WO2004077302A1

WO2004077302A1 - Data accumulation apparatus

Info

Publication number: WO2004077302A1
Application number: PCT/JP2003/002068
Authority: WO
Inventors: Masafumi Maekawa; Hisatoshi Miura; Jin Shibata; Yumiko Arai; Kiyotaka Koyama
Original assignee: Fujitsu Limited
Priority date: 2003-02-25
Filing date: 2003-02-25
Publication date: 2004-09-10

Abstract

A data accumulation apparatus includes first acceptance means for accepting a data download request from a user terminal, download means for downloading the data to be downloaded according to the request accepted by the first acceptance means from its location via a cable network, storage means for storing the data downloaded by the download means, second acceptance means for accepting the request for downloading data stored in the storage means from the user terminal, and transmission means for reading out the data accepted by the second acceptance means from the storage means and transmitting the data to the user terminal.

Description

Data storage device Technical field

The present invention relates to a system for storing and managing data desired by a user in a mobile communication network in a device different from a terminal device used by the user.

The present invention relates to an apparatus constituting a system. book

Background art

Conventionally, there is a system in which a client downloads data from a server. In such a system, the client specifies the data to be downloaded to the server and requests the download. When the server receives the download request, it starts downloading the specified data to this client.

Such downloading is performed via a network connecting the client and server. The client makes a download request to the server via the network. Also, the server downloads to the client over the network. There are various forms of networks used for downloading.

When the client is a mobile communication terminal, the client is communicably connected to the server via a wireless network composed of base stations and the like. Hereinafter, a case where the client is a mobile communication terminal will be described. As a specific example of such a network form, there is an i-mode (registered trademark) service provided by NTT DoCoMo (see Non-Patent Document 1). In the i-mode service, the i-mode terminal (client) downloads data directly from the provider site over a network connected to the provider site via the Internet.

In this way, the traditional client downloads data from the server. In such a case, the download was performed directly via a communication channel such as the Internet. That is, a conventional client directly stores data to be downloaded from a server in a storage device provided in the own device (client).

[Patent Document 1]

Patent No. 3 285 5 498

[Patent Document 2]

Japanese Patent Application Laid-Open No. H10-103692

[Non-Patent Document 1]

"About creating i-αppli contents", [online], Internet <URL: http: // www. nttdocomo. co. jp / p_s / imode / Java / index, html

However, in a wireless network composed of base stations and the like, communication may be interrupted due to the state of radio waves. If the communication was lost while the client was downloading data from the server, the client needed to download the data to be downloaded again. At this time, the download may have to be restarted from the beginning regardless of the amount of data actually downloaded in the previous communication (communication that was interrupted). In such a case, the data size of the downloaded data is the sum of the data size downloaded in the previous communication and the data size downloaded in the current communication (the communication that was downloaded again). For this reason, the size of the downloaded data is larger than the data size of the data to be originally downloaded. Therefore, in the data communication of the pay-as-you-go system, the user must pay extra data communication. Also, the time required for downloading increases. Disclosure of the invention

An object of the present invention is to solve such a problem and to provide a download system and a download device capable of stably downloading data from a server regardless of whether the radio wave condition is good or bad. .

In order to solve the above problem, the present invention has the following configuration. First of the present invention An aspect is a data storage device, comprising: first receiving means for receiving a request for downloading data from a user terminal; and transmitting data to be downloaded received by the first receiving means to a wired network from its location. Download means for downloading data via the download means, storage means for storing data downloaded by the download means, and second reception means for receiving a request for downloading the data stored in the storage means from the user terminal. And transmitting means for reading the data received by the second receiving means from the storage means and transmitting the data to the user terminal.

The data storage device according to the first aspect of the present invention is connected to a server at a data location via a wired network. For example, a data storage device is installed in a central office system. It is desirable that the data storage device be connected to the server where the data is located only via a wired network. In this case, since the data storage device is connected to the server only via a wired network, communication with the server is more stable than a mobile communication device connected to the server via a wireless network. Can be realized as

In a first aspect according to the present invention, the first accepting means accepts a request for downloading data stored in the server from the user terminal. Here, the user terminal is, for example, a mobile communication device, and the server is an information processing device that stores and publishes content including music data, image data, and character data. The first accepting means accepts a request for downloading data included in the content stored in such a server. The first receiving means may be configured to store the contents of the download request. Examples of the contents of such a request include a URL (Uniform Resource Locator) indicating the location of the data and the start date and time or start time of the download.

The download means executes a download according to the content of the request received by the first reception means. The download means writes the data downloaded from the server to the storage means. At this time, the download means may be configured to compress the downloaded data and write the compressed data into the storage means.

The storage unit stores the data downloaded by the download unit. The storage unit may be configured to store the compressed data when the download unit performs compression.

The second receiving means receives a request for downloading data stored in the storage means from the user terminal. Then, the transmitting unit reads data from the storage unit in accordance with the content of the request received by the second receiving unit, and transmits the read data to the user terminal.

Therefore, according to the first aspect of the present invention, even if the user terminal is a mobile communication device and the radio wave condition is poor, the user can download the server data to the data storage device. By requesting, it is possible to carry out stable downloads regardless of the radio wave condition.

Further, the first receiving means of the first aspect according to the present invention receives a request in which the location of the data to be downloaded and the date and time at which the download is to be performed are specified, and the downloading means comprises: From the location of the data accepted by the means, the data may be downloaded at the date and time when the download is executed.

