WO2005057413A1 - データ変換装置、データ変換方法、コンピュータをデータ変換装置として機能させるためのプログラム、およびそのプログラムを格納した記録媒体 - Google Patents
データ変換装置、データ変換方法、コンピュータをデータ変換装置として機能させるためのプログラム、およびそのプログラムを格納した記録媒体 Download PDFInfo
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- WO2005057413A1 WO2005057413A1 PCT/JP2004/011038 JP2004011038W WO2005057413A1 WO 2005057413 A1 WO2005057413 A1 WO 2005057413A1 JP 2004011038 W JP2004011038 W JP 2004011038W WO 2005057413 A1 WO2005057413 A1 WO 2005057413A1
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- Prior art keywords
- file
- data
- conversion
- information
- data conversion
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
- G06Q10/107—Computer-aided management of electronic mailing [e-mailing]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/06—Message adaptation to terminal or network requirements
- H04L51/066—Format adaptation, e.g. format conversion or compression
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/07—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail characterised by the inclusion of specific contents
- H04L51/08—Annexed information, e.g. attachments
Definitions
- Data conversion apparatus Data conversion method, program for causing a computer to function as data conversion apparatus, and recording medium storing the program
- the present invention relates to a technology for converting and outputting data according to an information device as an output destination, and in particular, a data conversion apparatus and data conversion method capable of converting into a file represented by a plurality of data formats.
- the present invention relates to a program for causing a computer to function as a data conversion device, and a recording medium storing the program.
- Document data and other electronic data can be referred to in a computer or other information processing device provided with a specific application that conforms to the format of the data.
- the information processing apparatus may store such an application in advance, or may need to install the application in order to execute browsing according to the data. Therefore, for example, when the information processing apparatus outputs document data or the like, the document data may not be browsed depending on the performance of the information processing apparatus as an output destination.
- Patent Document 1 JP-A-4-119457
- Patent Document 2 JP-A-4-119457
- This document processing device is an instruction method for instructing how to format or format color text, color graphics and color images without depending on the display device or the printing device, and the instruction contents of the instruction means.
- the processing means shapes and composes the document based on the instruction.
- the output means outputs this document according to the performance of the output destination. This will make the color text
- a document processing apparatus is provided that outputs a color image or a color image according to an output destination while editing the color image or the color image.
- Patent Document 2 determines the information transmitted by electronic mail as the transmission destination regardless of the amount of data of the electronic mail and the processing capability of the communication terminal of the transmission destination.
- a control method for distributing to a communication terminal is disclosed. This method is a control method of the mail distribution facility which distributes the received e-mail to the communication terminal corresponding to the destination e-mail address of the e-mail.
- an electronic mail distribution facility includes an electronic mail including a part of the received electronic mail and acquired information for acquiring a part other than the part based on condition information indicating distribution conditions of the electronic mail to the communication terminal.
- an electronic mail including a part of the electronic mail received by the mail distribution facility and acquired information for acquiring a part other than the part is included in the condition information as the condition information. Generated based on. This e-mail is delivered to the destination communication terminal.
- Patent Document 1 Japanese Patent Application Laid-Open No. 4-119457
- Patent Document 2 Japanese Patent Application Laid-Open No. 2000-344526
- the present invention has been made to solve the above-mentioned problems, and its object is to display a file having layout information without depending on the file processing function in the information device. It is an object of the present invention to provide a data conversion device capable of converting into a file of a format.
- Another object of the present invention is to provide a data conversion method capable of converting a file having layout information into a file of a displayable format without depending on the file processing function of the information device. It is.
- Another object of the present invention is to convert a file having layout information into a file of a format that can be displayed without depending on the file processing function of the information device, and functions as a data conversion device of a computer. It is to provide a program that can be
- Still another object of the present invention is to function a computer as a data conversion device capable of converting a file having layout information into a file of a displayable format without depending on the file processing function in the information device. It is providing a recording medium storing a program that can be
- a data conversion apparatus is an attribute representing the contents of at least one source file having at least layout information and at least one capability of one or more information devices.
- Storage means for storing data; and conversion means for converting the original file based on the attribute data.
- the conversion means includes a first file conversion means for generating a file represented in a first predetermined data format by conversion processing based on data contained in the original file, and the original file.
- second file conversion means for generating a file represented in a predetermined second data format by the data conversion process.
- the data conversion apparatus further includes an output unit for outputting the file output from the conversion unit to the information device associated with the attribute data.
- the first file conversion means executes conversion processing based on data contained in the original file, and generates a file represented in a predetermined first data format.
- the original file contains at least one of text data, graphics data, and image data.
- Layout information includes, for example, the size of the entire document, and the size and position of text, graphics, images, etc., as well as character color, decoration, font type and other format information.
- the second file conversion means executes conversion processing based on data contained in the original file to generate a file represented in a predetermined second data format.
- the output means outputs the file output from the conversion means to the information device associated with the attribute data. This attribute data represents the content of any of the capabilities of at least one or more information devices.
- the content of the capability represents, for example, the size of the displayable area of the display device included in the information device, the transmittable capacity in the communication line, the size of the memory included in the information device, and other content related to the information processing capability. .
- the information device can properly display the received file without depending on the functions that can be processed. This makes it possible to provide a data conversion apparatus capable of converting a file having layout information into a file of a displayable format without depending on the file processing function of the information device.
- the first file conversion means converts the original file into a file represented by raster data based on the layout information.
- the second file conversion means converts the original file into a file represented by vector data based on the layout information.
- the original file is converted into a file represented by raster data and a file represented by vector data.
- raster data refers to data for expressing an image by, for example, an array of colored dots and other display elements.
