JPH11164055A - System for transferring data to distant place terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data transfer system with which a terminal can acquire information stored at a domestic server and can utilize it by connecting the terminal and domestic server mutually separated away through a public line network. SOLUTION: A terminal 102 performs dial-up connection from a nearby access point 105 through a provider 106 to an internet 107 while using a public line network 103 and requests transfer from a domestic server 101 to a transfer mediating means 401. The transfer mediating means 104 transfers the transfer processing request from the terminal 102 by connection through the closest access point 104 of the domestic server 101 to the domestic server 101 while using the public line network 103, and connects the domestic server 101 to the internet 107. The domestic server 101 edits/compresses the data corresponding to the transfer processing request and sends these data through the internet to the terminal 102 while using the IP address of the terminal 102 registered in an address managing means 402 at the provider 106.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transferring digital information such as AV (music / video) information between a server and a terminal far apart from each other at a low communication cost by using a public network. Related to data transfer system.

[0002]

2. Description of the Related Art In recent years, the number of users connecting from the home to the Internet has increased due to the use of service providers that connect to the Internet via a public line network. In addition, the number of users who not only obtain information by accessing a WWW server on the Internet but also build their own homepage is increasing, and the usage form of the Internet is going to continue to develop.

When connecting to the Internet from a personal computer in a general home through a public line network, a telephone is connected to an access point provided by a connection service provider, and an IP address is dynamically assigned by a host of the Internet connection service provider. Accordingly, major services of the Internet such as WWW can be received.

[0004] Various modes of a communication system conventionally used for transferring data between a server and a terminal will be described below. FIG. 14 shows an example of the configuration of a system for performing one-to-one connection between a server and a terminal via a public line network to transfer data. The terminal 1102 is connected to the home server 1101 via the public line network 1103. The terminal 1102 and the home server 1101 have different telephone numbers. The terminal 1102 requests the home server 1101 for network connection. The home server 1101 establishes a one-to-one network connection with the terminal 1102 in response to the network connection request. When the network connection is established, the terminal 1102 makes a call to the server 1101 for the A stored in the server 1101.
Request transfer of V data. The server 1101 transfers AV data to the terminal 1102 in response to a request. The terminal 1102 executes a reproduction process of the transferred AV data and displays the same on a screen.

FIG. 15 shows an example of a system configuration in a case where data is transferred between a server and a terminal via the Internet. In FIG. 15, reference numeral 1104 denotes a terminal capable of communication through a dial-up connection using a public line network. Reference numeral 1105 denotes a public line network. Reference numeral 1108 denotes a connection service provider that mediates connection between the public line network 1105 and the Internet 1109 via an access point. 1107 is a connection service provider 110
8 is an access point provided. Reference numeral 1110 denotes a WWW server connected to the Internet 1109.

The terminal 1104 is a connection service provider 1
A public line 1105 is used to connect to an access point 1105 provided by 108. Connection service provider 1
108 dynamically allocates an IP address to terminal 1104 so that terminal 1104
Connected to. The terminal 1104 connects to the WWW server 1110 using the IP address assigned to the WWW server 1110 connected to the Internet, and transmits arbitrary data stored in the WWW server 1110 to the protocol HT.
Acquire using TP.

FIGS. 16 and 17 show a conventional example of an Internet telephone. In FIG. 16, 1111 and 111
Reference numeral 2 denotes a call terminal that can be connected to the Internet 1117 through a dial-up connection using a public line network.
3 is a public network. Reference numeral 1116 denotes a connection service provider that mediates connection between the public line network 1113 and the Internet 1117 via an access point. 1114 and 1115 are connection service providers 11
17 is an access point provided. Reference numeral 1118 denotes a call terminal I provided by the connection service provider 1116.
It is a user server that manages the P address.

[0008] The call terminal 1111 is connected to the public line network 11 via the access point 1114 by dial-up connection.
13 connects to the Internet 1117. At this time,
The access point 1114 dynamically assigns an IP address to the call terminal 1111 and registers the assigned IP address in the user server 1118. The user of the call terminal 1112 can access the access point 11 by dial-up connection.
15 from the public line network 1113 to the Internet 1
117. After completing the dial-up connection, the user connects the call terminal 1112 to the user server 1118,
The IP address of the call terminal 1111 is obtained. By specifying the IP address of the call terminal 1111, the call terminal 1111 is connected.

In FIG. 17, reference numerals 1121 and 1122 denote telephone terminals using a public line, and reference numeral 1123 denotes a public line network. Reference numeral 1126 denotes an Internet telephone relay service provider that mediates a connection between the public line network 1123 and the Internet 1127. 1124, 112
5 is an Internet telephone relay service provider 112
7 is a gateway provided.

First, the user designates the telephone number of the gateway 1124 from the call terminal 1121 and
3 to the gateway 1124. After the connection is completed, the telephone number of the call terminal 1122 is designated using the push button of the call terminal 1121. The gateway 1124 that has received the telephone number of the communication terminal 1122 specifies the gateway 1125 near the communication terminal 1122 and notifies the gateway 1125 of the telephone number of the communication terminal 1122 via the Internet 1127. The notified gateway 1125 specifies the telephone number of the call terminal 1122 and connects to the call terminal 1122 via the public line network 1123. After the connection is completed, the signal transmitted from the call terminal 1121 is protocol-converted by the gateway 1124 and transferred to the gateway 1125 via the Internet 1127.
The gateway 1125 that has received the above signal converts the protocol and converts the protocol into the call terminal 11 through the public line network 1123.
22. Conversely, the signal transmitted from the call terminal 1122 is protocol-converted by the gateway 1125, transferred to the gateway 1124 via the Internet 1127, and the gateway 1124 receiving the signal converts the protocol to the call terminal 1121 through the public line network 1123. Forward.

[0011]

The various modes relating to the connection between the terminal and the server as described above have their respective drawbacks as described below. First, in the one-to-one connection mode shown in FIG. 14, when the distance between the terminal and the home server is long, that is, when the communication fee between remote locations is charged, the communication cost is reduced. Hard to use from a point of view.

In the configuration shown in FIG. 15, the server needs to have a static IP address and be constantly connected to the Internet. In that case, the communication cost charged for constant connection through the public line network is enormous for individual use, which is not realistic.

In the case of an Internet telephone having the configuration shown in FIG. 16, there is a problem that the terminal of the other party needs to connect to the Internet in advance and register an IP address in the user server, so that the call target is limited. .