The first receiving means of the first aspect of the present invention issues a reception number and a password to a user terminal when receiving a request, and the second receiving means is transmitted from the user terminal. The data download request may be received only when the reception number and password match the reception number and password issued by the first reception unit.

Moreover, the first aspect according to the present invention may be configured so as to further include an end notification unit that notifies the user terminal that the download has ended when the download by the download unit ends.

Further, the storage unit of the first aspect according to the present invention may be configured to store data compressed by the download unit.

In a first aspect of the present invention, among the data stored in the storage unit, a list of data requested to be downloaded by the user terminal is created, and the created list is transmitted to the user terminal. It may be configured to further include a list transmitting unit. Further, a first mode according to the present effort is to store a storage period of each data stored in the storage unit, and to a user terminal that requests a down-load of the data for the data whose storage period has elapsed. On the other hand, it may be configured to further include a time limit management unit that requests download or deletion of this data.

Further, the first aspect according to the present invention, further comprises a third reception unit for receiving a request for uploading data from the user terminal, wherein the storage unit stores the upload received by the third reception unit. It may be configured to further store the data uploaded by execution.

A second aspect according to the present invention is a data storage system, comprising: a mobile communication device capable of communicating with a central office switching network by wireless communication; a server capable of communicating with the central office switching network by wire communication; A data storage device capable of communicating with a network by wire communication, wherein the first reception unit receives a request to download data stored in the server from a mobile communication device, and the first storage unit receives the request. Download means for downloading the downloaded data from the server; storage means for storing the data downloaded by the download means; and a request for downloading the data stored in the storage means from the mobile communication device. The second reception means and the data received by the second reception means are read from the storage means. Transmitting means for transmitting the data to the mobile communication device.

A third aspect according to the present invention is a data storage device, comprising: first receiving means for receiving a data upload request from a user terminal; and uploading by executing the upload received by the first receiving means. Storage means for storing the received data; second reception means for receiving a request for downloading the data stored in the storage means from the user terminal; and data received by the second reception means. Transmitting means for reading out from the storage means and transmitting to the user terminal.

A fourth aspect according to the present invention is a data communication apparatus, comprising: download means for downloading data from a server; storage means for storing data downloaded by the download means; Acquiring means for acquiring the data size of the data to be loaded; determining means for determining whether a storage area of the data size acquired by the acquiring means can be secured in a free storage area of the storage means; If it is determined that the data cannot be secured by the determining means, the data stored in the storing means is uploaded to a data storage device via a network, and the storage area of the data size obtained by the obtaining means is uploaded. Upload means for securing.

A data communication device according to a fourth aspect of the present invention is an information processing device capable of communicating with a data storage device and a server. The data storage device may have any configuration as long as it can communicate with the data communication device according to the present invention and can store data uploaded from the data communication device.

According to a fourth aspect of the present invention, the download unit downloads data stored in the server and writes the downloaded data to the storage unit provided in the own device.

The obtaining means obtains the data size of the data to be downloaded by the downloading means. The acquisition means inquires of the server about the data size of the data to be downloaded before the download is executed by the download means, and acquires the data size.

The determination means determines whether or not the free space of the data size acquired by the acquisition means can be secured in the storage means provided in the own device. The determination means executes this determination before the download by the download means is executed, and transmits the determination result to the upload means.

The upload means reads the data from the storage means when the determination by the determination means cannot be ensured, and uploads the read data to another storage device via the network, that is, the data storage device. The uploading means selects the data stored in the storing means so that the free storage area of the storing means is equal to or larger than the data size acquired by the acquiring means, and uploads the selected data. Then, the upload unit deletes the selected data from the storage unit provided in the own device, and secures a free storage area. The upload unit secures a free storage area before the download by the download unit is executed. Therefore, according to the fourth aspect of the present invention, the user can download new data without worrying about the amount of data to be downloaded from the server and the free space of the storage unit of the own device. Becomes possible. Then, the user can use the data uploaded by the upload means by downloading it again from the data storage device to the own device.

According to a fifth aspect of the present invention, there is provided a data communication device having storage means for storing data to be downloaded, a step of acquiring a data size of data to be downloaded, and a step of: Judging whether or not it is possible to secure the data in the free storage area of the storage means, and when it is determined that the data cannot be secured, the data stored in the storage means is transmitted to another apparatus having the storage means. The program is a program for executing a step of securing a storage area of the acquired data size in the storage means and a step of downloading data from a server, which are uploaded via a network.

According to a sixth aspect of the present invention, there is provided a mobile communication device capable of communicating with the central office switching network by wireless communication, a server capable of communicating with the central office switching network by wire communication, and communicating with the central office switching network by wired communication. A data storage system including a data storage device, wherein the mobile communication device includes: download means for downloading data from a server; storage means for storing data downloaded by the download means; Acquiring means for acquiring the data size of data downloaded by the acquiring means, and determining whether or not a storage area of the data size acquired by the acquiring means can be secured in a free storage area of the storage means. And data stored in the storage means when it is determined that the data cannot be secured by the determination means. Uploading means for uploading data to the data storage device and securing a storage area of the data size obtained by the obtaining means, wherein the data storage device receives a data upload request from a mobile communication device. One receiving means, a storage means for storing data uploaded by executing the upload received by the first receiving means, and a download of data stored in the storage means from the mobile communication device. Second receiving means for receiving the request, and storing the data received by the second receiving means in the storage device. Transmitting means for reading from a stage and transmitting to the mobile communication device. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a diagram showing the basic principle of the data storage system.