- Vector data is a representation of an image by points, lines connecting the points, parameters of surface equation, and other drawing information. Note that in vector data, an image may be represented by the contents of the raster data and the position, size, and direction of the raster data.
- the information device that receives the raster data file can be enlarged or reduced as a bitmap image. And you can view the contents of that file.
- an information device that receives a file of vector data can clearly display the contents of the file by clearly scaling up or down as a vector image.
- the data conversion apparatus further determines, based on the attribute data, which of the first file conversion means and the second file conversion means needs to convert the original file.
- Means for determining The first file conversion means converts the original file into a file represented by raster data based on the data included in the original file, when the determination means determines that the conversion is necessary by the first file conversion means. Convert.
- the second file conversion means is a file in which the original file is represented by vector data based on the data included in the original file, when the determination means determines that the conversion is necessary by the second file conversion means. Convert to
- conversion of the original file is selectively performed, so that it is possible to prevent generation of a file that is not required by the information device. Therefore, for example, the storage area of the file storage device can be efficiently used.
- the data conversion apparatus further includes determination means for determining whether or not the original file needs to be converted based on the attribute data.
- the determination means determines that the original file needs to be converted
- the first file conversion means converts the original file into a file represented by raster data based on the data included in the original file.
- the second file conversion means converts the original file into a file represented by vector data based on the data included in the original file.
- the finnore represented by raster data and the file represented by vector data are generated from the original file, it is possible to use the information device according to the needs of the file. You can output the file.
- the output means includes transmission means for outputting data for reducing and displaying the output file to the information device associated with the attribute data through the communication line.
- the transmitting means displays the file in a reduced size.
- the information device displays a reduced image based on the data.
- the data conversion apparatus further comprises receiving means for receiving a transmission request for the output file via the communication line.
- the transmitting means transmits the file represented by the vector data to the information device associated with the attribute data based on the transmission request.
- the file represented by the vector data is transmitted to the information device, so that the information device can clearly display the image based on the file.
- the transmission request may include at least one of the source of the transmission request, the information for specifying the file transmission destination, and the information for specifying the attribute data used for conversion.
- the information included in the transmission request may be prioritized.
- the data conversion device further includes file storage means for storing the output file, and generation means for generating access data for accessing the data conversion device or the output file. And access data transmitting means for transmitting access data to an information device associated with attribute data through the communication line.
- the output means includes transmission means for outputting data for reducing and displaying the output file to an information device associated with the attribute data through the communication line.
- the transmission means transmits data for reducing and displaying the file to the information device
- the information device reduces the reduced image based on the data. indicate.
- the user of the information device can easily recognize the outline of the converted file with a small amount of communication.
- the output file includes a plurality of files.
- the transmission means outputs data for reducing and displaying each of the plurality of files.
- the data conversion apparatus further comprises receiving means for receiving a transmission request for any of the plurality of files via the communication line.
- the transmitting means transmits the file represented by the vector data to the information device associated with the attribute data based on the transmission request.
- a file represented by vector data is selectively transmitted to the information device. Therefore, the information device can receive only the necessary file, and can clearly display the image based on the file.
- the data conversion apparatus further includes: generation means for generating a message requesting input of authentication information for accessing the output file, based on a predetermined scheme. Files and additional means for adding messages.
- the output means outputs the file to which the message is added to the information device associated with the attribute data.
- the data conversion apparatus further authenticates the access to the output file based on the means for receiving the input information input by the user of the information device associated with the attribute data, and the authentication information and the input information. Authentication means for
- the information device since the information device can be notified of the existence of the converted file while maintaining security, the user of the information device can always be notified of the existence of the update information. it can.
- the data conversion device is connected to the printing device via a communication line.
- the output means includes means for outputting the output file to the printing device.
- the content can be printed on the printing device by converting the original file created without depending on the printing device attribute in accordance with the printing device attribute data.
- the data conversion apparatus further includes a confirmation unit for confirming whether the output file satisfies a predetermined condition.
- the first file conversion means is configured to change the condition for converting the original file when the output file does not satisfy the predetermined condition, and to change the condition based on the changed condition. file And means for converting.
- the original file is converted into raster data if the predetermined conditions are not satisfied.
- the file represented by raster data is converted repeatedly by changing the width or height, changing the compression ratio, etc. until a predetermined condition is satisfied, so it is reliably output to the information device It can generate possible files.
- the condition for converting the original file includes the compression ratio of the original file.
- the predetermined condition is that the size of the output file is less than the predetermined size.
- the condition changing means increases the compression rate if the size of the output file exceeds the predetermined size.
- the data conversion apparatus further comprises receiving means for receiving the original file via the communication line.
- the receiver since the original file transmitted by the sender is converted, the receiver can receive the file of the displayable format without depending on the processing function. In this way, it is possible to increase file utilization in an information communication network to which files having various data formats are attached.
- the data conversion device further includes a determination unit for determining whether or not the original file needs to be converted based on the attribute data. If the determining means determines that the original file does not need to be converted, the converting means outputs the original file without converting it.
- the conversion means converts the original file at predetermined intervals of data in the original file.
- the file generated by the conversion of the original file is also The information device user can easily confirm the contents of the original file because the information is generated for each division (for example, page division).
- a data conversion method prepares in advance an ex-finore having at least layout information, and attribute data representing contents of at least one capability of one or more information devices. And converting the original file based on the attribute data.
- the conversion step includes a step of generating a file expressed in a predetermined first data format by a conversion process based on data contained in the original file, and a conversion process based on data contained in the original file. Generating a file represented in a second predetermined data format.
- the data conversion method further includes the step of outputting the file output from the conversion step to an information device associated with the attribute data.
- the layout information is stored in the file represented by the predetermined first data format and the file represented by the predetermined second data format. It is generated from the original file it has.
