JP2006318308A - Electronic document distribution server and electronic document distribution system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic document distribution system 10 displaying the electronic document starting from the page which is previously displayed to a terminal apparatus 20 even when the terminal apparatus 20 on which the electronic document is displayed by a user is different. <P>SOLUTION: An electronic document distribution server 30 acquires a page corresponding to latest access information from an electronic document storing part 304 and transmits the page to the terminal apparatus 20 corresponding to a user ID when the latest access information for the corresponding user ID exists within a latest access information storing part 302 when the user ID, terminal type and an electronic document access request are received from the terminal apparatus 20 used by the user. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for distributing and displaying an electronic document composed of electronic data on a terminal.

  With the recent development of information communication technology, various electronic documents stored in a server connected to the Internet can be browsed via a terminal device having a communication interface. In addition to stationary terminals such as PCs (Personal Computers), in recent years, portable terminals such as mobile phones and PDAs (Personal Digital Assistants) are also available as terminal devices. It is possible to browse electronic documents.

  In addition, by identifying the user to be browsed by the user ID and providing the electronic document to the user who has entered the permitted user ID, even if the terminal device to be used is different, the desired electronic document can be viewed Techniques that can be known are known. Thereby, for example, an electronic document viewed at home can be viewed on a terminal device installed in an Internet cafe or the like.

  Some electronic documents such as moving images and electronic books take a relatively long time to browse. In such an electronic document, when browsing is resumed after the browsing is interrupted, the user searches for a page or scene that has not been browsed until the previous time and resumes browsing. For that purpose, the user must memorize the information browsed last time, and it may take time to resume browsing from the last time.

  In addition, when information on the page or scene that was browsed last time is stored in the terminal device and browsing is resumed, browsing can be resumed from a page or scene that has not been browsed based on the stored information There is. However, even in such a case, if the terminal device used for browsing is different, even if the electronic document can be acquired again, the information on the pages and scenes browsed until the previous time cannot be acquired.

  Furthermore, electronic documents such as moving images and electronic books that could be displayed on a terminal device such as a PC, in a portable terminal device such as a PDA, due to restrictions on the capacity of the installed memory and the size of the display screen, etc. It may not be possible to display. Therefore, the user may not be able to resume browsing with a PDA or the like after browsing an electronic document such as a moving image or an electronic book with a PC or the like.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to display an electronic document displayed last time even when the terminal device used is different when the user resumes browsing the electronic document. An object of the present invention is to provide an electronic document distribution server and an electronic document distribution system that can be displayed on a terminal device from the previous continuation.

  In order to solve the above-described problem, the electronic document distribution server of the present invention relates, in an electronic document composed of a plurality of pages, information related to a page displayed last on the first terminal device to a user identifier. When the electronic document viewing request is received from the second terminal device together with the user identifier, if the received user identifier is stored in the server, the information associated with the user identifier is The corresponding page is distributed to the second terminal device.

  The first aspect of the present invention is, for example, an electronic document distribution server that distributes an electronic document composed of a plurality of pages to a terminal device in units of pages, and sends an electronic document browsing request from the terminal device. The browsing request receiving means that receives the identifier together with the user's identifier, and the user of the first terminal device, when the instruction to end the browsing of the electronic document is received from the first terminal device, When the electronic document browsing request is received from the second terminal device and the storage unit that stores the identifier in association with the identifier, the storage unit stores the identifier of the user related to the request, and is associated Distribution means for delivering the page to the second terminal device.

The second aspect of the present invention is an electronic document distribution server that distributes an electronic document composed of a plurality of pages to a terminal device in units of pages, for example, and is at least a part of an original page constituting the electronic document An alternative page storage unit that stores one or a plurality of alternative pages different from the original page, a browsing request reception unit that receives an electronic document browsing request from the terminal device together with an identifier of the user of the terminal device and an attribute of the terminal device When an instruction to end browsing of an electronic document is received from one terminal device, the last stored original page or alternative page delivered to the first terminal device is associated with the user identifier of the first terminal device. When the electronic document browsing request is received from the transmission page storage means and the second terminal device, the final transmission page storage means If the user identifier according to the request is stored, characterized by comprising a delivering device for delivering the original page or substitute page associated with the following criteria to the second terminal device.
1) When the substitute page is associated with the user identifier and the attribute of the second terminal device is a predetermined attribute, the associated substitute page is distributed.
2) When the substitute page is associated with the user identifier and the attribute of the second terminal device is not a predetermined attribute, the original page corresponding to the associated substitute page is distributed.
3) When the original page is associated with the user identifier and the attribute of the second terminal device is a predetermined attribute, one of the alternative pages corresponding to the associated original page is distributed.
4) When the original page is associated with the user identifier and the attribute of the second terminal device is not a predetermined attribute, the associated original page is distributed.

  A third aspect of the present invention is an electronic document distribution system that distributes an electronic document composed of a plurality of pages, for example, an electronic document distribution server that distributes an electronic document in units of pages, and an electronic document distribution A terminal device that displays the electronic document distributed by the server in units of pages, and the electronic document distribution server includes a browsing request reception unit that receives an electronic document browsing request from the terminal device together with an identifier of the user of the terminal device; When the identifier of the last viewed page is received together with an instruction to end browsing of the electronic document from the terminal device, the last viewed page is stored in association with the identifier of the user of the first terminal device. When the electronic document browsing request is received from the page storage unit and the second terminal device, the user who relates to the request to the final browsing page storage unit A delivery unit that delivers a page corresponding to the associated page identifier to the second terminal device when the identifier is stored, and the terminal device sends the electronic document browsing request together with the user identifier A browsing request transmitting means for transmitting to the electronic document distribution server, a display means for receiving and displaying a page distributed by the electronic document distribution server in response to the electronic document browsing request transmitted by the browsing request transmitting means, and an electronic document Last browsing page transmission means for transmitting the identifier of the page displayed on the display means immediately before ending the browsing of the electronic document to the electronic document distribution server together with an instruction to end the browsing of the electronic document. It is characterized by having.

