JP4463519B2 - User terminal and program - Google Patents

Description

  The present invention relates to a technique for distributing information using wireless communication between terminals.

  With the modernization of network technology, a content distribution system using P2P (Peer to Peer) or the like in which client terminals exchange data in an equal relationship without using a server is considered.

  In a conventional content distribution system, it is difficult to transmit local information and preference information of the own terminal to other terminals while not identifying which client terminal's preference information is specified, that is, while ensuring anonymity. It was. Furthermore, it has been difficult to change the type of content exchanged between client terminals in accordance with the information type required by neighboring terminals. That is, it is difficult to realize content distribution according to regional characteristics and content distribution according to information indicating a requested content type such as local preference information or presence.

  Further, in the conventional content distribution system, it is difficult to control how the content in the system is biased. In other words, a means for controlling the distribution status of contents between client terminals as a whole system has not been provided.

  The present invention has been made in view of the above points, and enables distribution of content based on personal information ensuring anonymity and manages distribution by controlling the content exchanged between terminals. It is an object to provide a distribution system that can be used.

One aspect of the present invention is a user terminal having a storage area for storing information and capable of transmitting and receiving data to and from a server and other user terminals via an access point, wherein the storage area is , Including a common area for storing information for distribution to other user terminals, the common area including a content information area for storing content information for distribution to other user terminals, and the user And a field information area for storing field information that is preference and / or area information regarding other user terminals, wherein the user terminal is a content stored in the content information area. Global content information distribution rules defining conditions for selecting distribution content information to be distributed from information to other user terminals, A content information distribution rule obtaining means for obtaining from another user terminal, a field information acquiring unit that acquires field information from the other user terminal, the field information obtained from another user terminal, already held Field information area storage means for storing new field information by merging with existing field information and storing it in the field information area of the common area, and information regarding a request for content information input by a user using the user terminal Field information reflecting means for storing and reflecting as field information in the field information area, field information distributing means for distributing the field information stored in the field information area to other user terminals, and content information That obtains from the server or other user terminal A condition defined in the global content information distribution rule from information acquisition means, content information area storage means for storing the acquired content information in the content information area, and all content information stored in the content information area The first selection means for selecting the distribution content information based on the information , the global content information distribution means for distributing the distribution content information selected by the first selection means to other user terminals, and the field information area Local content distribution rule creation means for creating a local content information distribution rule from the field information that is stored, and based on the conditions stipulated in the local content information distribution rule from all the content information stored in the content information area The distribution content information And a local content information distribution unit that distributes the distribution content information selected by the second selection unit to other user terminals.

The user terminal configured as described above has a common area for storing content information distributed between user terminals. The common area further includes a content information area for storing content information and a field information area for storing field information. Then, the user terminal stores the content information received from the server or another user terminal in the content information area of the common area. Further, the user terminal merges the field information received from the other user terminals with the field information held by the user terminal into new field information, and then stores it in the field information area of the common area. Further, the user terminal selects distribution content information to be distributed to other user terminals from the content information stored in the content information area based on the conditions defined in the global content information distribution rule, To user terminals. Also, the user terminal creates a local content information distribution rule from the field information. Then, distribution content information to be distributed to other user terminals is selected from the content information stored in the content information area based on the conditions stipulated in the local content information distribution rule, and is transmitted to the other user terminals. To deliver. In addition, the user terminal stores information relating to the content information requested by the user using the user terminal as field information in the field information area and reflects it, and the field information reflected by the reflecting means Field information distribution means for distributing to the user terminal.

According to this, distribution of content information according to the type requested by the user can be realized by including information according to regional characteristics and preference information in the field information. In other words, by distributing the various content information selected based on the global content information distribution rule, and distributing the content information selected based on the local content information distribution rule created from the field information , It is possible to distribute content information suitable for the sex uniformly. Furthermore, field information reflecting its own preference information and the like is distributed among user terminals configured as described above, so that content information that matches the user's preference and regional characteristics is distributed. The possibility can be increased. Further, by sending the field information, which is a group of preference information transmitted so far, including its own information, it is possible to prevent the identification of individual user information. That is, it is possible to ensure the anonymity of personal information and improve the security of the distribution system.

In another aspect of the above user terminal, the user terminal distributes the content information band used when distributing the content information to another user terminal and the field information to the other user terminal. A field information band to be used at the time, and the content information band includes a global content information sub-band to be used when distributing the content information selected by the first selection means, and the second selection. A local content information sub-band used when distributing the content information selected by the means, and the global content information distribution rule defines content information distributed from the global content information sub-band. The local content information distribution rule is determined by the local content information sub-band. It stipulates the content information to be al delivered, the user terminal includes a field information distribution rule acquisition means for acquiring field information distribution rules governing the distribution of the field information from the server or another user terminal, The global content information distribution unit distributes the content information selected by the first selection unit from the global content information sub-band based on the global content information distribution rule, and distributes the local content information The means distributes the content information selected by the second selection information from the local content information sub-band based on the local content information distribution rule, and the field information distribution means is based on the field information distribution rule. And From Rudo information zone, it distributes field information in which the reflecting means to reflect.

  In the user terminal configured as described above, the field information is distributed from the field information band based on the field information distribution rule. The content information selected by the first selection means is distributed from the global content information sub-band based on the global content information distribution rule. The content information selected by the second selection means is distributed from the local content information sub-band based on the local content information distribution rule. Thus, by dividing the communication band into a plurality of bands, it becomes possible to distribute content information corresponding to field information in accordance with the priority order. For example, it is possible to control a certain type of content information from a local content information sub-band to facilitate push-type distribution to some user terminal groups.