- the file is output to the information device associated with the attribute data. In this way, the information device can appropriately display the received file without depending on the function that can be processed. This makes it possible to provide a data conversion method capable of converting a file having layout information into a file of a displayable format without depending on the file processing function of the information device.
- a program causes a computer to function as a data conversion device.
- This program prepares in advance in the computer an original file having at least layout information and attribute data representing the contents of at least one capability of one or more information devices, and based on the attribute data, the original file Execute conversion step and conversion step.
- the conversion step is a conversion process based on data included in the original file to generate a file represented in a first predetermined data format, and a conversion process based on data included in the original file.
- C generating a file represented in the defined second data format.
- this program is output to the computer on the information device associated with the attribute data. Execute the step of outputting the file.
- the above program When the above program is executed by a computer, at least a file represented in a first predetermined data format and a file represented in a second predetermined data format are at least It is generated from an original file having layout information.
- the file is output to the information device associated with the attribute data.
- the information device can properly display the received file without depending on the functions that can be processed.
- the computer can function as a data conversion device capable of converting a file having layout information into a file of a displayable format without depending on the processing function of the information processing device.
- a recording medium is a computer readable recording medium storing a program that causes a computer to function as a data conversion device.
- the computer can display the file having the layout information without depending on the processing function of the file in the information device.
- Power conversion equipment that can be converted to
- the file having the layout information is converted according to the portable communication terminal, the printing device, and other information devices. You can view the contents of the file without using a special application to view the data.
- the file having the layout information is converted according to the portable communication terminal, the printing apparatus, and other information devices. You can view the contents of the file without using a special application to view the data.
- the computer can convert a file having layout information into a file of a format that can be displayed without depending on the file processing function of the information device. Act as. Therefore, the user who receives the file converted by this computer uses a special application. You can browse the contents of the file for later use.
- the recording medium of the present invention as a data conversion device capable of converting a file having layout information into a file of a format that can be displayed without depending on the file processing function of the information device.
- the computer can function.
- FIG. 1 schematically shows a communication system in which a data conversion apparatus according to a first embodiment of the present invention is used.
- FIG. 2 A diagram conceptually showing the structure of data stored in a registrant DB of the data conversion apparatus shown in FIG.
- FIG. 3 is a diagram conceptually showing the structure of communication information stored in the mail DB of the data conversion device shown in FIG. 1.
- FIG. 3 is a diagram conceptually showing the structure of communication information stored in the mail DB of the data conversion device shown in FIG. 1.
- FIG. 4 is a conceptual diagram showing a data structure in a document DB of the data conversion device shown in FIG.
- FIG. 5A is another conceptual diagram showing the data structure in the document DB of the data conversion device shown in FIG. 1.
- FIG. 5B is another conceptual diagram showing the data structure in the document DB of the data conversion device shown in FIG. 1.
- FIG. 5C is another conceptual diagram showing the data structure in the document DB of the data conversion device shown in FIG. 1.
- FIG. 6 is a block diagram showing a hardware configuration of a computer system that implements the data conversion device shown in FIG. 1.
- FIG. 7 is a diagram showing the transition of the screen displayed on the monitor of the mobile communication terminal connected to the data conversion device shown in FIG. 1.
- FIG. 8 is a schematic diagram showing the data structure of an electronic mail communicated via the data conversion device shown in FIG. 1.
- FIG. 9 A diagram conceptually showing a part of a header portion of a binary sequence of JPEG image data converted by the data conversion device shown in FIG.
- FIG. 10 Processing executed by control unit of data conversion apparatus according to the first embodiment of the present invention Is a flowchart showing the procedure of
- FIG. 11 is a flowchart showing a procedure of another process performed by the control unit of the data conversion apparatus according to the first embodiment of the present invention.
- FIG. 12 is a flowchart showing a procedure of another process performed by the control unit of the data conversion system according to the first embodiment of the present invention.
- FIG. 13 is a flowchart showing a procedure of another process performed by the control unit of the data conversion apparatus according to the first embodiment of the present invention.
- FIG. 14 is a flowchart showing a procedure of processing performed by a control unit of the data conversion apparatus according to the second embodiment of the present invention.
- FIG. 15 is a diagram schematically representing a communication system in which a data conversion apparatus according to a third embodiment of the present invention is used.
- FIG. 16 is a flowchart showing a procedure of processing performed by a control unit of the data conversion apparatus according to the third embodiment of the present invention.
- [0056] 100, 1500 data conversion device, 110, 1510 control unit, 112 mail reception agent, 114 mail transmission agent, 116 WEB server & WEB mail agent, 1 18 document conversion engine, 120 registrant DB, 130 maine DB, 140 Document DB, 170 mobile communication terminals, 172 monitors, 180 information communication terminals, 182, 184 mail Sano, 186 GW Sano, 188, 192, 194, 196, 198 network, 600 m.
- User system 610 CPU, 620 RAM, 630 fixed disk, 640 FD drive, 642 FD, 650 CD-ROM drive, 652 CD-ROM.
- FIG. 1 schematically represents a communication system in which the data conversion device 100 is used. It is a figure.
- the data conversion device 100 includes a control unit 110, a registrant DB (Database) 120, a main DB 130, and a document DB 140.
- the control unit 110 includes a mail reception agent 112, a mail transmission agent 114, a WEB server & WEB mail agent 116, and a document conversion engine 118.
- the data conversion apparatus 100 is connected to the mail server 182 via the network 192.
- the data converter 100 is similarly connected to the GW (Gateway) server 186 via the networks 194 and 196.
- the mail server 182 is connected to the information communication terminal 180 via the network 188.
- the information communication terminal 180 includes, for example, a PC (Personal Computer), but is not limited to this, and may be an information processing apparatus having a communication function.
- the GW server 186 is connected to the mobile communication terminal 170 via the network 198.