A fourth aspect of the present invention is an electronic document distribution system that distributes an electronic document composed of a plurality of pages, for example, an electronic document distribution server that distributes an electronic document in units of pages, and an electronic document distribution A terminal device that displays the electronic document distributed by the server in units of pages, and the electronic document distribution server provides one or a plurality of alternative pages different from the original page for at least a part of the original page constituting the electronic document. An alternative page storage means for storing, a browsing request receiving means for receiving an electronic document browsing request from the terminal device together with an identifier of the user of the terminal device and an attribute of the terminal device, and an instruction to end browsing of the electronic document from the first terminal device If the identifier of the last viewed original page or alternative page is accepted, the last viewed page Final browsing page storage means for storing the identifier of the zinal page or alternative page in association with the identifier of the user of the first terminal device, and final browsing page storage means when an electronic document browsing request is received from the second terminal device Distribution means for distributing the original page or the alternative page to the second terminal device in accordance with the following criteria:
1) When a substitute page is associated with the identifier of the user and the attribute of the second terminal device is a predetermined attribute, a substitute page corresponding to the identifier of the associated substitute page is distributed.
2) When an alternative page is associated with the user's identifier and the attribute of the second terminal device is not a predetermined attribute, an original page related to the alternative page corresponding to the identifier of the associated alternative page is distributed. To do.
3) When the original page is associated with the user identifier and the attribute of the second terminal device is a predetermined attribute, any of the alternative pages related to the original page corresponding to the identifier of the associated original page To deliver.
4) When the original page is associated with the user identifier and the attribute of the second terminal device is not a predetermined attribute, the original page corresponding to the identifier of the associated original page is distributed.
The terminal device transmits an electronic document browsing request together with an identifier of the user and an attribute of the terminal device to the electronic document distribution server, and responds to the electronic document browsing request transmitted by the browsing request transmitting unit. Display means for receiving and displaying the original page or alternative page distributed by the distribution server, and when ending the browsing of the electronic document, the identifier of the page displayed on the display means immediately before the end of the browsing of the electronic document is displayed. And a final browsing page transmission means for transmitting to the electronic document distribution server together with an instruction to end browsing of the electronic document.

  According to the present invention, even when the terminal device is different, when the user of the terminal device resumes browsing the electronic document, it can be displayed on the terminal device from the previously displayed page of the electronic document.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a system configuration diagram showing a configuration of an electronic document distribution system 10 according to an embodiment of the present invention. The electronic document distribution system 10 includes an electronic document distribution server 30 and a plurality of terminal devices 20.

  The terminal device 20-1 is, for example, a PC, and is connected to the electronic document distribution server 30 via a communication network 11 such as the Internet. The terminal device 20-2 is, for example, a mobile phone or a PDA having a wireless communication function, and can communicate with the electronic document distribution server 30 via the base station 12 connected to the communication network 11.

  The electronic document distribution server 30 stores electronic documents configured in units of pages. In response to electronic document browsing requests from the respective terminal devices 20, the electronic document distribution server 30 transmits the stored electronic document pages to a communication network. 11 to the terminal device 20. The electronic document stored in the electronic document distribution server 30 includes, for example, objects including text, moving images, and still images, and a combination of these objects. Manuals, electronic books, websites, etc.

  When each terminal device 20 receives an instruction to display an electronic document from a user, each terminal device 20 transmits a login request including a user ID and an electronic document browsing request to the electronic document distribution server 30 via the communication network 11. Each terminal device 20 receives and displays the page of the electronic document distributed from the electronic document distribution server 30 in response to the login request.

  After that, when the user finishes browsing the electronic document (for example, when the browser for browsing the electronic document is closed), the terminal device 20 displays information regarding the user ID and the last displayed page of the electronic document. A logout request including the final browsing information is transmitted to the electronic document distribution server 30 via the communication network 11.

  Thus, when receiving the next login request from the terminal device 20, the electronic document distribution server 30 can resume the distribution of the electronic document from the page previously distributed to the terminal device 20 that has received the login request.

  FIG. 2 is a block diagram illustrating an example of a detailed functional configuration of the terminal device 20.

  The terminal device 20 communicates with the electronic document distribution server 30 via the communication network 11 using a wired communication path or a wired and wireless communication path. Further, the terminal device 20 communicates with the base station 12 connected to the communication network 11 using W-CDMA, PHS, Wireless-LAN, etc., via the communication network 11 connected to the base station 12. Then, communication with the electronic document distribution server 30 may be performed.

  The terminal device 20 includes a browsing request transmission unit 200, a display unit 201, and a final browsing information transmission unit 202.

  When receiving an electronic document display instruction from the user of the terminal device 20 via the input device 22, the browsing request transmission unit 200 receives the user ID, the terminal type that is information for specifying the type of the user terminal 20, and the electronic A login request including a document browsing request is transmitted to the electronic document distribution server 30 via the communication network 11.

  In addition, when the browsing request transmitting unit 200 receives an instruction to acquire another page in the electronic document from the user via the input device 22 after transmitting the login request, the browsing request transmitting unit 200 should acquire the user ID, the terminal type, and the user ID. A page acquisition request including the page ID is transmitted to the terminal device 20.

  The display unit 201 receives a page of the electronic document distributed from the electronic document distribution server 30 in response to the login request transmitted by the browsing request transmission unit 200 and displays the page on the display device 21.

