JP2006277419A - Client program delivery system, client program delivery method, delivery server - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a client program delivery system in which communication charge reduction for execution of a client program is made. <P>SOLUTION: In the client program delivery system, a delivery server 10 delivers a program to a client device 20, which executes the program. The delivery server 10 converts data necessary for execution of the program into a data setting program for performing setting processing for the data, and delivers the data setting program to the client device 20 through a communication channel established for delivering the program. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a client program distribution system that distributes a program from a distribution server to a client device such as a mobile terminal (cellular phone) and executes the program on the client device, and in particular, reduces communication costs when executing the client program. The present invention relates to a client program distribution system, a client program distribution method, and a distribution server.

  2. Description of the Related Art Client program distribution systems that distribute a program from a conventional distribution server to a client device such as a mobile terminal (mobile phone) and execute the program on the client device are widely used.

  In such a client program distribution system, first, a communication path for client program distribution is established between the distribution server and the client device, and the client program stored on the distribution server is received (downloaded) by the client device. After that, when the downloaded client program is executed on the client device, a communication channel for transmitting the initial data necessary for the execution of the client program is established, and the initial data is transmitted to the client device. A method for initial setting is adopted.

  An example of a conventional client program distribution system is described in JP-A-9-305408 (Patent Document 1).

In the technique described in Patent Literature 1, a file requesting an application is transmitted from the client computer to the server computer, and the client computer is licensed based on the application executed from the request file and license information. If it is licensed, the application is distributed to the client computer.
JP-A-9-305408

  The above-described conventional client program distribution system has an advantage that different initial data can be easily set depending on the client device executing the program by distributing the initial data as separate data simultaneously with the client program. As described above, it is necessary to establish two communication paths, such as establishment of a communication path for client program distribution and establishment of a communication path for initial data transmission.

  As described above, since it is necessary to establish two communication paths for the execution of the client program, in a transmission system that requires a cost for establishing the communication path, the communication cost increases each time the client program is executed by the client device. There was a problem.

  An object of the present invention has been made in view of the problems of the conventional techniques as described above, and is a client program distribution system and a client program distribution method capable of realizing a reduction in communication cost when executing a client program. It is to provide a distribution server.

  According to the present invention that achieves the above object, a client program distribution system that distributes a program from a distribution server to a client device and executes the program on the client device, wherein the distribution server executes the program. Necessary data is distributed to the client device as a data setting program for performing the data setting process through a communication path established for distributing the program.

  In addition, the distribution server includes conversion means for converting data necessary for execution of the program into a data setting program for performing the data setting processing.

(Work)
The client program distribution server receives a program request from the client device and distributes the program to the client device.

  When the distribution of the program is completed, the data necessary for execution of the program is converted into a data setting program for performing data setting processing, and the data setting program is converted by the communication path established for distributing the program. Delivered to the client device.

  The client device stores and executes the distributed program and the data setting program as a series of programs.

  According to the client program distribution system, client program distribution method, and distribution server of the present invention, the following effects are achieved.

  The client program can be distributed and executed only by the communication path established for distributing the client program without newly establishing a communication path for reading the initial data when the client program is executed.

  As a result, it is possible to significantly reduce the communication cost required to execute the client program in a transmission system that requires a cost for establishing a communication path.

  This is because the data of the client program distribution server is distributed together with the client program body as part of the client program.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

(Description of configuration)
FIG. 1 is a block diagram showing a configuration of a client program distribution system according to this embodiment.

  Referring to FIG. 1, the client program distribution system according to this embodiment includes a client program distribution server 10 that distributes a client program and data (initial data) necessary for its execution, and an initial client program from the client program distribution server 10. The client apparatus 20 receives and executes data, and is connected to each other via a network 30 by wire or wireless.

  The client program distribution server 10 has a function of holding a client program and data (initial data) necessary for executing the client program and distributing them to the client device 20.

  Further, the client device 20 has a function of receiving a client program and data distributed from the client program distribution server 10 and a function of executing the client program and outputting the result.

  As this client program distribution system, a mode in which a client program such as a Java (R) applet is distributed from a client program distribution server 10 to a mobile phone or the like as the client device 20 and the program is executed on the mobile phone is considered. .

  The client program distribution server 10 includes a data conversion device 11, a distribution device 12, a data storage device 13, and a program storage device 14.

  The client program distribution server 10 is realized by a general computer device including a CPU, an auxiliary storage device such as a main storage device and an HDD, and other hardware. In FIG. 2, only characteristic components of the present invention are shown, but the distribution server 10 is provided with hardware and software generally provided as a computer device in addition to the above-described components. Needless to say.