FIG. 2 is a diagram showing a function block of the V-data storage server.

FIG. 3 is a diagram showing an overview of user management information.

FIG. 4 is a diagram showing an example of an operation sequence of the data storage system.

FIG. 5 is a diagram showing an example of an operation sequence of the data storage system.

FIG. 6 is a diagram showing an example of an operation sequence of the data storage system.

FIG. 7 is a diagram showing an operation sequence example of the data storage system. BEST MODE FOR CARRYING OUT THE INVENTION

Next, an apparatus according to an embodiment of the present invention will be described with reference to the drawings. The description of the present embodiment is an exemplification, and the configuration of the present invention is not limited to the following description.

〔System configuration〕

FIG. 1 is a diagram showing the basic principle of the data storage system 1 of the present invention. According to FIG. 1, the client 2 includes a wireless communication device and can communicate with another device via the base station 6. Hereinafter, the configuration of the data storage system 1 according to the present invention will be described using FIG.

The data storage system 1 is composed of a client 2, a data storage server 3, a WWW server (World Wide Web server) 4, a central office switch 5, a base station 6, and the like. Hereinafter, each configuration of the data storage system 1 will be described.

The client 2 is configured using an information processing device capable of communicating with the central office 5 via the base station 6. The client 2 is configured by using, for example, a mobile phone, a PHS (Personal Handyphone System), a PDA (Personal Digital Assistants), a nano computer, or the like. When the client 2 is configured using an information processing device such as a PDA or a personal computer, the client 2 includes a wireless communication device such as a mobile phone or a PHS that can communicate via the base station 6. Client 2 is Data is transmitted / received to / from the WWW server 4 and the data storage server 3 installed in the central office switching system via the base station 6 and the central office 5 using wireless communication by the communication device.

The client 2 may be configured so that the upload program according to the present invention is installed. The following describes the upload program.

(<Upload program>)

When the upload program is installed on the client 2, the client 2 operates as a device including a data size check unit and an upload unit.

The data size confirmation unit acquires the data size of the data that is about to be downloaded from the WWW server 4 by the client 2. This data size is obtained, for example, by the data size confirmation unit inquiring the WWW server 4. The data size checking unit compares the obtained data size with the free storage capacity of the storage device of the own device 2, and determines whether all data to be downloaded to the free storage area of the storage device of the own device 2 can be stored. Determine whether or not. That is, the data size confirmation unit determines whether or not a free storage area of the acquired data size can be secured in the storage device of the own device 2. If the data size check unit determines that the data cannot be stored (cannot be secured), it notifies the upload unit of the upload execution instruction and the required data size. The required data size indicates the data size of data that must be deleted from this storage device in order to secure a free storage area of the acquired data size in the storage device of the own device 2.

When notified of the upload execution instruction, the upload unit selects data from the storage device according to the notified required data size, and uploads the selected data to the data storage server 3. The upload unit deletes the uploaded data from the storage device when the data upload is completed.

The client 3 stores the data number and password notified of the uploaded data from the data storage server 3 in association with the data name of the uploaded data. Of the data indicated by this data name by the user. When the use is selected, the client 3 sends the data number and password stored in association with the data name and the registration ID stored in the client 3 to the data storage server, and downloads necessary data. .

For this reason, the user of the client 3 can download the data without worrying about the free storage capacity of the storage device provided in the client 3.

The data storage server 3 is configured using a personal computer, a workstation, or the like. The data storage server 3 is installed in the central office switching system network. Thus, unlike the client 2, the data storage server 3 can perform stable data communication without depending on the radio wave condition.

FIG. 2 is a diagram showing functional blocks of the data storage server 3. The configuration of the data storage server 3 will be described using FIG. The data storage server 3 includes a CPU, a main memory (RAM), an auxiliary storage device (such as a hard disk) connected via a bus in terms of hardware. The data storage server 3 is configured such that the various programs (OS, applications, etc.) stored in the auxiliary storage device are loaded into the main memory and executed by the CPU, so that the transmission / reception unit 7, the user management unit 8, the schedule management It functions as a device that includes section 9, download section 10 and data storage section 11.

<<Transceiver unit>)

The transmission / reception unit 7 controls data communication between the own device 3 and another device. The transmission / reception unit 7 is configured using a communication device such as a network interface board. Transceiver

7 transmits and receives data to and from the WWW server 4 and the client 2 via the central office 5 and the base station 6. Upon receiving data from the outside (such as the WWW server 4 or the client 2), the transmitting / receiving unit 7 passes the received data to the user management unit 8 or the download # 10.

<<User Management Department>>

The user management unit 8 manages user management information. The user management unit 8 registers and deletes registration data for download reserved by the user. Further, the user management unit 9 controls upload performed by the user. The user management unit 8 is configured using a CPU, a RAM, and the like, and a nonvolatile storage device. Here, the non-volatile storage device includes, for example, an EPROM (Erasable Programmable Read-Only Memory) and an EEPROM (Electrically Erasable Programmable Read-Only Memory). Point to. The user management unit 8 stores user management information on each user registered in the own device 3.