  The display device 21 is, for example, a CRT (Cathode Ray Tube) display having a sound reproduction function, an LCD (Liquid Crystal Display), or the like. In this example, the display device 21 and the input device 22 are described separately from the terminal device 20. However, as another example, the terminal device 20 has the functions of the display device 21 and the input device 22. Also good.

  When the user of the terminal device 20 finishes browsing the electronic document (for example, when the browser for browsing the electronic document is terminated), the final browsing information transmission unit 202 logs out a request including a user ID and final browsing information. Is transmitted to the electronic document distribution server 30 via the communication network 11.

  FIG. 3 is a block diagram illustrating an example of a detailed functional configuration of the electronic document distribution server 30. The electronic document distribution server 30 includes a browsing request reception unit 300, an electronic document distribution unit 301, a final browsing information storage unit 302, a final browsing information reception unit 303, an electronic document storage unit 304, and a correspondence table storage unit 305.

  The electronic document storage unit 304 stores an electronic document configured in units of pages in a format that can be displayed on the terminal device 20 of the corresponding terminal type for each terminal type of the terminal device 20 that displays the electronic document. ing. In this example, the electronic document storage unit 304 uses a page (hereinafter referred to as an original page) in a format that can be displayed on the terminal device 20 having relatively abundant hardware resources such as a PC, and a mobile phone. The electronic document is stored in two types of formats: pages that can be displayed on the terminal device 20 with relatively few hardware resources (hereinafter referred to as alternative pages).

  Each page of the electronic document corresponding to each terminal type is assigned an ID for identifying which page of the electronic document corresponds to the terminal device 20 of which terminal type.

  Note that the terminal type of the terminal device 20 is not limited to the type of PC or mobile phone. For example, the category of the electronic document distribution system 10 such as a general-purpose PC, a mobile phone, or a PDA, the capacity of the installed memory, and the display screen May be divided according to the display environment of the terminal device 20 such as the size of the terminal device 20, the display screen resolution, the communication speed, etc., the language used, the browser type, the browser version, etc. .

  The correspondence table storage unit 305 stores a correspondence table that identifies which page of each terminal type corresponds to which of the other terminal types. In this example, one original page is associated with a plurality of alternative pages.

  The final browsing information storage unit 302 uses the ID of the original page or the alternative page of the electronic document that was last displayed on the terminal device 20 when the terminal device 20 ended browsing of the electronic document as the final browsing information. 20 is stored in association with the ID of the user who is using 20.

  When receiving the logout request, the final browsing information receiving unit 303 stores the final browsing information included in the received logout request in the final browsing information storage unit 302 in association with the user ID included in the logout request.

  The browsing request reception unit 300 receives a login request including a user ID, a terminal type, and an electronic document browsing request from the terminal device 20 via the communication network 11.

  When the browsing request receiving unit 300 receives a login request from the terminal device 20, the electronic document distribution unit 301 refers to the final browsing information storage unit 302, and the final browsing information corresponding to the user ID included in the login request is displayed. Determine if it exists.

When the final browsing information of the corresponding user ID exists in the final browsing information storage unit 302, the electronic document distribution unit 301 can store the original page corresponding to the final browsing information in the final browsing information storage unit 302 according to the following criteria: An alternative page is specified, and the specified page is acquired from the electronic document storage unit 304 and distributed to the terminal device 20 that has received the login request.
1) The ID of an alternative page as final browsing information is stored in the final browsing information storage unit 302 in association with the user ID included in the login request, and the terminal type included in the login request is a predetermined attribute. (In this example, a mobile phone or the like), the electronic document distribution unit 301 acquires and distributes an alternative page indicated by the final browsing information.
2) The ID of the substitute page as final browsing information is stored in the final browsing information storage unit 302 in association with the user ID included in the login request, and the terminal type included in the login request is a predetermined attribute. If it is not (PC in this example), the electronic document distribution unit 301 refers to the correspondence table stored in the correspondence table storage unit 305 and distributes the original page corresponding to the alternative page indicated by the final browsing information.
3) The ID of the original page as final browsing information is stored in the final browsing information storage unit 302 in association with the user ID included in the login request, and the terminal type included in the login request is a predetermined attribute. In this case, the electronic document distribution unit 301 acquires and distributes one of the alternative pages corresponding to the original page indicated by the final browsing information.
4) The ID of the original page as final browsing information is stored in the final browsing information storage unit 302 in association with the user ID included in the login request, and the terminal type included in the login request is a predetermined attribute. If not, the electronic document distribution unit 301 refers to the correspondence table stored in the correspondence table storage unit 305 to acquire and distribute the original page indicated by the final browsing information.

  When the final browsing information of the corresponding user ID does not exist in the final browsing information storage unit 302, the electronic document distribution unit 301 refers to the electronic document storage unit 304 and corresponds to the terminal type included in the login request. The original page or the first page of the alternative page is acquired from the electronic document storage unit 304 and distributed to the terminal device 20 that has received the login request.

  When the browsing request reception unit 300 receives a page acquisition request from the terminal device 20 that has received the login request, the electronic document distribution unit 301 displays a page corresponding to the page ID and terminal type included in the page acquisition request as an electronic document. The page acquired from the storage unit 304 is distributed to the terminal device 20 that has transmitted the page acquisition request.

  FIG. 4 shows an example of the structure of data stored in the electronic document storage unit 304. The electronic document storage unit 304 stores an electronic document composed of a plurality of page data 3041 together with a corresponding terminal type 3040.

  In this example, a terminal type 3040 corresponding to the terminal device 20 such as a PC is indicated by aaa, and a terminal type 3040 corresponding to the terminal device 20 such as a mobile phone is indicated by bbb. As shown in the figure, the electronic document for the terminal device 20 having the terminal type 3040 of aaa is composed of two original pages, and page IDs A-1 and A-2 are assigned to the electronic document. The electronic document for the terminal device 20 having the terminal type 3040 of bbb is composed of six alternative pages, and page IDs B-1 to B-6 are assigned to the electronic document.