In the case of the Internet telephone having the configuration shown in FIG. 17, the charge for the call can be made by charging between the gateway and the call terminal adjacent to each other. However, since the system is dedicated to the call, the communication between the WWW server and the WWW browser HTTP at
A separate communication system is required for data transfer using, for example.

In view of the above-mentioned problems of the conventional communication system, the present invention connects a terminal far away from the home server to a home server via a public line network, and transmits information stored in the home server to a low communication level. It is an object of the present invention to provide a data transfer system that a terminal can acquire and use at a low cost.

[0016]

A first configuration of a data transfer system to a remote place according to the present invention comprises an information storage means for connecting to a network through a public line network, and a terminal device for connecting to the network through a public line network. A connection mediating means for mediating a connection to the network via the public line network, and a temporary storage means for temporarily storing information flowing on the network, and the terminal device is connected to the network through the public network by the connection mediating means. Connecting, requesting data transfer by adding the telephone number of the information storage means to the connection mediation means, the connection mediation means makes a network connection with the information storage means corresponding to the telephone number through a public line network, The storage means transfers information corresponding to the data transfer request to the connection mediation means, and the transferred data is stored in the temporary storage means. And acquiring the information terminal device is stored from the temporary storage means.

According to such a configuration, the communication cost required for data transfer is the communication fee between the information storage means and the neighboring connection mediating means, and the communication cost between the terminal device and the neighboring connection mediating means. Only communication billing is required. Therefore, even if the distance between the information storage means and the terminal device is long, the communication cost can be reduced.

Preferably, the information storage means notifies the terminal device of the completion of the transfer via the public network after the information transfer processing to the connection mediation means is completed. This allows the user to know the processing status of the information storage device at a long distance while keeping the communication cost low.

It is also preferable that the terminal device requests the data transfer by adding a use ID to the connection mediation means, and the connection mediation means specifies the telephone number of the information storage means from the use ID. Also in this case, it is preferable that the information storage unit notifies the terminal device of the transfer end via the public line network after the information transfer process to the connection mediation unit is completed.

A second configuration of the data transfer system according to the present invention comprises an information storage means for connecting to a network via a public line network, a terminal device for connecting to the network via a public line network, and a connection for connecting to the network via a public line network. The terminal device is dynamically assigned a network address by the connection mediating means, connects to the network through the public network, and adds the telephone number of the information storage means to the connection mediating means. Requesting a connection intermediation to the server, the connection intermediary means makes a network connection to the information storage means corresponding to the telephone number through a public network, notifies the information storage means of the network address of the terminal device, and the information storage means Connects to the terminal device using the notified network address, and sends information to the terminal device. Characterized in that it transfer.

Also in this configuration, the communication cost required for data transfer is only the communication charge between the information storage means and the neighboring connection mediation means, and the communication charge between the terminal device and the neighboring connection mediation means. Thus, even if the distance between the information storage means and the terminal device is long, the communication cost can be kept low. Preferably, the terminal device requests the data transfer by adding the use ID to the connection mediation means, and the connection mediation means specifies the telephone number of the information storage means from the use ID.

A third configuration of the data transfer system according to the present invention comprises information storage means for connecting to a network via a public line network, a terminal device for connecting to the network via a public line network, and a connection for connecting to the network via a public line network. The terminal device connects to the network through the public line network by the connection mediating means,
Requests connection mediation to the information storage means by adding the telephone number of the information storage means to the connection mediation means, and the connection mediation means dynamically assigns a network address of the information storage means corresponding to the telephone number to the public. Network connection through a circuit network, notifying the terminal device of the network address of the information storage means, connecting the terminal device to the information storage means by the notified network address, and acquiring information from the information storage means. I do.

Also in this configuration, the cost for data transfer is only the communication charge between the information storage means and the neighboring connection mediation means, and the communication charge between the terminal device and the neighboring connection mediation means. Therefore, even if the distance between the information storage means and the terminal device is long, the communication cost can be reduced. Preferably, the terminal device requests the data transfer by adding a use ID to the connection mediation means, and the connection mediation means uses the use ID.
Identify the telephone number of the information storage means from.

A fourth configuration of the data transfer system according to the present invention comprises an information storage means for connecting to a network via a public network, a terminal device for connecting to the network via a public network, and a connection to the network via a public network. A connection mediating means for mediating, and a temporary storage means for temporarily storing information flowing on the network, wherein the information storing means is connected via the connection mediating means when a data transfer is requested from the terminal device through the public network. A terminal is connected to a network through a public line network and transfers information to a temporary storage unit, and the terminal device is connected to the network through a public line network and acquires information stored in the temporary storage unit.

[0025] Also in this configuration, the cost of data transfer is only the communication charge between the information storage means and the neighboring connection mediation means, and the communication charge between the terminal device and the neighboring connection mediation means. Therefore, even if the distance between the information storage means and the terminal device is long, the communication cost can be reduced. Further, it is preferable that, after ending the information transfer processing to the connection mediation means, the information storage means notify the terminal device of the transfer end via the public network.

A fifth configuration of the data transfer system according to the present invention has information storage means for connecting to a network through a public line network, and means for connecting to two or more public lines, and connects to the network through a public line network. A terminal device, and connection mediation means for connecting to the network through the public line network, wherein the terminal device is dynamically assigned a network address by the connection mediation device, connects to the network through the public network, and assigns the assigned network address to the network. A network address obtained from the connection mediation means and assigned to the information storage means using a public line different from the public line used for connection to the network is notified to the information storage means. Through the network via the network Connected through a network to a terminal device with less, and wherein the transfer of stored information to the terminal device.

[0027] Also in this configuration, the cost for data transfer is only the communication charge between the information storage means and the neighboring connection mediation means, and the communication charge between the terminal device and the neighboring connection mediation means. Therefore, even if the distance between the information storage means and the terminal device is long, the communication cost can be reduced.

In a sixth configuration of the data transfer system according to the present invention, there are provided means for connecting to two or more public lines, information storage means for connecting to a network through a public line network, and connection to a network through a public line network. The information storage means includes a terminal device and connection mediation means for connecting to a network through a public line network. When the terminal device requests data transfer through the public line network, the network address is dynamically assigned by the connection mediation means to the public Connect to the network through the network, obtain the network address assigned by the connection mediation means,
The terminal device is notified of the network address assigned using a public line different from the public line used for connection to the network, and the terminal device is connected to the network through the public line network by the connection mediation means and notified. It is characterized in that it is connected to the information storage means using the network address, and the information stored in the information storage means is obtained.

