JP2006259849A - Portable terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal device capable of simultaneously managing a number of Java applications even if a storing capacity of an integrated storage device is small. <P>SOLUTION: This portable terminal device executing a Java application program composed of a Java application execution file, and a Java application management file, comprises a storage portion 24 for storing the Java application management file, a control portion 36 controlling the execution of the Java application program, and selecting at least one Java application management file among the Java application management files stored in the storage portion 24, and an external interface 40 for inputting the Java application execution file corresponding to the Java application management file selected by the control portion 36, to the control portion 36. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a portable terminal device that embeds and executes a Java application.

  In recent years, development of electronic devices incorporating Java (trademark registration number No. 4108642), which is an object-oriented programming language, has been widely performed, and currently the most popular among electronic devices incorporating the execution environment of Java. Mobile terminal devices such as mobile phones can be raised.

  In order to acquire a Java application, a mobile terminal device that incorporates Java often downloads the Java application from a server that records the Java application. When the mobile terminal device downloads a Java application (corresponding to the application program in the claims), the Java application execution file (an object-oriented program file) in which the main program of the application is described (in the claims) A Java application management file for managing an object-oriented program (corresponding to an object-oriented program file) and a Java application execution file (for example, data capacity, download destination URL, version information, etc.) (Corresponding to a management file for managing object-oriented programs in the range). A Java application execution file generally has a larger data capacity than a Java application management file. Thereafter, a Jar (Java archive) file that is a Java application execution file is referred to as xxx. jar, a Java application descriptor (Jad) file that is a Java application management file is xxx. It is described as jad.

  After downloading these two types of Java application files, the portable terminal device refers to the description in the Java application management file and installs the Java application execution file. The number of applications that can be installed is determined by the capacity range of the storage device of the mobile terminal device.

  However, since the conventional portable terminal device has a small storage capacity of the built-in storage device and the Java application execution file has a large data size, the number of Java applications that can be managed simultaneously is limited. For this reason, in order to install a new Java application, it may be necessary to sequentially delete Java applications that have already been installed.

  The present invention has been made in view of the above-described conventional circumstances, and an object of the present invention is to provide a portable terminal device that can simultaneously manage many Java applications even if the storage capacity of the built-in storage device is small. .

  A portable terminal device of the present invention is a portable terminal device that executes an application program including an object-oriented program file and a management file that manages the object-oriented program, and controls execution of the application program Program control means, management file storage means for storing the management file, management file selection means for selecting at least one management file among management files stored in the management file storage means, and management file selection Execution file input means for inputting an object-oriented program file corresponding to the management file selected by the means to the program control means, the program control means read from the management file storage means, A management file selected by management file selection means, the execution file input unit object-oriented program is input from a file, by and controls the execution of the application program constituted.

  In the portable terminal device of the present invention, the execution file input unit inputs an object-oriented program file read from an external storage device to the program control unit.

  With this configuration, only the Java application management file is retained, and more Java applications can be managed in a limited storage area of the mobile terminal device.

  The portable terminal device of the present invention further includes an execution file storage unit that stores the object-oriented program file read by the execution file input unit, and the program control unit includes a management file read from the management file storage unit, And an object-oriented program file read from the execution file storage means for controlling execution of an application program.

  According to this configuration, since the Java application execution file is stored in the execution file storage means in the portable terminal device, the Java application can be started immediately without downloading the Java application execution file from the external storage device. it can.

  The portable terminal device according to the present invention includes one in which the program control unit deletes the object-oriented program file stored in the execution file storage unit in accordance with a preset condition.

  According to this configuration, since the Java application execution file stored in the mobile terminal device can be efficiently deleted, the storage area of the execution file storage unit can be effectively used.

  According to the portable terminal device of the present invention, many Java applications can be managed simultaneously even if the storage capacity of the storage device built in the device is small.

  Next, a communication system will be described as an example of an embodiment of the present invention. FIG. 1 shows an example of a communication system according to an embodiment of the present invention. The communication system includes a mobile terminal device 10, a base station 18 that performs wireless communication with the mobile terminal device 10, and a Web server 22 that receives access from a base station or a relay station.

  The mobile terminal device 10 transmits and receives data to and from the base station 18 through wireless communication via an antenna provided in the mobile terminal device 10. The mobile terminal device 10 includes a storage device 12 such as a memory and an HDD, and stores various data including data transmitted and received by wireless communication with the base station 18.

