JP2003006218A - Contents providing method for portable terminal and system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to reduce communication volume of contents to be received by a portable terminal in accordance with users intention. SOLUTION: The portable terminal is provided with a first step which accepts a request for deletion of partial element of the above contents and transmits it to the contents conversion means, and a second means which registers the content of the request for deletion received from the portable terminal in the above content conversion means by portable terminals, deletes responding to the content delivery request after the registration, the partial elements of the contents corresponding to the registered content of the request for deletion, and delivers the deletion to the portable terminal requesting the delivery.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case where information (content) created on the assumption that it is used in an existing desktop computer or a notebook computer is acquired by a mobile terminal such as a mobile phone via the Internet. The present invention relates to a content providing method and system suitable for use in reducing a communication fee of a user by reducing a packet communication amount in a mobile communication carrier.

[0002]

2. Description of the Related Art A function of obtaining and browsing WWW contents via the Internet using a mobile phone has been realized. However, the content created on the assumption that it is used on a desktop computer or a notebook computer has a large amount of information because it is supposed to be viewed on a normal display device, and has only a small display screen such as a mobile phone. If it is displayed on the screen of the mobile terminal as it is, it cannot be displayed on the screen, and the convenience of the user is impaired. Therefore, Japanese Patent Laid-Open No. 2000-222276 discloses a method of converting content created on the assumption that it is displayed on a normal display device according to the display function of the receiving terminal.

[0003] In "Pakewari" started by Fifty-Four and Media Do on March 30, 2001, a tag specified by the user, for example, an element including <IMG> is deleted from the HTML data. By doing so, it provides a function to reduce the amount of communication.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
According to the technology disclosed in Japanese Laid-Open Patent Publication No. 222276, the content for mobile terminals converted from the content created on the assumption that it is displayed on a display device attached to a personal computer (PC) or the like has a smaller image size. As a result, it can be displayed on the screen of the mobile terminal. However, in the content created on the assumption that it is displayed on a display device of a normal screen size attached to a personal computer, etc., the image is used only to improve the appearance on the screen, so for the user, May have to obtain unnecessary information by packet communication. If such information of only good-looking appearance is to be received, there is a problem in that wasteful communication charges will increase and the financial burden on the user will increase. Also,
In the method of deleting information by specifying a specific tag such as "packet allocation", if the specification method is wrong, there is a risk that even useful information that is considered necessary for the user may be deleted. .

In addition, in the information created on the assumption that it is displayed on a display device having a normal screen size, link information for downloading voices and images, information for uploading a file, and the like are transmitted from a mobile terminal. It contains useless information that is not available. Therefore, if information that cannot be used by such a mobile terminal is simply received, there is a problem that the financial burden on the user is increased as in the above case.

[0006] An object of the present invention is to prevent the information useful for the user from being deleted and to efficiently delete the unnecessary information, thereby reducing the amount of packet communication and reducing the financial burden on the user. It is to provide a content providing method and system for a mobile terminal capable of performing.

[0007]

In order to achieve the above object, the content providing method for a mobile terminal according to the present invention is a method in which content delivered from a content delivery server is carried by content conversion means arranged in a content delivery network. A method of converting and providing to a terminal, the first step of receiving a deletion request for a partial element of the content in a mobile terminal and transmitting the deletion request to the content conversion means, and receiving from the mobile terminal in the content conversion means. The content of the deletion request is registered for each mobile terminal, the partial element of the content corresponding to the content of the registered deletion request is deleted in response to the registered content distribution request, and the content is distributed to the mobile terminal of the distribution request source. And a step. Then, in the first step, the deletion request is accepted by selecting the screen display template prepared for each mobile terminal, the identification information of the template is transmitted to the content conversion means, and in the second step, The template identification information received from the terminal is registered, and in response to the content distribution request after registration, the partial elements not specified by the template corresponding to the registered template identification information are deleted and distributed to the mobile terminal of the distribution request source. It is characterized by

Further, it is characterized in that the method further comprises a step of receiving a request for further deleting the partial element with respect to the content in which the partial element is deleted by using the template, and registering the request in the content converting means. Further, the content conversion means is arranged in the content distribution server. Further, the method further comprises the step of accepting a cancellation request for canceling the content of the deletion request registered in the content conversion means, and canceling the content of the deletion request registered according to the cancellation request. Further, the partial elements deleted by the content conversion means are temporarily stored, and in response to an instruction from the mobile terminal,
The method further comprises the step of transmitting the deleted subelement. Further, the method further comprises the step of creating the content of the deletion request received from the mobile terminal or the statistical information of the deleted partial element according to the content of the deletion request and providing the statistical information to the content distributor. Further, it is characterized by further comprising a step of charging a user a fee according to the data amount of the deleted subelement.