  By referring to the electronic document storage unit 304, the electronic document distribution unit 301 can acquire a page of an electronic document having a predetermined page ID and distribute it to the terminal device 20.

  FIG. 5 is a conceptual diagram for explaining an example when the page configuration is different for each terminal type.

  The electronic document storage unit 304 stores, for example, one of the original pages that can be displayed on the terminal device 20 whose terminal type is a PC or the like as data having a page configuration as shown in FIG. Further, the electronic document storage unit 304 is an alternative page corresponding to the original page 40 shown in FIG. 5A, for example, an alternative page that can be displayed on the terminal device 20 whose terminal type is a mobile phone or the like. 5 (b) to (d) are stored as page configuration data.

  In the original page 40 shown in FIG. 5A, when a button 404 is clicked on the terminal device 20 such as a PC, a moving image is reproduced in the moving image display area 401, and a telop synchronized with the moving image is displayed as a telop. Displayed in area 402. When the button 403 is clicked, a moving image digest is reproduced in the moving image display area 401, and a telop synchronized with the moving image digest is displayed in the telop display area 402. Here, the moving image digest is, for example, a moving image in which the number of frames displayed per unit time is smaller than the moving image reproduced in the moving image display area 401 when the button 404 is clicked.

  The thumbnail 405, thumbnail 406, and thumbnail 407 indicate, for example, the first frame of a moving image scene displayed in the moving image display area 401. When the thumbnail 405 is clicked, a frame corresponding to the thumbnail 405 is displayed. When the thumbnail 406 is clicked, the corresponding moving image is displayed in the moving image display area 401 from the frame corresponding to the thumbnail 406. When the thumbnail 407 is clicked, the corresponding moving image is displayed from the frame corresponding to the thumbnail 407.

  In alternative page 41 shown in FIG. 5B, thumbnail 410, thumbnail 411, and thumbnail 412 are displayed on terminal device 20 such as a mobile phone, and when thumbnail 410, thumbnail 411, or thumbnail 412 is selected, FIG. As shown in (c), the alternative page 42 is displayed, and from the frame corresponding to the thumbnail selected on the alternative page 41, the moving image is displayed in the moving image display area 420, and the corresponding telop is displayed in the telop display area 421. Is displayed.

  In the alternative page 42 shown in FIG. 5C, when the button 422 is selected, the page 41 is displayed on the terminal device 20 such as a mobile phone, and when the button 423 is selected, the page shown in FIG. 43 is displayed on the terminal device 20, and a digest of the moving image is displayed in the digest display area 430. In the alternative page 43 shown in FIG. 5D, when the button 432 is selected, the page 42 is displayed on the terminal device 20, and when the button 433 is selected, the page 41 is displayed on the terminal device 20.

  Here, the terminal device 20 such as a mobile phone having a relatively small memory capacity may have a smaller amount of data that can be acquired at one time than the terminal device 20 such as a PC. Therefore, the original page 40 created for the terminal device 20 such as a PC is divided into a plurality of parts for the terminal device 20 such as a mobile phone. As a result, even the terminal device 20 such as a mobile phone with a small display screen and a small amount of installed memory browses the contents indicated by the electronic document including the original page 40 created for the terminal device 20. be able to.

  Note that the display order is assigned in advance from the substitute page 41 to the substitute page 43 by the creator of the electronic document, etc., and after browsing the electronic document with the original page 40 displayed on the terminal device 20 such as a PC, etc. When browsing of the electronic document is resumed by the terminal device 20 such as a mobile phone, the terminal device 20 displays the page from the alternative page 41.

  In this example, the original page 40 is divided from the substitute page 41 into the substitute page 43. However, as another example, the data amount of the object displayed on the substitute page 43 from the substitute page 41 may be further reduced. . For example, the number of pixels of the thumbnail 410 to the thumbnail 412 in the alternative page 41 may be smaller than the number of pixels of the thumbnail 405 to the thumbnail 407 of the original page 40. In the alternative page 42, the number of frames of the moving image reproduced in the moving image display area 420 or the number of frames per unit time is set in the moving image display area 401 when the button 404 is clicked on the original page 40. The number may be smaller than the number of frames of the moving image reproduced in the above or the number of frames per unit time.

  FIG. 6 shows an example of the structure of data stored in the final browsing information storage unit 302. The final browsing information storage unit 302 stores the final browsing information 3021 in association with the user ID 3020. In this example, the final browsing information 3021 is the ID of the original page or alternative page that was last displayed on the terminal device 20.

  By referring to the final browsing information storage unit 302, the electronic document distribution unit 301 can acquire the ID of the original page or the alternative page displayed last time and last time in the terminal device 20 that transmitted the login request.

  FIG. 7 shows an example of the structure of data stored in the correspondence table storage unit 305. The correspondence table storage unit 305 stores a plurality of page IDs 3051 in association with each terminal type 3050.

  In the example shown in FIG. 7, the A-1 original page created for the terminal device 20 with the terminal type 3050 of aaa is B-1, B-2, and the terminal page 30 with the terminal type 3050 of bbb for the terminal device 20. It is shown that the page is divided into B-3 alternative pages, and the original page A-2 created for the terminal device 20 with the terminal type 3050 for aaa is for the terminal device 20 with the terminal type 3050 for bbb. As shown, it is divided into alternative pages of B-4, B-5, and B-4.

  By referring to the correspondence table storage unit 305, the electronic document distribution unit 301 can specify an original page or an alternative page corresponding to the final browsing information in the final browsing information storage unit 302.