In another aspect of the above user terminal, an overall distribution rule acquisition unit that acquires, from the server or other user terminal, an overall distribution rule that defines allocation between bands when information is distributed to another user terminal. And an adjustment unit that adjusts the global content information distribution unit, the local content information distribution unit, and the field information distribution unit to distribute each information based on the assignment defined in the overall distribution rule; Is further provided. According to this, it is possible to easily set which band is to be communicated and how much by the general distribution rule. That is, it is possible to easily adjust the distribution status of each information.

In another mode of the user terminal, the common area against the content information area and the field information region constituting by deletion of the content information and the field information, storage processing of the content information and the field information, content information and the field The common area management rule that defines the information division process, the content information and field information change process, or the adjustment process of the increase and decrease of the content information area and the field information area is transmitted via the other user terminal or the access point A common area management rule receiving means for receiving from the server; and a common area control means for processing the content information area and the field information area constituting the common area based on the common area management rule. According to this, the ratio of the area within the common area can be freely set by the common area management rule. That is, the state of the common area can be easily adjusted according to the distribution status of each information.

In another aspect of the user terminal, control information receiving means for receiving control information defining the change of the common area management rule from the server or another user terminal , and the common information based on the control information Common area control rule resetting means for changing and resetting the rules of the area management rules. According to this, it is possible to freely and easily change the rules relating to the ratio of the area in the common area, etc., based on the control information.

In another mode of the user terminal, the user terminal, the global content information distribution rule, the local content information distribution rules, field information distribution rules or in any one or more for the rules of the overall distribution rules Control information receiving means for receiving control information defining the change of the information from the server or another user terminal, and based on the control information, the global content information distribution rule, the local content information distribution rule, and the field information distribution rule Or a rule resetting means for changing and resetting the rules of the entire distribution rule. According to this, it is possible to freely and easily change the rules of various distribution rules based on the control information.

In another aspect of the user terminal, the user terminal further has a control information band to be used when the control information is distributed to another user terminal, and the user terminal An acquisition means for acquiring a control information distribution rule that regulates distribution of control information from the server or another user terminal, and the control information from the control information band based on the control information distribution rule to another user terminal Control information distribution means for distributing to According to this, the control information is distributed from the control information band based on the control information distribution rule. Therefore, based on the control information, it is possible to freely and easily change the control information distribution rule that is a rule relating to the distribution of the control information. Specifically, when it is desired to cancel the control information that has been distributed once, the old control information can be deleted based on the new control information.

  In still another aspect of the user terminal, the adjustment unit is configured to use the global content information distribution unit, the local content information distribution unit, the field information distribution unit, and the control information based on the assignment defined in the general distribution rule. The distribution means adjusts so as to distribute each information. According to this, it is possible to easily set which band is to be communicated and how much by the general distribution rule. That is, it is possible to easily adjust the distribution status of each information.

In another aspect of the present invention, a user terminal having a storage area for storing information and capable of transmitting / receiving data to / from another user terminal, wherein the storage area is connected to another user terminal. It includes a common area for storing information for distribution, and the common area stores a content information area for storing content information for distribution to other user terminals and control information for controlling the distribution of information. A control information area, and the user terminal transmits a content information band used when distributing the content information to another user terminal, and the control information is transmitted to the other user terminal. a control information band used when delivering, owns, when selecting the distribution content information to be distributed to the other user terminal, from the content information stored in the content information area Content information distribution rule acquisition means for acquiring a content information distribution rule that defines a condition, control information reception means for receiving control information that defines control for the content information distribution rule, and the control information in the control information area Control information area storage means for storing, content information distribution rule resetting means for resetting the rules of the content information distribution rule based on the control information, content information acquisition means for acquiring a plurality of the content information, Content information area storage means for storing the acquired content information in the content information area, and the distribution content based on the conditions stipulated in the content information distribution rule from all the content information stored in the content information area selection means for selecting information, the control information An acquisition unit that acquires a control information distribution rule that defines distribution; a control information distribution rule resetting unit that resets the control information distribution rule based on the control information acquired by the control information receiving unit; and the control information Control information distribution means for distributing the control information from the control information band to another terminal device based on the distribution rule, and the selection means selected from the content information band based on the content information distribution rule The content information distribution means for distributing content information .

The user terminal configured as described above has a common area for storing content information distributed between user terminals. The common area further includes a content information area for storing content information and a control information area for storing control information. The user terminal resets the content information distribution rule based on the control information. In addition, the user terminal has a content information band used when distributing the content information to another user terminal and a control information band used when distributing the control information to another user terminal. I have it. Based on the conditions stipulated in the content information distribution rule reset by the control information, the user terminal sends the distribution content information to be distributed to other user terminals from the content information stored in the content information area. Select and distribute to other user terminals from the content information band . Further, the user terminal has a control information distribution rule resetting unit for resetting the control information distribution rule based on the control information and a control information from the control information band to another terminal device based on the control information distribution rule. Control information distribution means for distribution.

According to this, it becomes possible to freely and easily change the content information distribution rule based on the control information. Therefore, it is possible to control the distribution of content distributed between user terminals. Furthermore, by dividing the communication band into a plurality of bands, the content information and the control information can be reliably distributed according to the priority order. Further, based on the control information, it is possible to freely and easily change the control information distribution rule that regulates the distribution of the control information.

  In another aspect of the above user terminal, a general distribution rule acquisition unit that acquires an overall distribution rule that defines allocation between bands when information is distributed to other user terminals, and the general distribution rule The content information distribution unit and the control information distribution unit further include an adjustment unit that adjusts the distribution of each information based on the allocation. According to this, the ratio between bands can be easily adjusted based on the whole distribution rule.

