JP4263455B2 - Information sharing system and method via network - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a system for sharing information simultaneously on a communication network such as the Internet or a LAN.
In particular, the present invention relates to an information sharing network system and method including a server that enables information sharing between terminals on a communication network.
The present invention also relates to an information terminal device that performs data sharing on a communication network.
[0002]
[Prior art]
As a conventional technique for connection format and data sharing among three or more terminals, there is a technique in which a certain terminal is connected to all other terminals and directly transmits data to share data (hereinafter, referred to as the following). (Referred to as “mesh type”) (for example, see Non-Patent Document 1). As an example of the procedure for sharing data, as shown in FIG. 1, first, as shown by arrows, connections are established between terminals 2a to 2d as shown in C100 to C105, and then data is transmitted to the connection partner as shown in D100 to D105. Send. All connections between terminals and data transmission / reception between terminals are performed between all terminals. The terminals 2a to 2d output data to the respective users 4a to 4d.
[0003]
As shown in Fig. 2, the structure of the mesh type terminal is the user input device 7 that processes the data input by the user 4 so that it can be transmitted over the network, and the data input by the user 4 to all other terminals. Data transmission device 10 for transmitting data, data reception device 9 for receiving data sent from other terminals, and user output device 7 for processing the received data into a state in which it can be output. Each terminal does not transfer data received from other terminals.
[0004]
However, the mesh type has a problem that the connection method between terminals becomes complicated as the number of connected terminals increases.
[0005]
As a conventional technique that solves this problem, a server that does not directly input / output data to the user is provided, and each terminal establishes a connection only with the server, and transmits / receives data between the terminal and the server. (Hereinafter referred to as “server type”) (for example, see Non-Patent Document 2). As an example of a procedure for sharing data, as shown in FIG. 3, first, a connection is established between the terminals 2a to 2d and the server 1 as shown in C200 to C203, and then the terminals 2a to 2d are connected as shown in D200 to D203. Each terminal sends data to the server 1, and the server 1 transfers the data to all terminals other than the transmission source so that each terminal shares the data.
[0006]
As shown in FIG. 4, the server has a data receiving device 9 that receives data sent from other terminals, and sets a transmission destination for each data so that the data is transferred to a terminal other than the transmission source. The transmission destination setting device 11 includes a data transmission device 10 that transfers data to a transmission destination instructed by the transmission destination setting device 11. Also, as shown in 2 of FIG. 4, the structure of the terminal is a data receiving device 9 that receives data received from the server, a user output device 7 that processes the received data into a state in which it can be output, and data input by the user. It consists of a user input device 8 that processes data in a transmittable state on the network and a data transmission device 10 that transmits data input by the user 4 to the server.
[0007]
However, the server type has a restriction that the hardware including the server must be high-performance because data is concentrated on the server, and once it is installed, it is very difficult to replace it. After that, there is a problem that the data sharing ability of the entire terminal is practically limited by the server ability. In particular, even when the terminals are divided into a plurality of groups and the terminals share data, the data transfer load is concentrated on one server.
[0008]
As a conventional technology that reduces the load on the server, a server that instructs only the connection partner without transferring data is provided, and two terminals establish a direct connection to each other under the server's instructions to send and receive data. Is a technique that is performed between terminals without using a server (hereinafter referred to as “peer-to-peer type”) (see, for example, Non-Patent Document 3). As an example of the procedure for sharing data, as shown in FIG. 5, first, the terminals 2a to 2d first contact their server 1 with their IP addresses and port numbers (hereinafter referred to as "terminal information"), and then The terminal inquires of the server about the terminal information of the connection partner that the terminal wishes to connect to, the server 1 returns the terminal information of the connection partner to the terminal, and the terminal uses the terminal information to connect to the terminal as the connection partner and the C300. Then, after establishing the connection as in C301, the data is shared between the terminals by directly transmitting and receiving data between the terminals as in D300 and D301.
[0009]
As shown in FIG. 6, the structure of the server includes a terminal information storage device 12 for storing terminal information sent from the terminal, and a terminal information communication device 13 for returning terminal information of a connection partner inquired from the terminal. Further, as shown in FIG. 6, the structure of the terminal is as follows. The destination setting device 11 receives the terminal information of the connection partner from the server and indicates the data transmission destination, the data reception device 9 receives the data from the terminal of the connection partner, User output device 7 that processes received data in a state that can be output, user input device 8 that processes data input by user 4 so that it can be transmitted over the network, and user 4 inputs to the terminal of the other party The data transmission device 10 transmits data.