FIG. 3 is a diagram showing an outline of the user management information. The user management information will be described using FIG. The user management information is stored in the user management unit 8 in a one-to-one relationship with the registered ID. User management information for a user is retrieved using the registration ID assigned to a user.

The user management information includes the user's contact information (telephone number and mail address, etc.) as terminal information, the number of registered data, and registered data. The user's contact information is notified to the user management unit 8 by the user. The same number of registered data as the number of registered data is stored. For example, in FIG.3, n pieces of registration data are stored. Therefore, "n" is stored in the number of registered data. A data number is assigned to each registered data. The data number is an identifier for uniquely identifying each registered data in one piece of user management information. An upper limit is set for the number of registered data for each user. This upper limit can be changed at any time according to the contract with the user.

Next, the registration data will be described. The registration data includes the registration date, registration URL, storage period, download start time, password, download data size, and storage address. Before the data is downloaded, the registration data exists as reservation information for downloading the data. On the other hand, registered data exists as management information for downloaded data (compressed data) after the data has been downloaded.

The registration date indicates the date and time when the registration data was registered. That is, the registration date indicates the date and time when the download instruction was registered by the user. The registration date is automatically registered by the user management unit 8. The registration URL is specified by the user. The registration URL has a URL as a value. The registration URL indicates content data stored in the WWW server 4, for example. The data of the URL indicated by the registered URL is downloaded by the download unit 10 at the date and time indicated by the download start time.

The storage period indicates a period in which the data (file) indicated by the storage destination address is stored (saved) in the data storage unit 11. For the storage period, the time during which storage is continued (for example, 5 hours, 3 days, etc.) may be stored as a value, or the date and time when storage is ended may be stored as a value. The registered data whose storage period has expired is deleted by the user management unit 8. At this time, the compressed data of the data storage unit 11 corresponding to the storage address of the registered data is also deleted by the user management unit 8.

The download start time indicates the date and time when the download of the data specified in the registration URL starts. The download start time is specified by the user. However, when not specified by the user (when the specification is omitted by the user), the download start time is set to an arbitrary value by the user management unit 8. For example, the value of the current time is set as the download start time. The download unit 10 downloads registered data whose download start time has passed. Therefore, when the user designates the immediate start of the download, the user management unit 8 registers the current time or a date and time earlier than the current time as the download start time.

The password has a character string such as alphanumeric characters. The password is set individually for each registered data. The password is automatically generated and registered by the user management unit 8. After the password is registered, it is sent to Client 2. The contents of certain registered data (including the contents of the compressed data indicated by the storage destination address) are determined when the registration ID and password transmitted by the client match both data stored as user registration information. Only the user refers to -Change / Download.

The download data size indicates the size of the compressed data indicated by the storage address. In the present embodiment, the data stored in the data storage unit 11 is compressed. For this reason, the download data size is the size of the compressed data. Indicates the size. The download data size is notified by the download unit 10 via the schedule management unit 9.

An upper limit is set for the download data size. This upper limit can be changed at any time according to the contract with the user. In addition, an upper limit value is set for each user in the total value of the download data size included in one piece of user management information. This upper limit can also be changed at any time according to the contract with the user.

The storage destination address indicates the address of the data storage area of the data storage unit 11. The storage destination address indicates an address in which data indicated in the registered URL downloaded at the download start time is stored. In addition, the 'storage address' may indicate an address where data uploaded by the user is stored. For example, when the user desires to download data registered as registration data to the client 2, the data (compressed data) stored in the address indicated by the storage destination address of the registration data is provided to the user. You. The storage destination address is notified by the download unit 10 via the schedule management unit 9.

When the user management unit 8 is notified of the download data size, storage destination address, and registration URL from the download unit 10 via the schedule management unit 9, the user management unit 8 is notified using the notified registration URL as a key. Search the registered data to register the downloaded data size and storage destination address. The user management unit 8 writes the notified download data size and storage destination address in the searched registered data. At this time, the user management unit 8 notifies the end of the download (reserved) registered in the registration data to the contact information (e-mail address and telephone number) of the user registered in the user management information. I do.

Also, when the user management unit 8 is notified by the schedule management unit 9 that there is registered data whose storage period is approaching, a download reminder is transmitted to the user of the registered data (search by registration ID). Notification that the storage period is imminent. The user management unit 8 transmits the download reminder notification including the data list. At this time, the user management unit 8 creates a data list so that data corresponding to the data number notified by the schedule management unit 9 is highlighted. Data list is all registered data registered in user management information Includes information about For example, the data list is configured to include a data number, a download data size, and a storage period.

When the user management unit 8 receives the download request from the client 2, that is, when the user requests to download the pressure data stored in the data storage unit 11 to the client 2, the user management information Refers to the storage address contained in. At this time, the user management unit 8 searches the registration data using the data number notified by the user as a key, and refers to the storage address included in the registration data. Then, the user management unit 8 reads out the compressed data indicated by the storage destination address, and transmits the data to the client 2 used by the user.

Further, when receiving the data upload request from the client 2, the user management unit 8 updates the user management information based on the received upload request. The user management unit 8 searches for user management information to be updated using the registration ID included in the upload request as a key. The user management unit 8 generates new registration data for the searched user management information. At this time, the user management unit 8 registers an identifier indicating upload from the user as a registration URL. The data uploaded from client 2 is processed by download unit 10. When notified of the data size of the compressed data, the storage destination address, and the identifier indicating the upload from the download unit 10, the user management unit 8 searches the registered data using the identifier as a key. . For this reason, this identifier is set so as not to be duplicated in the user management information of a certain user. Then, the user management unit 8 registers the data size and the storage address of the uploaded data in the searched registered data.