  FIG. 8 is a flowchart illustrating an example of the operation of the terminal device 20. For example, the terminal device 20 starts the operation shown in this flowchart at a predetermined timing such as when the browser is activated by the user.

  First, the browsing request transmission unit 200 logs in the electronic document distribution server 30 by transmitting a login request including a user ID, a terminal type, and an electronic document browsing request to the electronic document distribution server 30 (S100). The display unit 201 receives the page of the electronic document from the electronic document distribution server 30 and displays it on the display device 21 (S101).

  Next, whether or not the browsing request transmission unit 200 has received an instruction from the user to display another page in the electronic document that is different from the page currently displayed on the display unit 201 via the input device 22. Is determined (S102). When a request to display another page is received (S102: Yes), the browsing request transmission unit 200 transmits an acquisition request for the instructed page to the electronic document distribution server 30 (S103), and the display device 210 performs the step again. The processing shown in 101 is performed.

  When a request for displaying another page has not been received (S102: No), the browsing request transmission unit 200 determines whether browsing of the electronic document has ended, for example, by determining whether the browser has ended. (S104). If browsing of the electronic document has not ended (S104: No), the browsing request transmission unit 200 performs the process shown in step 102 again.

  When the browsing of the electronic document is completed (S104: Yes), the browsing request transmission unit 200 sends a logout request including the user ID together with the ID of the page displayed last by the browsing request transmission unit 200 to the electronic document distribution server 30. (S105), and the processing of the terminal device 20 shown in this flowchart ends.

  FIG. 9 is a flowchart illustrating an example of the operation of the electronic document distribution server 30. For example, the electronic document distribution server 30 starts the operation shown in this flowchart at a predetermined timing such as when the power is turned on.

  First, the browsing request reception unit 300 determines whether or not a login request including a user ID, a terminal type, and an electronic document browsing request has been received (S200). When the login request is not received (S200: No), the browsing request reception unit 300 repeats Step 200 until the login request is received.

  When the login request is received (S200: Yes), the electronic document distribution unit 301 determines whether or not the final browsing information corresponding to the user ID included in the login request is in the final browsing information storage unit 302 (S201). ). When the final browsing information corresponding to the user ID is not in the final browsing information storage unit 302 (S201: No), the login request is accepted for the original page or the first page corresponding to the terminal type included in the login request. The browsing request reception unit 300 performs the process shown in step 210.

  When the final browsing information corresponding to the user ID is in the final browsing information storage unit 302 (S201: Yes), the electronic document distribution unit 301 determines whether the final browsing information is an ID of an alternative page (S202). ).

  If the ID is an alternative page ID (S202: Yes), the electronic document distribution unit 301 determines whether the terminal type included in the login request is a predetermined attribute (such as a mobile terminal in this example) (S204). . When the terminal type is a predetermined attribute (S204: Yes), the electronic document distribution unit 301 acquires the substitute page specified by the final browsing information from the electronic document storage unit 304, and receives the login request. (S206) and the processing shown in step 210 is performed.

  When the terminal type is not a predetermined attribute (PC in this example) (S204: No), the electronic document distribution unit 301 is identified by the final browsing information with reference to the correspondence table stored in the correspondence table storage unit 305. The original page corresponding to the alternative page is identified, the identified original page is acquired from the electronic document storage unit 304, and distributed to the terminal device 20 that has accepted the login request (S208), and the process shown in step 210 is performed.

  In step 202, when the final browsing information is the ID of the original page (S202: No), the electronic document distribution unit 301 determines whether the terminal type included in the login request is a predetermined attribute (such as a portable terminal in this example). It is determined whether or not (S205). When the terminal type is a predetermined attribute (S205: Yes), the electronic document distribution unit 301 refers to the correspondence table stored in the correspondence table storage unit 305 and corresponds to the original page specified by the final browsing information. An alternative page is specified, and any of the specified alternative pages is acquired from the electronic document storage unit 304 and distributed to the terminal device 20 that has accepted the login request (S207), and the process shown in step 210 is performed.

  When the terminal type is not a predetermined attribute (PC in this example) (S205: No), the electronic document distribution unit 301 acquires the original page specified by the final browsing information from the electronic document storage unit 304, and makes a login request. Is delivered to the terminal device 20 that has received (S209), and the processing shown in step 210 is performed.

  Next, the browsing request reception unit 300 determines whether a page acquisition request including the page ID and terminal type of another page in the electronic document has been received from the terminal device 20 (S210). When the page acquisition request is received (S210: Yes), the page corresponding to the terminal type included in the page acquisition request and the page corresponding to the page ID included in the page acquisition request is the terminal that has received the page acquisition request. Distribution to the apparatus 20 (S211), the browsing request reception part 300 performs the process shown in step 210 again.

  If a page acquisition request has not been received (S210: No), it is determined whether a logout request including a user ID and final browsing information has been received (S212). When the logout request is not received (S212: No), the browsing request receiving unit 300 performs the process shown in step 210 again.

  When the logout request is received (S212: Yes), the final browsing information reception unit 303 stores the final display information included in the logout request in the final browsing information storage unit 302 in association with the user ID included in the logout request. (S213), the operation of the electronic document distribution server 30 shown in this flowchart ends.

  The embodiment of the present invention has been described above.

  As is clear from the above description, according to the electronic document distribution system 10 of the present invention, even when the terminal device 20 is different, the last display is made when the user of the terminal device 20 resumes browsing the electronic document. It can be displayed on the terminal device 20 from the page of the electronic document.

  In addition, this invention is not limited to said embodiment, Many deformation | transformation are possible within the range of the summary.

