second file is converted to a second file format different from the first file format A file creation unit for creating a third file;
Corresponding to the file format of the terminal, included in the reference request, acquired from another device, or held in the storage unit of the information providing device, and the second file and the third file A processing unit that selects either the second file or the third file according to the file size and transmits the selected file from the transmission unit to the terminal;
An information providing apparatus comprising:
(Appendix 2)
The information providing apparatus according to claim 1, wherein the identifier of the first file and the search keyword are included in header information of the reference request.
(Appendix 3)
The extraction unit selects a search application corresponding to the first file format, and causes the search application to execute a search based on the search keyword.
The information providing apparatus according to appendix 1 or 2, characterized in that:
(Appendix 4)
The file creation unit
When a PDF conversion application is available and the terminal supports the PDF format, it is converted to a third file in the PDF format,
Otherwise, convert to a third file in image format
The information providing apparatus according to any one of appendices 1 to 3, wherein
(Appendix 5)
The processor is
When the file size of the second file is smaller than the file size of the third file and the terminal supports the first file format, the second file is selected for transmission,
Otherwise, select the third file for transmission,
The information providing apparatus according to any one of appendices 1 to 4, wherein
(Appendix 6)
An information providing system comprising a terminal and an information providing apparatus that transmits a corresponding file in response to a content reference request from the terminal,
The information providing apparatus includes:
A receiving unit that receives a reference request including an identifier of the first file to be referred to and a search keyword;
An extraction unit for extracting a predetermined range including the search keyword of the first file;
A second file of the same first file format as the first file containing the extracted range is created, and the second file is converted to a second file format different from the first file format A file creation unit for creating a third file;
Corresponding to the file format of the terminal, included in the reference request, acquired from another device, or held in the storage unit of the information providing device, and the second file and the third file A processing unit that selects either the second file or the third file according to the file size and transmits the selected file from the transmission unit to the terminal;
An information providing system characterized by comprising:
(Appendix 7)
The information providing system according to appendix 6, wherein the identifier of the first file and the search keyword are included in header information of the reference request.
(Appendix 8)
The extraction unit selects a search application corresponding to the first file format, and causes the search application to execute a search based on the search keyword.
The information providing system according to appendix 6 or 7, characterized by the above.
(Appendix 9)
The file creation unit
When a PDF conversion application is available and the terminal supports the PDF format, it is converted to a third file in the PDF format,
Otherwise, convert to a third file in image format
The information providing system according to any one of appendices 6 to 8, characterized in that:
(Appendix 10)
The processor is
When the file size of the second file is smaller than the file size of the third file and the terminal supports the first file format, the second file is selected for transmission,
Otherwise, select the third file for transmission,
The information providing system according to any one of appendices 6 to 9, characterized in that:
(Appendix 11)
To the computer of the information providing device that transmits the corresponding file in response to the content reference request from the terminal,
Receiving a reference request including an identifier of the first file to be referred to and a search keyword;
Extracting a predetermined range including the search keyword of the first file;
A second file of the same first file format as the first file containing the extracted range is created, and the second file is converted to a second file format different from the first file format Create a third file,
Corresponding to the file format of the terminal, included in the reference request, acquired from another device, or held in the storage unit of the information providing device, and the second file and the third file Depending on the file size, either the second file or the third file is selected and transmitted from the transmission unit to the terminal.
An information providing program for executing a process.
(Appendix 12)
The information providing program according to claim 11, wherein the identifier of the first file and the search keyword are included in header information of the reference request.
(Appendix 13)
The process of extracting the predetermined range selects a search application corresponding to the first file format, and causes the search application to execute a search based on the search keyword.
13. The information providing program according to appendix 11 or 12, characterized by the above.
(Appendix 14)
The process of creating the file is as follows:
When a PDF conversion application is available and the terminal supports the PDF format, it is converted to a third file in the PDF format,
Otherwise, convert to a third file in image format
14. The information providing program according to any one of appendices 11 to 13, characterized in that:
(Appendix 15)
The process of selecting the file is as follows:
When the file size of the second file is smaller than the file size of the third file and the terminal supports the first file format, the second file is selected for transmission,
Otherwise, select the third file for transmission,
15. The information providing program according to any one of appendices 11 to 14, characterized in that:
(Appendix 16)
A computer of an information providing apparatus that transmits a corresponding file in response to a content reference request from a terminal,
Receiving a reference request including an identifier of the first file to be referred to and a search keyword;
Extracting a predetermined range including the search keyword of the first file;
A second file of the same first file format as the first file containing the extracted range is created, and the second file is converted to a second file format different from the first file format Create a third file,
Corresponding to the file format of the terminal, included in the reference request, acquired from another device, or held in the storage unit of the information providing device, and the second file and the third file Depending on the file size, either the second file or the third file is selected and transmitted from the transmission unit to the terminal.
An information providing method characterized by executing processing.
(Appendix 17)
The information providing method according to claim 16, wherein the identifier of the first file and the search keyword are included in header information of the reference request.
(Appendix 18)
The process of extracting the predetermined range selects a search application corresponding to the first file format, and causes the search application to execute a search based on the search keyword.
18. The information providing method according to appendix 16 or 17, characterized by the above.
(Appendix 19)
The process of creating the file is as follows:
When a PDF conversion application is available and the terminal supports the PDF format, it is converted to a third file in the PDF format,
Otherwise, convert to a third file in image format
19. The information providing method according to any one of supplementary notes 16 to 18, characterized in that:
(Appendix 20)
The process of selecting the file is as follows:
When the file size of the second file is smaller than the file size of the third file and the terminal supports the first file format, the second file is selected for transmission,
Otherwise, select the third file for transmission,
20. The information providing method according to any one of supplementary notes 16 to 19, characterized by:

DESCRIPTION OF SYMBOLS 1, 1A, 1B User terminal 11 Dedicated application 111 Control part 112 File list display part 113 Communication part 114 Browse file selection part 115 Search type input part 116 Support extension acquisition part 117 http conversion part 118 Browse file display part 119 Processing data 12 OS
2 Network 3 Server 31 Dedicated Application 311 Control Unit 312 Communication Unit 313 Target File Name Acquisition Unit 314 Search Expression Acquisition Unit 315 Support Extension Acquisition Unit 316 Browsing Source File Creation Unit 317 Browsing Conversion File Creation Unit 318 Browsing File Selection Unit 319 Processing data 32 File server 33 Search application 34 Drawing application 35 PDF conversion application

Claims (8)

An information providing device that transmits a corresponding file in response to a content reference request from a terminal,
A receiving unit that receives a reference request including an identifier of the first file to be referred to and a search keyword;
An extraction unit for extracting a predetermined range including the search keyword of the first file;
A second file of the same first file format as the first file containing the extracted range is created, and the second file is converted to a second file format different from the first file format A file creation unit for creating a third file;
Corresponding to the file format of the terminal, included in the reference request, acquired from another device, or held in the storage unit of the information providing device, and the second file and the third file A processing unit that selects either the second file or the third file according to the file size and transmits the selected file from the transmission unit to the terminal;
An information providing apparatus comprising: The information providing apparatus according to claim 1, wherein the identifier of the first file and the search keyword are included in header information of the reference request. The extraction unit selects a search application corresponding to the first file format, and causes the search application to execute a search based on the search keyword.
The information providing apparatus according to claim 1, wherein the information providing apparatus is an information providing apparatus. The file creation unit
When a PDF conversion application is available and the terminal supports the PDF format, it is converted to a third file in the PDF format,
Otherwise, convert to a third file in image format
The information providing apparatus according to any one of claims 1 to 3, wherein the information providing apparatus includes: The processor is
When the file size of the second file is smaller than the file size of the third file and the terminal supports the first file format, the second file is selected for transmission,
Otherwise, select the third file for transmission,
The information providing apparatus according to any one of claims 1 to 4, wherein the information providing apparatus includes: An information providing system comprising a terminal and an information providing apparatus that transmits a corresponding file in response to a content reference request from the terminal,
The information providing apparatus includes:
A receiving unit that receives a reference request including an identifier of the first file to be referred to and a search keyword;
An extraction unit for extracting a predetermined range including the search keyword of the first file;
A second file of the same first file format as the first file containing the extracted range is created, and the second file is converted to a second file format different from the first file format A file creation unit for creating a third file;
Corresponding to the file format of the terminal, included in the reference request, acquired from another device, or held in the storage unit of the information providing device, and the second file and the third file A processing unit that selects either the second file or the third file according to the file size and transmits the selected file from the transmission unit to the terminal;
An information providing system characterized by comprising: To the computer of the information providing device that transmits the corresponding file in response to the content reference request from the terminal,
Receiving a reference request including an identifier of the first file to be referred to and a search keyword;
Extracting a predetermined range including the search keyword of the first file;
A second file of the same first file format as the first file containing the extracted range is created, and the second file is converted to a second file format different from the first file format Create a third file,
Corresponding to the file format of the terminal, included in the reference request, acquired from another device, or held in the storage unit of the information providing device, and the second file and the third file Depending on the file size, either the second file or the third file is selected and transmitted from the transmission unit to the terminal.
An information providing program for executing a process. A computer of an information providing apparatus that transmits a corresponding file in response to a content reference request from a terminal,
Receiving a reference request including an identifier of the first file to be referred to and a search keyword;
Extracting a predetermined range including the search keyword of the first file;
A second file of the same first file format as the first file containing the extracted range is created, and the second file is converted to a second file format different from the first file format Create a third file,
Corresponding to the file format of the terminal, included in the reference request, acquired from another device, or held in the storage unit of the information providing device, and the second file and the third file Depending on the file size, either the second file or the third file is selected and transmitted from the transmission unit to the terminal.
An information providing method characterized by executing processing.