Also in this configuration, the cost for data transfer is only the communication charge between the information storage means and the neighboring connection mediation means, and the communication charge between the terminal device and the neighboring connection mediation means. Therefore, even if the distance between the information storage means and the terminal device is long, the communication cost can be reduced.

[0030]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 shows the configuration of a data transfer system according to Embodiment 1 of the present invention. In FIG. 1, 10
Reference numeral 1 denotes a server installed in the home, which has a communication function of connecting to a public network. The server stores data such as AV stream data and has a data editing function. Reference numeral 102 denotes a terminal which can be connected to a public network by a mobile phone or the like, and has a function of communication over a network and a function of displaying and displaying data such as AV stream data.
Reference numeral 103 denotes a public network, reference numeral 106 denotes a connection service provider that mediates connection between the public network and the Internet, and reference numeral 104 denotes an access point near the area of the home server 101 provided by the connection service provider 106.
05 is a terminal 1 provided by the connection service provider 106
The access point 107 near the area where 02 is located is the Internet. Reference numeral 108 denotes a cache server for temporarily storing information prepared by the connection service provider.

It is assumed that the area between the area of the user who uses the terminal 102 and the area where the home server is installed is a long distance to which international telephone or telecommunication billing is applied over a public network. The terminal 102 connects to a nearby access point 105 through the public network 103 according to an input from the user, and requests a dial-up connection to the Internet 107. The access point 105 provided by the connection service provider 106 is a terminal 1 connected to a public line network.
02 is dynamically assigned an IP address, whereby the terminal 102 connects to the Internet 107.

After connecting to the Internet, the user operates the Internet 1 provided by the connection service provider 106.
07 of the cache server 108 connected to
A connection is specified by specifying the address from the terminal 102, and a transfer processing request is transmitted. FIG. 2 shows the contents of the transfer processing request. In FIG. 2, reference numeral 201 denotes a command indicating a data transfer processing request, reference numeral 202 denotes a telephone number of the home server 201 to be used, reference numeral 203 denotes a telephone number of the terminal 102,
Reference numeral 204 denotes a file name of the AV stream data to be acquired. Reference numeral 205 denotes attribute information, which has contents specifying a frame rate and instructing editing of AV stream data. After the transmission of the transfer request is completed, the user temporarily ends the connection between the terminal 102 and the access point 105. The cache server 108 that has received the transfer request specifies the access point 104 that controls the telephone number 202 included in the transfer request, and transfers the transfer request.

The access point 10 that has received the transfer request
Reference numeral 4 denotes a telephone number 202 included in the transfer request, which is connected to the home server 101 via the public network 103 and dynamically
Assign an address. As a result, the home server 101
Is dialed up to the Internet 107.
After the connection is completed, the access point 104 transfers the transfer request to the home server 101. Home server 101
Is based on the file name 204 included in the transfer request,
The stored AV stream data is specified, and the attribute information 2
05, the editing and compression processing is performed on the AV stream data at the specified frame rate.

Next, the home server 101 connects to the cache server 108 provided by the connection service provider 106 connected to the Internet 107. After the connection is completed, the edited and compressed AV stream data is transferred to the cache server 108. After the transfer is completed, the home server 101 ends the connection with the access point 104.

Next, the terminal 102 is connected to the terminal 102 through the public line network using the telephone number 203 of the terminal 102 included in the transfer request, and is notified that the transfer processing of the AV stream data is completed, and the connection is terminated. The terminal 102 notified of the completion of the transfer process emits a predetermined sound to notify the user that the transfer process has been completed. The user connects the terminal 102 again to the access point 105 provided by the neighboring connection service provider 106 through the public line network 103, and requests a dial-up connection to the Internet 107. The requested access point 105 dynamically assigns an IP address to the terminal 102 and connects the terminal 102 to the Internet 107. After the connection is completed, the user inputs the IP address of the cache server 108 provided by the connection service provider 106 connected to the Internet 107.
The terminal 102 is connected by designating an address, and the reproduction and display processing is performed in real time while acquiring the AV data stream stored in the cache server 108.

As described above, according to the present embodiment, the user obtains the AV stream data edited and compressed with the specified attribute from the caching server on the Internet by dialing up the terminal to the nearby access point. Since the communication cost can be reduced, the communication cost can be reduced to the communication fee for acquiring the data compressed to the predetermined data size. In addition, since the communication charge for the acquisition is the charge for the communication with the neighboring access point, the communication cost can be kept low even if the home server and the terminal are at a long distance.

(Embodiment 2) FIG. 3 shows the configuration of a data transfer system according to Embodiment 2 of the present invention. In the figure, reference numeral 101 denotes a server installed in a home, which has a communication function for connecting to a public line network. Server is A
It stores data such as V stream data and has a data editing function. Reference numeral 102 denotes a terminal that can be connected to a public network by a mobile phone or the like,
It has a function of reproducing and displaying data such as AV stream data. Reference numeral 103 denotes a public line network, reference numeral 106 denotes a connection service provider that mediates connection between the public line network and the Internet, reference numeral 104 denotes an access point near the area of the home server 101 provided by the connection service provider 106, and reference numeral 105 denotes a connection service provider. An access point near an area where the terminal 102 is provided by the terminal 106, 107
Is the Internet. Reference numeral 108 denotes a cache server for temporarily storing information prepared by the connection service provider, and reference numeral 109 denotes a telephone number conversion table. The difference from the first embodiment shown in FIG. 1 is that the cache server 108 has a telephone number conversion table 109.

It is assumed that the area between the area of the user who uses the terminal 102 and the area where the home server is installed is a long distance to which international telephone or telecommunication billing is applied in a public network. The terminal 102 connects to a nearby access point 105 through the public network 103 according to an input from the user, and requests a dial-up connection to the Internet 107. The access point 105 provided by the connection service provider 106 is a terminal 10 connected by a public line network.
2 is dynamically assigned an IP address, and the terminal 102 is connected to the Internet 107. After connection, the user
As an input to 2, a connection is made by designating the IP address of the cache server 108 connected to the Internet 107 provided by the connection service provider 106, and transmitting a transfer processing request.