  For example, the terminal device 20 is sticky data attached to an area of an object constituting each page of the electronic document, and the area information of the object to which the text to be written on the sticky note, the shape, color, and the sticky note are attached. Etc., bookmarks attached to pages of electronic documents, search histories performed in electronic documents, search histories including search date and time, search keywords, etc., browsing histories of visited pages, etc. You may further transmit to the electronic document delivery server 30 with the logout request | requirement containing final browsing information.

  In this case, the electronic document distribution server 30 stores the tag data, bookmark, search history, browsing history, and the like received together with the logout request in association with the user ID, and when the login request is accepted next time, If such information corresponding to the included user ID exists, the information is transmitted to the terminal device 20 together with the original page or the substitute page of the electronic document to be transmitted in response to the login request.

  When receiving the bookmark, the search history, the browsing history, and the like from the electronic document distribution server 30 together with the original page or the alternative page of the electronic document at the time of login, the terminal device 20 receives these pieces of information in response to an instruction from the user. Is displayed on the display unit 201.

  When the tag data is received from the electronic document distribution server 30 together with the original page or substitute page of the electronic document at the time of login, the display unit 201 displays an object corresponding to the received tag data on the received original page or substitute page. If it exists, a tag corresponding to the tag data is attached to the area of the object and displayed on the display device 21.

  In this way, at each login, information such as tag data, bookmarks, search history, and browsing history stored in the electronic document distribution server 30 is transmitted to the terminal device 20 corresponding to the user ID included in the login request. Therefore, even if the terminal device 20 that creates the information differs from the terminal device 20 that refers to the information, the user can refer to the information.

  In the above embodiment, as shown in FIG. 4, the electronic document data is stored in advance for each terminal type in the form of the original page and the alternative page. As another example, the electronic document storage unit 304 stores the electronic document data. Stores one type of electronic document data, and each time the browsing request reception unit 300 receives a login request, the terminal device 20 corresponding to the terminal type included in the login request is obtained from this one type of electronic document data. The electronic document distribution server 30 may be configured to have a function of generating a page in a format that can be displayed and supplying the page to the electronic document distribution unit 301.

  Moreover, in the said embodiment, although the electronic document delivery server 30 is set as the structure which acquires final browsing information from the terminal device 20, as another embodiment, the electronic document delivery part 301 transmits the page of an electronic document to the terminal device 20. Each time it is done, the transmitted page may be stored in the final browsing information storage unit 302 as the page last browsed on the terminal device 20. Thereby, even if the terminal device 20 ends browsing of the electronic document due to a communication error, the terminal device 20 can display the electronic document from the previously displayed page after the communication environment has returned to normal.

  In addition, in the case where a moving image is included in the page, when the reproduction of the moving image is interrupted when the browsing of the electronic document is finished, the final browsing information transmission unit 202 displays the display unit 201 at the end. In addition to the ID of the page that has been selected, interruption information that is information indicating the interruption location of the moving image may be transmitted to the electronic document distribution server 30.

  At this time, the electronic document distribution server 30 receives the interruption information and stores the received interruption information in association with the user ID. Then, when a login request is received next time, the electronic document distribution server 30 transmits interruption information corresponding to the user ID included in the login request to the terminal device 20 together with the electronic document page. The display unit 201 displays the page received from the electronic document distribution server 30 and reproduces the moving image in the page from the moving image corresponding to the interruption information received together with the page.

  Here, the interruption information is, for example, the last frame number displayed on the display unit 201 in the frame number displayed on the display unit 201 in the reproduction of the moving image or the moving image associated with the scene information. Number etc. The scene information is information defined by, for example, a start time and an end time in a moving image, a start frame and an end frame number in the moving image, and the like.

  As shown in FIG. 10, when the display of the original page 44 is resumed when the original page 44 is wider than the display area 440 of the screen of the terminal device 20, it was finally displayed in the display area 440. The original page 44 may be displayed again from the position, that is, the position where the original page 44 was scrolled last.

  In this case, the terminal device 20 uses the configuration of the original page 44 and the display information such as the font size, window size, and display resolution in the terminal device 20 to display the characters displayed in the display area 440. The character 441 displayed at the top and the left end is specified, and the reference character information, which is information indicating the specified character 441, is transmitted to the electronic document distribution server 30 together with the final browsing information. The electronic document distribution server 30 stores the received reference character information in association with the user ID.

  When the reference character corresponding to the user ID included in the login request is stored when the login request is received, the electronic document distribution server 30 displays the display information on the terminal device 20 at the current time to the terminal device 20. Inquire. When the display information at the current terminal device 20 is received from the terminal device 20, the electronic document distribution server 30 calculates the amount of scrolling necessary to display the reference character on the top row of the display area 440. The calculated scroll amount is distributed to the terminal device 20 together with the page to be distributed.

  Then, the terminal device 20 scrolls the original page 44 received from the electronic document distribution server 30 by the scroll amount received together with the original page 44 and displays it on the display device 21.

  Thus, when the original page 44 is displayed again after the display of the original page 44 in the state shown in FIG. 10A, the terminal device 20 displays the original page 44 as shown in FIG. Can be resumed.

  Furthermore, after displaying the original page 44 in the state shown in FIG. 10A in the terminal device 20 such as a PC, when displaying an alternative page corresponding to the original page 44 again in the terminal device 20 such as a mobile phone, As shown in FIG. 10C, the terminal device 20 is scrolled so that the character 461 corresponding to the reference character is displayed at the top of the display area 460, and the substitute page 46 corresponding to the original page 44 is displayed. Can be displayed.