[0010]
However, the peer-to-peer type can only share data between two terminals.
[0011]
[Non-Patent Document 1]
Intel web site, Glossary of terms related to e-Business, [Search October 11, 2002], Internet <URL http://www.intel.co.jp/jp/commentary/e-term/atoz- 14.htm>
[Non-Patent Document 2]
Takeshi Sakata, “All about P2P Innovation”, Nihon Jitsugyo Publishing Co., Ltd., published January 20, 2002, p. 118
[Non-Patent Document 3]
Takeshi Sakata, “All about P2P Innovation”, Nihon Jitsugyo Publishing Co., Ltd., published January 20, 2002, p. 43-47,119
[0012]
[Problems to be solved by the invention]
The present invention provides a novel method for avoiding a connection method from becoming complicated and a load from being concentrated on a specific device in a system in which three or more terminals connected to a network share data simultaneously. It is an issue to provide.
[0013]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is a system comprising three or more terminals and a server connected to a communication network, wherein the server has a function of instructing each terminal to be a terminal to be connected. The terminal has a function of outputting data sent from the terminal of the connection partner to its own user, and a function of transferring the data to a terminal other than the transmission source of the data among the connection partners. The system is characterized in that the data can be shared at the same time.
The data shared between terminals in the present invention may be audio data, image data, text data, or a format of sharing them simultaneously.
In addition, the connection method may take different configurations for audio data, image data, and text data.
[0014]
Further, the present invention is an information terminal device connected to a communication network and having unique terminal information, an input means for accepting information input from a user, and information input via the input means. Transmitting means for transmitting information added with terminal information unique to the terminal apparatus to other information terminal apparatuses connected to the communication network, and receiving means for receiving information from other information terminal apparatuses connected via the communication network And output means for outputting a part or all of the information received by the receiving means to the user, and information from the other information terminal device received by the receiving means is the other information terminal When the terminal information unique to the device is included, the other information terminal device is identified from the unique terminal information, and the information terminal device other than the identified other information terminal device is identified. And wherein the transfer of credit information, the information terminal device capable of achieving the above object.
[0015]
Furthermore, the present invention provides at least three information terminal devices having unique terminal information, a server that manages terminal information of the information terminal device, a communication network that connects the information terminal device and the server, An information sharing network system including: an input unit that receives information input from a user; and information that is input via the input unit, and the terminal information unique to the information terminal device is added Transmitting means for transmitting information to other information terminal devices connected to the communication network, receiving means for receiving information from other information terminal devices connected via the communication network, and information received by the receiving means Output means for outputting a part or all of the information to the user, the server is for each information terminal device connected to the communication network, A transmission / reception relationship management means for managing a relationship for transmitting / receiving information, wherein a transmission means of an information terminal device connected to a communication network communicates terminal information unique to the information terminal device to the server, and a transmission / reception relationship of the server Based on the unique terminal information communicated from the information terminal device connected to the communication network, the management means communicates the information transmission / reception relationship between the information terminal devices connected to the communication network to each information terminal device, According to the information sharing network system, the information input from the user is transferred so that there is no duplication between the information terminals based on the transmission / reception relationship, and the information can be shared substantially simultaneously. Can be achieved.
[0016]
In a preferred aspect of the present invention, in the information sharing network system, each information is set such that, in the server, the transmission / reception relationship managed by the transmission / reception relationship management means has a tree structure starting from a specific information terminal device. It is preferable to contact the terminal device.
[0017]
Furthermore, in another preferred aspect, in the information sharing network system, the unique terminal information of the information terminal device connected to the communication network is at least IP address information, port number information, information processing capability information of the information terminal device, And, in the server in which the terminal information including the information including the connection communication line state information is communicated, the transmission / reception relationship managed by the transmission / reception relationship management means is determined based on the terminal information, and the determined It is preferable that the information transmission / reception relationship is communicated to each information terminal device.
