JP2009169969A - Portable terminal and data sharing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To ensure the security of data to be provided to an application in an electronic device. <P>SOLUTION: An IP server W transmits an e-mail to a mobile machine MS. An activation instruction tag for instructing activation of a Java application and a delivery instruction tag for providing data are described in the e-mail. The mobile machine MS compares a transmitter address of the e-mail with permission information described in an ADF of the Java application instructed by the e-mail. The permission information is a transmitter address of e-mail for permitting activation of the Java application, providing of data or the like. Only when the comparison result is matched, the mobile machine MS activates the Java application according to the activation instruction tag described in the e-mail, and delivers data designated by the delivery instruction tag to the Java application. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electronic device that executes processing according to an application program.

  2. Description of the Related Art Conventionally, electronic devices such as PCs (personal computers) and mobile phones execute various processes in accordance with installed application programs (hereinafter abbreviated as “applications”), for example, word processing functions and table creation functions. Provide to users. Some electronic devices of this type can share data between different applications. For example, in the case of a PC, a function for editing a document or the like created by one application using another application is generalized.

  By the way, in recent years, with the development of networks such as the Internet, various types of data used for executing processing according to applications in electronic devices are downloaded from the network. However, a network without an identity guarantee function (hereinafter referred to as “open network”) such as the Internet is generally low in security, and data provided via such an open network is not necessarily reliable. Furthermore, it is not preferable from the viewpoint of security that data can be shared without any restriction between different applications installed in an electronic device.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to ensure the security of data provided to an application in an electronic device.

  In order to solve the problems described above, the present invention executes a storage unit storing a plurality of applications including at least a first application and a second application, and the application stored in the storage unit An execution unit; an acquisition unit that acquires data generated by execution of the first application by the execution unit; and a determination unit that determines whether or not the reliability of the data acquired by the acquisition unit is guaranteed. Control means for controlling the execution means so that the second application can use the data only when the determination means determines that the reliability of the data is guaranteed. Provide electronic equipment.

  According to this electronic device, the data generated by the execution of the first application is acquired, and the data can be used by the second application only when the reliability of the acquired data is guaranteed. Become.

  The present invention also provides data sharing between the first application and the second application in an electronic device having storage means storing a plurality of applications including at least a first application and a second application. And a second step of acquiring data generated by execution of the first application in the first step, and a second step in which the electronic device executes the first application. The third step for determining whether or not the reliability of the data acquired in the second step is guaranteed, and the reliability of the data is guaranteed in the third step. Only when it is determined, the process using the data is performed according to the second application. It provides data sharing method and a fourth step of executing.

  According to another aspect of the present invention, there is provided a computer storing a plurality of applications including at least a first application and a second application, by executing means for executing the application and execution of the first application by the execution means. Determining means for acquiring the acquired data, determining means for determining whether or not the reliability of the data acquired by the acquiring means is guaranteed, and determining that the reliability of the data is guaranteed by the determining means A program for causing the second application to function as control means for controlling the execution means so as to allow the use of the data by the second application is provided only when the second application is used. This program may be transmitted / received via a network, or may be stored in a storage medium such as a CD-ROM.

It is a block diagram which shows the structure of the communication system concerning 1st Embodiment. It is a figure which shows the memory content of application DB13 concerning the embodiment. It is a figure which shows the example of an e-mail source produced | generated by the IP server W concerning the embodiment. It is a figure which shows the structure of the IP server W concerning the embodiment. It is a figure which shows the memory content of user management DB14 concerning the embodiment. It is a figure which shows the structure of the mobile apparatus MS concerning the embodiment. It is a figure which shows the memory content of the non-volatile memory 214 of the mobile station MS concerning the embodiment. It is a figure which shows the memory content of application management table TBL1 concerning the embodiment. It is a figure for demonstrating the execution environment of a Java application in the mobile station MS concerning the embodiment. It is a figure which shows transmission / reception of the data performed in the communication system concerning the embodiment. It is a figure which shows an example of the image displayed on the liquid crystal display part 24 of the mobile station MS concerning the embodiment. It is a figure which shows the process performed in CPU211 of the mobile station MS concerning the embodiment. It is a figure which shows an example of the image displayed on the liquid crystal display part 24 of the mobile station MS concerning the embodiment. It is a figure which shows the process performed in CPU211 of the mobile station MS concerning the embodiment. It is a figure which shows the process performed in CPU211 of the mobile station MS concerning the embodiment. It is a figure which shows an example of the source of the HTML data corresponding to the data provision page which the IP server W concerning 2nd Embodiment holds. It is a figure which shows an example of the image displayed on the liquid crystal display part 24 of the mobile station MS concerning the embodiment. It is a figure which shows the process performed in CPU211 of the mobile station MS concerning the embodiment. It is a figure which shows the process performed in CPU211 of the mobile station MS concerning the embodiment. It is a figure which shows the process performed in CPU211 of the mobile station MS concerning 3rd Embodiment. It is a figure which shows the process performed in CPU211 of the mobile station MS concerning the embodiment. It is a figure which shows the structure of the mobile apparatus MS concerning the modification 1. It is a figure which shows the structure of the module 27 concerning the modification.

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

[First Embodiment]
[1. Configuration of First Embodiment]
(A. Overall system configuration)
FIG. 1 is a block diagram showing a configuration of a communication system according to the present embodiment.
As shown in the figure, the communication system according to this embodiment includes a plurality of mobile stations MS, a plurality of base stations BS, a mobile packet communication network MPN, a gateway server GWS, the Internet INET, and a plurality of IP (Information). Provider) server W. In FIG. 1, only a predetermined mobile device, base station, and IP server are shown among the mobile device MS, base station BS, and IP server W accommodated in the communication system in order to prevent the drawing from becoming complicated. Has been.

  The IP server W has a WWW (World Wide Web) server program, and transmits an HTTP (Hypertext Transfer Protocol) message (hereinafter referred to as “GET request”) using a GET method from the mobile station MS to the mobile packet communication network. When received via the MPN and the Internet INET, the resource corresponding to the GET request is returned to the mobile station MS.

  Examples of resources possessed by the IP server W include data in HTML (Hyper Text Markup Language) format (hereinafter referred to as “HTML data”) corresponding to various pages and a Java application described in the Java programming language. Also, the Java application that the IP server W has as a resource is an ADF (Application Descriptor File) that is a Jar file having a data entity of the Java application and a text file in which a URI indicating the application name and the storage location of the Jar file is described And stored in the application database 13 (hereinafter, “database” is abbreviated as “DB”).

  Hereinafter, in the present specification, the ADF and the Jar file are collectively referred to as “Java application” unless it is particularly necessary to distinguish them. In the present embodiment, both the ADF and Jar file of the Java application are stored in the IP server W. However, the ADF and Jar file of the Java application may be stored in different servers.

  FIG. 2 is a diagram illustrating the contents stored in the application DB 13. As shown in the figure, the application DB 13 according to the present embodiment stores the ADF and Jar file of each Java application held as a resource by the IP server W, as well as a URI indicating the storage location of each file. ing.

  In addition, the IP server W has a function of providing the mobile device MS with various data used when executing a Java application held by the server as a resource. In order to realize such a function, the IP server W has a mailer, and generates and transmits an electronic mail describing data to be provided to the mobile device MS.

  FIG. 3 is a diagram illustrating an example of an e-mail source generated by the IP server W. In the figure, an example of electronic mail described in a format according to “MIME” is shown. As shown in the figure, in the electronic mail generated by the IP server W, a header (details are omitted in the figure) including the transmission source address and the destination mail address of the electronic mail is described.

  In this e-mail, a character string “<MOVE> <param>” http: //www.○○.co.jp/△△a ”<// param> </ MOVE>” is described. Yes. Here, in this character string, “<MOVE> </ MOVE>” is a tag for instructing the mobile device MS to start a Java application (hereinafter referred to as “start command tag”), and application designation information ( In the case shown in the figure, a parameter tag (that is, “<param> </ param>”) having “http://www.XX.co.jp/ΔΔa”) as an argument is specified (see RFC1896). ). Here, the application designation information is information indicating a Java application to be activated in the mobile station MS, and in this embodiment, has a URI indicating a download source of the ADF of the Java application as an element.

  Of course, information other than the URI indicating the ADF download source (for example, a URI indicating the Jar file download source) can be used as the application designation information. However, when using other information, it is necessary to be able to uniquely identify the Java application based on the information.

  Also, as shown in the figure, the e-mail generated by the IP server W describes a character string “<IMPORT> <param>” OO ”</ param> </ IMPORT>. In the character string, “<IMPORT> </ IMPORT>” is a tag for providing data to the mobile station MS (hereinafter referred to as “delivery instruction tag”), and data designation information (in the case shown in FIG. “○○”) is specified as a parameter tag. The data designation information is information indicating data to be provided to the mobile device MS, and the data designated by the information is provided to the mobile device MS.

Here, the following two types of data designation information exist.
(I.DATA)
This “DATA” is information indicating the substance of data to be provided to the mobile station MS. For example, when the data designation information “DATA \ 12345 \” is designated by the parameter tag of the delivery command tag, the data “12345” is provided to the mobile station MS.

(Ii. ACQUISITION)
This “ACQUISITION” is information indicating data to be provided to the mobile device MS (for example, a URI indicating the storage location of the data). When this “ACQUISITION” is specified by the parameter tag in the delivery instruction tag, the data entity is acquired based on the information defined by the “ACQUISITION”.

  Note that the content of data provided by the IP server W to the mobile station MS using the delivery command tag is arbitrary. For example, when the Java application is a game or the like, the score acquired by the user in the game or saved data may be used.

  In addition, the proper use of “DATA” and “ACQUISITION” may follow any standard. For example, a threshold may be set for the amount of data to be provided to the mobile station MS, and if this threshold is exceeded, “ACQUISITION” may be used, and if not, “DATA” may be used. . In this way, since an email with a large amount of data is not transmitted, waste of communication capacity can be prevented, and even a mobile device MS with a small reception capacity can reliably acquire data. Is possible. Further, in FIG. 3, the e-mail described in the format according to “MIME” has been described as an example, but the present invention can naturally be implemented also in HTML mail. In this case, a startup command tag and a delivery command tag are defined as new HTML tags, and application specification information and data specification information may be specified in these tags (for example, “<MOVE” http : //www.○○.co.jp/△△a ”> </ MOVE>”).

  Next, the mobile packet communication network MPN is a communication network for providing a packet communication service to the mobile station MS, and includes a plurality of base stations BS and gateway servers GWS, as well as a packet subscriber processing device (not shown). Etc.

  The gateway server GWS is a computer system provided in a mobile packet gateway relay switching center that interconnects the Internet INET and the mobile packet communication network MPN. This gateway server GWS converts the protocol of the received data into a protocol according to the network that is the transfer destination of the data and transfers it. In this embodiment, data communication between the mobile packet communication network MPN and the Internet INET is realized by the function of the gateway server GWS.

  Further, the gateway server GWS has a function as a mail server. When an e-mail addressed to the mobile device MS accommodated in the mobile packet communication network MPN is received, the received mail is distributed (pushed) to the corresponding mobile device MS. To deliver. On the other hand, when an e-mail addressed to a computer system (for example, IP server W) connected to the Internet INET is received from the mobile device MS accommodated in the mobile packet communication network MPN, the gateway server GWS Is transferred to the Internet INET.

  The mobile device MS is a portable electronic device such as a mobile phone, and is capable of data communication via the mobile packet communication network MPN, and performs a voice call via a mobile phone network (not shown). This mobile device MS is equipped with a WWW browser and can display an image obtained by interpreting HTML data received from the IP server W.

In addition, the mobile device MS according to the present embodiment is equipped with a mailer, and realizes the following two functions according to the received electronic mail.
(I. Start function)
This activation function is a function for activating a Java application corresponding to the application designation information designated by the parameter tag in the tag when the activation instruction tag is described in the received electronic mail.