The content providing system according to the present invention is a system for converting the content distributed from the content distribution server to a mobile terminal by a content conversion means arranged in the content distribution network and providing the content. The mobile terminal includes a deletion request designating unit that receives a deletion request for the partial element of the content and transmits the deletion request to the content conversion unit, and the content conversion unit registers the content of the deletion request received from the mobile terminal for each mobile terminal. In addition, in response to the content distribution request after registration, it is characterized by including means for deleting a partial element of the content corresponding to the content of the registered deletion request and distributing the partial element to the mobile terminal of the distribution request source.

The deletion request designating means accepts the content deletion request by selecting a screen display template prepared for each mobile terminal, and transmits the identification information of the template to the content converting means. The content conversion means registers the identification information of the template received from the mobile terminal, deletes the partial element not specified in the template corresponding to the registered template identification information, and distributes it to the mobile terminal of the distribution request source. Is provided. Further, the content conversion means is provided with means for accepting a request to further delete the partial element for the content in which the partial element has been deleted using the template, and registering the request in the content conversion means. Further, the content conversion means is arranged in the content distribution server. In addition, the content conversion means,
It further comprises means for accepting a cancellation request for canceling the content of the deletion request from the mobile terminal and canceling the content of the deletion request already registered according to the cancellation request. Further, the content conversion means is provided with a temporary storage means for temporarily storing the deleted partial element, and transmits the deleted partial element according to an instruction from the mobile terminal. Further, it is characterized by further comprising means for creating the content of the deletion request received from the mobile terminal or the statistical information of the deleted partial element according to the content of the deletion request and providing the statistical information to the content distributor. Further, it is characterized by further comprising means for charging the user a fee according to the data amount of the deleted subelement.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a content providing method and system according to the present invention will be described below with reference to the drawings. FIG. 1 is a system configuration diagram showing an embodiment of a content providing system to which the present invention is applied. The system in this embodiment stores WWW content,
The content distribution server 1 in which the WWW server program is operating and the content conversion server 2 in which the content conversion program is operating are connected to the Internet 4 via the network 3, and the intra-communication carrier network 6 is also connected via the gateway 5. Internet 4
It is configured to be connected to. Mobile phone 8, PDA
The mobile terminal 9 such as is connected to the network in the communication carrier via the wireless communication base station 7.

FIG. 2 is a block diagram of the content distribution server 1 and the content conversion server 2. The content distribution server computer 1 includes a CPU 11A and a memory 1
Terminal device 11 consisting of 1B, WWW server program 1
2A, WWW contents 12B, conversion template 12
External storage device 12 storing C and communication port 1
3, the content conversion server 2 has a CPU 21.
A, a terminal device 21 including a memory 21B, a content conversion program 22A, an element deletion designation table 22B for each user, and template information 22 for each content
C, a content cache 22 for temporarily holding the content obtained from the WWW server program 12A
The external storage device 22 in which D is stored and the communication port 2
3, which are connected by a network 3 for communicating data.

In such a configuration, the content distribution server 1 holds content created on the assumption that it is displayed on a display screen of a relatively large size such as a personal computer. Therefore, when the content conversion server 2 receives a content distribution request from the mobile phone 8 or the mobile terminal 9 having a screen whose display size is smaller than that of the personal computer, via the intra-mobile communication carrier network 6, the gateway server 5, and the Internet 4. , The WWW server program 12 of the content distribution server 1 storing the requested content
A content distribution request is transmitted to A and the content is received.

In the case of the first distribution request, since the user does not specify the element to be deleted, the received content is stored in the content cache 22D of itself, and is directly stored in the requesting mobile phone 8 or mobile terminal 9. Send. The mobile phone 8 and the mobile terminal 9 display the received content on the screen, specify unnecessary elements on the screen, and transmit the elements to be deleted to the content conversion server 2. Upon receiving the deletion request, the content conversion server 2 takes out the original content from the content cache 22D, deletes the designated element from the original content, and sends the element to the requesting mobile phone 8 or mobile terminal 9.