[0018]
According to the present invention, at least three information terminal devices having unique terminal information, a server that manages terminal information of the information terminal device, a communication network that connects the information terminal device and the server, In the information sharing method in the information sharing network system, the information terminal device accepts information input from the user by the input means, and the terminal information unique to the information terminal device is added to the information input via the input means. The added information is transmitted to other information terminal devices connected to the communication network by the transmitting means, and the information is received by the receiving means from other information terminal devices connected via the communication network, and received by the receiving means. Each information terminal in which a part or all of the received information is output to the user by the output means, and the server is connected to the communication network The transmission / reception relationship management means manages the relationship of transmitting / receiving information to the device, and the transmission means of the information terminal device connected to the communication network communicates the terminal information unique to the information terminal device to the server, Based on the unique terminal information communicated from the information terminal device connected to the communication network, the server transmission / reception relationship management means communicates the information transmission / reception relationship between the information terminal devices connected to the communication network to each information terminal device. The information input from the user is transferred based on the transmission / reception relationship so that there is no duplication between the information terminals, and the information can be shared substantially simultaneously. preferable.
[0019]
In a preferred aspect of the present invention, the information sharing method is characterized in that, in the server, the information transmission / reception relationship managed by the transmission / reception relationship management means contacts each information terminal device so as to have a tree structure.
[0020]
In still another aspect, the information sharing method is characterized in that the unique terminal information of the information terminal device connected to the communication network includes at least IP address information, port number information, information processing capability information of the information terminal device, and connection communication. In the server including the line status information and the terminal information including the information communicated, the transmission / reception relationship managed by the transmission / reception relationship management means is determined based on the terminal information, and the determined transmission / reception relationship The information terminal device is contacted.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. As a procedure for sharing data between terminals at the same time, generally, a stage in which connection is first established between terminals (hereinafter referred to as “connection stage”), and a stage in which data is transmitted / received to / from a connection partner after the connection stage ( Hereinafter, it is divided into “data transmission / reception stage”.
[0022]
Hereinafter, “connection” refers to IP addresses, port numbers, information processing capability information such as processors and network devices installed in terminal devices, and / or between terminal devices and / or servers that are connection partners, And, by exchanging various terminal information such as line information such as connection line capacity, it means that data can be transmitted and received between terminals. “Connection method (or connection relationship)” This refers to how to connect which terminal is connected to which terminal in order to share data among a number of terminals.
[0023]
The feature of the present invention is that in the connection stage, the server instructs each terminal to connect to each terminal so as to realize a connection method in which three or more terminals can efficiently share data simultaneously without going through the server. There is to do.
[0024]
Another feature of the present invention is that each terminal transfers data received from another terminal to another terminal so that three or more terminals can simultaneously share data without going through a server in the data transmission / reception stage. It is to have a function.
[0025]
FIG. 7 shows an example of the network configuration of the present invention. The users 4a, 4b,... 4g use the terminals 2a, 2b,... 2g connected to the network 6 to simultaneously share data such as voice, image, and text input to the terminals. The server 1 instructs the connection partner to each terminal in the connection stage. The terminals 2a, 2b,... 2g may be personal computers, IP telephones, or other devices that can perform data communication in a communication network. When audio data is shared, the terminal is provided with a microphone and a speaker, headphones, or a receiver. When image data is shared, the terminal is provided with a camera and a screen. When sharing text data, the terminal is provided with a text input device such as a keyboard and a touch panel, and a screen.
[0026]
FIG. 8 is a flowchart showing an example of the control method of the present invention. The upper part shows the connection stage and the lower part shows the data transmission / reception stage. The right column shows the communication between the server and the terminal, and the left column shows the communication between the terminals. First, in S101, the terminal notifies the server of information such as its own IP address and port number (hereinafter also referred to as “terminal information”). In S102, the server sets the connection method between the terminals so as to have a tree structure, and informs each terminal of the terminal information of the connection partner. In S103, each terminal starts connection to the connection partner. The terminal that has received the connection request confirms that the partner is a connection partner instructed by the server by referring to its own address table, and notifies that the connection is accepted. Thereby, a connection is established between the terminals. In S104, each terminal notifies the server that a connection has been established with the connection partner instructed by the server. In S105, when the connection between all terminals is established as instructed, the server notifies each terminal to that effect. The above is the connection stage. In S106, data is transmitted and received between terminals. With this procedure, three or more terminals can share data simultaneously.