  In another aspect of the user terminal, a common area management rule receiving unit that receives a common area management rule that defines control for the content information area and the control information area that constitute the common area, and the common area management rule includes: And a common area control means for controlling the content information area and the control information area constituting the common area. According to this, based on the common area management rule, the ratio of the content information area and the control information area in the common area can be freely set.

  In still another aspect of the user terminal, the control information includes a control rule for a common area control rule, and the user terminal defines the common area control rule based on the control information. Common area control rule resetting means for resetting According to this, it is possible to easily change the definition of the common area control rule based on the control information.

According to still another aspect of the present invention, there is provided a program executed by a computer having a storage area for storing information and capable of transmitting / receiving data to / from a server and another computer via an access point, the storage The area includes a common area for storing information for distribution to other computers, and the common area includes a content information area for storing content information for distribution to other computers, the computer, and the like. A field information area for storing field information which is preference or / and regional information about the computer, and the program distributes the content information stored in the content information area to other computers. Glow that stipulates conditions for selecting distribution content information for Le content information distribution rules, content information distribution rule obtaining means for obtaining from the server or other computer, field information acquiring unit that acquires field information from another computer, the field information obtained from another user terminal, Field information area storage means for storing new field information by merging with already held field information and storing in the field information area of the common area, a request for content information input by a user using the computer Field information reflecting means for storing and reflecting information as field information in the field information area, field information distributing means for distributing field information stored in the field information area to other computers, and content information in the server Or content information acquisition means for acquiring from other computers, content information area storage means for storing the acquired content information in the content information area, and distribution of the global content information from all content information stored in the content information area First selection means for selecting the distribution content information based on the conditions defined in the rule, global content information distribution means for distributing the distribution content information selected by the first selection means to another computer, the field information area Local content distribution rule creation means for creating a local content information distribution rule from the field information stored in the content information, and from all the content information stored in the content information area, the local content information distribution rule The computer is caused to function as a second selection unit that selects the distribution content information based on a condition, and a local content information distribution unit that distributes the distribution content information selected by the second selection unit to another computer.

  By executing the above program by a computer, the above-described user terminal can be realized. Moreover, each aspect of the above-described user terminal can be realized in the same manner.

  ADVANTAGE OF THE INVENTION According to this invention, while enabling the content delivery based on the personal information which ensured anonymity, distribution can be managed by controlling the content exchanged between terminals.

  Preferred embodiments of the present invention will be described below with reference to the drawings. The present invention is capable of controlling the distribution of content information based on field information and control information in a distribution system in which each terminal operates autonomously. Specifically, the present invention can be used in a distribution system in which a plurality of user terminals capable of wireless communication operate autonomously.

[Distribution system]
First, the distribution system according to the present invention will be described. FIG. 1 shows a schematic configuration of the distribution system. A distribution system 100 shown in FIG. 1 distributes various content information widely and uniformly by autonomously operating a plurality of user terminals and repeatedly performing wireless communication.

  As shown in FIG. 1, in the distribution system 100, the access point 3 and the content information server 4 are communicably connected via a network 2. One preferred example of network 2 is the Internet. The content information server 4 is connected to a content database (hereinafter referred to as “DB”) 5.

  In the distribution system 100, the access point 3, the user terminal 20, and the user terminal 21 are connected to each other so as to be capable of wireless communication. For convenience, FIG. 1 shows 3 as an access point and 2 and 20 and 21 as user terminals, but the distribution system 100 is not limited to these, and a plurality of access points and a plurality of user terminals are shown. Assume that a user terminal is included as a component. As wireless communication, various methods including infrared communication, Bluetooth (registered trademark), wireless LAN, and UWB (Ultra Wideband) can be used. In this embodiment, Bluetooth is applied. In the present invention, when wireless communication is infrared communication, the access point is an infrared port, and when wireless communication is an IC tag, the access point is an IC tag reader / writer.

  First, the outline of the content information distribution method by this system will be described. The access point 3 constituting the distribution system 100 is an information distribution terminal that is installed in association with an advertisement or the like that attracts the user's interest and distributes content information associated with the advertisement to a plurality of user terminals. . When the access point 3 confirms that the user terminal exists in the communicable area, the access point 3 distributes the content information to the user terminal. A plurality of access points 3 are installed, from which various pieces of content information are distributed to the user terminals. The access point 3 acquires various content information from the content information server 4 via the network 2. The content information server 4 stores and manages content information distributed to each access point 3 in the content information DB 5.

  The user terminal 20 stores the content information acquired from the access point 3 in the content information area of the common area. Then, the user terminal 20 determines whether to copy the content information and store it in the user area based on a storage rule set in advance by the user. The content information stored in the user area based on the determination result can be browsed freely on the user terminal 20 by the user.

  In addition, the user terminal 20 previously receives the general distribution rule, global content information distribution rule, local content information distribution rule, field information distribution rule, control information distribution rule, and common area management from the content information server 4 or other user terminals. Get the rules and remember them. Furthermore, the user terminal 20 acquires field information and control information from the content information server 4 or other user terminals in advance, and stores them in the field information area and control information area of the common area, respectively.

  Then, the user terminal 20 selects global distribution content information to be distributed to other user terminals from all the content information stored in the common area based on the acquired global content information distribution rule. In addition, the user terminal 20 selects local distribution content information to be distributed to other user terminals from all the content information stored in the common area based on the local content distribution rule determined by the acquired field information. To do. Here, field information, which will be described in detail later, is information regarding the user terminal and neighboring user terminals existing in the vicinity of the user terminal, such as preference information and regional information. In addition, the user terminal 20 adjusts the ratio of the content information area, the field information area, and the control information area constituting the common area based on the acquired common area management rule.

  Although details will be described later, the control information is information defining control for various rules, and various distribution rules and common area management rules are reset by the control information.