From the mobile phone 8 or the mobile terminal 9, a URL (Uniform Resource Locato) indicating the storage location of the content is displayed.
Along with r), a request for template acquisition can be sent to the content conversion server program. Upon receiving this request, the content conversion server 2 receives the requested UR.
It checks whether the template corresponding to L exists in its own external storage device, and if it exists, creates the content for selecting the template and sends it back to the requesting mobile phone 8 or mobile terminal 9.

The mobile phone 8 or the mobile terminal 9, which has received the content for selecting the template, accepts the user's selection instruction from the display screen and transmits the result to the content conversion server 2. The content conversion server 2 converts the content received from the WWW server program 12A according to the template specified by the user, and transmits the content to the requesting mobile phone 8 or mobile terminal 9. Further, from the mobile phone 8 or the mobile terminal 9, it is possible to transmit a deletion instruction or an instruction to cancel the selection of the template together with the URL indicating the storage location of the content.

The content conversion program 22A uses the identifier of the mobile terminal user as a key, and stores the URL indicating the storage location of the content and the designation or template of the element to be deleted as a set in the external storage device. WW
The content obtained from the W server program and the element actually deleted are also stored in the content cache 22D so that a request for the deleted element or a request for obtaining the same content can be quickly answered.

A detailed description will be given below. FIG. 3 is an example of content stored in the external storage device 12 on the content distribution server 1. FIG. 4 is a functional block diagram showing the configuration of the content conversion program 22A that operates on the content conversion server 2. The content conversion program 22A receives a request from the mobile phone 8 or the mobile terminal 9 and returns a content conversion result 401, and receives a request from the mobile phone 8 or the mobile terminal 9 according to the request from the WWW server. A content acquisition program 402 for issuing a content acquisition request to the program 12A, a content acquisition program 402 for acquiring the content, a deletion element for the content for each user, a deletion table management program 403 for managing the conversion template, and a conversion template for each content are managed. A template management program 404, a content that is converted by the content acquisition program 402 according to a user's instruction in accordance with a template, or an element in the content is deleted and returned to the mobile phone 8 or the mobile terminal 9. Content creation program 405 for creating content, a deletion designation screen creation program 406 for creating content for the user to specify deletion elements, and a cache management program 407 for managing content obtained from the WWW server program 12A and deleted elements. Is equipped with.

FIG. 5 shows the configuration of the element deletion designation table 22B for each user, which is stored in the external storage device 22 on the content conversion server 2 and is used by the content conversion program 22A. The element deletion designation table 22B includes a user ID 501 for identifying the user,
URL5 of the content that each user is trying to acquire
02 (however, the protocol name (http :) can be omitted), template ID 503 adapted to the content,
It is composed of a deletion element 504 represented by a character string indicating the position of the element to be deleted from the content. Here, the position of the element that constitutes the content is a numerical value indicating the order of the branches when the content is represented by a tree structure.
For example, 1.2.3 indicates the third of the child elements of the second element of the first element in the content. The character string of the element position is a sequence of numbers representing the element position, followed by '%' and then the character string of the element itself.

FIG. 6 is an example of a diagram showing where the template for content conversion is stored in the external storage device 22 on the content conversion server 2.
In the template directory 601, a computer name 602 including the domain name of the content distribution server 1,
There is a directory 610, in which the directory name 605 in which the content on the content distribution server 1 is stored, or the file name (603, 606,
There are directories 608 and 611). The template file (60
4, 607, 609, 612) are stored.

FIG. 7 is a diagram showing an example of a template 700 for content conversion, which is acquired from the external storage device 12 of the content distribution server 1 and stored in the external storage device 22 on the content conversion server 2. In the template 700 illustrated here, the one corresponding to the element of the original content is described, and the tag name "delete" is added (701A, 701B, 701C, 70).
1D, 701E), the elements are deleted from the content when configuring the template selection screen, and the corresponding elements are deleted when the content conversion program 22A applies the template at the time of content conversion. Also, "c
Added an attribute called "onvlen" (702A, 702B, 702
By specifying the length by doing C), the length of the display character when applying the template is shortened.