FIG. 4A shows the contents of the transfer processing request. 4A, reference numeral 301 denotes a command indicating a data transfer processing request, 302 denotes an ID indicating the home server 101 to be used, and 303 denotes an I indicating the terminal 102.
D, and 304 is the file name of the AV stream data to be acquired. Attribute information 305 designates a frame rate and instructs editing of the AV stream data.

FIG. 4B shows a telephone number conversion table 10.
9 is shown. In FIG. 4B, reference numeral 306 denotes an ID for identifying the home server 101, and reference numeral 307 denotes the terminal 10
2 is an ID for specifying the home server 101.
309 is the telephone number of the terminal 102, and the ID and the telephone number correspond one-to-one.

After the transmission of the transfer request is completed, the user
The connection between the terminal and the access point 105 is temporarily terminated. The cache server 108 that has received the transfer request specifies the telephone number 308 based on the ID 306 that matches the ID 302 of the home server 101 included in the transfer request. In addition, the telephone number 309 is specified based on the ID 307 that matches the ID 303 of the terminal 102 included in the transfer request.
Next, the access point 104 which controls the telephone number 308 of the home server 101 is specified, and the ID 303 of the terminal 102 included in the transfer request is replaced with the telephone number 309 'of the terminal 102 as shown in FIG. To the access point 104.

The access point 10 that has received the transfer request
4 connects to the home server 101 via the public line network 103 using the telephone number 308 included in the transfer request, dynamically allocates an IP address, and dial-up connects the home server 101 to the Internet 107. After the connection is completed, the access point 104 transfers the transfer request to the home server 101. The home server 101 specifies the accumulated AV stream data from the file name 304 included in the transfer request, and performs edit compression processing on the AV stream data based on the specified frame rate according to the attribute information 305.

Next, the home server 101 connects to the cache server 108 provided by the connection service provider 106 connected to the Internet 107. After the connection is completed, the edited and compressed AV stream data is transferred to the cache server 108. After the transfer is completed, the home server 101 ends the connection with the access point 104.

Next, the home server 101 connects to the terminal 102 via the public network using the telephone number 309 'of the terminal 102 included in the transfer request, and notifies that the transfer processing of the AV stream data has been completed. , Terminate the connection. The terminal 102, which has been notified of the completion of the transfer process, emits a sound to inform the user of the completion of the transfer process. User is terminal 1
02 is again provided by the access service provider 106 in the vicinity through the public network 103.
, And requests a dial-up connection to the Internet 107. The requested access point 105 dynamically assigns an IP address to the terminal 102 and connects the terminal 102 to the Internet 107. After the connection is completed, the user connects the terminal 102 by specifying the IP address of the cache server 108 provided by the connection service provider 106 connected to the Internet 107, and obtains the AV data stream stored in the cache server 108. While performing the reproduction display processing in real time.

As described above, according to the present embodiment, the user obtains the AV stream data edited and compressed with the designated attribute from the cache server on the Internet by dialing up the terminal to the nearby access point. Since the communication cost can be reduced, the communication cost can be reduced to the communication fee for acquiring the data compressed to the predetermined data size. In addition, since the communication charge for the acquisition is the charge for the communication with the neighboring access point, the communication cost can be kept low even if the home server and the terminal are at a long distance.

(Embodiment 3) FIG. 5 shows Embodiment 3 of the present invention.
1 shows a configuration of a data transfer system according to the first embodiment. In FIG. 5, reference numeral 101 denotes a server installed in the home, which has a communication function of connecting to a public line network. The server 101 stores data such as AV stream data and has a data editing function. Reference numeral 102 denotes a terminal which can be connected to a public network by a mobile phone or the like, and has a function of communication over a network and a function of displaying and displaying data such as AV stream data. Reference numeral 103 denotes a public line network, reference numeral 106 denotes a connection service provider that mediates connection between the public line network and the Internet, reference numeral 104 denotes an access point near the area of the home server 101 provided by the connection service provider 106, and reference numeral 105 denotes a connection service provider. 106
Access point near the area where the terminal provided by
Reference numeral 07 denotes the Internet, reference numeral 401 denotes transfer mediation means for mediating data transfer between the terminal and the home server,
Reference numeral 2 denotes an address management unit that manages an IP address that is dynamically assigned to a terminal, a server, or the like that has been dialed up by the connection service provider 106.

It is assumed that the area between the area of the user who uses the terminal 102 and the area where the home server is installed is a long distance to which international telephone or telecommunication billing is applied in a public network. The terminal 102 connects to a nearby access point 105 through the public network 103 according to a user input and requests a dial-up connection to the Internet 107. The access point 105 provided by the connection service provider 106 is a terminal 102 connected to a public line network.
, The terminal 102 is connected to the Internet 107.

After the dial-up connection, the user connects to the transfer mediation means 401 provided by the connection service provider 106 and transmits a transfer processing request. The content of the transfer processing request is the same as the transfer processing request of the first embodiment shown in FIG. The transfer mediation unit 401 registers the IP address of the terminal 102 in the address management unit 402. Upon receiving the transfer request, the transfer mediation unit 401 sets the telephone number 2 included in the transfer request.
02, and specifies the access point 104 that has jurisdiction over the transfer request. Access point 1 that received the transfer request
Reference numeral 04 denotes a telephone number 202 included in the transfer request, which is connected to the home server 101 via the public network 103 and dynamically
The home server 101 is dialed up to the Internet 107 by assigning a P address.

Next, the access point 104 transfers the transfer request to the home server 101. The home server 101 stores the A stored based on the file name 204 included in the transfer request.
The V stream data is specified, and the AV stream data is edited and compressed according to the specified frame rate according to the attribute information 205.

Next, the home server 101 transfers the transfer
01 connected to the terminal 102 and registered in the address management means.
And connects to the terminal 102. After the connection is completed, the edited and compressed AV stream data is transferred to the terminal 102, and the terminal 102 performs reproduction and display processing in real time while acquiring the transferred AV stream data.