- the mobile communication terminal 170 includes, for example, a mobile phone, a PDA (Personal Digital Assistant), and the like.
- Each network may be a general public communication line or a dedicated number or line used in a specific organization such as a LAN (Local Area Network).
- the user of the information communication terminal 180 creates an e-mail, attaches a file having layout information such as a document file to the e-mail,
- a file having layout information such as a document file
- the electronic mail is received by the data conversion apparatus 100 via the mail server 182.
- the layout information includes format information such as the color and decoration of characters, and the type of font which are not divided only by the size of the entire document or the size and position of each part.
- the document file including the layout information includes, for example, a document created by an editor device or the like, a table created by a processing device such as a PC having a spreadsheet function, and the like.
- the mail receiving agent 112 of the control unit 110 when the mail receiving agent 112 of the control unit 110 receives the electronic mail via the communication IF (Interface) (not shown), the mail receiving agent 112 sends the mail DB 130 to the mail DB 130. Stores the mail text. The mail receiving agent 112 further stores the attached file in the document DB 140.
- Document conversion engine 118 is based on the attribute information stored in registrant DB 120. Convert the attached file into a predetermined data format. Files generated by the document conversion engine 118 are stored in the document DB 140 again.
- Mail transmission agent 114 generates information notifying that an electronic mail has been transmitted from information communication terminal 180 to portable communication terminal 170 based on a predetermined format.
- the mail sending agent 114 sends this information to the mail server 184 as an email addressed to "AA @ test. Net".
- the menu server 184 transfers this mail to the mobile communication terminal 170.
- the format defined in advance may include the sender's e-mail address or e-mail text, and if there is data into which the attached file has been converted, the URL for accessing the converted data (Uniform Resource Locators) may be included.
- the converted file stored in the document DB 140 can be read out and browsed.
- the attribute information of the mobile communication terminal 170 may be updated to the registrant DB 120 if necessary.
- FIG. 2 is a diagram conceptually showing the structure of data stored in registrant DB 120.
- the registrant DB 120 is, for example, a hard disk or other relatively large-capacity storage device.
- the user identification (Identification) is stored in field F210.
- the password of the user of each mobile communication terminal is stored in Fino Redo F 220.
- the serial ID of the portable communication terminal used by each user is stored in field F230.
- the serial ID is, for example, a serial number of the mobile communication terminal, but is not limited thereto.
- the terminal main address is stored in field F 240. Such information may be registered in advance at the time of use registration of the portable communication terminal to access the data conversion device 100. Alternatively, as described above, when the user tries to access by receiving the incoming e-mail to the mobile communication terminal, the information may be input to the user each time.
- the format of this terminal e-mail address may be an address other than an e-mail address, for example, an IP (Internet Protocol) address.
- IP Internet Protocol
- the address of the printer having the printerOOlJ ID is an address in the electronic mail format, it may be a network address defined in the network environment in which this printer is used.
- the destination e-mail address is stored in field F 250.
- This address is the address designated by the sender of the e-mail as the destination of the e-mail. Again referring to FIG. 1, this address corresponds to, for example, the address “ ⁇ @abne.jp” possessed by the mail server 182 when the user of the information communication terminal 180 sends an e-mail.
- the form of the data structure in the registrant DB 120 is not limited to that shown in FIG.
- FIG. 3 is a view conceptually showing the structure of communication information stored in the mail DB 130 of the data conversion apparatus 100.
- This communication information includes, for example, electronic mail.
- the recipient's email address is stored in field F310.
- the e-mail sender's address is stored in field F320.
- Data representing the e-mail transmission date and time is stored in field F330.
- Data representing the email subject is stored in Fino Redo F340.
- the subject refers to, for example, heading information attached to the front of the text of the email.
- the body of the email is stored in field F350.
- the data in this text is less than a predetermined capacity (eg, several hundred kilobytes).
- Data representing the file storage destination is stored in Fino Redo F360. This storage destination contains the address where the data of the file attached to the e-mail is stored.
- communication information to which no file is attached data representing that, for example, “NULL” is stored.
- the data structure shown in FIG. 3 is merely conceptual, and the aspect of the data structure is not limited to this. Also, for example, instead of the text data of the e-mail stored in the field F350, address information as stored in the field F360 may be stored in the same manner. In this case, by storing the reference destination data in another area, the mail text data can be easily identified and referenced.
- FIG. 4 in document DB 140 of data conversion device 100 according to the present embodiment.
- the data structure in FIG. 4 is a diagram showing an aspect in which a file attached to an electronic mail is stored.
- Data areas D410 to D440 indicate areas where files attached to e-mail are stored.
- FIG. 5A is a diagram conceptually showing an aspect of data storage before data conversion regarding the file “material 1. DOC” attached to the e-mail.
- FIG. 5B and FIG. 5C are diagrams conceptually showing an aspect of storage of data after data conversion regarding the file "Document 1 ⁇ DOC”.
- the attached file “Document 1. D ⁇ C” is document data covering, for example, 10 pages
- 10 pages of data are stored in the document DB 140.
- FIG. 5A does not show that it is essential that a file having a plurality of pages is divided into pages beforehand before conversion processing to be described later.
- the attached file may be divided and recorded for each page in advance before conversion processing to be described later, or may be recorded as one file which is to be divided.
- this page may be, for example, a page set in advance for each document editing program executed by data conversion device 100, and may be preset in data conversion device 100 without depending on such a program. It may be another page.
- the data conversion apparatus 100 may have a plurality of data conversion functions in advance. In this case, since a file is generated for each conversion function, for example, as shown in FIG. 5C, a file having a data format different from that of the file shown in FIG. 5B is generated.