  For example, the base station 18 transmits and receives data to and from the mobile terminal device 10 through wireless communication via an antenna provided in the base station 18. In addition, it is connected to a Web server 22 that implements HTTP (Hyper Text Transport Protocol) and accepts access by a Web (World Wide Web) browser having a domain name such as “http://www.xxx.co.jp”. Yes.

  The Web server 22 is configured as follows. jar, B.M. jar, C.I. jar, D.C. jar's Jar file 201 (A, B, C, D correspond to file names), and A. jad, B.M. jad, C.I. jad, D.J. A storage device 20 for storing a Jad Jad file 202 (A, B, C, D corresponds to a file name) is provided. A. jar and A.J. Jad is paired, and the file names B, C, and D are also paired in the same manner.

  An outline of processing at the time of installing various Java applications of the mobile terminal device 10 in this communication system will be described. When installing various Java applications, the mobile terminal device 10 first downloads only the Jad file from the Web server 22 via the base station 18 and stores the A.D. jad, B.M. jad, C.I. jad, D.J. Jad Jad file 122 is stored.

  The mobile terminal device 10 includes the downloaded Jad file 122, A.I. jad, B.M. jad, C.I. jad, D.J. A Java application list corresponding to jad is displayed on the display 14, and the mobile terminal device user is prompted to select one from the Java application list.

  Thereafter, when the mobile terminal device 10 executes a Java application selected from the Java application list, a Jar file paired with the Jad file is stored from the Jad file corresponding to the selected Java application. The information (for example, URL information) of the Web server 22 is read, and the Jar file is downloaded from the Web server 22. In FIG. 1, the application A is selected from the Java application list, and a Jar file 121 for executing the application A, A. A schematic diagram when Jar is downloaded is shown.

  As described above, since the files to be held in the storage device 12 of the mobile terminal device 10 are only the Java application execution file being executed and the Java application management file of various Java applications, the storage of the limited storage device 12 is limited. Many Java applications can be managed in the area.

(First embodiment)
Hereinafter, the portable terminal device according to the first embodiment of the present invention will be described in detail. FIG. 2 is a block diagram showing the configuration of the mobile terminal device according to the first embodiment of the present invention.

  The mobile terminal device 10 according to the first embodiment includes a storage unit 24, a program execution unit 32, a display unit 34, a control unit 36, an operation unit 38, and an external interface 40. The storage unit 24 stores at least one Jad file 26, 28, 30, and a storage device such as a memory or an HDD can be used (corresponding to a management file storage unit and an execution file storage unit in claims). The program execution unit 32 executes the program output from the control unit 36. The display unit 34 displays various types of information in accordance with output signals from the program execution unit 32 or the control unit 36. The operation unit 38 is configured by, for example, operation keys and receives an operation input from a user of the mobile terminal device. The external interface 40 outputs data from an external storage device outside the mobile terminal device 10 (including data received via a communication line, data read from a storage medium, etc.) to the control unit 36 (execution of claims) Equivalent to file input means). The control unit 36 outputs a control signal corresponding to the input signal from each unit described above, and controls the processing of each unit (corresponding to the program control unit and the management file selection unit in the claims).

  The main control of the control unit 36 is to control the Jad file input via the external interface 40 to be output to the storage unit 24 and written to the storage unit 24, or the Jad stored in the storage unit 24. Control to read the file and display information about the read Jad file on the display unit 34, or a Jar file input via the external interface 40, a Jad file read from the storage unit 24, Is output to the program execution unit 32, and the program execution unit 32 is controlled to execute the Java application.

  Hereinafter, the flow of processing when downloading the Java application management file by the mobile terminal device of the first embodiment will be described. FIG. 3 is a flowchart when the Java application management file is downloaded by the mobile terminal device according to the first embodiment of the present invention. The external interface 40 has a communication function for connecting various networks to the mobile terminal device. Hereinafter, a case where a Java application is downloaded from the Web server 22 using this communication function will be described.

  When the control unit 36 activates a browser for the Internet and displays it on the display unit 34 and receives an instruction to download a Java application at a specific URL from the browser information (S1), the specific URL And the external interface 40 is controlled to download the Jad file at the URL (S2). The external interface 40 downloads the Jad file from the storage device 20 of the Web server 22 to which the URL information is addressed (S3). Next, when the download is completed (S4, YES), the control unit 36 stores the downloaded Jad file in the storage unit 26 (S5). The control unit 36 further stores the URL information in the storage unit 24 in association with the downloaded Jad file (S6).

  By repeating the download processing of the Java application management file, a plurality of Java application management files and URL information corresponding to the Java application management files are stored in the storage unit 24.