<<Schedule Management Department>>

Return to the explanation using FIG.2. The schedule management unit 9 refers to the user management information, and manages the timing (schedule) of downloading and transmitting a download reminder.

The schedule management unit 9 is configured using a CPU, a RAM, and the like. The schedule management unit 9 determines the download start time of each registered data included in the user management information. See The schedule management unit 9 acquires the current date and time, and compares the acquired current date and time with the download start time. When there is a download start time indicating a date and time earlier than the current date and time among the download start times, the schedule management unit 9 instructs the download unit 10 to start downloading the registered data. At this time, the schedule management unit 9 notifies the download unit 10 of the registration URL included in the registration data.

Further, when the schedule management unit 9 is notified of the download data size, the storage destination address, and the registration URL from the download unit 10, the schedule management unit 9 notifies the user management unit 8 of the notified three data.

In addition, the schedule management unit 9 periodically refers to the storage period included in the user management information (for example, at a fixed time every day or at 0 hour every hour). If there is registered data whose storage period is currently approaching 3:00 (for example, registered data whose remaining storage period is 3 days or several hours), the schedule management unit 9 includes the data number of this registered data and this registered data The user management unit 8 is notified of the registration ID of the user management information.

<<Download part>>

The download unit 10 compresses the downloaded data or the uploaded data and writes the data in the data storage unit 11.

The download unit 10 is configured using a CPU, a RAM, and the like. The download unit 10 downloads the data of the URL (registered URL) notified from the schedule management unit 9. The download unit 10 downloads, for example, data stored in the WWW server 4. The download data section 10 stores the downloaded data or the uploaded data in its own RAM. The download data section 10 compresses the data that has been downloaded or uploaded, that is, the data stored in its own RAM, and writes it to the data storage section 11. Any existing compression means may be applied to the compression performed by the download data unit 10. At this time, the download data section 10 measures the data size of the compressed data. The download data section 10 stores the measured data size and the data write destination address (the data storage section 11). To the schedule management unit 9 together with the notified registration URL.

<<Data storage unit>>

The data storage unit 11 stores data downloaded or uploaded by the download unit 10.

The data storage unit 11 is configured using a nonvolatile storage device such as a hard disk. The data storage unit 11 stores the data compressed by the download unit 10 as compressed data. If necessary, the data storage unit 11 can be provided as an external device of the data storage server 3 in a housing different from the transmission / reception unit 7, the user management unit 8, the schedule management unit 9, and the download unit 10 good.

The WWW server 4 is configured using information processing devices such as a personal computer and a workstation / server dedicated machine. The WWW server 4 stores contents including various data such as music data and image data. The WWW server 4 publishes various stored data in a downloadable state on the WWW. The WWW server 4 may be installed in the central office switching network, or may be installed on the Internet. The content of the WWW server 4 includes a menu for downloading the data included in the content to the data storage server 3.

The central office 5 may be configured using any commonly used exchange. The central office 5 constitutes a central office switching system (intra-office switching network).

The base station 6 may be configured using any commonly used base station. The base station 6 transmits and receives data to and from the client 2 by wireless communication. Further, the base station 6 transmits and receives data to and from the central office 5 by wire communication or wireless communication. The base station 6 mediates data transmission and reception between the client 2 and the central office 5 by wireless communication.

[Operation sequence example]

4 to 7 show an example of an operation sequence of the data storage system 1 according to the present invention. FIG. FIGS. 4 to 7 show a case where the data storage unit 11 is provided as an external device of the data storage server 3 as an example. First, steps 1 to 3 in the operation sequence example of the data storage system 1 will be described using FIG. In the following description, when the client 2 communicates with the data storage server 3, the communication is always performed via the central office 5 and the base station 6. When the WWW server 4 and the data storage server 3 communicate, the communication is always performed via the central office 5.

In the procedure 1, the processing when the user accesses the data storage server 3 for the first time using the client 2 and the processing for registering the download reservation in the data storage server 3 are executed.

First, the user uses the client 2 to transmit a down-registration registration request and a user information registration request to the storage server 3. At this time, the user uses the client 2 to send the contact information such as telephone number and mail address, the URL of the data to be downloaded, and the date and time when the download is executed to the storage server 3. I believe. However, the user can omit the transmission of the date and time when the download is executed. The download registration request includes the URL of the data and the date and time when the download is performed. The user information registration request includes the user's contact information.

In the storage server 3, the user management unit 8 registers the user management information and the registration data based on the received information, and notifies the client 2 of the generated registration ID, password, and data number. Specifically, the user management unit 8 of the storage server 3 transmits a download registration completion notification and a user registration completion notification to the client 2. At this time, the user registration completion notification includes the registration ID. The download registration completion notification includes the registration ID, password, and data number.

Upon receiving the user registration completion notification and the download registration completion notification, the client 2 stores the received registration ID, password, and data number. At this time, Client 2 associates the password with the data number for convenience. Step 1 assumes that the user accesses the data storage server 3 for the first time. Has been described. If the user is not accessing for the first time, the processing for the user information registration request and the user registration completion notification is omitted.