(Ii. Cooperation function)
This linkage function uses the data corresponding to the data specification information specified by the parameter tag in the tag when the delivery instruction tag is described in the received e-mail when the Java application is executed. It is. The mobile device MS according to the present embodiment performs data sharing between the mailer and the Java application (this data sharing is referred to as “cooperation” in the present specification) by such a function. In the present embodiment, the Java application that shares data with the mailer is a Java application that is activated by the activation instruction tag.

  Here, when there is no restriction when starting the Java application in the mobile device MS or when performing cooperation, for example, the Java in the mobile device MS is sent by an email sent by a malicious third party. There is a possibility that various information input by the user when the application is started and the Java application is executed is transmitted to the network based on data corresponding to the data designation information in the e-mail.

  Therefore, in this embodiment, the following two pieces of information are described in the ADF of each Java application, and the mobile station MS has a function of confirming the reliability of the received e-mail based on these pieces of information. Have.

(I. Startup permission information)
This activation permission information is information used as a criterion for determining whether or not to permit the activation of a Java application based on the received email, and the sender of the email that is permitted to activate the Java application. Address is an element. In the ADF of the Java application that permits activation by e-mail, at least one source address of an e-mail that permits activation of the Java application is described as activation permission information. The activation permission information is described in the ADF by the Java application provider (IP). When the activation instruction tag is described in the received e-mail, the mobile device MS transmits the e-mail transmission source address, the activation permission information described in the ADF of the Java application to be activated by the e-mail, , And start the Java application only when the two match.

(Ii. Cooperation permission information)
This cooperation permission information is information serving as a determination criterion for determining whether or not cooperation is permitted when a delivery command tag is described in the received electronic mail. Similar to the activation permission information, the cooperation permission information includes an e-mail source address that is permitted to be linked with the Java application as an element. In the ADF of the Java application that permits cooperation, at least one e-mail transmission source address that permits cooperation with the Java application is described as IP as cooperation permission information. When a delivery command tag is described in the received e-mail, the mobile device MS compares the source address of the e-mail with the cooperation permission information described in the ADF of the Java application specified by the e-mail. To do. And only when both information corresponds, the mobile station MS permits use of the data indicated by the data designation information designated by the parameter tag in the delivery command tag described in the e-mail.

(B. Configuration of IP server W)
FIG. 4 is a diagram showing the configuration of the IP server W according to the present embodiment. As shown in the figure, the IP server W includes a system control unit 11, a communication unit 12, the application DB 13, the user management DB 14, and the interface unit 15 (hereinafter referred to as “I / F”). And an operation terminal 16.

  The communication unit 12 relays data exchange between the system control unit 11 and the Internet INET, sends data received via the Internet INET to the system control unit 11, and data sent from the system control unit 11 Is sent to the Internet INET.

  The system control unit 11 includes a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM), a hard disk, and the like, and controls each unit of the IP server W. The ROM stores various control information and control programs for controlling each part of the IP server W. In addition to storing resources such as HTML data corresponding to various pages, the hard disk stores the above-described WWW server program and mailer. The CPU executes various programs stored in the ROM or the hard disk. The RAM is used as a work area.

  The user management DB 14 stores information for managing the user of the mobile device MS that has downloaded the Java application from the IP server W. As shown in FIG. 5, in the user management DB 14, for each Java application stored in the application DB 13, a URI indicating the storage location of the ADF of the Java application and the mail of the mobile station MS that has downloaded the Java application. Addresses are stored in association with each other.

  Next, the interface unit 15 mediates data exchange between the system control unit 11 and the operation terminal 16. The operation terminal 16 is a device such as a PC connected to the IP server W, and includes a keyboard, a mouse, a display unit, and the like (all not shown). The operation terminal 16 is used by an IP operator to specify a Java application to be activated in the mobile device MS and to input data to be provided to the mobile device MS.

  More specifically, first, the operator operates the operation terminal 16 to specify a Java application to be started up in the mobile device MS, and the data designation information corresponding to the data to be provided to the mobile device MS. When input is made, the system control unit 11 reads the mail address of each mobile device MS that has downloaded the specified Java application from the user management DB 14. Then, the system control unit 11 reads the mailer stored in the hard disk, generates an electronic mail addressed to each mail address, and transmits it. At this time, the system control unit 11 uses a start instruction tag whose application specifying information is a URI indicating the storage location of the ADF of the specified Java application, and input data specifying information (that is, “DATA” or “ACQUISITION”). And a delivery instruction tag having “” are generated and described in the e-mail (see FIG. 3).

(C. Configuration of mobile station MS)
FIG. 6 is a diagram illustrating a configuration of the mobile device MS. As shown in the figure, the mobile station MS includes a control unit 21, a transmission / reception unit 22, an instruction input unit 23, a liquid crystal display unit 24, and a data bus 25 that mediates data exchange between these elements.

  The transmission / reception unit 22 performs radio communication with the base station BS of the mobile packet communication network MPN under the control of the control unit 21. The liquid crystal display unit 24 includes a display device such as a liquid crystal panel, and displays various information under the control of the control unit 21. The instruction input unit 23 includes various buttons such as PB (push button) and a cursor key, and supplies an operation signal corresponding to the input operation to the control unit 21 when an input operation is performed by the user.

The control unit 21 includes a CPU 211, a ROM 212, a RAM 213, a nonvolatile memory 214, and the like, and controls each unit of the mobile device MS.
The CPU 211 controls each unit of the mobile device MS according to an application stored in the ROM 212 or the nonvolatile memory 214. The RAM 213 is used as a work area, and temporarily stores various applications executed by the CPU 211 and various data used when executing the applications.

  The ROM 212 stores various applications executed by the CPU 211 in addition to various control information and control programs. The application stored in the ROM 212 is already written in the ROM 212 when the mobile device MS is shipped. Examples of applications stored in the ROM 212 include the above-described WWW browser and mailer. Hereinafter, in this specification, an application stored in the ROM 212 is described as a “native application” as necessary, and is distinguished from a Java application downloaded from the IP server W. The ROM 212 stores software for building an execution environment for Java applications.

  As shown in FIG. 7, the nonvolatile memory 214 is provided with a plurality of application storage memories 2141-k (k = 1, 2,..., N), a table storage memory 2142, a received mail storage memory 2143, and the like. . Here, the received mail storage memory 2143 is a memory for storing an electronic mail received by the mobile device MS. The application storage memory 2141-k is a memory for storing a Java application downloaded from the IP server W. The application storage memory 2141-k further includes an application storage area 2141-k1 and an application data storage area 2141-k2.

  The application storage area 2141-k1 is an area for storing Java applications (ADF and Jar files) downloaded from the IP server W. The application data storage area 2141-k2 is a data storage area for a Java application, and stores data generated when the Java application is executed. For example, when the Java application is a game, the application data storage area 2141-k2 stores points and save data acquired by the user in the game.

  The application data storage area 2141-k2 is controlled so that it cannot be accessed from other than the Java application stored in the application storage area 2141-k1 corresponding to the application data storage area 2141-k2.

  Next, the table storage memory 2142 stores an application management table TBL1 for managing Java applications downloaded from the IP server W. As shown in FIG. 8, in the application management table TBL1, the application storage memory 2141-k in which the Java application is stored in association with the URI indicating the download source of the ADF of the Java application downloaded from the IP server W. The memory address is stored.

  FIG. 9 is a diagram for explaining an execution environment of a Java application in the mobile device MS. As shown in the figure, the mobile station MS includes a J2ME (KVM (K Virtual Machine) as a software for constructing a Java application execution environment and a CLDC (Connected Limited Device Configuration) as a configuration. Java 2 Micro Edition).

  KVM is a Java Virtual Machine (JVM) redesigned for small electronic devices, and the byte code, which is the Java application executable file format, can be interpreted / executed by the CPU 211 of the mobile device MS via the operation system OS. Convert to instruction code. The CLDC class library is a class library for CLDC.

  The extension library is a class library for providing functions specialized for mobile phones based on CLDC. This extended library includes, for example, APIs (Application Program Interfaces) for user I / F, networking, and data storage. The API for data storage is data for the application data storage area 2141-k2. Supports writing and reading.

  JAM (Java Application Manager) has functions of downloading Java applications and managing Java applications installed in the nonvolatile memory 214 under the control of the OS. For example, JAM has a function for installing and deleting a Java application, a function for displaying a list of Java applications stored in the non-volatile memory 214, a function for performing execution management (startup, forced termination, etc.) of a Java application, and the like. is doing.

By using this JAM function, the CPU 211 of the mobile device MS allows the sender email address of the received email and the start permission information described in the ADF of the Java application designated by the email or the linkage permission. Compare the information and confirm the reliability of the e-mail.
Further, as shown in the figure, native applications such as a telephone directory application and a WWW browser directly operate under the control of the OS.

[2. Operation of First Embodiment]
Hereinafter, the operation of this embodiment will be described. In the following, the operation of the present embodiment will be described in the following order. That is, (A) an operation when downloading a Java application, and (B) an operation when providing various data to the Java application.

(A. Operation when downloading Java applications)
Hereinafter, the operation at the time of application download will be described with reference to the data sequence shown in FIG. In the following description, in order to make the description more specific, the storage contents of the application DB 13 are the same as those in FIG. 2 and the mail address of the mobile device MS is “■■@■■.ne. ".jp" will be described.

  First, the user operates the instruction input unit 23 of the mobile device MS to activate the WWW browser. Then, the CPU 211 reads the WWW browser from the ROM 212 in accordance with the operation signal supplied from the instruction input unit 23, and performs packet registration with the packet subscriber processing device in the mobile packet communication network MPN described above. This packet registration is a registration procedure for the mobile station MS to exchange packets with the mobile packet communication network MPN.

  Thereafter, the user inputs to the instruction input unit 23 of the mobile device MS, for example, designating a URI indicating a page for downloading a Java application held by the IP server W (hereinafter referred to as “download page”). . Then, the CPU 211 of the mobile device MS sends a GET request D1 including the URI to the mobile packet communication network MPN via the transmission / reception unit 22. In this way, the GET request D1 sent to the mobile packet communication network MPN by the mobile device MS is thereafter received by the gateway server GWS and transferred to the Internet INET.

  When the system control unit 11 of the IP server W receives the GET request D1 via the communication unit 12, the HTML data D2 corresponding to the URI included in the GET request D1 (in this case, on the download page) according to the WWW server program. Reply to the Internet INET. As a result, the HTML data D2 is received by the gateway server GWS and transferred to the mobile packet communication network MPN.

  When the CPU 211 of the mobile device MS receives the HTML data D2, the CPU 211 stores the HTML data D2 in the RAM 213 and causes the liquid crystal display unit 24 to display an image based on the HTML data D2. FIG. 11 is a diagram illustrating an example of an image displayed on the liquid crystal display unit 24 of the mobile station MS that has received the HTML data D2. As shown in the figure, on the liquid crystal display unit 24 of the mobile device MS, the mobile device MS selects a Java application that can be downloaded from the IP server W (that is, all application names stored in the application DB 13). A box for inputting an e-mail address and a “Send” button are displayed together with a list for the purpose. Here, each Java application displayed in a list on the liquid crystal display unit 24 is associated with a URI indicating the storage location of the ADF of the Java application.

  In this state, the user performs an input operation to select the Java application to be downloaded, inputs his / her mail address “■■@■■.ne.jp”, and selects the “Send” button. Perform an input operation to that effect. Then, the CPU 211 of the mobile device MS responds to the GET request D3 including the URI of the ADF associated with the Java application selected from the list by the user, and the mail address “■■@■■.ne.jp” input by the user. "Is added to the mobile packet communication network MPN.

  This GET request D3 is eventually transferred to the Internet INET by the gateway server GWS and received by the communication unit 12 of the IP server W. In this way, when the communication unit 12 receives the GET request D3, the system control unit 11 of the IP server W sends the mail address “■■@■■.ne.jp” added to the GET request D3. To extract. Then, the system control unit 11 uses the extracted mail address “■■@■■.ne.jp” as the URI (that is, the Java application selected by the user) included in the GET request D3 of the user management DB 14. It is stored in a field corresponding to the URI indicating the storage location of the ADF. In this way, when the mail address “■■@■■.ne.jp” added to the GET request D3 is stored in the user management DB 14, the system control unit 11 stores the URI included in the GET request D3. The corresponding ADF is read from the application DB 13 and transmitted as data D4 to the Internet INET.