FIG. 8 is an example of a screen of the mobile phone 8 or the mobile terminal 9 which uses the content conversion service. In the present embodiment, when connecting to the content conversion server 2 from the mobile phone 8 or the mobile terminal 9, a text area 801 for inputting a URL where the content exists, a button 802 for instructing a connection for obtaining the content on the screen, A button 803 for instructing acquisition of a template for content conversion and a button 804 for instructing cancellation of template specification and deletion specification for content are displayed.

FIG. 9 shows an example of a screen displayed by the mobile phone 8 or the mobile terminal 9 using the content conversion service for designating a template. When the template acquisition button 803 shown in FIG. 8 is selected, the content conversion server 2 transmits data for displaying template information. HTML display screen 901
Displays choice buttons 1, 2 and 3 (902A, 902B, 902C) for selecting a template. In the example of FIG. 9, since the choice button 2 (902B) is marked with “x”, it indicates that the second template is being selected. The template is displayed in the template display units 1, 2, 3 (903A, 90
3B, 903C), the scroll bar 907 cannot be used to display the template selection screen in one screen.
Is displayed. In the example of FIG. 9, the template display unit 1 displays 16 characters of the elements of the list and an image 906 as shown by reference numeral 904. Also,
The template display unit 2 shows that the elements of the list are displayed in 8 characters as indicated by reference numeral 905, but no image is displayed.

FIG. 10 is an example of a display screen when the mobile phone 8 using the content conversion service obtains the content shown in FIG. 7 from the content distribution server 1 without designating a template and a deletion part. Here, H
The HTML content is interpreted and displayed on the TML display screen 1001. Further, at the bottom of the screen, a deletion setting button 1002 for instructing deletion specification for the displayed content is displayed.

FIG. 11 is an example of a screen displayed by the mobile phone 8 using the content conversion service for instructing an element to be deleted from the content shown in FIG. Here, a choice button for selecting each element shown in FIG. 3 is displayed on the HTML display screen 1101, and an element (1103A, 1103B, 1103A, 1103B, 1103C, 1
103D, 1103E, 1103F, 1103G, 11
03H, 1103I) is selected. At the bottom of the display screen, an execution button 1104 for instructing the content conversion program 22A to register a deletion element and a cancel button 1105 for canceling the deletion process and returning to the initial screen (FIG. 8) are displayed. Also, the HTML display screen 110
If there is content that cannot be displayed within 1, scroll bar 1102 is displayed.

In FIG. 12, the mobile phone 8 using the content conversion service obtains the result of the content conversion program 22A deleting each element from the content displayed in FIG. 3 according to the deletion designation shown in FIG. It is an example of a display screen at the time. The resulting HTML is HT
It is displayed on the ML display screen 1201.

FIG. 13 is a diagram showing an example of a data flow between the mobile terminal 9, the content conversion server 2, and the content distribution server 1 when using the content conversion service. First, when the mobile terminal 9 connects to the content conversion server 2 (step 1301), an initial screen for using the content conversion service is returned (step 1302). When a URL is specified on the initial screen and a template request is issued to the content conversion server 2 (step 1303), the content conversion server 2 determines that there is no template corresponding to the specified URL in the external storage device 22. Then, a template request is issued to the content distribution server 1 (step 1304) and the template is acquired (step 1305). Thereafter, the received template is stored in the external storage device 22 (step 1306),
Further, the content for the template selection screen is created and returned to the mobile terminal 9 (step 1307).

On the other hand, when the user specifies a template on the portable terminal 9 and sends it to the content conversion server 2 (step 1308), the content conversion server 2 determines that the content specified by the URL is stored in the content cache 22D. If not, a content acquisition request is issued to the content distribution server 1 (step 1309) and the content is received (step 1310). Next, the received content is stored in the content cache 22D, new content to which the template is applied is created (step 1311), and this content (content to which the template is applied) is transmitted to the mobile terminal 9 (step 131).
2).

When the mobile terminal 9 requests the deletion designation screen (step 1313), the deletion designation screen content is created from the content in the content cache 22D and returned (step 1314). The step of creating the deletion designation screen content is performed by the mobile terminal 9
It may be executed by the above content display program (not shown). When the user selects an element to be deleted and issues a deletion designation request to the content conversion server 2 (step 13
15) The content conversion server 2 stores the specified deletion element information in the content cache 22D, deletes the specified element from the content stored in the content cache 22D (step 1316), and deletes the specified element. The subsequent contents are returned to the mobile terminal 9 (step 1317).