  When the user terminal 20 confirms that another user terminal exists in the communicable area, the global distribution content information, the local distribution content information, the field information, and the control information are determined based on the overall distribution rule. Deliver to the other user terminal. The global distribution content information is distributed from the global content information sub-band based on the global content information distribution rule. The local distribution content information is distributed from the local content information sub-band based on the local content information distribution rule. Further, the field information is distributed from the field information band based on the field information distribution rule. Further, the control information is distributed from the control information band based on the control information distribution rule.

  Although the details will be described later, the general distribution rule defines allocation between bands when the user terminal 20 distributes information to other user terminals. That is, allocation of global content information subband, local content information subband, field information band, and control information band is defined.

  In this way, the user terminal acquires various content information, field information, and control information from the access point 3 and other user terminals. Then, the content information, field information, and control information stored in the common area are further distributed to other user terminals based on various distribution rules. By repeating this, in the distribution system 100, various types of information are exchanged between the user terminals.

[Content Information Server]
Next, the content information server 4 will be described in detail. The content information server 4 is connected to the content information DB 5, and distributes various content information stored in the content information DB 5 to the user terminal via the access point 3. FIG. 2 is a diagram schematically showing the data structure of the content information DB 5. As shown in FIG. 2, the content information DB 5 stores and manages content data and additional information using the content information ID as a key. Here, the content data is content main body information necessary for browsing the content information on the user terminal. The additional information is information associated with the content data, and details will be described later.

[User terminal]
Next, the user terminal will be described in detail. First, the internal configuration of the user terminal will be described in detail with reference to FIG. FIG. 3 shows the internal configuration of the user terminal 20 in the distribution system 100 of the present invention. Since the user terminal 21 has the same internal configuration as the user terminal 20, a description thereof will be omitted for the sake of convenience.

  As shown in FIG. 3, the user terminal 20 includes a storage area 201, a common area processing function 207, a common area management rule storage function 208, a display function 210, a wireless communication function 211, a distribution processing function 212, and a distribution rule storage function 213. The storage processing function 214 and the storage rule storage function 215 are possessed.

  The storage area 201 includes a user area 202 and a common area 203. The common area 203 further includes a content information area 204, a field information area 205, and a control information area 206. The distribution rule storage function 213 stores a global content information distribution rule 221, a local content information distribution rule 222, a field information distribution rule 223, a control information distribution rule 224, and an overall distribution rule 225.

  The common area 203 is an area for storing content information, field information, and control information received by the wireless communication function 211 described later from the access point 3 or other user terminals. The content information stored in the content information area 204 of the common area 203, the field information stored in the field information area 205, and the field information stored in the control information area 206 are stored in the communicable area by the distribution processing function 212 described later. Distributed to other user terminals. That is, in the present invention, the user terminal repeats “reception”, “store in common area”, and “distribution” for various types of information, so that various types of information are accumulated and propagated among a plurality of user terminals. Can be formed. In principle, the common area 203 is an area that the user is not aware of, and operation editing by the user is restricted. That is, it is assumed that the user does not perform operations such as copying and displaying various information stored in the common area 203. Thereby, the reliability of various information, especially content information, and the public property of a common area can be maintained.

  The user area 202 is an area for storing content information that matches the user's preference. Unlike the content information stored in the content information area 204, the content information stored in the user area 202 is edited by the user. That is, the user performs an operation such as copying or displaying the content information stored in the user area 202. Of the content information received by the wireless communication function 211 described later from the access point 3 or another user terminal, only the content information that matches the accumulation rule is duplicated in the content information area 204 and stored in the user area 202. . In principle, copying of content information from the user area 202 to the content information area 204 is not permitted. Thereby, it is possible to prevent content information collected based on the user's preference from leaking and leaking information that can be used to guess the personal preference. It is also possible to prevent the distribution of content information that has been illegally created or acquired.

  The display function 210 is a function for displaying content information stored in the user area 202 on the user terminal 20. Thereby, the user can freely display and browse the content information stored in the user area 202 on the user terminal 20.

  The wireless communication function 211 receives content information, field information, control information, various distribution rules and common area management rules from the access point 3 and other user terminals, and distributes distribution content information to other user terminals. It is a function to do. The wireless communication function 211 is a function for performing a neighborhood search that is a search for whether or not another user terminal exists within the communicable area of the user terminal 20.

  The distribution processing function 212 stores content information, field information, and control information received from the access point 3 and other user terminals in each area of the common area 203, and is stored in the content information area 204 of the common area 203. This is a function for selecting distribution content information to be distributed to other user terminals from all content information based on a global content information distribution rule or a local content information distribution rule. In addition, it is a function for delivering field information based on the field information distribution rule and control information based on the control information distribution rule to other user terminals.

  The distribution rule storage function 213 is a function of storing various distribution rules created by the content information server 4 and distributed by exchanging between the access point 3 and other user terminals in the same manner as the content information. There are five types of distribution rules: a global content information distribution rule 221, a local content information distribution rule 222, a field information distribution rule 223, a control information distribution rule 224, and an overall distribution rule. Details will be described later.

  The accumulation processing function 214 is a function for copying only the content information that matches the accumulation rule from the content information stored in the content information area 204 of the common area 203 and storing it in the user area 202.

  The accumulation rule storage function 215 is a function for storing an accumulation rule that is created consciously by the user or automatically by the user terminal 20 based on the user's preference. The accumulation rule defines conditions for duplicating the content information stored in the common area and storing it in the user area, and will be described in detail later.

  The common area processing function 207 is a function for controlling three areas of the content information area 204, the field information area 205, and the control information area 206 that constitute the common area 203 based on the common area management rule.