- a mode of converting a file for example, a mode of converting to a file represented based on bitmap or other raster data, or a mode of converting to a file represented based on vector data, etc. included.
- the aspect of conversion based on raster data includes, for example, the JPEG (Joint Photographic Experts Group) method.
- aspects of conversion based on vector data include, for example, SVG (Scalable Vector Graphics) method.
- the conversion mode of the file is not limited to the above mode, but may be a conversion mode capable of generating a file into which an outline image is divided, a file containing a geometric graphic element or the like, or more specifically, If it is a conversion mode that can generate a file in which information can be clearly recognized even when enlarged.
- FIG. 6 is a block diagram showing a hardware configuration of computer system 600.
- this computer system 600 includes a central processing unit (CPU) 610, a random access memory (RAM) 620, a fixed disk 630, and a flexible disk (FD) (digital processing unit) 610 interconnected by data buses.
- Disk drive device 640 a compact disk-read only memory (CD-ROM) drive device 650, and a communication IF 660.
- the FD 642 is attached to the FD drive 640.
- a CD-ROM 652 is attached to the CD-ROM drive 650.
- the CPU 610 functions as the control unit 110 in the data conversion device 100 shown in FIG.
- the fixed disk 630 functions as a registrant DB 120, a main DB 130 or a document DB 140 in the data conversion device 100. Therefore, the fixed disk 630 For example, it may be configured as one hard disk drive, or may be configured as a hard disk drive divided by a plurality of hard disk drives or a plurality of partitions. Also, instead of the computer system that incorporates the fixed disk 630 in this manner, it may be a server device such as a DB server, a server or the like connected externally as a data storage device for storing data.
- CPU 610 When a program for which processing has been set in advance is executed, CPU 610 performs processing as the agent reception agent 112 of the control unit 110, the mail transmission agent 114, the web server and web database 116, and the document conversion engine 118. Run. The procedure and specific contents of this process will be described later.
- the processing in computer system 600 for realizing data conversion device 100 is realized by each hardware and software executed by CPU 610.
- Such software may be stored in advance in the RAM 620 or the fixed disk 630.
- the data may be stored and distributed in an FD 642, a CD-ROM 652 or other recording medium, read from the recording medium by the FD drive 640 or the CD-ROM drive 650, and stored in the fixed disk 630.
- the software is also read by fixed disk 630 and executed by CPU 610.
- the hardware itself of the computer system 600 shown in FIG. 6 is general. Therefore, it can be said that the most essential part of the present invention is software recorded in the RAM 620, the fixed disk 630, the FD 642, the CD-ROM 652 and other recording media.
- the operation of each piece of hardware of this computer system 600 is well known, so the description thereof will not be repeated here.
- FIG. 7 is a diagram showing the transition of the screen displayed on the monitor 172 of the mobile communication terminal 170. As shown in FIG.
- the transfer mail message generated by data conversion device 100 is transmitted to portable communication terminal 170. Will be sent.
- This message is displayed on monitor 172 (screen (A)).
- a screen for authenticating the user is displayed on the monitor according to the data generated by data conversion device 100 based on the predetermined criteria. Displayed on the screen 172 (screen (B)). This screen displays a message prompting the user to enter a password and an area for entering a password.
- the user When the user inputs a password registered in advance and depresses the display unit of login, if the password is authenticated as a valid password, the user of mobile communication terminal 170 (for example, Mr. ⁇ 's mail list is displayed on the monitor 172 (screen (C)).
- the display of the list on the monitor 172 in the screen (C) is performed based on the data stored in the mail DB 130 of the data conversion apparatus 100 as shown in FIG. 3, for example.
- each page of the attached file is displayed on the monitor 172 as a small image (screen (E)).
- the display of the image is performed based on the data of the image stored in the document DB 140 of the data conversion apparatus 100.
- This image is an image generated by associating each file after data conversion.
- the display of the selected file is enlarged and displayed within the frame of the monitor 172 (screen (F)).
- This display is performed, for example, based on data compressed according to a predetermined standard and represented in the fcJPEG format or the SVG format.
- the selected file is the document DB 140 of the data conversion apparatus 100. And is transmitted to the mobile communication terminal 170.
- the mobile communication terminal 170 can receive the file without any problem. Can.
- the received file is displayed on the monitor 172, for example, together with the URL (screen (G)).
- FIG. 8 conceptually shows the data structure of an electronic mail.
- data string 810 (ie, "multipart / mixed") means that a plurality of parts are sent together.
- the data string 820 ie, "boundary" means that it is a string representing the body of the e-mail and the delimiting of attached data.
- Data string 830 contains the same string as data string 820, respectively. This data string 830 thus represents that data is separated at this portion.
- Data column 840 (ie, "text / plain”) means that it is just text.
- Data] 1J850 (ie, “image / jpeg”) means that the image is an image in JPEG format.
- Data column 860 (ie, "sample. Jpg") represents a specific file name. In this case, regarding the plurality of data strings 860, data to be actually read ⁇ ⁇ ⁇ ⁇ IJ 860 differs depending on the application that reads the file.
- the data ⁇ IJ 870 (ie, “base64”) means that the binary is encoded at base64.
- Data column 880 (ie, "attachment") indicates that the file is simply attached.
- Data sequence 890 represents a binary sequence of JPEG image data. This data is encoded by base64 as described above.
- the e-mail shown in FIG. 8 includes a data string representing attribute data necessary for conversion processing described later. Therefore, according to the conversion process, the data conversion apparatus 100 determines the name, type, encoding mode, data of the encoded file, encoding of the file attached to the e-mail, according to the conversion process. Aspects and other attribute data can be used.
- FIG. 9 conceptually shows a part of the header portion of the binary string of data.