  On the other hand, when receiving the data D4 sent from the IP server W, the CPU 211 of the mobile device MS executes the processing shown in FIG. 12 according to JAM. In this process, the CPU 211 extracts ADF from the received data D4 (step Sa1) and stores the extracted ADF in the application storage area 2141-k1 (step Sa2). Then, the application management table TBL1 is updated by associating the memory address of the application storage area 2141-k1 storing the ADF with the URI indicating the download source of the ADF and storing it in the application management table TBL1 ( Step Sa3).

  Next, the CPU 211 searches the file contents of the ADF and obtains a URI indicating the storage location of the Jar file (step Sa4). When the URI of the Jar file is acquired in this way, the CPU 211 uses the function of the WWW browser to send a GET request D5 including the URI to the mobile packet communication network MPN (step Sa5). When the GET request D5 is sent in this way, the CPU 211 determines whether or not a response to the GET request D5 has been received, and repeats the processing of the same step until a response is received (step Sa6).

  On the other hand, the GET request D5 sent from the mobile device MS is received by the gateway server GWS and transferred to the Internet INET. When receiving the GET request D5, the system control unit 11 of the IP server W reads out from the application DB 13 a Jar file corresponding to the URI (that is, the URI indicating the storage location of the Jar file) included in the GET request D5. Then, the system control unit 11 sends this Jar file as data D6 to the Internet INET.

  Next, when receiving the data D6 sent from the IP server W, the CPU 211 of the mobile device MS determines “Yes” in step Sa6 and extracts a Jar file from the data D6 (step Sa7). Then, the CPU 211 stores the extracted Jar file in the application storage area 2141-k1 (step Sa8), and displays, for example, a character string such as “Download finished” on the liquid crystal display unit 24 (step Sa9). ), The process is terminated.

(B. Operation when providing various data to Java applications)
Next, an operation when the IP server W provides the mobile device MS with data to be used when executing the Java application by sending an e-mail will be described. In the following description, the storage contents of the application DB 13 and the user management DB 14 of the IP server W are the same as those shown in FIGS. 2 and 5, and the storage contents of the application management table TBL1 of the mobile station MS are the same as those shown in FIG. It shall be the same. In addition, it is assumed that the mail address of the IP server W that is the transmission source of the e-mail is “XXX @ XXX.

  First, the IP operator operates the operation terminal 16 to provide various data to the mobile device MS that has downloaded the “Java application a”. As a result, a list of Java applications stored in the application DB 13 is displayed on a display unit (not shown) of the operation terminal 16. In this state, for example, when the operator performs an input operation for designating “Java application a”, the system control unit 11 of the IP server W executes the following e-mail transmission process.

(I. Step 1)
The system control unit 11 stores all mail addresses (ie, “■■@■■.ne.jp”, “xxx@xxx.ne.jp” stored in association with the URI of “Java application a”. jp "etc.) is read from the user management DB 14 and stored in the RAM.

(Ii. Step 2)
The system control unit 11 reads out the URI “http: //www.○.co.jp/ΔΔa” corresponding to the ADF of “Java application a” from the user management DB 14 and stores it in the RAM.

(Iii. Step 3)
The system control unit 11 starts the operation command tag (that is, <MOVE><param> ”having the URI“ http://www.xxx.co.jp//ΔΔa ”read out in step 2 as application designation information. An electronic mail (see FIG. 5) in which http://www.XX.co.jp/ΔΔa “</ param></MOVE>) is generated is generated. At this time, the system control unit 11 sets all the mail addresses stored in the RAM in step 1 as the destination mail address of the electronic mail. As a result, the destination of the e-mail is all mobile devices MS that have downloaded the Java application corresponding to the URI “http://www.XXX.co.jp/ΔΔa”.

(Iv. Step 4)
The system control unit 11 transmits to the operation terminal 16 a display command for instructing the operator to input data to be transmitted to the mobile device MS. As a result, an image prompting input of data to be transmitted to the mobile device MS is displayed on the operation terminal 16. Based on this display, the operator needs to input data designation information to be designated by the parameter tag in the delivery command tag. When the operator performs an input operation according to this display, the operation terminal 16 transmits the data designation information input by the operator to the system control unit 11. In this case, whether the operator uses “DATA” or “ACQUISITION” is arbitrary.

(V. Step 5)
The system control unit 11 describes a delivery command tag having a parameter tag specifying the data specifying information transmitted from the operation terminal 16 in the e-mail. As a result, for example, an e-mail having a source as shown in FIG. 3 is generated.

(Vi. Step 6)
The system control unit 11 sends the electronic mail generated in this way to the Internet INET.

  Thus, the e-mail transmitted from the IP server W is thereafter received by the gateway server GWS and distributed (push distribution) to the mobile device MS. Note that the operation when the gateway server GWS pushes electronic mail to the mobile device MS is the same as the conventional one, and the description thereof is omitted.

  On the other hand, when the CPU 211 of the mobile station MS receives the electronic mail pushed from the gateway server GWS, the received electronic mail is stored in the received mail storage memory 2143 of the nonvolatile memory 214 according to the mailer. In this state, the user performs an input operation to display the received mail on the instruction input unit 23 of the mobile device MS. Then, the CPU 211 of the mobile device MS displays a list of received mails stored in the received mail storage memory 2143. Then, when the user performs an input operation for displaying an e-mail with the IP server W as a transmission source on the instruction input unit 23, the CPU 211 reads out the e-mail in which the activation command is described from the received mail storage memory 2143. Display on the liquid crystal display unit 24.

  FIG. 13 is a diagram illustrating an example of an image displayed on the liquid crystal display unit 24 of the mobile device MS at this time. As shown in the figure, at this time, the liquid crystal display unit 24 of the mobile device MS, for example, “This email contains data that can be used in your downloaded Java application. When you select the button, you will be able to use the data. A button “Import” will be displayed along with a character string such as “Available.

  In a state where this image is displayed, the user performs an input operation for selecting the “import” button to the instruction input unit 23 of the mobile device MS. Then, the processing shown in FIGS. 14 and 15 is executed in the CPU 211 of the mobile device MS. Here, in the figure, “mailer”, “JAM”, and “Java application” are functions generated by the CPU 211 of the mobile station MS executing the subroutines of these programs (at least one process or Thread).

  In the following, in order to facilitate the understanding of the explanation, these “mailer”, “JAM”, and “Java application” are formally the subject of each process, but in reality, the CPU 211 is used. It goes without saying that the processing is performed by executing the application. The process shown in the figure is merely a process performed by executing a subroutine of each program. In addition to the process shown in the figure, a process according to the main routine is also executed.

  In this process, first, the mailer sends the source address “XX@XXX.ne.jp” of the e-mail and the application specification information (ie, “Java application” specified by the parameter tag in the start command tag). A start command to which the ADF URI “http: //www.○.co.jp/ΔΔa”) of “a” is added is sent to the JAM (step Sb1). When this activation command is sent from the mailer, the JAM extracts the transmission source mail address “XX@XXX.ne.jp” added to the activation command and stores it in the RAM 213 and the activation command. The application management table TBL1 is searched using the application designation information “http://www.XX.co.jp/ΔΔa” added to the command as a search key (step Sb2) and associated with the URI. The stored memory address “# 0001” is read out and stored in the RAM 213 (step Sb3).

  Next, the JAM reads the ADF of the Java application from the application storage area 2141-k1 corresponding to the memory address “# 0001” stored in the RAM 213 (step Sb4), and extracts the activation permission information possessed by the ADF ( Step Sb5). The JAM then compares the extracted permission information with the sender email address “XX@XXX.ne.jp” added to the activation command, and determines whether or not the two information match ( Step Sb6). At this time, JAM compares the server name “@ xxx.ne.jp” of the source address “xxx@xxx.ne.jp” of the e-mail with the activation permission information, and both information match. It is determined whether or not to do.

  As a result of this determination, when it is determined as “No” (that is, when “@ xxx.ne.jp” does not exist in the activation permission information), the JAM does not activate “Java application a”, “ A character string such as “A Java application cannot be started from this e-mail because security cannot be secured” is displayed on the liquid crystal display unit 24 (step Sb7), and the process returns to the main routine.

  On the other hand, if it is determined as “Yes” (that is, “@ xxx.ne.jp” exists in the activation permission information), JAM is “Security is secured. “Yes” and “No” are displayed on the liquid crystal display unit 24 together with a character string such as “Do you want to do?” (Step Sb8). In this way, when the image is displayed, the JAM enters a state in which it is determined whether or not the button selected by the user is “Yes” (step Sb9). When the user performs an input operation to select the “No” button, JAM determines “No” in step Sb9 and returns to the main routine without starting “Java application a”. .

  On the other hand, when the user selects the “Yes” button, JAM determines “Yes” in step Sb9, and a request for confirming whether or not a delivery command tag exists in the e-mail (hereinafter, “existence confirmation request”). Is sent to the mailer (step Sb10). When this presence confirmation request is sent, the mailer searches the electronic mail (step Sb11), and determines whether or not a delivery command tag is described in the electronic mail (step Sb12). If it is determined “No” in step Sb12, the mailer sends a non-existence notification to the JAM (step Sb13).

  If it is determined as “Yes” in step Sb12, the mailer sends a presence notification to the JAM (step Sb14). At this time, the mailer adds the data designation information designated by the parameter tag in the delivery instruction tag and the transmission source address “xxx@xxx.ne.jp” of the electronic mail to the presence notification.

  The JAM determines whether or not the notification sent from the mailer is a presence notification (step Sb15). If the result of this determination is “No”, JAM activates “Java application a” according to the Jar file in the application storage area 2141-k1 corresponding to the memory address “# 0001” stored in the RAM 213. (Step Sb21), the process returns to the main routine.

  On the other hand, if it is determined as “Yes” as a result of the determination in step Sb15, the JAM extracts the transmission source mail address “XX@XXX.ne.jp” added to the presence notification ( In step Sb16), the cooperation permission information described in the ADF read in step Sb4 is extracted (step Sb17). Then, the JAM determines whether or not the permission information matches the server name of the sender email address “XXX@XXX.ne.jp” (step Sb18). Note that the determination method at this time is the same as the determination related to the activation permission information described above, and a description thereof will be omitted.

  If the result of determination in step Sb18 is “No”, the JAM reads the Jar file from the memory address “# 0001” stored in the RAM 213 and starts “Java application a” according to the Jar file ( Step Sb21), the process returns to the main routine. On the other hand, if it is determined as “Yes” as a result of this determination, the JAM displays a character such as “Reliable data exists for the liquid crystal display unit 24. Do you use data?” Two buttons of “Yes” and “No” are displayed together with the columns (step Sb19). Then, the JAM enters a state in which it is determined whether or not the “Yes” button has been selected (step Sb20).

  In this state, when the user performs an input operation to select the “No” button, JAM determines “No” in step Sb20 and reads the Jar file from the memory address “# 0001” stored in the RAM 213. Then, “Java application a” is started in accordance with the Jar file (step Sb21), and the process returns to the main routine. On the other hand, when the user performs an input operation for selecting the “Yes” button on the instruction input unit 23, the JAM extracts the data designation information added to the presence notification (step Sb22) and extracts it. It is determined whether or not the data designation information is “DATA” (step Sb23).

  If it is determined as “Yes” as a result of the determination in step Sb23, the JAM reads the Jar file from the memory address “# 0001” stored in the RAM 213, and starts “Java application a” according to the Jar file (step Sb24). ). Then, the JAM hands over the data entity that is the argument of “DATA” to the started “Java application a” (step Sb25), and returns to the main routine. As a result, the data entity that is the argument of “DATA” is stored in the application data storage area 2141-k2 and can be used by “Java application a”, so that data can be shared with the mailer. Is made.