In step 2, the storage server 3 executes the download based on the contents of the registration data of the user management information registered by the user.

First, the schedule management unit 9 of the storage server ₃ refers to the download start time included in the registration data of the user management information. If the registered data of the user management information includes the registered data to start the download, the schedule management unit 9 instructs the download unit 10 to start the download. Upon receiving the download start instruction, the download unit 10 downloads the URL data notified together with the download start instruction. In FIG. 4, download # 10 downloads data stored in WWW server 4. The download unit 10 compresses the downloaded data and writes (copies) the compressed data to the data storage unit 11. The download unit 10 notifies the user management unit 8 via the schedule management unit ₉ of the address of the write destination of the compressed data, the data size of the compressed data, and the URL of the data as a download completion notification.

When receiving the download completion notification from the download unit 10, the user management unit 8 registers the notified data size and the address of the data storage unit 11 in the registration data corresponding to the notified URL. The user management unit 8 transmits a download completion notification including the data number of the registration data and the registration ID to the client 2. This download completion notification is executed to the telephone number or e-mail address registered in the user management information as a contact. .

In step 3, the client 2 downloads the compressed data downloaded from the WWW server 4 by the data storage server 3 from the data storage unit 11. The client 2 sends a download request for the data number selected by the user to the data storage server 3. The client 2 stores the data number selected by the user in association with the data number. Password and registration ID included in the download request and sent.

Upon receiving the download request, the user management unit 8 of the data storage server 3 searches the registered data using the data number and the registration ID included in the download request as keys. The user management unit 8 compares the password included in the retrieved registration data with the password included in the download request and confirms whether they match. If they do not match, the user management unit 8 notifies the client 2 of an error. On the other hand, when the two passwords match, the user management unit 8 reads out the compressed data corresponding to the storage destination address included in the registered data from the data storage unit 11. Then, the user management unit 8 transmits the read compressed data to the client 2.

When the client 2 receives the compressed data from the data storage server 3, the client 2 stores the received compressed data. The user decompresses the compressed data using the client 2 and obtains the target data.

Next, steps 4 to 6 in the operation sequence example of the data storage system 1 will be described using FIG.

In step 4, using the client 2, the user browses a list of the user's own data (compressed data stored in association with the registered ID of the user) among the data stored in the data storage server 3.

The user transmits a data list display request to the data storage server 3 using the client 2. The data list display request includes the registration ID of this user.

Upon receiving the data list display request, the user management unit 8 of the data storage server 3 searches for user management information corresponding to the registration ID included in the data list display request. The user management unit 8 creates a data list of the registration data included in the searched user management information, and transmits the created data list to the client 2.

When receiving the data list from the data storage server 3, the client 2 displays the received data list.

<Step 5)

In step 5, the data storage server 3 stores the registered data whose storage period is imminent. Notify the user that there is.

First, the schedule management unit 9 of the data storage server 3 refers to the storage period included in the user management information periodically (for example, every day). When there is registration data whose storage period is approaching, the schedule management unit 9 notifies the user management unit 8 of the registration data. When the user management unit 8 is notified from the schedule management unit 9 that there is registered data for which the storage period is imminent, a download reminder including the registration ID and data number of the registered data is sent to the user management unit 8. And sends it to the client 2 of the user. The download reminder includes a data listing.

When the client 2 receives the download reminder, the client 2 displays the received data list. Client 2 highlights the registered data whose storage period is imminent in the data list by highlighting it. The user refers to the data list and executes download or deletion of the registered data.

In step 6, the user uses the client 2 to request the data storage server 3 to delete the registration data.

First, the user transmits a download data deletion request to the data storage server 3 using the client 2. The download data deletion request includes the registration ID of the user, the data number of the registration data that the user wants to delete, and the password stored in association with this data number.

Upon receiving the download data deletion request, the user management unit 8 of the data storage server 3 searches for the registration data to be deleted using the data number and the registration ID included in the download data deletion request as keys. The user management unit 8 compares the password included in the searched registration data with the password included in the download data deletion request, and confirms whether they match. If they do not match, the user management unit 8 notifies the client 2 of an error. On the other hand, when the two passwords match, the user management unit 8 deletes the compressed data corresponding to the storage destination address included in the registration data from the data storage unit 11. User Management Department Next, the registered data is deleted from the user management information, and the number of registered data is corrected (1 is subtracted). Then, the user management unit 8 transmits a download data deletion response to the client 2 to notify the user that the data has been deleted. The download data deletion response includes the registration ID and the data number of the deleted registration data.

When the client 2 receives the download data deletion response, the client 2 displays that the data has been deleted and notifies the user. The client 2 deletes the data number included in the received download data deletion response and the password stored in association with the data number from its own storage device.

Next, procedure 7 of the operation sequence example of the data storage system 1 will be described using FIG. In step 7, the user uploads the data stored in the storage device of the client 2 to the data storage server 3.

First, the user sends a data upload request to the data storage server 3 using the client 2. The data upload request includes a registration ID.

Upon receiving the data upload request, the user management unit 8 of the data storage server 3 requests the client 2 to transmit the data to be uploaded. When the client 2 is requested to transmit data, the client 2 requests the user to select data to be uploaded. The user selects the data to be uploaded from the data stored in the storage device of the client 2. The client 2 starts to upload the selected data to the data storage server 3.