1 is a system configuration diagram showing a configuration of an electronic document distribution system 10 according to an embodiment of the present invention. 3 is a block diagram illustrating an example of a detailed functional configuration of a terminal device 20. FIG. 3 is a block diagram illustrating an example of a detailed functional configuration of an electronic document distribution server 30. FIG. An example of the structure of data stored in the electronic document storage unit 304 is shown. It is a conceptual diagram for demonstrating an example when a page structure differs for every terminal classification. An example of the structure of the data stored in the final browsing information storage unit 302 is shown. An example of the structure of the data stored in the correspondence table storage unit 305 is shown. 4 is a flowchart showing an example of the operation of the terminal device 20. 4 is a flowchart illustrating an example of an operation of the electronic document distribution server 30. It is a conceptual diagram for demonstrating an example in the case of restarting browsing of an electronic document from the position in the page which complete | finished browsing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Electronic document delivery system, 11 ... Communication network, 12 ... Base station, 20 ... Terminal device, 200 ... Browse request transmission part, 201 ... Display part, 202 ... Final browsing information transmission unit, 21 ... display device, 22 ... input device, 30 ... electronic document distribution server, 300 ... browsing request reception unit, 301 ... electronic document distribution unit, 302 ... Final browsing information storage unit, 3020 ... user ID, 3021 ... final browsing information, 303 ... final browsing information receiving unit, 304 ... electronic document storage unit, 3040, 3050 ... terminal type, 3041 ... Page data, 305 ... Correspondence table storage unit, 3051 ... Page ID, 40, 44 ... Original page, 400 ... Title, 401, 420 ... Moving image display area, 402 , 421, 43 ... Telop display area, 404, 422, 423, 432, 433 ... button, 405, 406, 407, 410, 411, 412 ... thumbnail, 41, 42, 43, 45, 46, 47 ... Alternative pages, 430 ... digest display area, 440, 460 ... display area, 441, 461 ... characters

Claims (8)