The configuration shown in FIG. 5 may be used as follows. That is, the terminal 102 receives the input from the user and connects to the nearby access point 10 through the public network 103.
5 and a dial-up connection to the Internet 107 is requested. An access point 105 provided by a connection service provider 106 dynamically assigns an IP address to a terminal 102 connected to a public line network and connects the terminal 102 to the Internet 107. After the dial-up connection, the user connects to the transfer mediation unit 401 provided by the connection service provider 106, notifies the telephone number of the home server 101, and requests connection processing. Upon receiving the connection processing request, the transfer mediation unit 401 specifies the access point 104 that controls the telephone number of the home server 101 included in the transfer request, and requests connection processing. The access point 104 that has received the connection processing request connects to the home server 101 of the requested telephone number via the public network 103 and dynamically assigns an IP address to the home server 101.
Is dialed up to the Internet 107. The access point 104 notifies the assigned IP address to the transfer mediation unit 401, and the transfer mediation unit 401 registers the IP address in the address management unit 402. After the dial-up connection is completed, the terminal 102 connects to the transfer mediation unit 401, acquires the IP address of the home server 101 registered in the address management unit, and connects to the home server 101. After the connection is completed, the terminal 102 transmits a transfer processing request for the AV stream data to the home server 101.

FIG. 6 shows the contents of the transfer processing request. FIG.
Is a command indicating a data transfer processing request, and 502 is a file name of AV stream data to be acquired. Reference numeral 503 denotes attribute information, which instructs editing of AV stream data by specifying a frame rate. The home server 101 specifies the stored AV stream data based on the file name 502 included in the transfer request, and performs edit compression processing on the AV stream data based on the specified frame rate according to the attribute information 503. After the editing compression processing is completed, the home server 1
01 is the terminal 1 that stores the edited and compressed AV stream data.
02, and the terminal 102 performs a reproduction and display process in real time while acquiring the transferred AV stream data. As described above, according to the present embodiment, by providing the terminal and the home server with a means for notifying the dynamically allocated IP address, even if each of them is a dial-up connection, data can be directly transmitted by the IP connection. Transfer becomes possible. Also, the terminal acquires and reproduces the AV stream data stored in the distant home server only by charging for communication with the access point near the terminal and charging for communication with the access point near the home server. can do.

(Embodiment 4) FIG. 7 shows a configuration of a data transfer system according to Embodiment 4 of the present invention. In FIG. 7, reference numeral 101 denotes a server installed in a home, which has a communication function of connecting to a public network. Server is A
It stores data such as V stream data and has a data editing function. Reference numeral 102 denotes a terminal that can be connected to a public network by a mobile phone or the like,
It has a function of reproducing and displaying data such as AV stream data. Reference numeral 103 denotes a public line network, reference numeral 106 denotes a connection service provider that mediates connection between the public line network and the Internet, reference numeral 104 denotes an access point near the area of the home server 101 provided by the connection service provider 106, and reference numeral 105 denotes a connection service provider. An access point near the area where the terminal provided by 106 is located, and 107 is the Internet. Reference numeral 401 denotes a transfer mediation unit that mediates data transfer between the terminal and the home server. Reference numeral 402 denotes an address management unit that manages an IP address dynamically allocated to the terminal and the server that have been dialed up by the connection service provider 106. Is a telephone number conversion table. The difference from the third embodiment shown in FIG.
The transfer mediating means 401 has a telephone number conversion table 601.

The terminal 102 receives an input from a user and sends it to the nearby access point 10 through the public network 103.
5 and request a dial-up connection to the Internet 107. An access point 105 provided by the connection service provider 106 dynamically assigns an IP address to the terminal 102 connected to the public network 103 and connects the terminal 102 to the Internet 107. After the dial-up connection, the user connects to the transfer mediation unit 401 provided by the connection service provider 106 and transmits a transfer processing request. The content of the transfer processing request to be transmitted is the same as the transfer processing request of the embodiment shown in FIG. The transfer mediation unit 401 registers the IP address of the terminal 102 in the address management unit 402. Upon receiving the transfer request, the transfer mediation unit 401 determines from the telephone number conversion table 601 that the I that matches the ID 302 of the home server 101 included in the transfer request.
The telephone number 308 is specified from D306.

Next, the access point 104 that controls the telephone number 308 is specified, and a transfer request is sent to the access point 1.
04. The access point 104 that has received the transfer request connects to the home server 101 via the public network 103 using the telephone number 308 included in the transfer request, and dynamically assigns an IP address to the home server 1.
01 is dialed up to the Internet 107.

Next, the access point 104 transfers the transfer request to the home server 101. The home server 101 stores the A stored from the file name 204 included in the transfer request.
The V stream data is specified, and the AV stream data is edited and compressed according to the specified frame rate according to the attribute information 205.

Next, the home server 101 transfers the transfer
01, and obtains the IP address of the terminal 102 registered in the address management means 402 and connects. After the connection is completed, the edited and compressed AV stream data is transferred to the terminal 1
02, and the terminal 102 performs a reproduction and display process in real time while acquiring the transferred AV stream data.

The configuration shown in FIG. 7 may be used as follows. That is, the terminal 102 receives an input from the user and connects to the nearby access point 1 through the public network 103.
05 and a dial-up connection to the Internet 107 is requested. An access point 105 provided by the connection service provider 106 dynamically assigns an IP address to the terminal 102 connected to the public network 103 and connects the terminal 102 to the Internet 107. After the dial-up connection, the user connects to the transfer mediation unit 401 provided by the connection service provider 106, and the home server 1
No. 01 is notified and connection processing is requested. Upon receiving the connection processing request, the transfer mediation unit 401 specifies the telephone number 308 from the ID 306 that matches the ID of the home server 101 included in the transfer request from the telephone number conversion table 601.

Next, the access point 104 that controls the telephone number 308 is specified, and a connection process is requested. The access point 104 that has received the connection processing request connects to the home server 101 of the requested telephone number via the public network 103 and dynamically allocates an IP address to dial up the home server 101 to the Internet 107. The access point 104 assigns the I
The transfer mediation unit 401 is notified of the P address, and the transfer mediation unit 401 registers the P address in the address management unit 402. After dial-up connection is completed, the terminal 102
Home server 1 connected to the Internet and registered in the address management means
01, and connects to the home server 101.

After the connection is completed, the terminal 102 transmits a request to transfer AV stream data to the home server 101. The content of the transfer processing request is the same as the transfer processing request of the third embodiment shown in FIG. The home server 101 specifies the accumulated AV stream data from the file name 502 included in the transfer request, and performs editing and compression processing on the AV stream data based on the specified frame rate according to the attribute information 503. After the completion of the edit compression processing, the home server 101 transfers the AV stream data subjected to the edit compression processing to the terminal 102, and the terminal 102 transmits the transferred AV stream data.
Playback display processing is performed in real time while acquiring stream data.