  On the other hand, if “No” is determined in step Sb23, the JAM reads the Jar file from the memory address “# 0001” stored in the RAM 213, and starts “Java application a” according to the Jar file (step Sb26). ). The JAM then accesses the URI that is the argument of “ACQUISITION” for “Java application a”, sends a command to acquire data (step Sb27), and returns to the main routine.

  Upon receiving this instruction, “Java application a” sends a GET request including the URI to the mobile packet communication network MPN. When the data sent back via the mobile packet communication network MPN is received by the transmission / reception unit 22 in response to this GET request, the Java application “a” returns to the application data storage area 2141-k2 corresponding to itself. Store the data that has been sent. As a result, the data can be used by the “Java application a”.

  As described above, the mobile station MS according to the present embodiment activates the Java application according to the activation instruction tag described in the received e-mail, and the mailer and the Java application according to the delivery instruction tag described in the e-mail. It is the structure which performs cooperation between. For this reason, the IP activates a Java application in the mobile device MS and provides various data used in the Java application in the mobile device MS by simply sending an e-mail to the mobile device MS. It becomes possible.

  For example, by sending an e-mail from the IP server W, it is possible to upgrade the version of the Java application downloaded by the mobile station MS. Further, if the Java application provided by the IP server is, for example, a game, it is possible to provide new character data or the like simply by sending an e-mail. Furthermore, data that requires real-time properties such as weather forecasts can be provided to the mobile device MS simply by distributing an e-mail. It goes without saying that such an effect is particularly effective in a mobile device MS such as a mobile phone in which a limit is imposed on the amount of data of an application that can be downloaded and a function that is necessarily provided to the user.

  In addition, the mobile station MS according to the present embodiment can start the Java application or only execute the Java application by an e-mail transmitted from the transmission source that matches the activation permission information and the cooperation permission information described in the ADF of the Java application. It is configured to allow cooperation with applications. For this reason, it is impossible to start or link the Java application in the mobile device MS with the delivery command tag described in the e-mail created by a malicious third party, Can be secured.

  In addition, the mobile device MS according to the present embodiment is configured to execute after obtaining a user's approval when starting a Java application or performing cooperation between the Java application and a mailer. For this reason, it is possible to prevent the Java application from being activated without permission by executing these processes in a state not intended by the user.

  Furthermore, the IP server W according to the present embodiment generates and transmits an e-mail in which an activation command tag and a delivery command tag are described based on an input operation performed on the operation terminal 16 by the operator. For this reason, the operator can activate or link any application among the applications downloaded to the mobile device MS by operating the operation terminal 16.

  At this time, the mail address stored in the user management DB 14 is automatically set as the destination of the e-mail in association with the URI of the Java application designated by the operator. For this reason, the IP operator can transmit e-mails addressed to a plurality of mobile devices MS without performing a complicated operation of designating the destination of the e-mail.

  In the present embodiment, the form in which the character strings <MOVE> </ MOVE> and <IMPORT> </ IMPORT> are used as the start instruction tag and the delivery instruction tag has been described. However, the character strings that mean both tags Of course, other character strings may be used. In the present embodiment, parameter specification is used to specify application specification information and data specification information in these tags. However, other methods may be used.

  Note that, in the present embodiment, it is configured to realize cooperation between the Java application and the mailer by using two tags, that is, an activation instruction tag and a delivery instruction tag. However, the above-described function can be realized by one tag. For example, when only the delivery instruction tag is used, it is described as <IMPORT> <param> ”(URI of ADF)” </ param> <param> ”DATA \ 12345 \” </ param> </ IMPORT> In this way, the application designation information may be designated by the front parameter tag, and the data designation information may be designated by the rear parameter tag.

  In the present embodiment, the user management DB 14 stores the mail addresses of all the mobile devices MS that have downloaded the Java application for each Java application held by the IP server W. An e-mail addressed to all e-mail addresses stored in association with the URI of the designated Java application is transmitted. In other words, an e-mail is transmitted to all mobile devices MS that have downloaded the Java application from the IP server W.

  However, it is not always necessary to set the e-mail address of all the mobile devices MS that have downloaded the Java application. Therefore, you may make it transmit with respect to one part. For example, the IP server W may have a page for accepting an e-mail distribution application, and the e-mail may be transmitted only to the mobile device MS of the user who applied for the e-mail on the page. In this case, only the mail address of the mobile station MS of the user who applied for distribution on the page may be stored in the user management DB 14. In addition, a box for inputting whether or not delivery of an e-mail is desired is provided on the download page described above, and only the mail address of the user who has entered the desirability is stored in the user management DB 14. May be.

[Second Embodiment]
The first embodiment described above provides various data to the Java application in the mobile device MS by transmitting an e-mail in which the activation command tag and the delivery command tag are described from the IP server W. On the other hand, the communication system according to the present embodiment starts a Java application in the mobile device MS by using HTML data corresponding to various pages held by the IP server W, and uses the data used in the Java application as the data. This is for provision to the mobile station MS.

  In order to realize such a function, the IP server W according to the present embodiment provides a page (hereinafter referred to as “data”) for providing the mobile station MS with various data used when executing a Java application held as a resource. HTML data corresponding to “provided page”). The IP server W provides various data to the mobile station MS by distributing HTML data corresponding to this page.

  FIG. 16 is a diagram illustrating an example of a source of HTML data corresponding to a data providing page held by the IP server W. As shown in the figure, the HTML data held by the IP server W includes various tags indicating the page structure ("HEAD" tag, "TITLE" tag, "BODY" tag, "BR" tag, anchor tag, etc.) ) Is described. In addition to these various tags that have been used in the past, HTML data includes tags <IMPORT ”http://OO.ne.jp/△△a#△△#”> </ IMPORT> In the present embodiment, such a tag is referred to as a “delivery instruction tag”). This delivery instruction tag is information (that is, data designation information) that designates data used by the Java application, similarly to the delivery instruction tag described in the first embodiment.

  For example, in the case of the HTML data shown in FIG. 16, the data designation information is designated in “##” in “” ”of this delivery instruction tag (ie,“ ΔΔ ”). It should be noted that either “DATA” or “ACQUISITION” is described in “Δ △”, but these “DATA” and “ACQUISITION” are the same as those in the first embodiment described above. Details are omitted here. Further, in the present embodiment, not only data designation information but also information indicating a Java application that uses the data (in the present embodiment, such information is “ Application designation information ”is also designated. For example, in the case shown in FIG. 16, the URI “http://OO.ne.jp/ΔΔa” is the application designation information.

  Note that whether or not the IP server W according to the present embodiment has a function of providing various data by distributing electronic mail (that is, a function similar to that of the first embodiment) is arbitrary. When the IP server W has such a function, the IP server W needs to have the same configuration (see FIG. 4) as that of the first embodiment described above. However, when such functions are not provided, it is not necessary to provide the above-described user management DB 14, I / F unit 15, and operation terminal 16 on the IP server W. Only the system control unit 11, the communication unit 12, and the application DB 13 are provided. What is necessary is just to provide.

  Next, the mobile station MS according to the present embodiment has a function of sharing data (that is, “cooperation”) between the Java application downloaded from the IP server W and the WWW browser. Specifically, the mobile station MS activates the Java application specified by the delivery command tag described in the received HTML data, and executes the data corresponding to the data specifying information in the tag. It has functions that are sometimes used. Except for this function, the configuration of the mobile station MS is the same as that shown in FIGS.

  Here, in the ADF of the Java application according to the present embodiment, the start permission information and the cooperation permission information are described as in the first embodiment. It has contents like this.

(I. Startup permission information)
The activation permission information according to the present embodiment includes the URI of the HTML data download source that allows the Java application to be activated. As described above, in the ADF of the Java application that permits activation by HTML data, at least one URI indicating the download source of HTML data that permits activation of the Java application is described as activation permission information. The activation permission information is described in the ADF by the Java application provider (IP).

  When the mobile device MS activates a Java application in accordance with the delivery command tag described in the HTML data downloaded from the IP server W, the mobile data MS download URI from the HTML data and the ADF of the Java application to be activated by the HTML data. Compared with the launch permission information described in, the Java application is launched only when the two information match.

(Ii. Cooperation permission information)
In this embodiment, the cooperation permission information includes a URI of a download source of HTML data that allows cooperation between the Java application and the browser. In the ADF of a Java application that permits cooperation, at least one source address of HTML data that permits cooperation with the Java application is described as IP as cooperation permission information. When the mobile device MS links the WWW browser and the Java application in accordance with the delivery command tag described in the HTML data downloaded from the IP server W, the download source URI of the HTML data and the Java application specified by the HTML data Compared with the cooperation permission information described in the ADF, the cooperation between the WWW browser and the Java application is permitted only when both pieces of information match.

  Next, the operation of this embodiment will be described. In the following description, in order to make the description more specific, it is assumed that the storage contents of the application DB 13 of the IP server W are the same as those in FIG. 2 described above, and the URI of the data providing page is “http : //www.○○.co.jp/■■.html ”.

  First, the user of the mobile device MS operates the instruction input unit 23 of the mobile device MS to activate the WWW browser. Then, the CPU 211 reads the WWW browser from the ROM 212 in accordance with the operation signal supplied from the instruction input unit 23, and performs packet registration with the packet subscriber processing device in the mobile packet communication network MPN described above.

  After that, when the user inputs to the instruction input unit 23 of the mobile device MS, for example, the above-mentioned download page URI is designated, the CPU 211 of the mobile device MS sends a GET request including the URI to the transmission / reception unit 22. To the mobile packet communication network MPN. In this way, the GET request sent to the mobile packet communication network MPN by the mobile station MS is transferred to the Internet INET by the gateway server GWS and received by the communication unit 12 of the IP server W.

  Next, the system control unit 11 of the IP server W returns HTML data corresponding to the URI included in the GET request (in this case, corresponding to the download page) to the Internet INET according to the WWW server program. As a result, the HTML data is received by the gateway server GWS and transferred to the mobile packet communication network MPN.

  When receiving the HTML data, the CPU 211 of the mobile device MS stores the HTML data in the RAM 213 and causes the liquid crystal display unit 24 to display an image corresponding to the HTML data. At this time, the liquid crystal display unit 24 of the mobile device MS includes a list for selecting Java applications that the mobile device MS can download from the IP server W (that is, all application names stored in the application DB 13), A “Send” button is displayed. Here, each Java application displayed in a list on the liquid crystal display unit 24 is associated with a URI indicating the storage location of the ADF of the Java application.

  In this state, for example, the user performs an input operation to select “Java application a” and performs an input operation to select the “Send” button. Then, the CPU 211 of the mobile device MS transmits a GET request including the URI of the ADF associated with “Java application a” selected from the list to the mobile packet communication network MPN.

  When this GET request is received by the communication unit 12 of the IP server W, the system control unit 11 of the IP server W returns an ADF of “Java application a” according to the URI included in the GET request. When the CPU 211 of the mobile device MS receives the ADF returned from the IP server W, the CPU 211 executes the same processing as steps Sa1 to Sa5 in FIG. Then, the CPU 211 transmits a GET request including a URI indicating the storage location of the Jar file described in the ADF, and determines whether or not a response to the GET request has been received (step Sa6 in FIG. 12). ).

  On the other hand, upon receiving this GET request, the system control unit 11 of the IP server W returns a Jar file according to the URI added to the GET request. In this way, when the Jar file is returned from the IP server W, the CPU 211 of the mobile device MS determines “Yes” in step Sa6 of FIG. 12, and then performs the processing of steps Sa7 to Sa9. As a result, “Java application a” is stored in the application storage memory 2141-k of the mobile station MS, and the contents of the application management table TBL1 are updated.

  Thereafter, when the user of the mobile device MS tries to acquire data to be used when the “Java application a” is executed, the URI “http corresponding to the data providing page of the IP server W is input to the instruction input unit 23 of the mobile device MS. It is necessary to input ": //www.XX.co.jp/■■.html". Then, when the user inputs the URI “http://www.xxx.co.jp/■■.html” of the data providing page, the CPU 211 of the mobile station MS reads the URI “http: // www entered by the user. A GET request including “.xxx.co.jp / ■■ .html” is sent to the mobile packet communication network MPN according to the WWW browser.