[0027]
FIG. 9 is a diagram showing a configuration example of a transmission / reception relationship based on the present invention. In setting the connection method between terminals in the connection stage, the server 1 creates a list 3 serving as a transmission / reception relationship management means. In list 3, the connection partner of each terminal is set. The server 1 instructs the terminals to be connected to the terminals 2a to 2g according to the list 3 like C400 to C406. For example, the terminal A (2a) is instructed by the C403 to connect to the terminal B (2b), and the terminal A (2a), the terminal D (2d), and the terminal E (2e) are instructed to the terminal B (2b). Is instructed to connect to C402. In response to the instruction from the server, each terminal starts connection as in C407 to C412. For example, terminal A (2a) and terminal B (2b) establish a connection as in C407. The above is the connection stage. Each terminal stores the connection partner instructed by the server 1 in the form of address tables 5b, 5c, 5e, 5f, for example. This address table can be rewritten at any time by an instruction from the server 1. For example, when the server 1 connects a new terminal to the terminal F (2f) based on the new list, the server 1 instructs the new connection partner to the terminal F (2f), and enters the address table 5f of the terminal F (2f). A new connection partner is added.
[0028]
D400 to D405 in FIG. 9 indicate data transmission / reception between terminals in the data transmission / reception stage. For example, the data input to the terminal B (2b) by the user of the terminal B (2b) is transmitted to the terminal A (2a), the terminal D (2d), and the terminal E (2e) to which the terminal B (2b) is connected. , D400, D401, and D402. Since terminal A (2a) and terminal D (2d) have no connection partner other than terminal B (2b), there is no need to transfer data to other terminals. On the other hand, since terminal E (2e) is connected to terminal F (2f) in addition to terminal B (2b), all data received from terminal B (2b) is transferred to terminal F (2f) as D403. Forward. Since terminal F (2f) is connected to terminal G (2g) and terminal C (2c) in addition to terminal E (2e), all data received from terminal E (2e) is represented as D404 and D405. To terminal G (2g) and terminal C (2c). Terminal G (2g) and terminal C (2c) do not transfer because there is no connection partner other than terminal F (2f). Each terminal that receives the data outputs the data to each user.
[0029]
In FIG. 9, the server 1 creates the list 3 so that the connection relationship between the terminals has a tree structure as a whole. By forming the tree structure, complexity such as mesh type can be avoided. Further, since the server does not transfer data, it is possible to avoid the concentration of loads as in the server type. Further, the number of terminals that must be passed through when certain data is transferred between terminals is always at the bottom of the tree (terminal A (2a), terminal D (2d), terminal G (2g) in FIG. 9). , Terminal C (2c)) to the top of the tree (terminal E (2e) in FIG. 9) is kept twice the number of terminals. For example, the data transmitted by the terminal A (2a) arrives via the terminal B (2b), the terminal E (2e), and the terminal F (2f) before reaching the terminal C (2c), while the terminal B (2b) ), Data transmitted by the terminal E (2e) and the terminal F (2f) are delivered to the farthest terminal through a smaller number of terminals. As a result, a delay in data transmission / reception can be reduced. In addition, as long as the tree structure is adopted, there is no connection in the form of a loop in whole or in part, so that certain data does not circulate to the transmission source terminal.
[0030]
The form of the tree structure can be changed. In FIG. 9, two terminals, terminal B (2b) and terminal F (2f), are connected to terminal E (2e) at the top of the tree structure, but this number may be three or more. . The same applies to other terminals. The tree structure depends on the server 1 list creation policy. This policy can be adjusted according to the processing capability and communication line capacity of each terminal. For example, when the processing capability of the transfer function of the terminal is high, a policy that increases the number of terminals connected to the terminal may be adopted. At this time, since the number of terminals from the top to the bottom of the tree can be reduced, delay due to data transfer can be reduced. On the other hand, when the processing capability of the terminal transfer function is low, a policy for reducing the number of terminals connected to the terminals may be adopted. At this time, since the number of terminals from the top to the bottom of the tree increases, the delay due to data transfer increases.
[0031]
FIG. 10 shows a preferred configuration example of the server and the terminal in the present invention. The server 1 includes a terminal information storage device 12 that receives and stores terminal information from each terminal, a connection method setting device 15 that sets a connection method between terminals, and a connection partner instruction that instructs each terminal of a connection partner Device 16. The connection method setting device 16 includes a list 3 that describes connection partners of each terminal. The terminal 2 processes the data receiving device 9 that receives data from other terminals, the data transmitting device 10 that transmits data to the other terminals, and the data received from the other terminals so that the data can be output to the user. A user output device 7 for processing, a user input device 8 for processing data input to the terminal by the user so that it can be transmitted to other terminals, and a data transmission device 10 in response to an instruction from the server And a transmission destination setting device 17 for instructing the transmission destination of each data. The transmission destination setting device 17 includes an address table 5. The address table 5 stores the terminal information of the connection partner instructed from the server.