An electronic document distribution server that distributes an electronic document composed of a plurality of pages to a terminal device in units of pages,
A browsing request receiving means for receiving an electronic document browsing request from the terminal device together with an identifier of a user of the terminal device;
Storage means for storing, in association with an identifier of a user of the first terminal device, a page delivered to the first terminal device immediately before receiving an instruction to end browsing of the electronic document from the first terminal device When,
When the electronic document browsing request is received from the second terminal device, if the identifier of the user related to the request is stored in the storage unit, the associated page is stored in the second terminal device. An electronic document distribution server comprising distribution means for distribution. An electronic document distribution server that distributes an electronic document composed of a plurality of pages to a terminal device in units of pages,
Alternative page storage means for storing one or a plurality of alternative pages different from the original page for at least a part of the original pages constituting the electronic document;
A browsing request receiving means for receiving an electronic document browsing request from the terminal device together with an identifier of the user of the terminal device and an attribute of the terminal device;
When an instruction to end browsing of the electronic document is received from the first terminal device, the original page or alternative page delivered to the first terminal device immediately before is associated with the identifier of the user of the first terminal device. Last transmitted page storage means for storing;
When the electronic document browsing request is received from the second terminal device, and the identifier of the user related to the request is stored in the final transmission page storage unit, the original page associated by the following criteria Alternatively, the electronic document distribution server comprising distribution means for distributing the substitute page to the second terminal device.
1) When an alternative page is associated with the user identifier and the attribute of the second terminal device is a predetermined attribute, the associated alternative page is distributed.
2) If an alternative page is associated with the user identifier and the attribute of the second terminal device is not a predetermined attribute, the original page corresponding to the associated alternative page is distributed.
3) When an original page is associated with the user's identifier and the attribute of the second terminal device is a predetermined attribute, one of the alternative pages corresponding to the associated original page is distributed.
4) When the original page is associated with the user identifier and the attribute of the second terminal device is not a predetermined attribute, the associated original page is distributed. An electronic document distribution system for distributing an electronic document composed of a plurality of pages,
An electronic document distribution server for distributing the electronic document in units of pages;
A terminal device that displays the electronic document distributed by the electronic document distribution server in units of pages;
The electronic document distribution server includes:
A browsing request receiving means for receiving an electronic document browsing request from the terminal device together with an identifier of a user of the terminal device;
When an identifier of the last viewed page is received together with an instruction to end browsing of the electronic document from the first terminal device, the identifier of the last viewed page is associated with the identifier of the user of the first terminal device. A final browsing page storage means for storing;
When the electronic document browsing request is received from the second terminal device, if the identifier of the user related to the request is stored in the final browsing page storage unit, it corresponds to the identifier of the associated page. Delivery means for delivering a page to the second terminal device;
The terminal device
Browsing request transmission means for transmitting the electronic document browsing request together with a user identifier to the electronic document distribution server;
In response to the electronic document browsing request transmitted by the browsing request transmitting unit, a display unit that receives and displays a page distributed by the electronic document distribution server;
When the browsing of the electronic document is ended, the identifier of the page displayed on the display unit immediately before the end of the browsing of the electronic document is transmitted to the electronic document distribution server together with an instruction to end the browsing of the electronic document. An electronic document distribution system comprising: a final browsing page transmission unit configured to perform a final browsing page transmission. The electronic document distribution system according to claim 3,
The page is composed of objects including moving images,
The final browsing page transmission means includes
When the playback of the moving image included in the last viewed page is interrupted when ending the browsing of the electronic document, the information indicating the interruption location in the moving image is further transmitted to the electronic document distribution server,
The electronic document distribution server includes:
When the first terminal device finishes browsing the electronic document, if it receives information indicating an interrupted location in the moving image together with an instruction to end the browsing of the electronic document, information indicating the received interrupted location is displayed. And further comprising an interruption location storage means for storing in association with the identifier of the user of the first terminal device,
The delivery means includes
When the electronic document browsing request is received from the second terminal device, a user identifier related to the request is stored in the final browsing page storage unit, and the interruption location storage unit relates to the request When the identifier of the user is stored, information indicating the interrupted location is delivered to the second terminal device together with the page corresponding to the identifier of the associated page,
The display means includes
When the information indicating the interrupted location is received together with the page from the electronic document distribution server, the received page is displayed, and the moving image included in the received page corresponds to the information indicating the received interrupted location. An electronic document distribution system characterized by being reproduced from The electronic document distribution system according to claim 3,
The page has a larger area than the area displayed on the screen of the terminal device,
The final browsing page transmission means includes
When ending the browsing of the electronic document, display location information, which is information indicating a location displayed on the screen of the first terminal immediately before the end of browsing, in the last browsed page, Further transmitted to the electronic document distribution server together with an instruction to end browsing of the electronic document,
The electronic document distribution server includes:
When the first terminal device ends the browsing of the electronic document, when the display location information is received together with an instruction to end the browsing of the electronic document, the received display location information is displayed as the first terminal device. Display location storage means for storing the information in association with the user identifier of
The delivery means includes
When the electronic document browsing request is received from the second terminal device, an identifier of the user related to the request is stored in the final browsing page storage unit, and the display location storage unit relates to the request When the identifier of the user is stored, the display location information associated with the page corresponding to the identifier of the associated page is distributed to the second terminal device,
The display means includes
When the display location information is received together with a page from the electronic document delivery server, a location corresponding to the display location information is displayed in the received page. An electronic document distribution system for distributing an electronic document composed of a plurality of pages,
An electronic document distribution server for distributing the electronic document in units of pages;
A terminal device that displays the electronic document distributed by the electronic document distribution server in units of pages;
The electronic document distribution server includes:
Alternative page storage means for storing one or a plurality of alternative pages different from the original page for at least a part of the original pages constituting the electronic document;
A browsing request receiving means for receiving an electronic document browsing request from the terminal device together with an identifier of the user of the terminal device and an attribute of the terminal device;
When an identifier of the original page or alternative page that was browsed last is received together with an instruction to end browsing of the electronic document from the first terminal device, the identifier of the original page or alternative page that was browsed last is received in the first terminal Final browsing page storage means for storing in association with the identifier of the user of the device;
When the electronic document browsing request is received from the second terminal device, and the identifier of the user related to the request is stored in the final browsing page storage unit, the original page or the substitute page is determined according to the following criteria. Delivery means for delivering to the second terminal device;
1) When a substitute page is associated with a user identifier and the attribute of the second terminal device is a predetermined attribute, a substitute page corresponding to the identifier of the associated substitute page is distributed.
2) If a substitute page is associated with the user identifier and the attribute of the second terminal device is not a predetermined attribute, the original page associated with the substitute page corresponding to the identifier of the associated substitute page To deliver.
3) When an original page is associated with a user identifier and the attribute of the second terminal device is a predetermined attribute, an alternative page associated with the original page corresponding to the identifier of the associated original page Deliver either.
4) When an original page is associated with the user identifier and the attribute of the second terminal device is not a predetermined attribute, the original page corresponding to the identifier of the associated original page is distributed.
The terminal device
A browsing request transmission means for transmitting the electronic document browsing request together with an identifier of the user and an attribute of the terminal device to the electronic document distribution server;
In response to the electronic document browsing request transmitted by the browsing request transmission unit, a display unit that receives and displays the original page or the substitute page distributed by the electronic document distribution server;
When the browsing of the electronic document is ended, the identifier of the page displayed on the display unit immediately before the end of the browsing of the electronic document is transmitted to the electronic document distribution server together with an instruction to end the browsing of the electronic document. An electronic document distribution system comprising: a final browsing page transmission unit configured to perform a final browsing page transmission. The electronic document distribution system according to claim 6,
Either the original page and the alternative page corresponding to the original page is composed of an object including a moving image,
The final browsing page transmission means includes
When the reproduction of the moving image included in the last viewed original page or alternative page is interrupted when the browsing of the electronic document is terminated, information indicating the interruption location in the moving image is sent to the electronic document distribution server. Send more,
The electronic document distribution server includes:
When the first terminal device finishes browsing the electronic document, if it receives information indicating an interrupted location in the moving image together with an instruction to end the browsing of the electronic document, information indicating the received interrupted location is displayed. And further comprising an interruption location storage means for storing in association with the identifier of the user of the first terminal device,
The delivery means includes
When the electronic document browsing request is received from the second terminal device, a user identifier related to the request is stored in the final browsing page storage unit, and the interruption location storage unit relates to the request When the user identifier is stored, the information indicating the interrupted location is delivered to the second terminal device together with the original page or the substitute page,
The display means includes
When the information indicating the interruption location is received together with the original page or the substitute page from the electronic document distribution server, the received original page or the substitute page is displayed, and the moving image included in the received original page or the substitute page is displayed. An electronic document distribution system for reproducing from a location corresponding to the received information indicating the interrupted location. The electronic document distribution system according to claim 6,
The original page and the substitute page have a wider area than the area displayed on the screen of the terminal device,
The final browsing page transmission means includes
Display indicating information that is displayed on the screen of the first terminal immediately before the end of the browsing in the original page or the alternative page that was last viewed when the electronic document is terminated. The location information is further transmitted to the electronic document distribution server together with an instruction to end browsing of the electronic document,
The delivery means includes
When the electronic document browsing request is received from the second terminal device, an identifier of the user related to the request is stored in the final browsing page storage unit, and the display location storage unit relates to the request When the user identifier is stored, the associated display area information is delivered to the second terminal device together with the page corresponding to the associated original page or alternative page identifier,
The display means includes
When the display location information is received together with the original page or alternative page from the electronic document distribution server, a location corresponding to the display location information is displayed in the received original page or alternative page. Electronic document distribution system.

Images