FIG. 14 is a flow chart showing the operation of the WWW server program 12A running on the content distribution server 1. WWW server program 12A
First, the connection from the content conversion server 2 is accepted (step 1401), and the URL and the command are received (step 1).
402), it is determined whether the instruction is a template acquisition request (step 1403). In the case of a template acquisition request, the template corresponding to the designated URL is returned (step 1404). If not, the content corresponding to the URL is returned (step 1405) and the connection with the content conversion server is disconnected (step 140).
6), repeat from step 1401.

FIG. 15 shows the content conversion program 22.
6 is a flowchart showing the operation of a content request reception program 401 that constitutes A. The content request reception program 401 first receives a connection from the mobile terminal 9 (step 1501), receives a URL and a command (step 1502), and determines whether the command is a template acquisition request (step 1503). In the case of a template input request, the URL is passed to the template management program 404 (step 1504) and the template is obtained (step 1505). Then, the template selection screen content is created from the obtained template (step 1506) and returned to the mobile terminal 9 (step 150).
After 7), repeat from step 1501.

If the command is not a template acquisition request, it is determined whether the command is a template specification (step 1508). If it is a template specification, the user ID, URL and template ID are passed to the deletion table management program 403 for registration. After (step 1509), the content creation program 405 is requested to create content (step 1510), the created content is obtained (step 1511), and the content is returned to the mobile terminal 9 (step 1507), and then the processing is repeated from step 1501.

If the instruction is not the template designation, it is judged whether the instruction is a deletion designation screen request (step 151).
2) If the command is a deletion designation screen request, request the deletion designation screen creation program 406 to create content (step 1513), obtain the created content (step 1514), and return it to the mobile terminal 9 (step 150).
After 7), repeat from step 1501. If the instruction is not a deletion designation screen request, it is determined whether it is a deletion designation command (step 1515). If it is a deletion designation, the deletion element information is passed to the deletion table management program 403 (step 1516) and registered, and then step 1510. To continue.

If the instruction is not the deletion designation, it is judged whether the instruction is a content acquisition request (step 1517),
If the command is a content acquisition request, step 1510.
To continue. If the command is not a content acquisition request, it is determined whether the command is the setting cancellation (step 151).
8) In the case of canceling the setting, the deletion table management program 404 is requested to cancel the registration (step 1519), and then the processing is continued from step 1510. In the case of other commands, the error display content is created (step 1520) and returned to the mobile terminal 9 (step 1507).
After that, the process is repeated from step 1501.

FIG. 16 shows the content conversion program 22.
6 is a flowchart showing the operation of a content acquisition program 402 that constitutes A. When the content acquisition program 402 acquires a URL from another program (step 1601), it passes the acquired URL to the cache management program 407 (step 1602), and determines whether the content exists in the content cache 22D (step 1603). ), If it exists, the content is returned (step 1604) and the process ends. If the content does not exist, the content distribution server 1 is connected (step 1605), the content is obtained (step 1606), registered in the cache management program 407 (step 1607), and the content is returned (step 1604). finish.

FIG. 17 shows the content conversion program 22.
9 is a flowchart showing the operation of a deletion table management program 403 which constitutes A. When the deletion table management program 403 receives the user ID, the URL, the search, registration, and discard commands, the template ID at the time of registration, and the deletion element (step 1701), the deletion table management program 403 determines whether the command is registration (step 1702). ), If the order is registered,
It is determined whether the template ID is "0" (step 1703). If the template ID is "0", the element deletion designation table 22B is searched by the user ID and the URL (step 170).
4) If the search result exists, it is replaced with the template ID of the result (step 1705). afterwards,
A set of user ID, URL, template ID, and delete element is registered (step 1706). Then step 1
Repeat from 701.

If the template ID is not "0",
In the element deletion designation table 22B, the template IDs of all the columns having the same URL as the received user ID are replaced with the received template IDs (step 17).
07). After this, it is judged whether or not there is a deletion element (step 1708), and if there is a deletion element, the process continues from step 1706. If not, the process continues from step 1701.