As described above, according to the present embodiment, the terminal and the home server provide a means for obtaining a dynamically assigned IP address, so that even if each terminal has a dial-up connection, data can be directly transmitted by the IP connection. Transfer becomes possible. Also, the AV stream data stored in the long distance home server is acquired and reproduced only by charging for communication with the access point near the terminal and charging for communication with the access point near the home server. be able to.

(Embodiment 5) FIG. 8 shows the configuration of a data transfer system according to Embodiment 5 of the present invention. In FIG. 8, reference numeral 101 denotes a server installed in a home, which has a communication function connected to a public line network. Server is A
It stores data such as V stream data and has a data editing function. Reference numeral 102 denotes a terminal that can be connected to a public network by a mobile phone or the like,
It has a function of reproducing and displaying data such as AV stream data. 103 is the public network, 106 is the public network 10
Reference numeral 104 denotes a connection service provider that mediates connection to the Internet.
6, an access point near the area of the home server 101 provided by 6; an access point 105 near the area where the terminal 102 is provided by the connection service provider 106;
Reference numeral 107 denotes the Internet, and reference numeral 108 denotes a cache server for temporarily storing information prepared by the connection service provider 106.

It is assumed that the area between the area of the user using the terminal 102 and the area where the home server 101 is installed is a long distance to which international telephone or telecommunication billing is applied in the public network 103. The terminal 102 is connected to the home server 101 through the public line network 103 by an input from the user.
And sends a transfer processing request.

FIG. 9 shows the contents of the transfer processing request to be transmitted. In FIG. 9, reference numeral 701 denotes a command indicating a data transfer processing request, and reference numeral 702 denotes a command of the cache server 108.
A P address, 703 is a telephone number of the terminal 102, and 704 is a file name of the AV stream data to be acquired. Reference numeral 705 denotes attribute information, which instructs editing of AV stream data by specifying a frame rate. After the completion of the transfer request transmission, the user
The connection between the home server 101 and the home server 101 is temporarily terminated. The home server 101 specifies the accumulated AV stream data from the file name 704 included in the transfer request, and sets A based on the specified frame rate according to the attribute information 705.
An edit compression process is performed on the V stream data.

Next, the home server 101 connects to a nearby access point 104 through the public network 103 and requests dial-up connection. Access point 104
Receives the request, dynamically allocates an IP address to the home server 101, and completes the dial-up connection to the Internet 107. After completing the dial-up connection, the home server 101 connects to the cache server 108 with the IP address 702 included in the transfer request. After the connection is completed, the edited and compressed AV stream data is transferred to the cache server 108. After the transfer is completed, home server 1
01 ends the connection with the access point 104.

Next, the terminal 102 is connected to the terminal 102 through the public line network by using the telephone number 703 of the terminal 102 included in the transfer request.
It notifies that the transfer processing of the AV stream data has been completed, and terminates the connection. Terminal 1 notified of completion of transfer processing
02 generates a sound and notifies the user of the completion of the transfer process. The user connects the terminal 102 again to the access point 105 provided by a nearby connection service provider 106 through the public line network 103, and requests a dial-up connection to the Internet 107. The requested access point 105 dynamically assigns an IP address to the terminal 102 and connects the terminal 102 to the Internet 107. After the connection is completed, the user connects the terminal 102 to the Internet 107.
Is connected to the cache server 108 provided by the connection service provider 106 connected to
Playback display processing is performed in real time while acquiring the V data stream.

As described above, according to the present embodiment, a user obtains AV stream data edited and compressed with a specified attribute from a cache server on the Internet by dialing up a terminal to a nearby access point. Therefore, the communication fee for obtaining data compressed to a predetermined data size is sufficient. In addition, since the communication charge for the acquisition is the charge for the communication with the neighboring access point, the communication cost can be kept low even if the home server and the terminal are at a long distance. Further, since there is no need to provide a means for connecting the home server to the home server from the access point side of the connection service provider via a public line, the connection service provider does not need to install new equipment.

(Embodiment 6) FIG. 10 shows a configuration of a data transfer system according to Embodiment 6 of the present invention. In FIG. 10, reference numeral 101 denotes a server installed in a home, which has a communication function of connecting to a public line network. The server stores data such as AV stream data and has a data editing function. 102 is a public network 2
It is a terminal device that can be connected via a line, and has functions of communication over a network and reproducing and displaying data such as AV stream data. 801 a and 801 b are two lines used by the terminal 102. 103 is a public network, 106 is a connection service provider that mediates connection between the public network and the Internet, and 104 is a connection service provider 1
Reference numeral 06 denotes an access point near the area of the home server 101 provided by the home server 101, reference numeral 105 denotes an access point near the area where a terminal provided by the connection service provider 106 exists, and reference numeral 107 denotes the Internet. An address management unit 802 manages an IP address dynamically assigned by the access point 104.

It is assumed that the area between the area of the user using the terminal 102 and the area where the home server 101 is installed is a long distance to which international telephone or telecommunications billing is applied in a public network. The terminal 102 connects to a nearby access point 105 through the public line network 103 using the line
Request a dial-up connection to An access point 105 provided by the connection service provider 106 dynamically assigns an IP address to the terminal 102 connected to the public network 103 and connects the terminal 102 to the Internet 107. The assigned IP address is registered in the address management unit 802. The terminal 102 receives a signal from the access management unit 802 via the access point 105 to the terminal 102
Obtain the IP address of

Next, the user connects the terminal 102 to the home server 101 via the public line network 103 via the line 801b, and transmits a transfer processing request. FIG. 11 shows the contents of the transfer processing request. In FIG. 11, reference numeral 803 denotes a command indicating a data transfer processing request, and 804 denotes the acquired terminal 1
02 is the IP address, and 805 is the file name of the AV stream data to be obtained. Reference numeral 806 denotes attribute information, which instructs editing of AV stream data by specifying a frame rate. After the transmission of the transfer request is completed, the user temporarily ends the connection between the terminal 102 and the home server 101 via the line 801b. Home server 10
Numeral 1 specifies the accumulated AV stream data from the file name 805 included in the transfer request, and performs edit compression processing on the AV stream data according to the attribute information 806.

Next, the home server 101 connects to a nearby access point 104 via the public network 103 and requests dial-up connection. Access point 104
Receives a request, dynamically allocates an IP address to the home server 101, and connects the home server 101 to the Internet 1
Dial-up connection to 07. After completing the dial-up connection, the home server 101 connects to the terminal 102 using the IP address 804 included in the transfer request. After the connection is completed, the home server 101 transfers the edited and compressed AV stream data, and the terminal 102 performs the real-time reproduction and display processing while receiving the transferred AV stream data.