[0032]
The transmission destination setting device 17 instructs a transmission destination for each piece of data received from another terminal and data input by the user 4. That is, data received from another terminal is received by the data receiving device 9 and output to the user 4 via the user output device 7, and at the same time, transferred to the data transmitting device 10 like 50. In the transmission destination setting device 17, the transmission destination is set so as to transfer the data to terminals other than the transmission source of the data among the connection partners stored in the address table 5. The data transmission device 10 transmits to this transmission destination. On the other hand, the data input by the user 4 is processed so that it can be transmitted to other terminals by the user input device 8, and then transmitted to all connection partners stored in the address table 5 in the transmission destination setting device 17. And is transmitted by the data transmitting apparatus 10. The difference between the terminal structure of the present invention and the mesh type terminal structure is that the transmission destination setting device 17 that can distribute the transmission destination for each data is provided.
[0033]
The difference between the server configuration of the present invention and the server type server configuration is that the server of the present invention does not transmit or receive data.
[0034]
On the other hand, the difference between the terminal structure of the present invention and the peer-to-peer type terminal structure is that the terminal of the present invention has a function of transferring data received from other terminals, such as 50 and the transmission destination setting device 17. It is that you are. With this function, for example, terminals B (2b), E (2e), and F (2f) are transferring terminals in the connection method in FIG. 9, and these function as a server in the server type is distributed. It can be said that it is responsible for. As a result, the problem that a load is locally applied to one server in the server type can be solved. In addition, since the structure of each terminal is the same and all terminals have a transfer function, the terminal responsible for the position 2b in the tree structure is changed to the terminal A instead of the terminal B, and the terminal responsible for the position 2a is Terminal B can be used instead of terminal A. This can be easily achieved by the server rewriting list 3 and instructing each terminal of the connection partner according to time and circumstances. Therefore, it is possible to solve the problem in the server type that is restricted by the capacity of the server.
[0035]
By changing the list in the server, all terminals share data as shown in FIG. 9, and the terminals are divided into a plurality of groups as shown in FIG. 11, and data is shared within each group. It can also be changed. That is, the list 3 in FIG. 9 may be rewritten as the list 3 ′ in FIG. 11, and the server may instruct each terminal of the connection partner accordingly. Then, for example, the address tables of the terminals B (2b) and E (2e) are rewritten from the contents such as the address tables 5b and 5e in FIG. 9 to the contents such as the address tables 5b ′ and 5e ′ in FIG. Become.
[0036]
The tree structure does not complicate the connection method even if the number of terminals increases. Even if the number of terminals increases, the tree structure can be maintained by additionally connecting terminals under the lowest terminal of the tree. The additional connection method depends on the server listing policy. For example, as shown in FIG. 12, the list of server 1 is rewritten as list 3 ″, and terminals A (2a), D (2d), G (2g), and C (2c) are set as new connection partners. Terminal H (2h), terminal I (2i), terminal J (2j), terminal K (2k), terminal L (2l), and terminal M (2m) are instructed. As a result, for example, the address table of the terminal C (2c) is rewritten from the contents as shown in the address table 5c of FIG. 9 to the contents as shown in the address table 5c ′ of FIG.
[0037]
As an example of the utilization method of the present invention, a video conference can be realized as shown in FIG. That is, among the terminals 2a to 2g registered in the server, the users 4a, 4b, 4d, and 4f of the terminals 2a, 2b, 2d, and 2f participate in the video conference, and 17a, 17b, 17d, and 17f Share audio and images. FIG. 14 illustrates the flowchart.