- the binary string starts with "FFD8". Therefore, in this case, whether the attached file is a file of SJPEG format or not For example, it may be checked whether or not the first two bytes of data are "0xFF" and "0xD8". Alternatively, if the attached file is compressed, and if the file restoration process (re, unzipped process) is executed, it is determined whether the data of the file has no problem as JPEG format data. You may do it.
- FIG. 10 is a flowchart showing the procedure of the process executed by the control unit 110 of the data conversion apparatus 100.
- step S 1002 mail reception agent 112 of control unit 110 receives the mail transmitted from information communication terminal 180.
- control unit 110 determines whether or not a file is attached to the received mail. This determination is made by referring to the header information of the received e-mail (for example, data strings 860 and 880 in FIG. 8). If a file is attached (YES at step S1004), the process proceeds to step S1006. If not (NO at step S1004), the process proceeds to step S1030.
- control unit 110 determines the attribute of the device at the transmission destination (transfer destination) of the electronic mail. This determination is performed, for example, based on data registered in advance in the registrant DB 120. Alternatively, the attribute of the device may be determined based on information (for example, a transmission destination address) included in the e-mail.
- control unit 110 determines whether or not data conversion of the file attached to the mail is necessary. This determination is made, for example, based on the attribute of the device determined in step S1006 or the attribute of the attached file. If it is determined that data conversion of the file is necessary (YES at step S1008), the process proceeds to step S1100. If not (NO at step S1008), the process is transferred to step S1020.
- control unit 110 executes conversion processing described later.
- the file attached to the received mail is converted into a file having a predetermined data format, and is stored in the document DB 140.
- control unit 110 stores the storage position of the file generated by the conversion process. Create an incoming message that contains location information (for example, a URL).
- mail transmission agent 114 of control unit 110 transmits an incoming message to the transmission destination device.
- control unit 110 stores the file attached to the received mail in document DB 140 before executing the data conversion of the file. That is, this process can be regarded as no file conversion process.
- mail transmission agent 114 of control unit 110 is an information communication terminal.
- the mail received from 180 is transmitted to the mobile communication terminal 170 of the transmission destination.
- step S1030 mail transmission agent 114 of control unit 110 transfers the mail as it is to the designated transmission destination (for example, portable communication terminal 170).
- FIG. 11 is a flow chart showing the procedure of conversion processing executed by the control unit 110 of the data conversion apparatus 100.
- control unit 110 selects the file analysis function. This selection is made, for example, with reference to the attribute of the attached file (whether or not the file is a document file, or whether or not it is a file storing spreadsheet data).
- control unit 110 analyzes the file attached to the received e-mail based on the selected file analysis function.
- the data of the attached file is configured to data of one predetermined page.
- control unit 110 determines whether or not page breaks have been detected in the file. If a page break is detected (YES at step S1106), the process proceeds to step S1108. If not (NO at step S1106), the process returns to step S1104.
- control unit 110 executes a predetermined first conversion process.
- This first conversion process is, for example, a conversion for which an outline image can be seen, and a conversion with a high compression rate is preferred.
- This process includes, for example, a process of converting the original file into a file expressed in JPEG format. This process may further include the step of executing error processing. For example, to meet the preset conditions If the file can not be compressed, the user may be notified as unconvertible.
- control unit 110 executes a predetermined second conversion process.
- step S1108 it is preferable that the information in the image be clearly displayed even when the image is enlarged and displayed, for example.
- step S1108 it may further include the step of executing error processing.
- This processing includes conversion processing based on, for example, SVG format and other vector data.
- SVG format a file having a data format generated by such processing, when the display of information such as an image of the file is expanded, the information is expressed by vector data, and thus the information is displayed clearly.
- control unit 110 determines whether or not the end of the file has been detected. If the end of the file is detected (YES at step S1112), the process proceeds to step S1114. If not (NO at step S1112), the process returns to step S1104.
- step S 1114 document conversion engine 118 of control unit 110 stores the file generated by the first conversion process in document DB 140.
- step S 1116 document conversion engine 118 of control unit 110 stores the file generated by the second conversion process in document DB 140.
- FIG. 12 is a flow chart showing a procedure of processing executed when the control unit 110 of the data conversion apparatus 100 receives an access from a device to which a mail is sent.
- control unit 110 detects the access of mobile communication terminal 170 which has received the incoming message. For example, when the user of the mobile communication terminal 170 executes connection processing to the URL and other position data displayed in the incoming message, predetermined information is transmitted from the mobile communication terminal 170. When the data converter 100 receives this information, access by the mobile communication terminal 170 is detected.
- control unit 110 transmits a password input request to the device.
- control unit 110 detects an input of a password.
- control unit 110 determines whether or not the authentication of the device has succeeded. This The determination is made, for example, by comparing a predetermined stored password with the password detected in step S1206. If it is determined that the device authentication is successful (YES in step S1208), the process proceeds to step S1210. If not (NO at step S1208), the process returns to step S1204.
- control unit 110 transmits the e-mail list data to the device.
- the mobile communication terminal 170 receives this data, its monitor 172 displays a list (for example, the screen (C) in FIG. 7).
- control unit 110 receives the information for identifying the selected mail from the device. This information is transmitted when the user of the mobile communication terminal 170 executes a process of selecting a specific mail from the list.
- the mode of such transmission is not particularly limited as long as the selection information is transmitted in response to the selection in the list.
- control unit 110 transmits the reduced image data of the file converted for the selected mail.
- control unit 110 determines whether or not access to image data has been detected. If access to image data is detected (YES at S1216), the process proceeds to step S1218. If not (NO at step S1216), the process proceeds to step S1220.
- control unit 110 transmits data for enlarged display of the image to the device.
- This data may be, for example, data for displaying an image in SVG format, or other data format.