If the command is not registered, it is judged whether the command is discarded (step 1709). If the command is discarded,
The column having the designated user ID and URL is deleted from the element deletion designation table 22B (step 1710) and the process is repeated from step 1701. If the command is not discarded, the element deletion designation table 22B is searched for a column equal to the designated user ID and URL (step 1711), and the retrieval result is returned (step 1712), and step 170 is performed.
Repeat from 1.

FIG. 18 shows the contents conversion program 22.
6 is a flowchart showing the operation of a template management program 404 that constitutes A. When the template management program 404 obtains the URL and the template ID (step 1801), it analyzes the obtained URL and obtains the directory name (step 1802), and checks whether the template file exists in the corresponding directory on the storage device. A judgment is made (step 1803). If the template file exists, the content of the file corresponding to the template ID is returned (step 1804) and the process is repeated from step 1801. If the template file does not exist, a template acquisition request is issued to the content distribution server 1 (step 1805) and the template is acquired (step 1806). Then, the obtained template is stored in the directory on the storage device corresponding to the directory name obtained by analyzing the URL (step 1807), and the processing is executed from step 1804.

FIG. 19 shows the content conversion program 22.
6 is a flowchart showing the operation of a content creation program 405 that constitutes A. When the content creation program 405 obtains the user ID and URL from another program (step 1901), it passes the URL to the content obtainment program 402 (step 1902) and obtains the content (step 1903). Next, a search request is made to the deletion table management program 403 using the obtained user ID and URL (step 1904).

Then, it is judged whether or not the search result is empty.
(Step 1905) If it is not empty, it is first judged whether the template ID is “0” (Step 190
6) If the template ID is not "0", pass the template ID to the template management program 404.
(Step 1907), the template is obtained (Step 1908). Next, the template is applied to the obtained content (step 1909). Next, the element corresponding to the obtained deleted element ID is deleted from the content (step 1910), and the result is returned (step 191).
1), repeat from step 1901.

If the search result is empty, a delete setting button is added to the obtained content (step 1912) and the process proceeds to step 1911. FIG. 20 shows a deletion designation screen creation program 40 which constitutes the content conversion program 22A.
6 is a flowchart showing the operation of No. 6. The deletion designation screen creation program 406 accepts the connection from the mobile terminal 9 (step 2001), acquires the URL (step 2002), and URs the content acquisition program 402.
L is passed (step 2003), and the corresponding content is obtained (step 2004).

Next, the deletion table management program 403
The user ID and URL are passed to (step 2005), and the template ID is obtained (step 2006). It is determined whether the template ID is other than "0" (step 2
007), if the template ID is not “0”, the template ID is passed to the template management program 404 (step 2008) to obtain the template (step 2009).

Next, the template is applied to the obtained contents to obtain new contents (step 201).
0). Next, each element of this content is analyzed, an element ID is added to each element (step 2011), and then data "<input type = checkbox name = element ID>" is added before each element ( In step 2012), data for displaying buttons for execution and cancellation is added to the end of the content (step 2013), the created content is returned (step 2014), and the process is repeated from step 2001. If the template ID is “0”, the process continues from step 2011.

FIG. 21 shows the contents conversion program 22.
6 is a flowchart showing the operation of a cache management program 407 that constitutes A. When the cache management program 407 acquires the URL (step 2101),
It is determined whether or not the content corresponding to the obtained URL is stored in the content cache 22D (step 2102), and if it is stored, the content is returned (step 2103) and the process is repeated from step 2101. If it is not stored, NULL (empty element) is returned (step 2104) and the process is repeated from step 2101.

FIG. 22 is a flowchart showing the operation of the content display program running on the mobile phone 8 or the mobile terminal 9. The content display program connects to the content conversion server 2 (step 2201), obtains the initial screen, and displays it on the screen (step 2202).
Thereafter, a content acquisition command is transmitted to the content conversion server 2 (step 2203), the acquired content is displayed on the screen (step 2204) as instructed to press the button and specify the link, and thereafter, the processing is repeated from step 2203.

As described above, in the present embodiment, it is not necessary for the user when the contents created on the assumption that they are displayed on the screen of a relatively large size such as a personal computer are used in the portable terminal. It is possible to delete such information according to the instructions of individual users, reduce the number of packets to be communicated, reduce communication charges, and reduce the financial burden on users. Further, since it is not a method of deleting information by designating a specific tag like “packet allocation”, there is no fear of deleting useful information that is considered necessary for the user. Further, since the content conversion is performed by the content conversion server 2, even an existing content distribution system can be dealt with only by adding the content conversion server 2.