  When receiving the GET request transmitted from the mobile station MS, the IP server W transmits HTML data corresponding to the data providing page to the Internet INET according to the WWW server program. Then, this HTML data is transferred to the mobile packet communication network MPN by the gateway server GWS. When receiving the HTML data, the CPU 211 of the mobile device MS causes the liquid crystal display unit 24 to display an image based on the HTML data.

  FIG. 17 is a diagram illustrating an example of an image displayed on the liquid crystal display unit 24 of the mobile device MS at this time. As shown in the figure, at this time, the liquid crystal display unit 24 displays, for example, “If you select a button corresponding to your downloaded Java application, you can obtain data for use in that Java application. A button for selecting each Java application held as a resource by the IP server W is displayed together with a character string such as “”. Each button for selecting the Java application is associated with a delivery command tag. In addition, in the delivery command tag associated with each button, a URI indicating the storage location of the ADF of the Java application corresponding to the button is designated as application designation information, and indicates data used in the Java application. Data specification information is specified.

  In a state where such an image is displayed, the user performs an input operation to the instruction input unit 23 to select, for example, a button “Java application a”. Then, in the CPU 211 of the mobile device MS, processing as shown in FIGS. 18 and 19 is executed. In this figure, “WWW browser”, “JAM”, and “Java application” are functions generated by the CPU 211 of the mobile device MS executing at least one process subroutine (at least one process). Or a thread).

  In the following, in order to facilitate the understanding of the description, these “WWW browser”, “JAM”, and “Java application” are formally the subject of each process. It goes without saying that the processing is performed by executing these applications. The process shown in the figure is merely a process performed by executing a subroutine of each program. In addition to the process shown in the figure, a process according to the main routine is also executed.

  In this process, first, application designation information designated in the delivery command tag associated with the button (that is, the URI “http://www.XX.co.jp” of “Java application a”). / ΔΔa ”) is extracted by the WWW browser. The WWW browser then uses the extracted application designation information “http://www.XXX.co.jp/ΔΔa” and the HTML data download source URI “http: // www corresponding to the data provision page. .Xxx.co.jp / ■■ .html ”is added to the JAM (step Sc1).

  Next, the JAM extracts the download source URI “http://www.xxx.co.jp/■■.html” added to the activation command, stores it in the RAM 213, and stores it in the activation command. The application management table TBL1 is searched using the added application designation information “http://www.OO.co.jp/ΔΔa” as a search key (step Sc2). The JAM reads the memory address “# 0001” stored in association with the application designation information (that is, the URI of the ADF of “Java application a”), and stores it in the RAM 213 (step Sc3).

  Next, the JAM reads the ADF of “Java application a” from the application storage area 2141-k1 corresponding to the memory address “# 0001” stored in the RAM 213 (step Sc4), and the activation described in the ADF Permission information is extracted (step Sc5). Then, the JAM compares the read activation permission information with the download source URI added to the activation instruction, and determines whether or not both pieces of information match (step Sc6). At this time, the JAM uses the server name “http://www.XX.co.jp” of the URI “http://www.XX.co.jp/■■.html” corresponding to the data provision page. The activation permission information is compared, and it is determined whether or not both pieces of information match.

  As a result of this determination, when it is determined as “No” (that is, when “http://www.XX.co.jp” does not exist in the activation permission information), JAM activates “Java application a”. Without displaying, a character string such as “The Java application cannot be started from this page because security cannot be secured” is displayed on the liquid crystal display unit 24 (step Sc7), and the process returns to the main routine.

  On the other hand, when it is determined as “Yes” (that is, “http://www.XX.ne.jp” exists in the activation permission information), JAM is “Security is ensured. Along with a character string such as “Do you want to start a Java application?”, Two buttons “Yes” and “No” are displayed on the liquid crystal display unit 24 (step Sc8). In this way, when an image is displayed, the JAM enters a state in which the user determines whether the selected button is “Yes” (step Sc9). When the user performs an input operation to select the “No” button, JAM determines “No” in step Sc9 and returns to the main routine without starting “Java application a”. .

  On the other hand, when the user selects the “Yes” button, JAM determines “Yes” in Step Sc9, and sends a request for acquiring the data designation information specified in the delivery command tag to the WWW browser (Step S9). Sc10). In this way, when a request for obtaining data designation information is sent from the JAM, the WWW browser sends the data designation information designated in the delivery command tag (that is, “#” designated in “##”). [Delta] [Delta] ") is extracted, and the extracted data designation information is sent to the JAM (step Sc11). At this time, the WWW browser adds the HTML data download source URI “http://www.xxx.co.jp/■■.html” to the data designation information and sends it to the JAM.

  The JAM extracts the HTML data download source URI “http://www.xxx.co.jp/■■.html” added to the data designation information sent from the WWW browser (step Sc12). ). The JAM extracts the cooperation permission information described in the ADF read in step Sc4 (step Sc13), and the permission information and the URI “http://www.xxx.co. It is determined whether or not “jp / ■■ .html” matches (step Sc15). If it is determined as “No” as a result of the determination, the JAM displays a character string such as “Data cannot be imported from this HTML data”. The JAM reads the Jar file from the memory address “# 0001” stored in the RAM 213, starts the “Java application a” in accordance with the Jar file (step Sc17), and returns to the main routine.

  On the other hand, if it is determined as “Yes” as a result of this determination, JAM will display two strings “Yes” and “No” along with a character string such as “Do you want to import from the acquired data in the WWW browser?” The button is displayed on the liquid crystal display unit 24 (step Sc15). In this way, when the image is displayed, the JAM enters a state where the user determines whether or not the button selected is “Yes” (step Sc16). When the user performs an input operation to select the “No” button, the JAM determines “No” in Step Sc16 and activates “Java application a” (Step Sc17), and then goes to the main routine. And return.

  On the other hand, when the user selects the “Yes” button, JAM determines “Yes” in step Sc16, and determines whether the data designation information sent from the WWW browser is “DATA”. (Step Sc18). If it is determined “Yes” in this determination, the JAM reads the Jar file from the memory address “# 0001” stored in the RAM 213 and starts “Java application a” according to the Jar file (step Sc19). ). In this way, when “Java application a” is activated, the JAM delivers the data entity defined by “DATA” to the activated “Java application a” (step Sc20), and the processing is performed in the main routine. It returns to. As a result, the data entity defined by “DATA” is stored in the application data storage area 2141-k2 and can be used by “Java application a”, and therefore, between “Java application a” and the WWW browser. Data is shared.

  On the other hand, if JAM determines “No” in step Sc18, the JAM reads the Jar file from the memory address “# 0001” stored in the RAM 213, and starts “Java application a” according to the Jar file (step Sc21). The JAM then accesses the URI specified by “ACQUISITION” to the Java application, sends a command to acquire data (step Sc22), and returns to the main routine.

  Upon receiving this instruction, “Java application a” sends a GET request including the URI to the mobile packet communication network MPN. When the data sent back via the mobile packet communication network MPN is received by the transmission / reception unit 22 in response to this GET request, the “Java application a” has the application data storage area 2141-k2 corresponding to itself. Stores the data sent back to. As a result, the data can be used by the “Java application a”.

  As described above, the mobile station MS according to the present embodiment is configured to perform cooperation between the WWW browser and the Java application in accordance with the delivery command tag described in the received HTML data. For this reason, the IP can provide various data used by the Java application in the mobile station MS only by storing HTML data corresponding to the data providing page as a resource. In addition, the user of the mobile station MS can acquire various data used in the Java application in the mobile station MS simply by acquiring the HTML data corresponding to the data provision page of the IP server W using the mobile station MS. Is possible.

  In addition, the mobile device MS according to the present embodiment is configured so that the WWW browser can be used only by the delivery command tag described in the HTML data having the download source URI that matches the activation permission information and the cooperation permission information described in the ADF of the Java application. And a Java application are allowed to be linked. For this reason, according to the present embodiment, it is possible to ensure security even when the WWW browser and the Java application are linked.

  In the present embodiment, the form in which the character string “<IMPORT” ”> is used as the delivery instruction tag has been described, but the character string that means the delivery instruction tag may naturally be another character string. . In addition, a form for designating application designation information and data designation information in the tag is arbitrary.

[Third Embodiment]
The first embodiment described above provides various data to the Java application in the mobile device MS by transmitting an e-mail in which the activation command tag and the delivery command tag are described from the IP server W. In contrast, the communication system according to the present embodiment is for sharing the same data between two or more Java applications downloaded from the IP server W in the mobile device MS while ensuring security.

  In order to realize this function, the Java application stored in the application DB 13 of the IP server W in this embodiment shares various data with other Java applications when executed in the mobile station MS, The process according to the data is executed.

  Note that whether or not the IP server W according to the present embodiment has a function of providing various data by distributing electronic mail (that is, a function similar to that of the first embodiment) is arbitrary. When the IP server W has such a function, the IP server W needs to have the same configuration (see FIG. 4) as that of the first embodiment described above. However, when such functions are not provided, it is not necessary to provide the above-described user management DB 14, I / F unit 15, and operation terminal 16 on the IP server W. Only the system control unit 11, the communication unit 12, and the application DB 13 are provided. What is necessary is just to provide. Further, whether or not the IP server W according to the present embodiment holds HTML data in which a delivery command tag is described (that is, whether or not to have the same configuration as that of the second embodiment) is arbitrary.

  Next, the mobile station MS according to the present embodiment downloads various Java applications from the IP server W and executes processing according to the Java application, and also has a plurality of Java applications downloaded from the IP server W by itself. Various data can be shared between the two. For example, the mobile device MS performs a baseball game game from the IP server W (hereinafter referred to as “game application”) and various parameters of the baseball game character (for example, batting power, running power, When a Java application (hereinafter referred to as “practice application”) for determining a pitching speed, a pitchable pitch type, etc.) is downloaded, the mobile device MS according to the present embodiment It has a function of using the player parameters when executing the game application. Other configurations are the same as those shown in FIGS. 6 to 9 described above, and the details of the configuration of the mobile device MS are omitted.

  Here, since the Java application in the mobile station MS is downloaded from the IP server W of the Internet INET, the reliability is not necessarily guaranteed. For this reason, if sharing of data between Java applications is permitted without any restrictions, for example, personal information input by the user during execution of a Java application whose reliability is ensured, There is a possibility that a situation may occur in which the mobile device MS flows out of the mobile device MS via a Java application provided by a malicious third party.

  Therefore, in the ADF of the Java application according to the present embodiment, the activation permission information and the cooperation permission information are described as in the first embodiment, and the mobile station MS transmits the application between applications based on the permission information. Whether to allow sharing of data. In the present embodiment, each permission information has the following contents.

(I. Startup permission information)
The activation permission information according to the present embodiment includes a URI indicating a download source of another Java application that allows the Java application to be activated. As described above, the ADF of the Java application that permits the launch from another Java application has at least one URI indicating the download source of the other Java application that is permitted to launch the Java application, as the launch permission information. It is described by IP. The mobile station MS allows the Java application to be activated only by an action from the Java application whose download source is the URI included in the activation permission information.

  For example, when the ADF of “Java application a” downloaded by the mobile device MS describes activation permission information having a URI “http://www.XX.ne.jp” as an element, the mobile device MS , "Java application a" is allowed to be activated only by an action from a Java application downloaded from a URI whose server name is "http://www.XX.ne.jp".

(Ii. Cooperation permission information)
The cooperation permission information according to the present embodiment includes a URI indicating a download source of another Java application that permits sharing of various data with the Java application. As described above, the ADF of the Java application that permits cooperation with another Java application has at least one URI indicating the download source of the other Java application that permits cooperation with the Java application, as cooperation permission information. , Described by IP. The mobile device MS permits sharing of various data with the Java application only by an action from the Java application that uses the URI included in the cooperation permission information as a download source.

  As described in the first embodiment, the data stored in each application data storage area 2141-k2 is read from other than the Java application corresponding to the area 2141-k2 in order to ensure security. You can't do it.

  Next, the operation of this embodiment will be described. In the following description, in order to make the description more specific, description will be made assuming that the storage contents of the application DB 13 of the IP server W are the same as those in FIG.