The download unit 10 of the data storage server 3 compresses the uploaded data and writes (copies) the compressed data to the data storage unit 11. Then, the data storage server 3 transmits an upload completion message including the registration ID, the password, and the data number to the client 2 via the central office 5. In the above procedure 7, it is assumed that the user already has the user management information in the data storage server 3 by transmitting the user information registration request. However, the user may not have the user management information in the data storage server 3 in some cases. in this case By transmitting a user information registration request together with an upload request using the client 2 as in step 1, the user management information is newly registered and the processing is executed normally.

In step 7 above, the data upload is executed by the user instructing the client 2 to upload the data.However, the data size confirmation unit and the upload unit of the client 2 automatically perform the data upload. The same procedure applies when uploading is performed.

Next, procedure 8 of the operation sequence example of the data storage system 1 will be described using FIG. In step 8, the user downloads the content data to the data storage server 3 as a menu provided on the content of the WWW server 4 accessed using the client 2.

First, the user uses the client 2 to access the content requested to be downloaded. For example, the user accesses the content provided by the WWW server 4 using the client 2.

In the content provided by the WWW server 4, as a download menu, a download to the data storage server 3 as well as a download to the client 2 is displayed so as to be selectable. When the user selects downloading to the data storage server 3 using the client 2, a screen for selecting data to be downloaded is displayed. On this screen, for example, a list of data included in the content being accessed by the user is displayed. When the data is selected by the user, a screen is displayed requesting the user to enter the registration ID. These screens are displayed by the client 2 as part of the content provided by the WWW server 4. When the registration ID is input, the WWW server 4 transmits a download request including the URL of the selected data and the input registration ID to the data storage server 3.

The user management unit 8 of the data storage server 3 searches for user management information using the registration ID included in the received download request as a key. The user management unit 8 registers new registration data for the searched user management information. This registration data In the URL, the URL included in the received download request is registered as the registration URL. Also, for example, the current time is set as the download start time. Thereafter, the same processing as in step 2 is performed.

In step 8 above, it is assumed that the user already has the user management information in the data storage server 3 by transmitting the user information registration request. However, the user may not have the user management information in the data storage server 3 in some cases. In this case, by transmitting the user information registration request together with the upload request using the client 2 as in step 1, the user management information is newly registered, and the process is executed normally. At this time, the input of the user's contact information and the like is performed on the content provided by the WWW server 4. Then, the registration: 1D, password, etc. are included in the content provided by the WWW server 4 and notified to the client 2 and displayed as a part of the content.

[Action / Effect]

According to the present invention, the data storage server 3 is installed in the central office switching system network that does not depend on the radio wave condition. Then, the user can download desired data to the data storage server 3 instead of the client 2 which is a mobile communication device owned by the user. Therefore, even if the user is in an environment where continuous communication connection is difficult (for example, an environment with poor radio wave conditions), desired data can be stably downloaded to the data storage server 3. It becomes. Also, when the user moves to an environment where continuous communication connection is possible (for example, an environment with good radio wave conditions), the user can download desired data from the data storage server 3 to the client 2 of the user again. It becomes possible. For example, the present invention is effective when the environment where the user is located is an environment where continuous communication connection is difficult even though there is data that needs to be downloaded in a certain period of time. is there.

Further, according to the present invention, the user management unit 8 of the data storage server 3 stores the download start time as setting data of the user management information so as to be settable. Then, the download unit 10 downloads the data specified in the registration URL according to the download start time. Therefore, the user can reserve the download to the data storage server 3 in advance. Therefore, the user For example, it is possible to reliably download data from URLs whose access is restricted by time of day.

Further, according to the present invention, the menu of the content provided by WWW server 4 includes a menu for selecting to download data included in the content to data storage server 3. Therefore, the user can immediately set the data storage server 3 to download the data included in the content to the data storage server 3 while browsing a certain content. Further, in this case, since the user does not need to input the URL to be downloaded, the user can save time and effort.

Further, according to the present invention, the data storage server 3 transmits the list information of the stored data to the client 2 of the user, thereby notifying the existence of the data whose storage period is imminent. Therefore, before the data is deleted due to the elapse of the storage period, the user can know in advance the existence of data whose storage period is approaching.

Further, according to the present invention, a user can upload data stored in his / her client 2 to the data storage server 3. Further, according to the present invention, if the client 2 determines that a storage area for storing data downloaded to the own device by the user cannot be secured in the own device, the client 2 automatically stores the data in the own device. Upload any data to the data storage server 3. For example, if the client 2 is a small portable terminal typified by a mobile phone, the data size that can be stored in this terminal is limited because the storage capacity of the storage device is small. . However, by uploading such data of the client 2 to the data storage server 3, the storage area of the client 2 is secured without losing this data. Therefore, the user can download and use new data in the secured storage area.

Further, according to the present invention, the download unit 10 of the data storage server 3 compresses the downloaded or uploaded data and writes it to the data storage unit 11. Then, the user downloads the compressed data from the data storage server 3 using the client 2. As a result, communication volume is reduced and communication costs are reduced. It becomes possible. Also, the user can repeatedly download this data.

(Modification)

In the present embodiment, the case where data is downloaded from the WWW server 4 has been described as an example. The data may be configured to be downloaded.

Further, in the data storage server 3, when all the registered data is deleted from the user management information of a certain user, the user management information itself may be deleted. At this time, the registration ID of this user is also deleted.