  The common area management rule storage function 208 is a function for storing common area management rules created by the content information server 4 and distributed by exchanging between the access point 3 and other user terminals in the same manner as the content information. . The common area management rule defines the control to be performed on the three areas constituting the common area 203, and details will be described later.

  Next, with reference to FIG. 4, the distribution of various types of information in the user terminal will be described in detail. FIG. 4 is a diagram conceptually showing the distribution of various types of information in the user terminal 20 of the distribution system 100. The user terminal 20 stores content information received from the access point 3 or another user terminal in the content information area of the common area, field information in the field information area, and control information in the control information area. The common area processing function 207 controls the capacity of the content information area, the field information area, and the control information area constituting the common area based on the common area management rule.

  Then, the accumulation processing function 214 of the user terminal 20 duplicates content that matches the conditions specified in the accumulation rule from the content information stored in the content information area, and stores it in the user area. Further, the distribution processing function 212 of the user terminal 20 selects the global distribution content information from the content information stored in the content information area based on the conditions defined in the global content information distribution rule. In addition, the distribution processing function 212 selects local distribution content information from the content information stored in the content information area based on conditions defined in the local content information distribution rule determined by the field information.

  Then, the distribution processing function 212 performs various types of information based on allocation between bands defined by the overall distribution rule, that is, allocation among global content information subband, local content information subband, field information band, and control information band. Is distributed to other user terminals existing within the communicable area of the user terminal. The global content information subband and the local content information subband are collectively referred to as a content information band.

  Here, the bandwidth will be described. The band is an exit when various information is distributed to other user terminals, and the means for controlling the band is priority control during distribution. Specifically, the bandwidth is not physically different, but the information flowing according to the priority order based on time and frequency is different. That is, the difference between the bands is that the type of information flowing is different, and the band in the user terminal plays a role of distinguishing various information and securing and adjusting the amount of information when distributing. The in-band control is governed by various distribution rules set for various bands. The overall distribution rules govern the control between bands.

  Specifically, global distribution content information is distributed from the global content information sub-band based on global content information distribution rules. The global content information sub-band secures the diversity of the distributed content information by not changing the distribution order depending on the content information content when distributing the content information. In other words, in the selection of distribution content, the diversity of distributed content information is ensured by not considering field information including personal preference information and regional information.

  In addition, local distribution content information is distributed from the local content information sub-band based on local content information distribution rules. In the local content information sub-band, the distribution order of distribution information is changed according to the contents of the content information stored in the field information and the content information area when distributing the content information. And locality).

  Also, field information is distributed from the field information band based on field information distribution rules. Furthermore, control information is distributed from the control information band based on the control information distribution rule.

  Thus, in the present invention, the communication band is divided into a plurality of bands according to the type of information flowing and the distribution rules.

[Various rules]
Next, various rules will be described.

(I) Common area management rule First, the common area management rule will be described in detail. The common area management rule defines control for three areas constituting the common area. For example, as a common area management rule, when content information satisfying a certain condition is stored in a predetermined area, a TTL (Time to live) value set as additional information of content information satisfies a predetermined condition. It is specified that the content information received from other user terminals is deleted according to the state of the free space, etc., if it is satisfied. The common area processing function 207 of the user terminal controls the content information area 204, the field information area 205, and the control information area 206 that constitute the common area 203 based on such rules.

  FIG. 5 shows a common area management rule list. The common area management rule list is composed of standards and processes as shown in the figure. The common area management rule is defined so that the common area processing function 207 of the user terminal performs a predetermined process according to a predetermined standard. That is, the content information server 4 creates a common area management rule by arbitrarily combining the criteria and processing as shown in FIG. 5, and the common area processing function 207 has a predetermined standard as the common area management rule. It can be specified that processing is performed.

  Here, an example of the common area management rule will be specifically described with reference to FIG. As shown in the drawing, as a common area management rule, the common area processing function 207 deletes the corresponding content information according to the criterion “content information having a size of 500 KB or more when the free area of the user area is equal to or less than a certain value”. Can be prescribed. Similarly, it can be defined that the process associated with the common area processing function 207 is performed according to the illustrated standard.

  Note that the content information server 4 can define that the common area processing function 207 performs arbitrary processing according to arbitrary criteria other than those described in FIG.

(Ii) Distribution rules Next, distribution rules will be described in detail. There are five types of distribution rules: general distribution rules, global content information distribution rules, local content information distribution rules, field information distribution rules, and control information distribution rules.

  First, the general distribution rule will be described. General distribution rules are such as what information is distributed in what order when various information extracted from the common area of user terminals is distributed to other user terminals, under what conditions, etc. Provisions are made regarding delivery. In addition, according to the priority order based on the frequency, time, etc., allocation between bands in which various information is passed is also defined.

  Next, content information distribution rules will be described. The content information distribution rule includes a global content information distribution rule and a local content information distribution rule.

  The global content information distribution rule stipulates conditions for selecting, from the content information stored in the content information area, global distribution content information for distribution to other user terminals from the global content information sub-band. . That is, various content information is distributed from the global content information sub-band according to regulations such as randomly distributing content information selected based on the global content information distribution rule.

  The local content information distribution rule is determined by field information, and local distribution content information for distribution to other user terminals from the local content information sub-band is determined from the content information stored in the content information area. Defines the conditions for selection. That is, from the local content information sub-band, content information in consideration of personal preference information and regional information that can be extracted by field information is distributed based on local content information distribution rules.