When the content distribution system is newly constructed, the conversion function of the content conversion server 2 may be installed in the distribution server. In addition, the cumulative total size of the deleted data is stored in association with the identifier of the mobile terminal user, and the fee corresponding to the deletion fee is charged according to the amount of deleted data. It becomes possible to cover the operation and maintenance costs of the conversion server 2. Further, by providing the content conversion server 2 with means for creating the element information designated by the user for deletion and the selected template information as the statistical information, and providing the statistical information created by this means to the content creation provider, the user can It can inform you whether you want such content or not, and can help improve the quality of the content.

[0049]

As described above, according to the present invention, when the portable terminal is to use the content created on the assumption that it is displayed on the screen of a relatively large size such as a personal computer, A user who uses the WWW content to refer to can refuse to receive unnecessary content according to his / her intention, and it becomes possible to reduce the number of packets to be communicated and the communication charge, thereby reducing the user's charge. Economic burden can be reduced.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing an embodiment of a content conversion system for mobile terminals according to the present invention.

FIG. 2 is a block configuration diagram of a content distribution server and a content conversion server according to the present invention.

FIG. 3 is a diagram showing an example of content stored in an external storage device on a content distribution server according to the present invention.

FIG. 4 is a functional block diagram of a content conversion program operating on the content conversion server according to the present invention.

FIG. 5 is a configuration diagram of an element deletion designation table for each user stored in an external storage device on the content conversion server according to the present invention.

FIG. 6 is a diagram showing where a template for content conversion is stored in the external storage device on the content conversion server according to the present invention.

FIG. 7 is a diagram showing an example of a template for content conversion stored in an external storage device on the content conversion server according to the present invention.

FIG. 8 is a diagram showing an example of a screen of a mobile terminal that uses the content conversion service according to the present invention.

FIG. 9 is a diagram showing an example of a screen displayed for a mobile terminal using the content conversion service according to the present invention to specify a template.

FIG. 10 shows a mobile terminal that uses the content conversion service according to the present invention, without designating a template or a deletion part,
It is a figure which shows the example of the display screen when a content is acquired from a content delivery server.

11 is a diagram showing an example of a screen displayed by the mobile terminal using the content conversion service according to the present invention to instruct an element to be deleted from the content displayed in FIG.

FIG. 12 is a diagram showing an example of a screen displayed by a mobile terminal using the content conversion service according to the present invention for instructing designation of element deletion and cancellation of designation of a conversion template.

FIG. 13 is a portable terminal, a content conversion program, and WWW when using the content conversion service according to the present invention.
It is the figure which showed the flow of the data between server programs.

FIG. 14 is a flowchart showing the operation of a WWW server program operating on the content distribution server according to the present invention.

FIG. 15 is a flowchart showing an operation of a content request receiving program which constitutes a content conversion program according to the present invention.

FIG. 16 is a flowchart showing an operation of a content acquisition program which constitutes a content conversion program according to the present invention.

FIG. 17 is a flowchart showing the operation of a deletion table management program that constitutes the content conversion program according to the present invention.

FIG. 18 is a flowchart showing the operation of a template management program that constitutes the content conversion program according to the present invention.

FIG. 19 is a flowchart showing the operation of the content creation program that constitutes the content conversion program according to the present invention.

FIG. 20 is a flowchart showing the operation of a deletion designation screen creation program that constitutes the content conversion program according to the present invention.

FIG. 21 is a flow chart showing the operation of the cache management program that constitutes the content conversion program according to the present invention.

FIG. 22 is a flowchart showing the operation of the content display program operating on the mobile terminal according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Content distribution server, 2 ... Content conversion server, 3 ... Network, 4 ... Internet, 5 ... Gateway, 6 ... Carrier network, 7 ... Wireless base station, 8 ... Mobile phone, 9 ... Mobile terminal, 11, 21 ... Terminal device, 12, 22 ... External storage device, 13, 23 ... Communication port, 12A ... WWW server program, 12B ... WW
W content, 12C ... conversion template, 22A ... content conversion program, 22B ... element deletion designation table, 22C ... template information, 22D ... content cache.