[0038]
In FIG. 14, in S201, each terminal communicates terminal information to the server, and in S202, the server stores the terminal information of each terminal. The above is the “registration procedure”. After this, if any of the terminals desires, data can be shared by forming a group with other terminals. That is, in S203, when a terminal notifies the server that it wishes to convene a meeting, in S204, the server notifies other terminals that the meeting is convened to confirm attendance. In S205, the terminal that wishes to participate responds to the server to that effect. In S206, the server sets a connection method between terminals desiring to participate in the conference, and instructs each terminal of a connection partner. In response to this, in S207, each terminal starts connection with the connection partner instructed by the server. That is, the terminal that has received the connection request confirms that the other party is a connection partner instructed by the server, and notifies that the connection is accepted. In S208, each terminal notifies the server that the connection has been established. The above is the connection stage. Thereafter, in S209, audio data and image data are transmitted / received to / from the connection partner. As a result, data can be shared within the group and a conference can be held.
[0039]
In S205, each terminal notifies the server of information such as the capability of the terminal as well as a request for participation in the conference, and the server sets an optimal connection method according to the capability or the like. You can also. Specifically, the processing capability of the terminal's CPU, etc., the type of operating system (OS), the presence or absence of mixing functions such as voice data, whether the terminal is online or offline, It is possible to notify the server of a state such as “loading” and the communication line capacity of the network to which the terminal is connected.
[0040]
In S209, the data transmitted / received by each terminal may be text data as well as voice data and image data, or may be a form in which a plurality of types of data are transmitted / received simultaneously.
[0041]
After the conference is started as shown in FIG. 14, when a terminal that has not contacted to participate in the conference in S205 wishes to participate in the conference again, or a newly registered terminal participates in the conference In S206, the server sets the setting method again, and only needs to indicate a new connection partner to the terminal that needs to change the connection partner. As a result, the new terminal establishes a connection with another terminal in the same manner as in S207, and the server notifies each terminal that a connection has been established for each new terminal, as in S208, and transmits and receives data in the same manner as in S209. I do.
[0042]
Furthermore, as the connection method in S206, the connection method for audio data and the connection method for image data can be set differently, and different connection partners can be instructed for each data to each terminal. In FIG. 15, if the connection is made from C500 to C504 for sharing audio data and the connection is made from C510 to C514 for sharing image data, terminal B (2b) is burdened with transfer of image data. However, while the audio data is only received, the terminal E is loaded with the transfer of the audio data, but the image data is only received from the terminal C (2c). In this way, the burden on each terminal can be distributed.
According to the present invention, in a system in which three or more terminals connected to a network share data at the same time, the connection method is not complicated, and a novel technique for avoiding concentration of a load on a specific device Can be provided.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an example of a connection stage and a data transmission / reception stage of a conventional technique (mesh type).
FIG. 2 is a diagram illustrating an example of a structure in a terminal according to a conventional technique (mesh type).
FIG. 3 is a diagram showing an example of a connection stage and a data transmission / reception stage of a conventional technique (server type).
FIG. 4 is a diagram showing a structural example in a server and in a terminal in a conventional technique (server type).
FIG. 5 is a diagram illustrating an example of a connection stage and a data transmission / reception stage of a conventional technique (peer-to-peer type).
FIG. 6 is a diagram showing a structural example in a server and in a terminal in a conventional technique (peer-to-peer type).
FIG. 7 is a diagram illustrating an example of a hardware configuration of the present invention.
FIG. 8 is an example of a flowchart of a control method of the present invention.
FIG. 9 is a diagram illustrating a configuration example of the present invention.
FIG. 10 is a diagram showing a structural example in a server and a terminal in the present invention.
FIG. 11 is a diagram illustrating a configuration example of the present invention.
FIG. 12 is a diagram illustrating a configuration example of the present invention.
FIG. 13 is a diagram illustrating an example of a hardware configuration of the present invention.
FIG. 14 is an example of a flowchart of a control method of the present invention.
FIG. 15 is a diagram illustrating a configuration example of the present invention.