  FIG. 4 shows an example of a Jad file. This figure is a Jad that describes the contents, behavior, etc. of a Java application using MIDlet, which is one of the Java application formats, in a format defined by MIDP (Mobile Information Device Profile), which is a Java specification for small terminals. Indicates the format of the file. Here, the size of the Jar file (MIDlet-Jar-Size) is 1470 bytes, the title is TestApp, the startup class name is TestApp, and the Jar file name (MIDlet-Jar-URL) is TestApp. jar, the configuration name (MicroEdit-Configuration) is CLDC-1.0, the version number (MIDlet-Version) is 1.0 version, the introduction URL notification (MIDlet-Install-notify) is http: // test, and the application name (MIDlet) -Name) is TestApp, the description name (MIDlet-Description) is TestApp, the vendor name (MIDlet-Vendor) is Panasonic, and the profile file name (MicroEdit-Profile is) MIDP-1.0.

  Next, the flow of processing when the Java application is executed by the mobile terminal device according to the first embodiment will be described. FIG. 5 is a flowchart when the Java application is executed by the mobile terminal device according to the first embodiment of the present invention.

  When the control unit 36 receives an operation for instructing to execute the Java application by the operation unit 38, first, for example, an application name (MIDlet-Name in FIG. 4) is obtained from each of the plurality of Jad files stored in the storage unit 24. The application name list is read and displayed on the display unit 34 (S10). When the control unit 36 detects that the selection operation for selecting any Java application in the list displayed on the display unit 34 has been received by the operation unit 38 (S11), the control unit 36 corresponds to the selected Java application. The file name of the Jar file paired with the Jad file (MIDlet-Jar-URL in FIG. 4) is read from the file, and corresponds to the Jad file stored in step S6 in FIG. The external interface 40 is controlled to read the URL information and download the Jar file at the URL (S12).

  The external interface 40 downloads the Jar file from the storage device 20 of the Web server 22 to which the URL information is addressed (S13). Next, when the download is completed (S14, YES), the control unit 36 outputs the Jar file downloaded by the external interface 40 and the Jad file read from the storage unit 24 to the program execution unit 32, and the program execution unit 32 is controlled to execute the Java application (S15).

  As described above, according to the mobile terminal device of the first embodiment of the present invention, the files to be held in the storage device 12 of the mobile terminal device 10 are the Java application execution file being executed, the Java application management file of various Java applications, Since there is no need to store Java application execution files that are not executed, many Java application management files are stored in the storage area of the limited storage device 12, and many Java applications are managed. can do. For this reason, as in the past, in order to install a new Java application, it is possible to solve the problem that the already installed Java application must be sequentially deleted.

  In the description of the mobile terminal device of the first embodiment, the case where a Java application is downloaded from the Web server 22 by the communication function of the external interface 40 has been described. However, the external interface 40 is not limited to this function. However, the present invention can be realized by any function that can input the Java application management file and the Java application execution file to the control unit 36. Other examples of the external interface 40 include removable storage media such as an SD card and memory, and communication functions such as short-range wireless, infrared communication, and wireless LAN.

(Second Embodiment)
Hereinafter, the mobile terminal device according to the second embodiment of the present invention will be described in detail. FIG. 6 is a block diagram showing the configuration of the mobile terminal device according to the second embodiment of the present invention.

  The difference between the first embodiment and the second embodiment is that the storage unit 24 of the mobile terminal device of the second embodiment has a storage area that temporarily holds a plurality of Jar files 42. Hereinafter, the flow of processing when the Java application is executed by the mobile terminal device of the second embodiment will be described. FIG. 7 shows a flowchart when a Java application is executed by the mobile terminal device according to the second embodiment of the present invention. Note that the flow of processing when downloading the Java application management file by the mobile terminal device of the second embodiment is the same as that of the first embodiment, and thus the description thereof is omitted. Further, the processing of each unit other than the storage unit 24 and the control unit 36 is the same as that of the first embodiment, and thus description thereof is omitted.

  When the control unit 36 detects that the selection operation for selecting any Java application in the list displayed on the display unit 34 is received by the operation unit 38 in the process of step S11, the control unit 36 selects the selected Java application. It is detected whether the Jad file corresponding to is stored in the storage unit 24 (S111). If stored in the storage unit 24 (S111, NO), the control unit 36 reads the Jad file and the Jar file from the storage unit 24, outputs the read files to the program execution unit 32, and the program execution unit 32 To execute the Java application (S15).