  First, the user of the mobile device MS should start the WWW browser for the instruction input unit 23 of the mobile device MS in order to download, for example, “Java application a” and “Java application b” from the IP server W. Perform an input operation to that effect. Then, the CPU 211 of the mobile device MS activates the WWW browser stored in the ROM 212 and registers the packet in the mobile packet communication network MPN.

  Thereafter, when the user performs an input operation for designating the URI of the download page described above, for example, on the instruction input unit 23 of the mobile device MS, the CPU 211 of the mobile device MS sends a GET request including the URI to the transmission / reception unit 22. To the mobile packet communication network MPN. In this way, the GET request sent to the mobile packet communication network MPN by the mobile station MS is transferred to the Internet INET by the gateway server GWS and received by the communication unit 12 of the IP server W.

  Next, the system control unit 11 of the IP server W returns HTML data corresponding to the URI included in the GET request (in this case, corresponding to the download page) to the Internet INET according to the WWW server program. As a result, the HTML data is received by the gateway server GWS and transferred to the mobile packet communication network MPN.

  On the other hand, when receiving the HTML data, the CPU 211 of the mobile station MS stores the HTML data in the RAM 213 and causes the liquid crystal display unit 24 to display an image based on the HTML data. As a result, the “transmission” button is displayed on the liquid crystal display unit 24 together with a list for selecting Java applications that can be downloaded from the IP server W by the mobile device MS (that is, all application names stored in the application DB 13). Is displayed.

  In this state, for example, the user performs an input operation to select “Java application a” and performs an input operation to select the “Send” button. Then, the same processing as in the second embodiment described above is performed between the mobile device MS and the IP server W, whereby “Java application a” is downloaded from the IP server W to the mobile device MS, and the mobile device MS And the application management table TBL1 is updated.

  In this way, in a state where “Java application a” is downloaded to the mobile device MS, the user downloads again to the instruction input unit 23 of the mobile device MS, for example, to continuously download “Java application b”. Enter the page URI. Then, the CPU 211 of the mobile device MS sends again a GET request including a URI corresponding to the download page to the mobile packet communication network MPN. When the HTML data corresponding to the download page is returned from the IP server W in response to the GET request, the liquid crystal display unit 24 of the mobile station MS again displays a list of Java applications that can be downloaded from the IP server W. A “Send” button is displayed.

  In this state, when the user performs an input operation for selecting “Java application b”, the same processing as in the second embodiment is performed again between the mobile device MS and the IP server W, and “Java” is selected. Application b "will be downloaded to the mobile station MS. As a result, “Java application a” and “Java application b” are stored in the application storage memory 2141-k of the mobile device MS, and the storage contents of the application management table TBL1 are updated as in the example shown in FIG. Is done.

  Under such a state, the user inputs, for example, that “Java application a” should be started. Then, the CPU 211 of the mobile device MS reads “Java application a” from the application storage memory 2141-k and starts it in accordance with the input operation performed by the user.

  The user can use the function provided by executing “Java application a” in this state. Specifically, when “Java application a” is the above-described practice application, the user performs input operations for setting parameters of each character of the baseball game (for example, input corresponding to pitching practice, batting practice, etc.) Operation) is performed on the instruction input unit 23, and the parameters of each character can be set. Various data (for example, parameters of each character) generated when the “Java application a” is executed may be stored in a predetermined area of the RAM 213 (hereinafter referred to as “heap”). It may be stored in the application data storage area 2141-k2 corresponding to “Java application a”.

  Thus, in a state where various data are stored in the heap or the application data storage area 2141-k2, the user performs an input operation to the instruction input unit 23 to share the data with other applications. I do. Then, the CPU 211 of the mobile device MS displays a list of Java applications that can be linked with the “Java application a” and have already been downloaded to the mobile device MS. It should be noted that the setting of Java applications that can be linked may be arbitrarily set by the user, or may be stored in advance in the Java application.

  Next, the user performs an input operation to designate “Java application b”. Then, in the CPU 211 of the mobile device MS, the processes shown in FIGS. 20 and 21 are executed according to the input operation. In this figure, “Java application a”, “JAM”, and “Java application b” are functions (at least one) generated by the CPU 211 of the mobile device MS executing the subroutines of these programs. One process or thread).

  In the following, in order to facilitate understanding of the description, these “Java application a”, “JAM”, and “Java application” are formally the subject of each process. Needless to say, the process is performed by executing these applications. The process shown in the figure is merely a process performed by executing a subroutine of each program. In addition to the process shown in the figure, a process according to the main routine is also executed.

  First, in this process, “Java application a” sends an activation command for “Java application b” to JAM (step Sd1). In this case, it is arbitrary which method is used to designate “Java application b”. For example, the memory address of the application storage memory 2141-k in which “Java application b” is stored may be added to this activation instruction, or the download source URI of “Java application b” is added to the activation instruction. You may make it do.

  On the other hand, when receiving this activation command, the JAM reads the ADF of “Java application b” from the application storage memory 2141-k in which “Java application b” is stored (step Sd2), and the activation permission information possessed by the ADF Is extracted and stored in the RAM 213 (step Sd3). Next, JAM reads the download source URI “http: //www.○.co.jp/ΔΔa” of “Java application a” from the application management table TBL1 (step Sd4), and JAM reads The download source URI “http://www.XX.co.jp/ΔΔa” is compared with the activation permission information stored in the RAM 213, and it is determined whether or not the two information match ( Step Sd5). At this time, the JAM server name “http://www.xxx.co.jp” of the download source URI “http://www.xxx.co.jp/△△a” read from the application management table TBL1. Is compared with the activation permission information, and it is determined whether or not both pieces of information match.

  If it is determined as “No” as a result of the determination in step Sd5, the JAM does not start “Java application a”, and “starts the Java application designated from this Java application because security cannot be secured. Is displayed on the liquid crystal display unit 24 (step Sd6), and the process returns to the main routine.

  On the other hand, if it is determined as “Yes” in step Sd5 (that is, “XX.ne.jp” exists in the start permission information), JAM is “Security is secured. Java application. “Yes” and “No” are displayed on the liquid crystal display unit 24 together with a character string such as “Do you want to start up” (step Sd7). Thus, when the image is displayed, the JAM enters a state where it is determined whether or not the button selected by the user is “Yes” (step Sd8). When the user performs an input operation to select the “No” button, JAM determines “No” in step Sd8 and returns to the main routine without starting “Java application b”. .

  On the other hand, when the user selects the “Yes” button, JAM determines “Yes” in step Sd8, and sends a data acquisition request to “Java application a” (step Sd9). Thus, when a data acquisition request is sent from JAM, “Java application a” is stored in the heap or in the application data storage area 2141-k2 (for example, in the case of a game). Character parameters, etc.) are read out (step Sd10) and sent to the JAM (step Sd11).

  On the other hand, when data is sent from the “Java application a”, the JAM stores the data in the RAM 213 and extracts cooperation permission information included in the ADF read in step Sd2 (step Sd12). Next, the JAM compares the extracted cooperation permission information with the download source URI of the “Java application a” read in step Sd4, and determines whether or not both pieces of information match (step Sd13). If it is determined as “No” as a result of the determination, the JAM activates “Java application b” (step Sd16) and returns to the main routine.

  If it is determined as “Yes” in this step Sd13, the JAM displays “Yes” together with a character string such as “Can the parameter determined in this Java application be used in the specified Java application?” Or the like. , Two buttons “No” are displayed on the liquid crystal display unit 24 (step Sd14).

  In this way, when the image is displayed, the JAM enters a state where it is determined whether or not the button selected by the user is “Yes” (step Sd15). When the user performs an input operation to select the “No” button, JAM determines “No” in step Sd15, reads the Jar file of “Java application b”, and “Java” according to the Jar file. The application “b” is started (step Sd16), and the process returns to the main routine.

On the other hand, when the user selects the “Yes” button, JAM determines “Yes” in step Sd15, reads the Jar file of “Java application b”, and starts “Java application b” according to the Jar file. (Step Sd17). In this way, when “Java application b” is activated, the JAM reads the data sent from “Java application a” from the RAM 213 and delivers it to “Java application b” (step Sc18). Is returned to the main routine.

  As a result, the data entity generated when “Java application a” is executed is stored in the application data storage area 2141-k2 corresponding to “Java application b”, and can be used by “Java application b”. As a result, data is shared between “Java application a” and “Java application b”.

  As described above, the mobile station MS according to the present embodiment is configured to perform cooperation between Java applications downloaded from the IP server W. For this reason, for example, a function for playing a baseball game can be shared by a plurality of Java applications. Also, the mobile device MS according to the present embodiment is allowed to cooperate only with a Java application downloaded from a download source that matches the activation permission information and the cooperation permission information described in the ADF of the Java application. It has a configuration. Therefore, according to the present embodiment, data can be shared among Java applications while ensuring security in the mobile device MS.

[Supplement]
<Modification 1>
In each of the above embodiments, a Java application stored in the non-volatile memory 214 of the mobile station MS is activated or is configured to cooperate with other applications. However, in the mobile station MS to which data storage modules such as SIM (System Identify Module) and UIM (User Identify module) are connected, Java applications stored in these modules can be linked with other applications. is there.

  The configuration of the mobile device MS according to the first modification is shown in FIG. As shown in the figure, the mobile station MS includes an interface unit 26 (hereinafter, “interface” is abbreviated as “I / F”) in addition to the units shown in FIG. 6 described above. The control unit 21 can exchange data with the module 27 via the I / F unit 26.

  FIG. 23 is a diagram showing the configuration of the module 27 connected via the I / F unit 26. As shown in FIG. As shown in the figure, the module 27 includes a CPU 271, a ROM 272, a RAM 273, a nonvolatile memory 274, and a mobile device I / F unit 275.

  Mobile device I / F unit 275 mediates data exchange between CPU 271 and I / F unit 26 of mobile device MS. In addition to various control programs, the ROM 272 stores programs for performing analysis, execution, response, data management, and the like of commands supplied from the mobile station MS. The ROM stores software for building a Java execution environment that is used when the CPU 271 executes a Java application.

  Note that the Java execution environment implemented in the module 27 may be the same as the Java execution environment implemented in the mobile station MS (see FIG. 9), or a different edition (for example, in the module 27). It is also possible to use a device whose functions are reduced in accordance with the processing capability of the CPU 271 mounted.

  The nonvolatile memory 274 stores information such as a mail address and a subscriber number, and is provided with a plurality of application storage memories, a table storage memory, and a received mail storage memory. These application storage memory, table storage memory, and received mail storage memory are a plurality of application storage memories, table storage memory, received mail storage memory provided in the non-volatile memory 214 of the mobile station MS in each of the above embodiments. It has the same configuration.

  The CPU 271 controls each unit of the module 27 by executing a program stored in the ROM 272 or the nonvolatile memory 274. The RAM 273 is used as a work area.

  In the present modification having the above-described configuration, operations related to activation and cooperation of the Java application stored in the module 27 will be described below. It should be noted that an object (ie, mailer, WWW browser, or other Java application) with which the Java application in the module 27 cooperates may be stored in the ROM 212 of the mobile device MS, or the nonvolatile memory 274 of the module 27. Or may be stored in the ROM 272. However, when these applications are stored in the module 27, the CPU 271 of the module 27 performs the same processing as the above-described embodiments (that is, the same processing as in FIGS. 14, 15, 18, 19, 20 and 21). ) Will be executed. Hereinafter, a case where these applications are stored in the mobile station MS will be described.

(I. Cooperation by e-mail (function of the first embodiment))
In this case, in FIG. 14 and FIG. 15 described above, the processing performed by the mailer is performed by the CPU 211 of the mobile station MS that executed the mailer, and the processing performed by the JAM is stored in the ROM 272. This is performed by the CPU 271 of the module 27 that executed the above. At this time, the execution subject of the Java application (that is, the Java application that is activated by JAM and uses data corresponding to the data designation information designated by the delivery instruction tag) is also the CPU 271 of the module 27. Note that the contents of the processing executed in each step of FIG.