As described above, according to the present embodiment, by providing a means for notifying a terminal of a dynamically assigned IP address, data can be transferred by direct IP connection even if each other is a dial-up connection. become. Also,
A charge stored in a long-distance home server is only a charge for communication with the access point near the terminal and a charge for communication with the access point near the home server.
V stream data can be obtained and reproduced.

(Embodiment 7) FIG. 12 shows the configuration of a data transfer system according to Embodiment 7 of the present invention. In FIG. 12, reference numeral 101 denotes a server installed in a home, which can perform communication by connecting to a public line network through two lines. The server stores data such as AV stream data and has a data editing function. Reference numeral 102 denotes a terminal device that can be connected to a public line network, and has a function of communicating over a network and reproducing and displaying data such as AV stream data. 901a and 901b are home servers 1
01 is the two lines used. 103 is a public network, 1
Reference numeral 06 denotes a connection service provider that mediates connection to the public line network and the Internet, reference numeral 104 denotes an access point near the area of the home server 101 provided by the connection service provider 106, and reference numeral 105 denotes a terminal 102 provided by the connection service provider 106. It is an access point near a certain area. 107 is the Internet,
Reference numeral 802 denotes an I dynamically assigned by the access point 104.
Address management means for managing the P address.

It is assumed that there is a long distance between the area of the user who uses the terminal 102 and the area where the home server 101 is installed in the public telephone network 103 to which international telephone or long-distance communication billing is applied. The user connects the terminal 102 to the home server 101 via the public network 103 via the line 901b, and transmits a connection processing request.

Next, the home server 101 connects to the nearby access point 104 by using the line 901 a to the public line network 10.
3 and request a dial-up connection. The access point 104 receives the request and the home server 10
1 is dynamically assigned an IP address, and the home server 10
1 is dialed up to the Internet 107.
The assigned IP address is registered in the address management unit 902. The home server 101 is the access point 10
4 from the access control means 902 to the home server 1
01 is acquired.

Next, the acquired IP address of the home server 101 is transmitted to the terminal 102, and after the transmission is completed, the terminal 102
The connection with the home server 101 via the line 901b is terminated. The terminal 102 is connected to a nearby access point 105 through the public line network 103 in accordance with the input from the user.
To request a dial-up connection to the Internet 107. The access point 105 provided by the connection service provider 106 dynamically assigns an IP address to the terminal 102 connected to the public line network 103,
02 is connected to the Internet 107. After completing the dial-up connection, the terminal 102 connects to the home server 101 using the IP address obtained via the line 901a.

Next, a request to transfer AV stream data is sent to the home server 101. The content of the transfer processing request is the same as the transfer processing request of the third embodiment shown in FIG. Home server 101 that has received the transfer processing request
Specifies the accumulated AV stream data from the file name 502 included in the transfer request, and performs edit compression processing on the AV stream data according to the attribute information 503. After the completion of the editing compression processing, the AV stream data subjected to the editing compression processing is transferred to the terminal 102, and the terminal 102
Performs real-time reproduction display processing while receiving the transferred AV stream data.

As described above, according to the present embodiment, by providing means for notifying the terminal of the dynamically assigned IP address to the terminals, data transfer by direct IP connection is possible even if each other is a dial-up connection. become. Also,
A charge stored in a long-distance home server is only a charge for communication with the access point near the terminal and a charge for communication with the access point near the home server.
V stream data can be obtained and reproduced.

In the first embodiment and the like, the terminal 102 notified of the end of the transfer processing of the AV stream data via the public line network 103 notifies the user of the end of the transfer processing using voice. The end of the transfer process may be notified using a typical vibration or screen display.

Further, the cache server 108 does not necessarily need to be provided by the same connection service provider 106, and may be a server provided by another service connected to the Internet 107.

The access points 104 and 105 in the connection service provider 106 and the cache server 108 are not limited to being connected via the Internet 107, but may be connected via a dedicated line, for example. The data to be transferred is not limited to AV stream data, and the present invention can be applied to various data transfers between a server and a terminal.

The information storage means connected to the access point through the public line is not limited to a home server, but may be a server connected to a home LAN. This embodiment will be described next.

(Eighth Embodiment) FIG. 13 shows a configuration of a data transfer system according to an eighth embodiment of the present invention. FIG.
In FIG. 3, reference numeral 1001 denotes a home server installed in the home, which is connected to the home LAN 1003. 10
Reference numeral 02 denotes a gateway connected to a public line network for communication, and a home server 1001 connected to a home LAN.
Assigns a local IP address to the device containing
It has an address conversion function such as an IP masquerade that performs an address conversion with an IP address on the Internet. The other configuration is the same as that of FIG.

In this case, the access point 104 that has received the transfer request connects to the gateway 1002 through the public network 103 using the telephone number 202 included in the transfer request, and dynamically assigns an IP address to the gateway 1002.
2 is dialed up to the Internet 107.
After the connection is completed, the access point 104 transfers the transfer request to the gateway 1002. The transferred gateway 1002 is sent to the home server 10 on the home LAN 1003.
01, and connects to the home server 1001 using the local IP address assigned to the home server 1001 to transfer the transfer request. The home server 1002 stores the A stored from the file name 204 included in the transfer request.
The V stream data is specified, and edit compression processing is performed on the AV stream data based on the specified frame rate according to the attribute information 205.

Next, the home server 1001 transfers the edited and compressed AV stream data to the cache server 108 via the gateway 1002. Also in the configuration of this embodiment, the user can obtain AV stream data edited and compressed with a specified attribute from a caching server on the Internet by dialing up the terminal to a nearby access point, so that communication costs are reduced. Requires only a communication charge for acquiring data compressed to a predetermined data size. In addition, since the communication charge for the acquisition is the charge for the communication with the neighboring access point, the communication cost can be kept low even if the home server and the terminal are at a long distance.

[0086]

As described above, according to the present invention, a remote terminal and a home server are connected via a public network, and information stored in the home server is obtained from the terminal at low communication cost. be able to.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a data transfer system according to a first embodiment of the present invention.

FIG. 2 is a table showing contents of a transfer processing request in the data transfer system of FIG. 1;

FIG. 3 is a diagram showing a configuration of a data transfer system according to a second embodiment of the present invention.