Claims (16)

[Claims] 1. A method of converting content provided from a content distribution server to a mobile terminal by a content conversion means arranged in a content distribution network and providing the converted content, wherein the mobile terminal deletes a partial element of the content. The first step of accepting the request and transmitting it to the content conversion means, the content of the deletion request received from the mobile terminal in the content conversion means is registered for each mobile terminal, and the content distribution request after registration is registered. A second step of deleting a partial element of the content corresponding to the content of the deletion request and distributing the content to the mobile terminal of the distribution request source. 2. In the first step, a deletion request is accepted by selecting a screen display template prepared for each mobile terminal, identification information of the template is transmitted to the content conversion means, and the second conversion is performed. In the step, the template identification information received from the mobile terminal is registered, and in response to the content distribution request after registration, the partial element not specified by the template corresponding to the registered template identification information is deleted and the mobile terminal of the distribution request source is deleted. The content providing method for mobile terminals according to claim 1, wherein the content is delivered to the mobile terminal. 3. The method according to claim 2, further comprising the step of receiving a request for further deleting the partial element for the content in which the partial element is deleted by using the template, and registering the request in the content conversion means. Content provision method for mobile terminals. 4. The content providing method for a mobile terminal according to claim 1, wherein the content conversion unit is arranged in the content distribution server. 5. The method according to claim 1, further comprising the step of accepting a cancellation request for canceling the content of the deletion request registered in the content conversion means, and canceling the content of the deletion request registered according to the cancellation request. 5. The content providing method for mobile terminals according to any one of 4 to 4. 6. The method according to claim 6, further comprising a step of temporarily storing the partial elements deleted by the content conversion means, and transmitting the deleted partial elements according to an instruction from the mobile terminal. The content providing method for mobile terminals according to any one of 1 to 5. 7. The method according to claim 1, further comprising the step of creating the content of the deletion request received from the mobile terminal or the statistical information of the deleted subelements according to the content of the deletion request and providing the statistical information to the content distributor. 7. The content providing method for mobile terminals according to any one of items 6 to 6. 8. The content providing method for a mobile terminal according to claim 1, further comprising a step of charging a user a fee according to the data amount of the deleted subelement. . 9. A system for converting and providing content distributed from a content distribution server to a mobile terminal by a content conversion means arranged in a content distribution network, wherein the mobile terminal is a partial element of the content. To the content conversion means, the content conversion means registers the content of the deletion request received from the mobile terminal for each mobile terminal, and the content distribution request after registration is registered. On the other hand, a content providing system for mobile terminals, comprising means for deleting a partial element of the content corresponding to the content of the registered deletion request and delivering the deleted partial element to the mobile terminal of the delivery request source. 10. The deletion request designating means accepts a content deletion request by selecting a template for screen display prepared in each mobile terminal, and means for transmitting identification information of the template to the content conversion means. The content conversion means registers the identification information of the template received from the mobile terminal, deletes the partial element not specified in the template corresponding to the registered template identification information, and distributes it to the mobile terminal of the distribution request source. The content providing system for mobile terminals according to claim 9, further comprising: 11. The content converting means comprises means for accepting a request for further deleting a partial element for content whose partial element has been deleted using the template, and registering the content in the content converting means. The content providing system for mobile terminals according to claim 10. 12. The content providing system for mobile terminals according to claim 9, wherein the content conversion unit is arranged in the content distribution server. 13. The content conversion means further comprises means for accepting a cancellation request for canceling the content of the deletion request from the mobile terminal, and canceling the content of the deletion request already registered according to the cancellation request. Claims 9 to 12
The content providing system for mobile terminals according to any one of 1. 14. The content conversion means comprises a temporary storage means for temporarily storing the deleted partial element, and transmits the deleted partial element in response to an instruction from a mobile terminal. Item 14. The content providing system for mobile terminals according to any one of items 9 to 13. 15. The method according to claim 9, further comprising means for creating the statistical information of the deletion request received from the portable terminal or the deleted partial element according to the content of the deletion request and providing the statistical information to the content distributor. 15. A content providing system for mobile terminals according to any one of items 14 to 14. 16. The content providing system for a mobile terminal according to claim 9, further comprising means for charging a user with a fee according to the data amount of the deleted subelement. .