  The present invention distributes the global distribution content information or local distribution content information selected based on the content information distribution rule to other user terminals existing in the communicable area of the user terminal. It is characterized by. Therefore, the distribution processing function 212 of the user terminal performs PUSH type distribution based on the distribution rule without performing PULL type distribution. The PUSH type distribution is a method of distributing content information to other user terminals existing in the communicable area regardless of whether there is a request for content information from the other user terminals. On the other hand, the PULL type distribution is a method of distributing content information corresponding to the request only when there is a request for content information from another user terminal.

  FIG. 6 shows a content information distribution rule list. As shown in the figure, the distribution rule list is composed of standards, processes, and purposes. The distribution rule is defined such that the distribution processing function 212 of the user terminal performs a predetermined process according to a predetermined standard. That is, the content information server 4 creates a global content information distribution rule and a local content information distribution rule by arbitrarily combining the criteria and processing as shown in FIG. 6, and uses the distribution processing function according to the predetermined criteria as the distribution rule. It can be specified that 212 performs a predetermined process.

  Here, an example of the content information distribution rule will be specifically described with reference to FIG. As shown in the figure, the distribution processing function 212 randomly selects content information from all the content information stored in the content information area of the common area according to the criterion “random” as the content information distribution rule, and the distribution content information It can be specified that the message is distributed to other user terminals. According to this, all the content information stored in the content information area can be uniformly distributed to other user terminals without deviation. Similarly, the distribution processing function 212 can be defined to perform the associated processing according to the illustrated standard.

  Note that the content information server 4 can specify that the distribution processing function 212 performs an arbitrary process according to an arbitrary standard other than those described in FIG.

  Next, the field information distribution rule will be described. The field information distribution rule defines the distribution of field information. For example, it prescribes that field information should be preferentially distributed to other user terminals existing within the communicable area of the user terminal in a specific situation.

  Next, the control information distribution rule will be described. The control information distribution rule defines the distribution of control information. For example, the control information is preferentially distributed to other user terminals existing in the communicable area of the user terminal based on a specific command.

(Iii) Accumulation rule Next, the accumulation rule will be described in detail. The accumulation rule defines conditions for copying content information stored in the content information area of the common area and storing it in the user area. The accumulation rule may be created by consciously inputting a field in which the user is interested in advance, or automatically based on user attribute information acquired in advance by the user terminal. It is good also as creating by setting to. Since the storage processing function 214 of the user terminal copies and stores only the content information that matches the conditions stipulated in the storage rule from the common area to the user area, the user area 202 has content that matches the user's preference. Only information is stored.

  FIG. 7 shows a list of accumulation rules. As shown in the figure, the accumulation rule list is composed of standards and processes. The accumulation rule is defined such that the accumulation processing function 214 of the user terminal performs a predetermined process according to a predetermined standard. That is, the user or the user terminal 20 creates an accumulation rule by arbitrarily combining the criteria and processing as shown in FIG. 7, and the accumulation processing function 214 performs predetermined processing according to the predetermined criteria as the accumulation rule. Can be prescribed to do.

  Here, an example of the accumulation rule will be specifically described with reference to FIG. As a storage rule, the storage processing function 214 copies content information including xx as a file name from all content information stored in the content information area according to the criterion “include xx in file name”. It can be defined to be stored in the user area. An arbitrary character string can be defined in “XX”. Similarly, it can be specified that the accumulation processing function 214 performs processing associated with the reference shown in the figure.

  Note that the user or the user terminal can specify that the storage processing function 214 performs an arbitrary process according to an arbitrary standard other than those described in FIG.

[Various information]
Next, various information will be described.

(I) Content information First, content information will be described in detail. FIG. 8 conceptually shows the configuration of content information. As shown in FIG. 8, the content information is composed of additional information and content data. The content data is information of the content information main body that is necessary when browsing the content information on the user terminal. On the other hand, the additional information is information tagged in association with the content data, and may be automatically generated from a keyword in the content data, or manually set by the content information server 4 or the content information creator. Good. Specific examples of information set as additional information include a content information ID for identifying content data, keyword information representing content data, genre information of content data, and expiration date information of content data. In addition, data for guaranteeing the originality of content data, such as an electronic signature of the content information creator and a hash value for preventing falsification, may be set as additional information.

  The additional information is information that is automatically or manually set by the content information server 4 or the content information creator, and whether or not to be included in the content information is arbitrary. That is, as content information, as shown in FIG. 8, there are two types of content information, that is, content information composed of additional information and content data, and content information composed only of content data. Content information can be applied.

  As described above, the distribution processing function 212 of the user terminal, based on various distribution rules, sends global distribution content information, local distribution content information, field information, and control information to other users existing in the communicable area. Deliver to the terminal. Further, the accumulation processing function 214 of the user terminal duplicates the content information stored in the content information area based on the accumulation rule, and stores it in the user area. Further, the common area processing function 207 of the user terminal controls three areas constituting the common area based on the common area management rule. At this time, FIG. 9 shows information for determining whether or not the content information and the file match the rules of various distribution rules, accumulation rules, or common area management rules.

  As shown in the figure, content information and information for determining data included in the file (hereinafter referred to as “content information etc.”) are configured by conditions and specific examples. The conditions may be “when no additional information is included”, “when text data”, “when created in a standard format”, and “when additional information is included”.

  As shown in FIG. 9, when additional information is not included, specific examples of information for determining content information and the like include a file name, an extension, a size, and the like.

  In addition, when content information or the like is text data regardless of whether or not additional information is included, a specific example of information for determining content information or the like is a word included in the text data. For example, as a storage rule, according to the criterion “keyword search (keyword: fireworks)”, the storage processing function 214 selects only content information including “fireworks” as a keyword from all content information stored in the content information area. Suppose that it is prescribed to duplicate and store in the user area. In this case, the accumulation processing function 214 determines whether or not the keyword “fireworks” defined as the accumulation rule is included in the words included in the text data of the content information. When the accumulation processing function 214 determines that “fireworks” are present in the words included in the text data, the content processing function 214 copies the content information and stores it in the user area.