(Ii. Cooperation by HTML data (function of the second embodiment))
In this case, in FIG. 18 and FIG. 19 described above, the processing performed by the WWW browser is performed by the CPU 211 of the mobile station MS executing the WWW browser, and the processing performed by the JAM is stored in the ROM 272. This is performed by the CPU 271 of the module 27 that has executed the execution environment. At this time, the execution subject of the Java application is also the CPU 271 of the module 27. Note that the contents of the processing executed in each step of FIG.

(Iii. Cooperation with Java application stored in mobile device MS (function of the third embodiment))
In this case, in FIG. 20 and FIG. 21 described above, the processing performed by the “Java application a” is performed by the CPU 211 of the mobile station MS executing the “Java application a”, and the processing performed by the JAM is performed by the ROM 272. This is performed by the CPU 271 of the module 27 that executes the Java execution environment stored in. At this time, the execution subject of “Java application b” is also the CPU 271 of the module 27. Note that the contents of the processing executed in each step of FIG.

  Thus, according to this modification, the present invention can also be applied to cooperation with a Java application stored in the module 27 such as UIM.

<Modification 2>
In each of the embodiments described above, when the mobile station MS compares the source address or URI of the e-mail with the permission information (activation permission information and cooperation permission information), the mobile station MS partially If they match, it can be determined that both pieces of information match, and activation and cooperation can be permitted.

  For example, for the e-mail source address described in the first embodiment, only the domain address “@ zzzz.ne.jp” after “@” is described as permission information in the ADF, and the mobile station MS Determines whether “@ zzzz.ne.jp” is included in the source address of the received e-mail. In this case, the mobile device MS determines that both pieces of information match even if the source address of the e-mail is, for example, “abc@zzzz.ne.jp” or “def@zzzz.ne.jp”. Permits cooperation with Java applications. Further, as the permission information, the entire transmission source address of the e-mail and information indicating the range of transmission addresses used for comparison may be described in the ADF.

  The same applies to the URI indicating the download source of HTML data described in the second embodiment and the URI indicating the download source of other Java applications described in the third embodiment. In this case, for example, only “http://www.zzzz.co.jp/” of the URI is described as permission information in the ADF, and the mobile station MS transmits the HTML data download source URI, It is determined whether or not “http://www.zzz.co.jp/” is included in the download source URI of another Java application. In this way, it is possible to collectively permit cooperation with HTML data downloaded from a directory under “http://www.zzz.co.jp/” described as permission information, and other Java applications. it can.

  As described above, cooperation with a Java application or the like may be possible by partial matching by using backward matching when using an e-mail address as permission information and using forward matching when using a URI.

<Modification 3>
For example, in a short mail of a mobile phone, a telephone number is used as a mail address. Therefore, a telephone number can be used as the activation permission information and the cooperation permission information. If the phone number is used as activation permission information or linkage permission information in this way, for example, if the short mail source address (phone number) is not notified or the mail source is a public phone, a Java application It is possible not to allow the cooperation with. Further, it is possible to identify the communication carrier of the mobile packet communication network that accommodates the mobile phone from the phone number of the mobile phone. Therefore, it is also possible to identify a communication carrier for the mobile phone of the transmission source from the transmission source address (telephone number) of the short mail, and determine whether or not to cooperate with the Java application according to the communication carrier.

<Modification 4>
In each of the above-described embodiments, the user may be allowed to set whether or not to permit each of these forms of cooperation, such as cooperation by e-mail, cooperation by HTML data, and cooperation with other programs.

  In this case, first, the mobile station MS displays an operation setting screen for setting the operation conditions of the Java application when the user first activates the Java application. The operation condition setting items displayed here include “cooperation by e-mail”, “cooperation by HTML data”, “cooperation with other programs”, and “cooperation with external devices”. “Cooperation with an external device” means a PC capable of performing near field communication such as infrared communication, Bluetooth (registered trademark), HomeRF (Home Radio Frequency), or wired communication with the mobile device MS. And collaboration with PDAs.

  The user can set whether or not to permit this cooperation form for each of the above items by an input operation, and the mobile device MS stores information indicating whether or not to permit each cooperation form set by the input operation in a nonvolatile manner. Stored in the memory 214. For example, even if the source address of the received e-mail matches the cooperation permission information, the mobile station MS does not set “permission by e-mail” to “permitted” by the user. , Does not allow this Java application to be linked and does not allow the provision of data.

  In this way, the startup permission information and the cooperation permission information are described in the ADF of the Java application, and even if the Java application is capable of cooperation by e-mail, the user sets the “cooperation by e-mail” setting to “ If it is not set to “permitted”, the Java application will not be launched without permission, and the data used by the Java application will not be updated without permission.

<Modification 5>
In each of the above-described embodiments, the Java application downloaded from the IP server W is activated or linked in response to an action from a mailer, a WWW browser, or another Java application. However, the Java application to be activated or linked may be one stored in the nonvolatile memory 214 at the time of product shipment of the mobile device MS (ie, a preinstalled native application), or a CD- It may be installed in the mobile station MS from a storage medium such as a ROM.

<Modification 6>
In each of the above-described embodiments, a Java application written in the Java programming language has been described as an example. However, even if an application is written in another programming language, similar effects can be achieved. Needless to say. In this case, it is necessary for the application to have activation permission information and cooperation permission information, but this method is arbitrary. For example, a file describing both pieces of permission information may be provided in a file constituting the application.

<Modification 7>
The mobile device MS according to the third embodiment described above, for example, generates the “Java application a” when executing the “Java application a” and stores the data itself stored in the heap or the application data storage area 2141-k 2 as “Java”. It had a configuration of handing over to application “b”. However, without passing the data itself from “Java application a” to “Java application b”, the address of the data (for example, URI) is handed over, and “Java application b” receives various data from the address. It is also possible to obtain.

  In this case, the CPU 211 of the mobile device MS generates an address such as a URI, for example, when executing the “Java application a”. In step Sd12 of FIG. Sent to JAM from application a ”. Then, in step Sd20 in FIG. 21, a data acquisition command is sent from the JAM to the “Java application b” with the URI added. Then, “Java application b” acquires data corresponding to the address transmitted from “Java application a” in accordance with the acquisition command transmitted from JAM.

  As described above, according to the present modification, for example, “Java application b” can acquire not only data generated when “Java application a” is executed, but also data specified by “Java application a”. It becomes.

<Modification 8>
In each of the above embodiments, in order to ensure the reliability of e-mail, HTML data, or Java application, the JAM includes the e-mail address and URI of the received e-mail and permission information described in the ADF of the Java application. Is a configuration to compare. And only when both information correspond, JAM is the structure which starts or cooperates a Java application (refer FIG. 14, 15, 18, 19, 20, 21). However, such processing does not necessarily have to be performed based on JAM. For example, the above process may be executed in a process based on the OS. In this case, the OS executes the processing executed based on JAM in FIGS. 14, 15, 18, 19, 20 and 21 described above.

<Modification 9>
In each of the above embodiments, the case where J2ME / CLDC is implemented as a Java execution environment implemented in the mobile device MS has been described. However, the Java execution environment may be implemented with other configurations (for example, J2ME / CLD: Java 2 Micro Edition / Connected Limited Device), and the profile may be MIDP (Mobile Information Device Profile) or the like may be implemented. Further, this Java execution environment may be J2SE (Java 2 Standard Edition) or J2EE (Java 2 Enterprise Edition), which is an upper edition of J2ME.

<Modification 10>
In each of the above embodiments, the native application stored in the ROM 212 of the mobile device MS, the native components of the Java execution environment, and the like are stored in the ROM 212 and shipped when the mobile device MS is manufactured. However, these applications may be stored in a storage medium such as a CD-ROM for sale and installed in the mobile device MS or downloaded from the IP server W.

<Modification 11>
Although not particularly mentioned in the first embodiment described above, the following information is described in the e-mail generated by the IP server W in addition to the activation command tag and the delivery command tag. Also good.

(I. Information 1)
The type of data specification information specified by the delivery instruction tag (that is, the type of “DATA” or “ACQUISITION”).
(Ii. Information 2)
If the data specification information specified by the delivery instruction tag is “ACQUISITION”, the amount of data corresponding to the data specification information.

  By describing such contents, the user can grasp whether or not the data corresponding to the data designation information described in the e-mail must be downloaded. It is possible to grasp the time required for the communication, the communication fee required for downloading, and the like. Note that, by describing the information 1 and the information 2 in the HTML data, it is naturally possible to obtain the same effect in the second embodiment.

<Modification 12>
In the first embodiment described above, the data corresponding to the data designation information designated by the parameter tag in the delivery instruction tag is used for the Java application activated in accordance with the activation instruction tag. In other words, the Java application in the mobile device MS is linked with the mailer after being activated.

  However, you may make it implement | achieve only cooperation, without starting a Java application. In this case, the e-mail transmitted from the IP server W to the mobile station MS does not need to describe the activation command tag, and only the delivery command tag needs to be described. When such a method is adopted, it is necessary to specify a Java application in the delivery instruction tag. Therefore, when this method is adopted, both application designation information and data designation information may be designated in the delivery instruction tag. In the mobile station MS, the Java application specified by the delivery command tag uses the data specified by the data specifying information. At this time, as a method for making the Java application use data corresponding to the data designation information, for example, there are the following methods.

(I. Method 1)
In this method, the JAM executed by the CPU 211 directly stores data corresponding to the data designation information described in the received e-mail in the application data storage area 2141-k2. This method is particularly effective when the mobile station MS does not have a function of simultaneously executing a plurality of applications. When the data designation information is “ACQUISITION”, in the CPU 211 of the mobile device MS, the mailer sends a data acquisition command corresponding to the “ACQUISITION” to the WWW browser, and according to this acquisition command, the WWW browser The mailer sends the acquired data to the JAM, and the JAM stores the data in the application data storage area 2141-k2.

(Ii. Method 2)
This method is a method in which the CPU 211 of the mobile device MS executes both the mailer and the Java application at the same time, and performs the same processing as in FIGS. 14 and 15 described above in this simultaneous execution state. In order to realize this method, the mobile station MS needs to have a function of simultaneously executing a plurality of applications.

<Modification 13>
In each of the above-described embodiments, the case where the mobile device MS such as a mobile phone is used has been described. However, the present invention is not limited to the mobile device MS, and can be realized by using any electronic device such as a PDA or PC having a function of connecting to the Internet. As described above, when a PC or PDA is used, it is possible to adopt a configuration in which communication is performed via a public digital network such as ISDN or a fixed telephone network without using the mobile packet communication network MPN.

(The invention's effect)
As described above, according to the present invention, it is possible to ensure the security of data provided to an application in an electronic device.

W ... IP server, 11 ... system control unit, 12 ... communication unit, 13 ... application DB, 14 ... user management DB, 15 ... interface unit, 16 ... operation terminal , MS ... mobile device, 21 ... control unit, 211 ... CPU, 212 ... ROM, 213 ... RAM, 214 ... nonvolatile memory, 2141-k (k = 1, 2) , ..., n) ... application storage memory, 2141-k1 (k = 1, 2, ..., n) ... application storage area, 2141-k2 ... application data storage area, 2142 ... table storage Memory, 2143 ... received mail storage memory, 22 ... transmission / reception unit, 23 ... instruction input unit, 24 ... liquid crystal display unit, 25 ... data bus, 6 ... I / F section, 27 ... module, 271 ... CPU, 272 ... ROM, 273 ... RAM, 274 ... nonvolatile memory, 275 ... mobile device I / F Part, TBL1 ... application management table, MPN ... mobile packet communication network, BS ... base station, GWS ... gateway server, INET ... Internet.