- control unit 110 determines whether a request for transmission of image data has been detected. If a request for transmitting image data is detected (YES in step S 1220), the process proceeds to step S 1300. If not (NO at step S 1220), the process proceeds to step S 1230.
- control unit 110 executes a predetermined process.
- This process includes a process of transmitting image data to the portable communication terminal 170 without executing a specific process.
- control unit 110 executes a page combining process described later.
- a file is generated in which the specific page selected by the device user is merged, and the file is sent to the device.
- the term “merge” refers to the process of combining selected pages to generate one file. In this process, for example, they are combined in the ascending order of the selected page numbers.
- the mode of this merge process is not particularly limited.
- FIG. 13 is a flowchart showing the procedure of the page combining process performed by the control unit 110 of the data conversion apparatus 100.
- control unit 110 determines the attribute of the transmission destination device.
- control unit 110 obtains the transmittable data amount for the device.
- This amount of data may not be stored in advance, for example, a force which is data stored in advance in the registrant DB 120.
- the transmittable data amount may be obtained by executing the process of obtaining the data amount at the start of the process.
- control unit 110 initializes page counter CNT.
- control unit 110 acquires the data amount of the page indicated by counter CNT.
- step S 1310 it is determined whether the acquired data amount is larger than the transmittable data amount. If the acquired data amount is larger than the transmittable data amount (YES in step S1310), the process proceeds to step S1320. If not (NO in step S1310), the process proceeds to step S1312.
- control unit 110 executes page merge processing.
- merge processing refers to processing of combining data of selected pages based on a preset procedure to generate one file, as described above.
- control unit 110 increments the value of counter CNT by one.
- control unit 110 determines whether value value S “1” of counter CNT is satisfied or not. If the value strength S “l” of the counter CNT is satisfied (YES in step S1320), the process proceeds to step S1322. If not (NO in step S 1320), the process proceeds to step S 1324. At step S1322, control unit 110 transmits an error message to the device.
- This error message is, for example, a predetermined message, which includes, for example, a message notifying that composition of a page has failed.
- control unit 110 transmits the merged file to the device.
- step S1002 When data converter 100 receives a mail (step S1002), if a file is attached (YES at step S1004), the attribute of the device to which the mail is to be sent is determined (step S1006). If data conversion device 100 determines that data conversion is necessary (YES in step S1008), data conversion device 100 starts conversion processing (step S1100).
- the data conversion apparatus 100 analyzes the file using the file analysis function selected based on the attribute data of the file attached to the mail (step S1104).
- the first conversion process for example, conversion to a file represented by a JPEG data format
- the second conversion process for example, for example
- the conversion process to a file represented by the SVG format is performed (steps S1108 and S1110).
- each file generated by the conversion is wrapped in the document DB 140 (steps SI 114 and SI 116).
- step S1012 When data conversion apparatus 100 generates an incoming message including position data of a file generated by conversion processing (step S1012), the message is transmitted to portable communication terminal 170 (step S1014).
- the user of the mobile communication terminal 170 refers to the incoming message and performs a predetermined access operation.
- the data conversion device 100 detects the access (step S1202). If the user performs password input processing and authentication for access is successful (YES in step S1208), data conversion apparatus 100 transmits a list of mails to portable communication terminal 170. Send the data to be displayed (step S 1210).
- step S 1212 When data conversion apparatus 100 receives information for selecting a specific mail from portable communication terminal 170 (step S 1212), the data obtained by reducing the image of the contents of the file attached to the mail is reduced. It transmits to the portable communication terminal 170 (step S1214). When the user of portable communication terminal 170 requests transmission of specific image data (No at step S1216, YES at step S1220), data conversion apparatus 100 executes page composition processing for specific image data. (Step S 1300).
- Data conversion apparatus 100 acquires the transmittable data amount to portable communication terminal 170 (step S 1304), and while the total data amount of the selected page does not exceed the transmittable data amount (step S 1304) In step S 1310, the page merge processing is executed (NO in step S 1312). If the total data amount exceeds the transmittable data amount (YES in step S1310), if the selected page is merged (NO in step S1320), data conversion apparatus 100 The file generated by the merge process is transmitted to the mobile communication terminal 170 (step S 1324). Thereby, the mobile communication terminal 170 can receive the file including the page desired to be browsed.
- the data format of the file attached to the e-mail according to the attribute of the information device to which the e-mail is to be sent. are stored in the storage device.
- the format of this file is a data format that does not depend on the application program that the information device has.
- the data conversion apparatus 100 transmits the image of the converted file to the information device which is the transmission destination of the electronic mail.
- the information device is represented by a data format that can not be referenced by its own application.
- the information device can refer to the contents of the file as an image.
- the present invention provides a data conversion device capable of converting document data into viewable data without depending on the display mode of the image in the information device. It is possible to offer S.
- the data conversion apparatus according to the present embodiment differs from the first embodiment in having a function of selectively executing file conversion processing among a plurality of processes.
- the data conversion apparatus according to the present embodiment has the same hardware configuration as the data conversion apparatus 100 according to the first embodiment described above. Their functions are also the same. Therefore, the explanation about them is not repeated here.
- FIG. 14 is a flowchart showing the procedure of the selective conversion process performed by the control unit 110 of the data conversion apparatus 100.
- the same step number is attached to the same process as the process in the first embodiment described above, and the description thereof will not be repeated. Also, the process shown in FIG. 14 is executed instead of step S1100 in the main process shown in FIG.
- control unit 110 determines whether or not the file's attribute data strength device and transmission path condition are satisfied.
- the transmission path conditions include, for example, the amount of data that can be transmitted, but may be other conditions. If the file attribute data satisfies these conditions (YES in step S1410), the process proceeds to step S1110. If not (NO in step S1410), the process proceeds to step S1108.