4A is a table showing contents of a transfer processing request in the data transfer system of FIG. 2; FIG. 4B is a table showing contents of a telephone number conversion table in the data transfer system of FIG. 2; Showing processing to partially replace the contents of the transfer processing request in

FIG. 5 is a diagram showing a configuration of a data transfer system according to a third embodiment of the present invention.

FIG. 6 is a table showing contents of a transfer processing request in the data transfer system of FIG. 5;

FIG. 7 is a diagram showing a configuration of a data transfer system according to a fourth embodiment of the present invention.

FIG. 8 is a diagram showing a configuration of a data transfer system according to a fifth embodiment of the present invention.

FIG. 9 is a table showing contents of a transfer processing request in the data transfer system of FIG. 8;

FIG. 10 is a diagram showing a configuration of a data transfer system according to a sixth embodiment of the present invention.

11 is a table showing contents of a transfer processing request in the data transfer system of FIG.

FIG. 12 is a diagram showing a configuration of a data transfer system according to a seventh embodiment of the present invention.

FIG. 13 is a diagram showing a configuration of a data transfer system according to an eighth embodiment of the present invention.

FIG. 14 is a diagram showing a configuration of a conventional data transfer system.

FIG. 15 is a diagram showing another configuration of a conventional data transfer system.

FIG. 16 is a diagram showing still another configuration of the conventional data transfer system.

FIG. 17 is a diagram showing still another configuration of the conventional data transfer system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Home server 102 Terminal 103 Public line network 104 Access point 105 Access point 106 Connection service provider 107 Internet 108 Cache server

Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI H04M 3/42 (72) Inventor Hideaki Takechi 1006 Odakadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Daisuke Kobayashi Kadoma, Osaka 1006 Kadoma, Matsushita Electric Industrial Co., Ltd.

Claims (12)

[Claims] An information storage means for connecting to a network via a public line network, a terminal device for connecting to the network via a public line network, a connection mediating means for mediating connection to a network via the public line network, and Temporary storage means for temporarily storing flowing information, wherein the terminal device is connected to the network through the public network by the connection mediation means, and a telephone number of the information storage means is provided to the connection mediation means. Requesting data transfer, the connection mediation means performs network connection with the information storage means corresponding to the telephone number through the public network, and the information storage means responds to the data transfer request. Information is transferred to the connection mediation means, the transferred data is stored in the temporary storage means, and the terminal device Data transfer system to the remote terminal, characterized in that to obtain the information accumulated from the time of the storage means. 2. The data transfer to a remote terminal according to claim 1, wherein the information storage unit notifies the terminal device of the end of the transfer via a public network after ending the information transfer process for the connection mediation unit. system. 3. The terminal device requests the data transfer by adding a use ID to the connection mediation means, and the connection mediation means specifies a telephone number of the information storage means from the use ID. The system for transferring data to a remote terminal according to claim 1, wherein 4. The data transfer to a remote terminal according to claim 3, wherein the information storage means notifies the terminal device of the transfer end via a public network after the information transfer processing to the connection mediation means is completed. system. 5. An information storage means for connecting to a network via a public line network, a terminal device for connecting to the network via a public line network, and a connection mediating means for connecting to the network via a public line network, the terminal device comprising: A network address is dynamically assigned by the connection mediation means, and a connection is made to the network through a public line network, and a telephone number of the information storage means is added to the connection mediation means to request a connection mediation to the information storage means. The connection mediation unit performs a network connection to the information storage unit corresponding to the telephone number through a public network, notifies the information storage unit of the network address of the terminal device, and the information storage unit receives the notification. Connected to the terminal device by the network address and the information to the terminal device A data transfer system to a remote terminal. 6. The terminal device requests the data transfer by adding a use ID to the connection mediation means, and the connection mediation means specifies a telephone number of the information storage means from the use ID. A data transfer system to a remote terminal described in the above. 7. An information storage means for connecting to a network via a public line network, a terminal device for connecting to the network via a public line network, and a connection mediating means for connecting to the network via a public line network, the terminal device comprising: The connection mediation means connects to a network through a public line network, requests the connection mediation means to add a telephone number of the information storage means, and requests a connection mediation to the information storage means, The network address of the information storage means corresponding to the telephone number is dynamically allocated, a network connection is made through a public network, and the network address of the information storage means is notified to the terminal device. Connects to the information storage means by an address and retrieves information from the information storage means. A data transfer system to a remote terminal. 8. The terminal device requests the data transfer by adding a use ID to the connection mediation means, and the connection mediation means specifies the telephone number of the information storage means from the use ID. The system for transferring data to a remote terminal according to claim 7, wherein: 9. An information storage means for connecting to a network via a public line network, a terminal device for connecting to the network via a public line network, a connection mediating means for mediating connection to the network via a public line network, Temporary storage means for temporarily storing information, wherein the information storage means connects to a network via a public network via the connection mediating means when data transfer is requested from the terminal device via a public network. Transferring the information to the temporary storage means, wherein the terminal device is connected to a network via a public line network, and acquires the information stored in the temporary storage means. . 10. The data transfer to a remote terminal according to claim 9, wherein said information storage means notifies the terminal device of the transfer end via a public network after the information transfer processing to said connection mediation means is completed. system. 11. An information storage means for connecting to a network through a public line network, a terminal device having means for connecting to two or more public lines and connecting to the network through a public line network, and a terminal device for connecting to the network through a public line network The terminal device is dynamically assigned a network address by the connection mediating means, connects to a network through a public network, and acquires the assigned network address from the connection mediating means, Using a public line different from the public line used for connection to the network, the assigned network address is notified to the information storage unit, and the information storage unit is connected to the network through a public line network by the connection mediation unit. To the network device of the terminal device notified Data transfer system to the remote terminal, characterized in that connected via a network, and transfers the accumulated information to the terminal device to the terminal device by using the scan. 12. An information storage means having means for connecting to two or more public lines, connecting to a network through a public line network, a terminal device connecting to the network through a public line network, and connecting to a network through a public line network. When the terminal device requests data transfer through a public line network, the information storage unit is dynamically assigned a network address by the connection intermediate unit and connects to a network through a public line network. Obtaining the assigned network address by the connection mediation means, and notifying the assigned network address to the terminal device using a public line different from the public line used for connection to the network, The terminal device is connected to the network via the public line network by the connection mediation means. Connect to over click, using said notified network address to connect to the information storage means, the data transfer system to the remote terminal and acquires the information stored in said information storing means.