  The data storage device 13 stores initial data necessary for executing the client program. The data storage device 13 is realized by, for example, a hard disk device.

  The program storage device 14 stores client programs other than data to be distributed to the client device 20.

  The data converter 11 has a function of inputting initial data from the data storage device 13 and converting the initial data into a program execution format (data setting program).

  The execution-format data setting program converted from the initial data is executed by the program execution device 22 as a program element of the distributed client program, whereby initial data is set for the client program.

  The distribution device 12 reads the client program stored in the program storage device 14 and the data setting program converted by the data conversion device 11, and distributes it to the client device 20 via the communication path (network 30). Have

  The client device 20 includes a reception device 21, a program execution device 22, an output device 23, and a reception program storage device 24.

  The reception device 21 receives the client program and data setting program distributed from the client program distribution server 10 via the network 30 and outputs them to the reception program storage device 24.

  The program execution device 22 has a function of reading and executing a client program and a data setting program. The program execution device 22 functions as a general computer processing unit including a CPU and a main memory.

  The output device 23 is means for outputting the execution result of the client program and the data setting program, and is, for example, a liquid crystal display.

  The reception program storage device 24 stores the client program and data setting program received from the client program distribution server 10. When the client device 20 is a mobile terminal such as a mobile phone, the received program storage device 24 is realized by a small hard disk device or a flash memory.

(Description of operation)
Next, the operation of the client program distribution system according to the present embodiment configured as described above will be described in detail with reference to FIGS. 1, 2, and 3.

  FIG. 2 is a flowchart for explaining the operation in the client program distribution server 10, and FIG. 3 is a diagram for explaining the structure of the client program, initial data, and data setting program.

  First, a communication path with the client program distribution server 10 is established from the receiving device 21 of the client device 20, and a client program distribution request is made.

  The client program distribution server 10 receives the distribution request transmitted from the client device 20 by the distribution device 12 (step 201).

  Upon receiving the distribution request from the client device 20, the distribution device 12 first reads the client program body 200 (FIG. 3) requested for distribution from the program storage device 14 (step 202), and sends it to the reception device 21 of the client device 20. (Step 203).

  When the distribution of all of the client program main body 200 read from the program storage device 14 is completed (step 204), the distribution device 12 is then necessary for executing the client program main body 200 distributed to the data conversion device 11. A request for a data setting program for setting initial data is made (step 205).

  Upon receiving the request from the distribution device 12, the data conversion device 11 reads the requested initial data 100 (A1, A2 in FIG. 3) from the data storage device 13 (step 206), and sets the read initial data 100 as data setting. (Step 207), and the converted data setting program 400 (B1, B2) is sent to the distribution apparatus 12.

  The distribution apparatus 12 distributes the data setting program 400 to the reception apparatus 21 of the client apparatus 20 following the client program body 200 (step 208).

  The distribution device 12 continues distribution until all of the initial data 100 necessary for execution of the client program main body 200 is converted by the data conversion device 11.

  The reception device 21 of the client device 20 receives all of the client program main body 300 and the data setting program 400 distributed from the distribution device 12, and stores them in the reception program storage device 24 as the client program 300 (FIG. 3).

  Further, when the receiving device 21 finishes storing the client program 300 in the receiving program storage device 24, the receiving device 21 requests the program execution device 22 to execute the client program 300 stored in the receiving program storage device 24.

  The program execution device 22 reads and executes the client program 300 from the received program storage device 24 and outputs the execution result to the output device 23.

  FIG. 3 shows how the initial data 100 and the client program body 200 existing in the client program distribution server 10 of FIG. 1 are converted and distributed to the client device 20.

  First, as initial data 100 necessary for execution of the client program main body 200, for example, “data K having a value X” and “data L having a value Y” exist. These are stored in the data storage device 13 of FIG.

  The data conversion device 11 of the client program distribution server 10 sets the initial data as “set value X in data K” if the initial data 100 is “data K having value X”, for example, according to a predetermined rule. Is converted into a program element B1. Similarly, “data L having a value Y” is converted into a program element B2 for performing an initial data setting process of “setting value Y to data L”.

  The data setting program 400 is a set of program elements B1 and B2 converted from the initial data 100 necessary for execution of the client program main body 200 in this way (a set of program elements). Then, the data setting program 400 including the converted program elements B1 and B2 is distributed to the client device 20.

  On the other hand, if the client program body 200 stored in the program storage device 14 is composed of, for example, a program element A3 “displays the values of the data K and L”, the program element A3 is used for the data setting. Prior to the program 400, the client program 20 is delivered to the client device 20 as it is.