Claims (21)

Storage means for storing programs and data;
Control means for executing the program;
A communication means for performing communication via a network,
The storage means stores a first program, a second program, a management program for managing data used in the first program and the second program,
The second program includes an entity file including an entity of the program and a description file including first transmission source information indicating a transmission source permitted to provide data used in the second program,
The first program includes a group of instructions for receiving an e-mail including data designation information indicating data used in the second program from the network via the communication unit,
The control means executing the first program receives an email from the network via the communication means,
When the data designation information is included in the email, the control means executing the management program reads the first transmission source information from the storage means,
When the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received e-mail, the control means executing the management program , Storing the data in a storage area corresponding to the second program of the storage means;
The mobile terminal that executes the second program reads the data from a storage area corresponding to the second program and processes the read data. The e-mail includes start instruction information for instructing start of the second program,
The storage means stores second transmission source information corresponding to the second program,
When the data designation information and the activation instruction information are included in the electronic mail, the control means executing the management program sends the first transmission source information and the second transmission from the storage means. When the original information is read and the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received electronic mail, and the second transmission When the transmission source indicated by the original information matches a predetermined part or all of the information indicating the transmission source of the received e-mail, the data is stored in the storage unit corresponding to the second program The mobile terminal according to claim 1, wherein the mobile terminal is stored in an area and the second program is activated. The storage means stores permission information indicating whether or not to permit use of the data included in the e-mail by the second program;
When the data designation information is included in the e-mail, the control means executing the management program reads the first transmission source information and the permission information from the storage means, Data in which the transmission source indicated by the transmission source information matches a predetermined part or all of the information indicating the transmission source of the received electronic mail, and the permission information is included in the electronic mail The data is stored in a storage area corresponding to the second program of the storage means when indicating that the use by the second program is permitted. Mobile devices. The storage means stores a plurality of the second programs,
The e-mail includes program designation information for designating one second program from the plurality of second programs,
The control means executing the management program only when the transmission source indicated by the transmission source information matches a predetermined part or all of the information indicating the transmission source of the received e-mail, The portable data terminal according to any one of claims 1 to 3, wherein the data is stored in a storage area corresponding to the one second program of the storage unit. Storage means for storing programs and data;
Control means for executing the program;
A communication means for performing communication via a network,
The storage means stores a first program, a second program, a management program for managing data used in the first program and the second program,
The second program includes an entity file including an entity of the program and a description file including first transmission source information indicating a transmission source permitted to provide data used in the second program,
The first program includes a group of instructions for receiving an e-mail including data designation information indicating a location of data used in the second program from the network via the communication unit;
The control means executing the first program receives an email from the network via the communication means,
When the data designation information is included in the email, the control means executing the management program reads the first transmission source information from the storage means,
When the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received e-mail, the control means executing the management program Storing the data designation information and an acquisition command for acquiring the data in a storage area corresponding to the second program of the storage means;
The control means executing the second program reads the data designation information and the acquisition instruction from a storage area corresponding to the second program, and uses the data designation information according to the read acquisition instruction. A mobile terminal that acquires the data and processes the acquired special data. The e-mail includes start instruction information for instructing start of the second program,
The storage means stores second transmission source information corresponding to the second program,
When the data designation information and the activation instruction information are included in the electronic mail, the control means executing the management program sends the first transmission source information and the second transmission from the storage means. When the original information is read and the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received electronic mail, and the second transmission If the transmission source indicated by the original information matches a predetermined part or all of the information indicating the transmission source of the received e-mail, the data designation information and the acquisition command are sent to the second storage unit. The mobile terminal according to claim 5, wherein the mobile terminal is stored in a storage area corresponding to the program and the second program is activated. The storage means stores permission information indicating whether or not to permit use of the data included in the e-mail by the second program;
When the data designation information is included in the e-mail, the control means executing the management program reads the first transmission source information and the permission information from the storage means, Data in which the transmission source indicated by the transmission source information matches a predetermined part or all of the information indicating the transmission source of the received electronic mail, and the permission information is included in the electronic mail When the use of the second program is permitted, the data designation information and the acquisition command are stored in a storage area corresponding to the second program of the storage means. Item 7. The mobile terminal according to Item 5 or 6. The storage means stores a plurality of the second programs,
The e-mail includes program designation information for designating one second program from the plurality of second programs,
The control means executing the management program only when the transmission source indicated by the transmission source information matches a predetermined part or all of the information indicating the transmission source of the received e-mail, The mobile terminal according to any one of claims 5 to 7, wherein the data designation information and the acquisition command are stored in a storage area corresponding to the first second program of the storage unit. Storage means for storing programs and data;
Control means for executing the program;
A communication means for performing communication via a network,
The storage means stores a first program, a second program, a management program for managing data used in the first program and the second program,
The second program includes an entity file including an entity of the program and a description file including first transmission source information indicating a transmission source permitted to provide data used in the second program,
The first program includes a group of instructions for receiving HTML (HyperText Markup Language) data including data designation information indicating data used in the second program from the network via the communication unit,
The control means executing the first program receives HTML data from the network via the communication means,
When the data specifying information is included in the HTML data, the control means executing the management program reads the first transmission source information from the storage means,
When the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, the control means executing the management program , Storing the data in a storage area corresponding to the second program of the storage means;
The mobile terminal that executes the second program reads the data from a storage area corresponding to the second program and processes the read data. The HTML data includes start instruction information for instructing start of the second program,
The storage means stores second transmission source information corresponding to the second program,
When the HTML data includes the data designation information and the activation instruction information, the control means executing the management program stores the first transmission source information and the second transmission source from the storage means. Information is read, and when the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, and the second transmission source When the transmission source indicated by the information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, the data is stored in a storage area corresponding to the second program of the storage means The mobile terminal according to claim 9, wherein the second program is stored and the second program is activated. The storage means stores permission information indicating whether or not to permit use of the data included in the HTML data by the second program;
When the data specifying information is included in the HTML data, the control means executing the management program reads the first transmission source information and the permission information from the storage means, and the first data Data in which the transmission source indicated by the transmission source information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, and the permission information is included in the HTML data The data is stored in a storage area corresponding to the second program of the storage means when indicating that the use by the second program is permitted. Mobile devices. The storage means stores a plurality of the second programs,
The HTML data includes program designation information for designating one second program from the plurality of second programs,
The control means executing the management program, only when the transmission source indicated by the transmission source information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, The mobile terminal according to any one of claims 9 to 11, wherein the data is stored in a storage area corresponding to the one second program of the storage unit. Storage means for storing programs and data;
Control means for executing the program;
A communication means for performing communication via a network,
The storage means stores a first program, a second program, a management program for managing data used in the first program and the second program,
The second program includes an entity file including an entity of the program and a description file including first transmission source information indicating a transmission source permitted to provide data used in the second program,
The first program includes a group of instructions for receiving HTML data including data designation information indicating the location of data used in the second program from the network via the communication means;
The control means executing the first program receives HTML data from the network via the communication means,
When the data specifying information is included in the HTML data, the control means executing the management program reads the first transmission source information from the storage means,
When the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, the control means executing the management program Storing the data designation information and an acquisition command for acquiring the data in a storage area corresponding to the second program of the storage means;
The control means executing the second program reads the data designation information and the acquisition instruction from a storage area corresponding to the second program, and uses the data designation information according to the read acquisition instruction. A mobile terminal that acquires the data and processes the acquired special data. The HTML data includes start instruction information for instructing start of the second program,
The storage means stores second transmission source information corresponding to the second program,
When the data specifying information and the activation instruction information are included in the HTML data, the control means executing the management program receives the first transmission source information and the second transmission from the storage means. When the original information is read, the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, and the second transmission When the transmission source indicated by the original information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, the data designation information and the acquisition command are sent to the second storage unit. The portable terminal according to claim 13, wherein the portable terminal is stored in a storage area corresponding to the program and the second program is activated. The storage means stores permission information indicating whether or not to permit use of the data included in the HTML data by the second program;
When the data specifying information is included in the HTML data, the control means executing the management program reads the first transmission source information and the permission information from the storage means, and the first data Data in which the transmission source indicated by the transmission source information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, and the permission information is included in the HTML data When the use of the second program is permitted, the data designation information and the acquisition command are stored in a storage area corresponding to the second program of the storage means. Item 15. The mobile terminal according to Item 13 or 14. The storage means stores a plurality of the second programs,
The HTML data includes program designation information for designating one second program from the plurality of second programs,
The control means executing the management program, only when the transmission source indicated by the transmission source information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, The portable terminal according to any one of claims 13 to 15, wherein the data designation information and the acquisition command are stored in a storage area corresponding to the first second program of the storage unit. The mobile terminal according to claim 2, 6, 10, or 14, wherein the description file includes the second transmission source information. A storage unit that stores a program and data; a control unit that executes the program; and a communication unit that performs communication via a network. The storage unit includes a first program, a second program, A management program for managing data used in the first program and the second program is stored, and the first program is used in the second program from the network via the communication means. Including a group of instructions for receiving an electronic mail including data designation information indicating data to be generated, and the second program is allowed to provide an entity file containing the entity of the program and data used in the second program A portable terminal including a description file including first transmission source information indicating the transmission source
The control means executing the first program receiving e-mail from the network via the communication means;
If the data designation information is included in the e-mail, the control means executing the management program reads the first transmission source information from the storage means;
When the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received e-mail, the control means executing the management program includes: Storing the data in a storage area corresponding to the second program of the storage means;
The control means executing the second program reads the data from a storage area corresponding to the second program;
A data sharing method comprising: the control means executing the second program processing the read data. A storage unit that stores a program and data; a control unit that executes the program; and a communication unit that performs communication via a network. The storage unit includes a first program, a second program, A management program for managing data used in the first program and the second program is stored, and the first program is used in the second program from the network via the communication means. Including an instruction group for receiving an e-mail including data designation information indicating the location of the data to be obtained, wherein the second program provides an entity file containing the entity of the program and data used in the second program In a portable terminal including a description file including first transmission source information indicating a transmission source for which
The control means executing the first program receiving e-mail from the network via the communication means;
If the data designation information is included in the e-mail, the control means executing the management program reads the first transmission source information from the storage means;
When the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received e-mail, the control means executing the management program includes: Storing the data designation information and an acquisition command for acquiring the data in a storage area corresponding to the second program of the storage unit;
The control means executing the second program reads the data designation information and the acquisition command from a storage area corresponding to the second program;
The control means executing the second program acquires the data using the data designation information according to the read acquisition command;
A data sharing method comprising: a step in which the control means executing the second program processes the acquired special data. A storage unit that stores a program and data; a control unit that executes the program; and a communication unit that performs communication via a network. The storage unit includes a first program, a second program, A management program for managing data used in the first program and the second program, and first transmission source information corresponding to the second program are stored, and the first program An instruction group for receiving HTML data including data used in the second program from the network via communication means, the second program including an entity file including an entity of the program; Description file including first transmission source information indicating a transmission source permitted to provide data used in the second program In the mobile terminal, including,
The control means executing the first program receiving HTML data from the network via the communication means;
When the HTML data includes the data designation information, the control means executing the management program reads the first transmission source information from the storage means;
When the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, the control means executing the management program Storing the data in a storage area corresponding to the second program of the storage means;
The control means executing the second program reads the data from a storage area corresponding to the second program;
A data sharing method comprising: the control means executing the second program processing the read data. A storage unit that stores a program and data; a control unit that executes the program; and a communication unit that performs communication via a network. The storage unit includes a first program, a second program, A management program for managing data used in the first program and the second program, and first transmission source information corresponding to the second program are stored, and the first program Including a group of instructions for receiving HTML data including data designation information indicating the location of data used in the second program from the network via communication means, and the second program stores the entity of the program. A first file indicating a transmission source that is permitted to provide an entity file and data used in the second program; In the mobile terminal including a description file that contains the original information,
The control means executing the first program receiving HTML data from the network via the communication means;
When the HTML data includes the data designation information, the control means executing the management program reads the first transmission source information from the storage means;
When the transmission source indicated by the first transmission source information matches a predetermined part or all of the information indicating the transmission source of the received HTML data, the control means executing the management program Storing the data designation information and an acquisition command for acquiring the data in a storage area corresponding to the second program of the storage unit;
The control means executing the second program reads the data designation information and the acquisition command from a storage area corresponding to the second program;
The control means executing the second program acquires the data using the data designation information according to the read acquisition command;
A data sharing method, comprising: the control means executing the second program processing the acquired data.

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