Also, a password corresponding to the registration ID indicating the user management information may be provided. This password is a password provided separately from the password corresponding to each registered data, and is further included in download requests, data list display requests, download data deletion requests, data upload requests, and the like. This password is different from the password check for registration data, and a password check for registration ID is also performed.

In the present embodiment, the registered data is uniquely identified in the data storage server 3 using the registered URL, but may be configured to be identified by using the data number.

In addition, data download performed by the data storage server 3 (for example, download from the WWW server 4) may be performed at a fixed time every day without setting a download start time by a user. good. In this case, the user management information is configured not to include the download start time. Industrial applicability

INDUSTRIAL APPLICABILITY The present invention is applicable to an industry that provides a data download service using a mobile communication device in a mobile communication system.

Claims

The scope of the claims

1. first receiving means for receiving a data download request from a user terminal; download means for downloading the data to be downloaded received by the first receiving means from its location via a wired network; Storage means for storing data downloaded by the download means;

Second receiving means for receiving a request for downloading data stored in the storage means from the user terminal;

Transmitting means for reading data received by the second receiving means from the storage means and transmitting the data to the user terminal;

A data storage device comprising:

2. The first receiving means receives a request specifying the location of the data to be downloaded and the date and time at which the download is to be performed,

The download unit executes data download at the time of executing the download from the location of the data received by the first reception unit.

The data storage device according to claim 1.

3. The first reception unit issues a reception number and a password to the user terminal when receiving the request,

The second accepting unit accepts a data download request only when the receipt number and password transmitted from the user terminal match the receipt number and password issued by the first receiving unit.

The data storage device according to claim 1 or 2.

4. The data storage device according to any one of claims 1 to 3, further comprising an end notification unit that notifies the user terminal that the download has ended when the download by the download unit has ended.

5. The data storage device according to claim 1, wherein the storage unit stores data compressed by the download unit.

6. Of the data recorded in the storage means, the user terminal down The data storage device according to any one of claims 1 to 5, further comprising: a list transmitting unit that generates a list of data requested to be transmitted to the user terminal and transmits the generated list to the user terminal.

7. The storage period of each data stored in the storage means is stored, and for the data whose storage period has elapsed, the time limit management for requesting the user terminal requesting the download of this data to download or delete this data. The data storage device according to any one of claims 1 to 6, further comprising means.

8. A third reception means for receiving a data upload request from the user terminal is further provided.

The storage unit further stores data uploaded by execution of the upload received by the third reception unit.

A data storage device according to any one of claims 1 to 7.

9. A mobile communication device capable of communicating with the central office switching network by wireless communication,

A server capable of communicating with the central office switching network by wire communication,

A data storage device capable of communicating with the central office switching network by wire communication, wherein the first receiving unit receives a request to download data stored in the server from a mobile communication device, and the first receiving unit. Download means for downloading data received by the download means from the server; storage means for storing data downloaded by the download means; and download of data stored in the storage means from the mobile communication device. A data storage device, comprising: a second reception unit for receiving the request of (a), and transmission means for reading data received by the second reception means from the storage means and transmitting the data to the mobile communication device. Data storage system including.

10. A first receiving means for receiving a data upload request from a user terminal;

Storage means for storing data uploaded by execution of the upload received by the first reception means;

Second receiving means for receiving a request for downloading data stored in the storage means from the user terminal; Transmitting means for reading data received by the second receiving means from the storage means and transmitting the data to the user terminal;

A data storage device comprising:

1 1. Download means for downloading data from the server,

Storage means for storing data downloaded by the download means;

Acquiring means for acquiring a data size of data downloaded by the download means;

Determining means for determining whether or not the storage area of the data size obtained by the obtaining means can be secured in a free storage area of the storage means;

If it is determined that the data cannot be secured by the determining means, the data stored in the storage means is uploaded to a data storage device via a network, and the data size obtained by the obtaining means is obtained. Upload means to secure storage space for

A data communication device comprising:

1 2. obtaining a data size of data to be downloaded to a data communication device having storage means for storing data to be downloaded;

Determining whether a storage area of the acquired data size can be secured in a free storage area of the storage means;

If it is determined that it is impossible to secure the data, the data stored in the storage unit is uploaded to another device having the storage unit via a network, and the storage area of the acquired data size is stored in the storage unit. Steps to secure

Downloading data from the server and

A program that executes

1 3. A mobile communication device capable of communicating with the central office switching network by wireless communication,

A data storage system including the central office switching network and a data storage device capable of communicating by wire communication,

The mobile communication device includes a download unit that downloads data from a server. A stage, storage means for storing data downloaded by the download means, acquisition means for acquiring the data size of the data downloaded by the download means, and a data size of the data acquired by the acquisition means. Determining means for determining whether or not a storage area can be secured in a free storage area of the storage means; and when the determining means determines that the storage area cannot be secured, data stored in the storage means is stored in the storage means. Uploading means for uploading to the data storage device and securing a storage area of the data size obtained by the obtaining means, wherein the data storage device receives a data upload request from a mobile communication device. A first reception unit for attaching the application and executing the upload received by the first reception unit. Storage means for storing the data uploaded by the mobile communication device, second reception means for receiving a request for downloading the data stored in the storage means from the mobile communication device, and second reception means. A transmission unit that reads the received data from the storage unit and transmits the data to the mobile communication device.