  In addition, when content information or the like is created in a standard format regardless of whether or not additional information is included, specific examples of information for discriminating content information and the like include the creator and editing time. Can be mentioned.

  In addition, when additional information is included, specific examples of information for determining content information and the like include creators included as additional information, genre information, target age, and the like.

  The distribution processing function 212, the storage processing function 214, and the common area processing function 207 perform processing based on the information for discriminating the content information as described above and various distribution rules, accumulation rules, and common area management rules. However, in principle, the distribution processing function 212, the accumulation processing function 214, and the common area processing function 207 determine whether or not the content information or the like matches the rules of the distribution rule, the accumulation rule, or the common area management rule. . Here, the term “match” is a broad concept that includes a complete match, a partial match, and a match in the magnitude relationship of numerical values. Note that the content information to be determined may be the whole content information or a part (one element) of the content information. Further, there may be a case where content information is divided and handled in advance.

(Ii) Control information Next, the control information will be described in detail. The control information is information for controlling various distribution rules and common area management rules of each user terminal. Note that the control information does not control the accumulation rule or the user area. Based on the received control information, the user terminal resets various distribution rules and common area management rules, or immediately executes a specific command as a result. In principle, the user is not aware of the control information, and the control information is not manipulated by the user.

  FIG. 10 shows a control information list. As shown in the figure, the control information list is composed of a control object, a control function, control contents, and effects. The control target represents a rule controlled by resetting based on control information. The control function represents a function that is controlled by resetting a rule to be controlled. The control content represents how to control the function of the rule to be controlled by the control information. The effect represents an effect obtained by resetting a rule to be controlled by the control information. That is, the control information includes information such that the user terminal controls a predetermined function of a rule to be controlled according to a predetermined control content. That is, the content information server 4 creates control information by arbitrarily combining the control target, control function, and control content as shown in FIG. 10 and distributes the control information to the user terminal for easy use. It is possible to reset such as changing various rules stored in the person terminal.

  Here, an example of the control information will be specifically described with reference to FIG. As control information, based on the state transition of the neighbor search for searching for another user terminal existing in the communicable area, the time for performing the neighbor search, and the standby time for receiving the content information from the other user terminal, It is possible to regulate that the user terminal resets the content information distribution rule so as to change the period. Thereby, effects, such as control of a distribution state, relief of congestion, and priority of emergency information, can be realized. Similarly, it is possible to specify that the user terminal resets the associated control target according to the illustrated control content.

  Note that the content information server 4 can specify that the control target associated with the user terminal is reset according to arbitrary control contents other than those described in FIG.

(Iii) Field Information Next, field information will be described in detail. The field information is user terminal and preference or local information regarding the neighboring user terminal existing in the vicinity of the user terminal. Specifically, as the field information, various types of information such as the type of car, the performance of the personal computer, the price of juice, the information provider, the position, and the temperature can be considered. The local content information distribution rule set in the local content information sub-band is created based on the field information. For example, preference information of the user terminal 20 and the neighboring user terminal 21 is recorded as field information, and the field information is distributed to other neighboring user terminals 22. The neighboring user terminal 22 reflects its own preference information for the received field information. Further, the neighboring user terminal 22 selects and distributes local distribution content information distributed in the local content information sub-band in consideration of field information reflecting user preference information. According to this, the content information close to the preference information of the nearby user is distributed to the nearby user terminal in the local content information sub-band.

  As described above, the field information may be not only user preference information but also regional information based on GPS (Global Positioning System) information where the user terminal exists. In this case, content information with high regionality is distributed to the neighboring user terminals in the local content information sub-band.

  Here, with reference to FIG. 12, a case where content information is distributed from the local content information sub-band to other user terminals existing in the communicable area based on the field information will be described in detail.

  FIG. 12 is a conceptual diagram for distributing content information based on field information. Each user terminal 23 to 26 holds field information indicating preference information of neighboring user terminals, and distributes the field information by distributing it from the field information band to other user terminals. The user terminal 23 distributes the held field information to the user terminal 24, and the user terminal 24 merges the received field information with the field information held by the own terminal to obtain new field information. Store in the information area. Further, the user terminal 24 performs distribution from the field information band while merging the field information held by the user terminal 25 with the user terminal 25 and the user terminal 25 with the user terminal 26. As a result, the field information stored in the field information area by the user terminal 26 is a result in which the preference information of the neighboring user terminals 23 to 25 and the own terminal 26 is reflected. Further, each of the user terminals 23 to 25 has and stores field information in which preference information of neighboring user terminals is reflected.

  And each user terminal 23 thru | or 26 distributes the content information selected in consideration of the field information reflecting the preference information of the neighboring user terminal from the local content information subband to other neighboring user terminals. . That is, based on the field information, the user terminal can distribute content information that matches the preference of the neighboring user terminal from the local content information subband.

  As described above, the field information band and the local content information sub-band are provided, and the field information and the content information corresponding to each of the field information band and the local content information sub-band are distributed separately from the global content information sub-band for distributing content information in various ways With the content information sub-band, it is possible to distribute content information that matches the preferences of neighboring user terminals. It is also possible to give regionality to the distribution of content information.

  The field information is not only merged with the field information reflecting the user's preference information, but is also merged and reconfigured with dummy information for higher anonymity and sent to other user terminals. It is good also as delivering.

[Delivery process]
Next, distribution processing between user terminals executed by the distribution system 100 will be described. FIG. 12 shows receiving field information of neighboring user terminals, merging field information held by the own terminal with the received field information, and distributing the merged field information to other neighboring user terminals. FIG. FIG. 13 is a flowchart of the distribution process.