- Step S1110 When data conversion device 100 determines that the attribute of the file attached to the mail satisfies the transmission destination device and the conditions of the transmission path (YES in step S 1410), the second conversion process is performed. (Step S1110).
- file conversion processing is performed by using, for example, whether or not the conditions of the device and the transmission path are satisfied. Can be selectively implemented. As a result, a file can be generated according to the conditions of the information device or transmission path.
- the third embodiment of the present invention will be described below.
- the data conversion apparatus according to the present embodiment differs from each of the above-described embodiments in that it has a function of converting a file stored in advance inside the apparatus itself.
- FIG. 15 schematically shows a communication system in which data converter 1500 is used.
- data converter 1500 includes control unit 1510 and registrant DB (not shown).
- the control unit 1510 includes a document agent 1512, a mail transmission agent 114, a WEB server & WEB mail agent 116, and a document conversion engine 118.
- Data conversion device 1500 differs from the configuration of data conversion device 100 shown in FIG. 1 in that it has document agent 1512.
- the other hardware configuration is the same as the above-described embodiment, and therefore will not be repeated here.
- the document agent 1512 exchanges predetermined information (eg, user information of the mobile communication terminal 170, attributes of the terminal, transmission capacity of the communication line, etc.) with the WEB server & WEB mail agent 116. Based on the information, the document agent 1512 outputs a conversion command of a specific file, and causes the document conversion engine 118 to convert the file and store it in the document DB 140.
- predetermined information eg, user information of the mobile communication terminal 170, attributes of the terminal, transmission capacity of the communication line, etc.
- the mail transmission agent 114 outputs the converted file to the mail server 184 and further transmits it to the mobile communication terminal 170 via the network 198.
- FIG. 16 is a flowchart showing the procedure of processing executed by the control unit 1510 of the data conversion device 1500. Note that the same step number is assigned to the same process as the process in the above-described embodiment, and the description thereof will not be repeated here.
- control unit 1510 reads the document DB 140 command file, etc. . Reading of this file is performed, for example, when a new file is stored in the file DB 140 or when a preset time (for example, a predetermined date and time every week, etc.) is reached, but the reading is triggered by Not limited to the above case, other conditions may be met.
- a preset time for example, a predetermined date and time every week, etc.
- step S1504 the control unit 1510 determines the attribute of the device of the transmission destination of the file.
- the data that is the basis of this determination is, for example, data stored in advance in the registrant DB 120, but may be other data.
- the device attributes can be determined based on the data stored in each file. .
- control unit 1510 determines whether or not data conversion of the read file is necessary. This determination is made, for example, based on whether or not the attribute of the read file matches the attribute of the destination device. For example, if the destination device can read the file stored in the document DB 140 in the same format, it is determined that data conversion is unnecessary. If it is determined that file data conversion is required (YES at step S1506), the process proceeds to step S1100. If not (NO at step S1506), the process proceeds to step S1510.
- control unit 1510 transmits the read file to the device without conversion without converting the data.
- control unit 1510 creates a message including information on the storage position of the file generated by the conversion process.
- This information includes, for example, a URL or, in the case of an in-house LAN, predetermined address information etc. defined in that LAN.
- the message may be a character graphic that is text-displayed, such as a graphic, an image or the like.
- control unit 1510 transmits the message to the transmission destination device.
- the transmission destination device is, for example, the mobile communication terminal 170 or another communication terminal, but is not limited to this. For example, it may be a printing device.
- the data conversion apparatus 1500 reads the file from the document DB 140 (step S1502), and determines the attribute of the destination device (step S1504). If data conversion of the file is required (YES in step S1506), predetermined conversion processing is executed (step S1100).
- the file stored in advance in document DB 140 is read out, and the data of the file is read according to the attribute of the transmission destination device.
- Convert format In this way, for example, when transmitting a common file to a plurality of information devices having different attributes, it is not necessary to create and save a file corresponding to each attribute in advance.
- the data storage area of the storage device such as the document DB 140 can be efficiently used, and each file can be shared, so information sharing can be promoted.
- the data conversion device 1500 is connected by setting the timing of reading the file, for example, at a specific time, when a newly created file is saved, or when the file has been updated. Since the users in charge can appropriately know the updated information, sharing of the updated information can also be promoted.
- the fourth embodiment of the present invention will be described below.
- the data conversion apparatus according to the present embodiment differs from the data conversion apparatus according to the third embodiment in that the data conversion apparatus according to the present embodiment has a function of selectively executing file conversion processing.
- the hardware configuration of the data conversion apparatus according to the present embodiment is the same as that of the third embodiment. Therefore, the description is not repeated here.
- the control structure of the data conversion apparatus according to the present embodiment includes the selective conversion process shown in FIG. 14 instead of the conversion process of step S1100 in the flowchart shown in FIG. Since those processes are the same as the processes described above, the description thereof will not be repeated here.
- a data conversion apparatus having such a control structure is capable of processing a file having layout information.
- the storage area of the document DB 140 and other storage devices can be effectively used because files not required by each information device are not generated. Also, since it is not necessary to manage such files, the efficiency can be improved from the viewpoint of reduction of management tasks.
- the present invention is applicable to a relay apparatus configuring an information communication network, for example, a data communication apparatus configuring a mobile communication network.
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Abstract
Description
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- 2004-08-02 CN CNA200480036727XA patent/CN1890649A/zh active Pending
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Also Published As
Publication number | Publication date |
---|---|
EP1710705A4 (en) | 2008-10-29 |
EP1710705A1 (en) | 2006-10-11 |
US7535477B2 (en) | 2009-05-19 |
JP2005174109A (ja) | 2005-06-30 |
US20070097394A1 (en) | 2007-05-03 |
CN1890649A (zh) | 2007-01-03 |
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