  Finally, the program elements B1 and B2 of the data setting program 400 and the program element B3 of the client program body 200 are executed as a series of client programs 300 in the client device 20 in the order of the program elements B1, B2, and B3. The

  According to the present invention, the client program is executed in the form of downloading from the distribution server. However, when the cost of the communication path for the download is high, for example, the client program is downloaded and executed on the mobile phone. Can be applied.

  For example, an example in which points accumulated by using a credit card are viewed and confirmed with a mobile phone as the client device 10 can be considered.

  A program for viewing the points from a client program distribution server 10 of a credit company that provides a credit service and a game program for breeding a game character that grows according to the number of points are distributed as a client program to a customer's mobile phone, When browsing the points or playing the game by executing the client program on the mobile phone, the initial data that is the customer's points stored in the client distribution server 10 is distributed as the data setting program 400 as described above. As a result, the program can be executed without establishing a communication path for receiving the initial data.

(Effects of the embodiment)
As described above, according to the present embodiment, the data setting program 400 obtained by converting the initial data 100 of the client program distribution server 10 is distributed together with the client program main body 300 as a part of the client program 300. It is not necessary to establish a communication path for reading initial data when executing the client program, and the client program can be distributed and executed only through the communication path established for distributing the client program. As a result, it is possible to reduce the communication cost required for executing the client program in a transmission system that requires a cost for establishing a communication path.

  Although the present invention has been described above with a plurality of preferred embodiments, the present invention is not necessarily limited to the above-described embodiments, and various modifications may be made within the scope of the technical idea. Can do.

It is a block diagram which shows the structure of the client program delivery system by this Embodiment. FIG. 2 is a flowchart for explaining the operation in the client program distribution server 10. FIG. 3 is a diagram for explaining the structure and relationship of the client program, the initial data, and the data setting program.

Explanation of symbols

10: client program distribution server 11: data conversion device 12: distribution device 13: data storage device 14: program storage device 20: client device 21: transmission / reception device 22: program execution device 23: output device 24: received program storage device 100: Initial data 200: Client program body 300: Client program 400: Data setting program

Claims (12)

A client program distribution system that distributes a program from a distribution server to a client device and executes the program on the client device,
The distribution server distributes data necessary for execution of the program as a data setting program for performing the data setting process to the client device through a communication path established for distributing the program. Client program distribution system. The distribution server is
2. The client program distribution system according to claim 1, further comprising conversion means for converting data necessary for execution of the program into a data setting program for performing the data setting process. 3. The client program distribution system according to claim 2, wherein the data setting program for performing the data setting process is a set of program elements for performing the setting process for each data. 4. The client program distribution system according to claim 1, wherein the client device executes the program and the data setting program as a series of programs. 5. The client program distribution system according to claim 1, wherein the client device is a mobile terminal. The distribution server is
Receiving a request for the program from the client device, and delivering the program to the client device;
After the distribution of the program is completed, the data conversion means converts the data necessary for the execution of the program into a data setting program for performing the data setting process,
The converted data setting program is distributed to the client terminal by a communication path established for distributing the program,
The client terminal is
6. The client program distribution system according to claim 2, wherein the distributed program and the data setting program are stored and executed as a series of programs. A client program distribution method of a client program distribution system for distributing a program from a distribution server to a client device and executing the program on the client device,
Distributing data necessary for execution of the program stored in the distribution server to the client device as a data setting program for performing the data setting processing through a communication path established for distributing the program A client program distribution method comprising: 8. The client program distribution method according to claim 7, further comprising a conversion step of converting data necessary for execution of the program in the distribution server into a data setting program for performing the data setting process. Receiving a request for the program from the client device, and delivering the program from the delivery server to the client device;
Converting data necessary for execution of the program into a data setting program for performing the data setting process after the distribution of the program is completed;
9. The client program distribution system according to claim 7, further comprising a step of distributing the converted data setting program to the client terminal through a communication path established for distributing the program. A distribution server of a client program distribution system that distributes a program from a distribution server to a client device and executes the program on the client device,
And a means for delivering data necessary for execution of the program as a data setting program for performing the data setting process to the client device through a communication path established for delivering the program. Distribution server. 11. The distribution server according to claim 10, further comprising conversion means for converting data necessary for execution of the program into a data setting program for performing the data setting processing. Means for accepting a request for the program from the client device and delivering the program to the client device;
Means for converting data required for execution of the program after completion of distribution of the program into a data setting program for performing setting processing of the data;
12. The distribution server according to claim 10, further comprising means for distributing the converted data setting program to the client terminal through a communication path established for distributing the program.

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