[Explanation of symbols]
1 ... server,
2, 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2j, 2k, 2l, 2m,... Terminal,
3 ... List,
4, 4a, 4b, 4c, 4d, 4e, 4f, 4g ... user,
5, 5b, 5c, 5e, 5f ... address table,
6 ... communication network,
7: User output device,
8: User input device,
9: Data receiving device,
10: Data transmission device,
11 ... Transmission destination instruction device,
12 ... Terminal information storage device,
13: Terminal information communication device,
14: Transmission destination setting device,
15 ... Connection method setting device,
16: Connection partner instruction device,
17 ... Transmission destination setting device
17a, 17b, 17e, 17g ... screen

Claims (6)

At least three information terminal devices with unique terminal information;
A server for managing terminal information of the information terminal device;
A communication network connecting the information terminal device and the server;
I have a,
The information terminal device is
An input means for receiving information input from the user;
Information obtained by adding terminal information unique to the information terminal device to information input via the input means is transmitted to another information terminal device connected to the communication network, and terminal information unique to the information terminal device And a transmission means for communicating the data sharing request to the server ;
Receiving means for receiving information from other information terminal devices connected via a communication network;
Output means for outputting a part or all of the information received by the receiving means to the user;
An information sharing network system comprising :
When the server receives a response from an information terminal device connected to the communication network that accepts the data sharing request, an information terminal that realizes data sharing based on the unique terminal information of the information terminal device that has made the response All connection partners specified from the determined data transmission path only for the information terminal apparatus that has determined the data transmission path by dynamically forming a tree structure representing the connection relation of the apparatus and has accepted the data sharing request Transmission / reception relationship management means for managing the relationship of transmitting / receiving information to each information terminal device connected to the communication network by transmitting the identification information of
When the information from the other information terminal apparatus received by the receiving means includes terminal information specific to the other information terminal apparatus, the transmitting means includes the connection partner identified by the identification information. When the received information is transferred to an information terminal device other than the source of the information and information is input from the user by the input means, the information terminal device of the connection partner identified by the identification information Information sharing network system, wherein information inputted by a user is transferred so that there is no duplication between information terminals sharing data, and the information can be shared substantially simultaneously . An information sharing network system according to claim 1 ,
In the server, the information sharing network system is characterized in that the transmission / reception relationship managed by the transmission / reception relationship management means contacts each information terminal device so as to have a tree structure. The information sharing network system according to claim 1 or 2 ,
Unique terminal information connected to the communication network the information terminal device, and at least includes an IP address information and port number information, further information processing capability information or access communication line status information of the information terminal device additionally contains-law Can
In the server to which the terminal information including the information is communicated, the transmission / reception relationship managed by the transmission / reception relationship management means is determined based on the terminal information, and the determined transmission / reception relationship is communicated to each information terminal device. An information sharing network system characterized by the above. At least three information terminal devices with unique terminal information;
A server for managing terminal information of the information terminal device;
A communication network connecting the information terminal device and the server;
And have your information sharing network system having a,
The information terminal device is
Accept information input from the user by input means,
Information transmitted through the input means is added to the information terminal device specific terminal information added to the information terminal device, and transmitted to other information terminal devices connected to the communication network by the transmission means,
Information is received by the receiving means from other information terminal devices connected via the communication network,
An information sharing method for outputting a part or all of the information received by the receiving means to the user by an output means,
The server manages the relationship of transmitting and receiving information to each information terminal device connected to the communication network by the transmission / reception relationship management means,
The transmission means of the information terminal device connected to the communication network communicates the unique terminal information and data sharing request of the information terminal device to the server, and the transmission / reception relationship management means of the server accepts the data sharing request. When a response is received from an information terminal device connected to the communication network, a tree structure representing the connection relationship of the information terminal devices that realize data sharing is dynamically created based on the unique terminal information of the information terminal device that has received the response. The identification information of all the connection partners specified from the confirmed data transmission path is transmitted only to each information terminal device that has formed the data transmission path and has accepted the data sharing request , and the reception When the information from another information terminal device received by the means includes terminal information specific to the other information terminal device, the information When the received information is transferred to the information terminal device other than the transmission source of the information among the connection partners identified by the information, and the information is input from the user by the input means, the information is identified by the identification information. by transferring the connection information to the other party of the information terminal device that can, the information input by the user is transferred so as not to overlap between the information terminals that share data, and to allow substantially simultaneously share the information An information sharing method characterized by the above. An information sharing method according to claim 4 , wherein
In the server, the information sharing method is characterized in that each information terminal device is contacted so that the transmission / reception relationship managed by the transmission / reception relationship management means has a tree structure. The information sharing method according to claim 4 or 5 ,
Unique terminal information connected to the communication network the information terminal device, and at least includes an IP address information and port number information, further information processing capability information or access communication line status information of the information terminal device additionally contains-law Can
In the server to which the terminal information including the information is communicated, the transmission / reception relationship managed by the transmission / reception relationship management means is determined based on the terminal information, and the determined transmission / reception relationship is communicated to each information terminal device. An information sharing network system characterized by the above.

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