  When the Jad file that is paired with the Java application management file selected in step S11 is not stored in the storage unit 24 (S111, YES), the control unit 36 performs step S12 described in the first embodiment. Control is performed from the process to the process of step S14. When the download of the Jar file is completed (S14, YES), the control unit 36 displays a screen prompting whether or not to store the downloaded Jar file in the storage unit 24 on the display unit 34, and prompts the user to select. Thereafter, when the control unit 36 detects that the operation unit 38 has received an operation for instructing to store the Jar file (S112, YES), the control unit 36 stores the downloaded Jar file in the storage unit 24 (S113), and step S15. Move on to processing.

  As described above, according to the mobile terminal device of the second embodiment of the present invention, by providing the storage unit 24 with a storage area for storing Jar files, a predetermined number of Java application execution files, such as recently used Jar files, Since it is stored in the storage unit 24, the Java application can be started immediately without being downloaded from the Web server 22.

(Third embodiment)
Hereinafter, the portable terminal device of 3rd Embodiment of this invention is demonstrated in detail. FIG. 7 is a block diagram showing the configuration of the mobile terminal device according to the third embodiment of the present invention.

  The difference between the second embodiment and the third embodiment is that the control unit 36 of the third embodiment deletes the Jar file stored in the storage unit 24 according to a predetermined condition in addition to the control function of the second embodiment. It has the function to do. Note that the flow of processing when downloading a Java application management file and the flow of processing when executing a Java application by the mobile terminal device of the third embodiment are the same as those of the second embodiment, and thus description thereof is omitted. To do. In addition, since the processing of the configuration other than the storage unit 24 and the control unit 36 is the same as that of the first embodiment, description thereof is omitted.

  For example, the control unit 36 refers to the Jad file, reads the Java application usable time limit, deletes the Jar file that has exceeded the usable time limit from the storage unit 24, or has passed a certain period of time since the download of the Jar file. In such a case, the Jar file is deleted from the storage unit 24, and further, the downloaded Jar file is deleted from the storage unit 24 according to preset conditions that allow deletion or not.

  As mentioned above, according to the portable terminal device of 3rd Embodiment of this invention, since the Jar file memorize | stored in the memory | storage part 24 can be deleted efficiently, the memory area of the memory | storage part 24 can be used effectively. it can. Further, by making the Jar file stored in the storage unit 24 erasable or impossible according to the conditions set by the user of the mobile terminal device, the storage area of the storage unit 24 can be effectively used while the user's It is possible to immediately start a Java application that is set to be undeleteable.

  Note that the present invention is not limited to the above-described embodiment, and it is obvious that the embodiment can be appropriately changed within the scope of the technical idea of the present invention.

  According to the portable terminal device of the present invention, even if the storage capacity of the storage device built in the device is small, it is possible to manage many Java applications at the same time, and a portable terminal that embeds and executes Java applications. Useful in the device.

An example of a communication system according to an embodiment of the present invention The block diagram which shows the structure of the portable terminal device of 1st Embodiment of this invention. The flowchart at the time of the download of the Java application management file by the portable terminal device of 1st Embodiment of this invention An example of a Jad file The flowchart at the time of Java application execution by the portable terminal device of 1st Embodiment of this invention The block diagram which shows the structure of the portable terminal device of 2nd Embodiment of this invention. The flowchart at the time of Java application execution by the portable terminal device of 2nd Embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mobile phone 12 Storage device 121 Java application execution file 122 Java application management file 14 Display 18 Base station 20 Storage device 201 Java application execution file 202 Java application management file 22 Web server 24 Storage unit 26, 28, 30 Java application management file 32 Program execution unit 34 Display unit 38 Operation unit 40 External I / F
42 Java application executable file

Claims (4)

A portable terminal device that executes an application program composed of an object-oriented program file and a management file that manages the object-oriented program,
Program control means for controlling execution of the application program;
Management file storage means for storing the management file;
Management file selection means for selecting at least one of the management files stored in the management file storage means;
An execution file input means for inputting an object-oriented program file corresponding to the management file selected by the management file selection means to the program control means,
The program control means executes an application program that is read out from the management file storage means and is composed of a management file selected by the management file selection means and an object-oriented program file input from the execution file input means A mobile terminal device for controlling. The mobile terminal device according to claim 1,
The execution file input unit is a portable terminal device that inputs an object-oriented program file read from an external storage device to the program control unit. The mobile terminal device according to claim 2,
Execution file storage means for storing the object-oriented program file read by the execution file input means,
The portable control device for controlling the execution of an application program including the management file read from the management file storage and the object-oriented program file read from the execution file storage. The mobile terminal device according to claim 3,
The program control unit is a portable terminal device that deletes an object-oriented program file stored in the execution file storage unit according to a preset condition.

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