  Note that, as a general distribution rule, the priority of bands is set in the order of control information band, global content information subband, field information band, and local content information subband, and the distribution processing function 212 of the user terminal 20 It is defined that information corresponding to each band is distributed at a ratio of 1: 1: 1: 1. The user terminal 20 acquires and stores various distribution rules and common area management rules from the access point 3 or other user terminals.

  When the access point 3 confirms that the user terminal 20 used by the user exists in the communicable area, the access point 3 distributes content information to the user terminal 20 by wireless communication. The user terminal 20 stores the received content information in the content information area of the common area.

  The user terminal 20 determines whether or not the content information received from the access point 3 matches a condition defined in a previously created accumulation rule. The user terminal 20 copies and stores the content information from the content information area of the common area to the user area only when the content information matches the conditions defined in the accumulation rule.

  The user can perform operations such as display, storage, and deletion on the user terminal 20 with respect to the content information stored in the user area. However, even if the content information stored in the user area is deleted by a user operation, the content information stored in the content information area is stored as it is. This is because the content information stored in the content information area is not conscious of the user and cannot be operated by the user.

  The user terminal 20 performs a neighborhood search, which is a search for whether there is another user terminal within the communicable area (step S1). When there is no other user terminal in the vicinity (step S2; NO), the user terminal 20 periodically performs a neighbor search until it exists. On the other hand, when another user terminal 21 exists in the user communicable area (step S2: YES), the user terminal 20 first distributes the control information based on the pre-stored general distribution rule. In accordance with the rules, the control information extracted from the control information area is distributed to the user terminal 21 through the control information band (step S3). The user terminal 21 receives the control information, and stores the control information in the control information area of the common area based on the control information distribution rule (step S4). Then, the user terminal 21 performs resetting such as change of settings regarding various distribution rules and common area management rules based on the stored control information (step S5).

  Next, after distributing the control information, the user terminal 20 uses the content information selected from the content information area according to the global content information distribution rule based on the overall distribution rule, through the global content information sub-band. To the user terminal 21 (step S6). The user terminal 21 stores the received content information in the content information area (step S7). Then, the user terminal 21 determines whether or not the content information matches a condition defined in a storage rule created in advance (Step S8). If they match (step S8; YES), the accumulation processing function 214 of the user terminal 21 duplicates and stores the content information stored in the content information area in the user area (step S9). If they do not match (step S8; NO), the accumulation processing function 214 does nothing and ends the processing.

  Next, after distributing the global content information, the user terminal 20 passes the field information extracted from the field information area according to the field information distribution rule based on the entire distribution rule, through the field information band, to the user terminal. 21 (Step S10). The user terminal 21 receives the field information (step S11) and merges the received field information with the field information held by the own terminal. Then, the user terminal 21 stores the reconstructed field information in the field information area (step S12).

  Next, the distribution processing function 212 of the user terminal 20 selects content information to be distributed from the local content information sub-band from the content information area based on the local content information distribution rule and field information (step S13). The distribution processing function 212 then extracts the content information extracted in consideration of the field information from the content information area according to the local content information distribution rule based on the entire distribution rule, through the local content information sub-band, and the user terminal. 21 (Step S14).

  The user terminal 21 receives the content information and stores it in the content information area (step S15). Then, the user terminal 21 determines whether or not the content information matches a condition defined in a storage rule created in advance (Step S16). If they match (step S16; YES), the accumulation processing function 214 of the user terminal 21 duplicates and stores the content information stored in the content information area in the user area (step S17). Thereby, the user terminal 21 completes the distribution process. On the other hand, if they do not match (step S16; NO), the accumulation processing function 214 does nothing and the distribution processing is completed.

  In step S8 or S16, when it is determined that the content information does not match the conditions defined in the accumulation rule and the content information area is not copied to the user area, the user uses the user terminal 21 to It is impossible to perform operations such as display, storage, and deletion of content information. This is because the content information stored in the content information area of the common area is not conscious of the user and cannot be operated by the user.

  According to the present invention, it is possible to distribute content information according to preference information and regional information preferentially by dividing a communication band into a plurality of bands. For example, by providing a global content information sub-band and a local content information sub-band within a field information band that distributes field information that is preference information and regional information, and a content information band that distributes content information, It is possible to control the content information of a specific type to be easily delivered to the user terminal group in the push type.

  By using this means, it is possible to distribute content information according to regional characteristics and content information according to information indicating the content type for which local preference information or presence is required. By sharing such a local content information sub-band with a global content information sub-band that is shared without being affected by field information, the content information can be stored in another place without stagnation in one place. Can be shared with users who want to.

  In the present invention, a control information band is provided in a conventional PUSH type distribution system, and various rule settings and execution instructions are distributed to realize means for controlling the distribution status of content information as the entire distribution system. it can.

  Further, in the present invention, by using field information, when sharing information about preferences and regions, only the preference information of the own terminal is not distributed to other user terminals, but the preferences that have been propagated so far By including the preference information and dummy information of the own terminal in the field information that is the information group, the information of individual users who use each user terminal is not specified. That is, it is possible to ensure the anonymity of personal information and improve the security of the distribution system.

  In the present embodiment, the additional information is included in the content information. However, the present invention is not limited to this, and may exist as a separate file associated with the content information.

  In the present embodiment, the access point 3 is connected to the content information server 4 through the network 2, but the present invention is not limited to this, and content information can be transmitted and received by wireless communication. Various terminals can be applied. Specifically, the access point 3 is not limited to a fixed device, and may be a customized user terminal described in the present embodiment. The customization may be a user terminal that also has a function for setting content information to be distributed to a common area. According to this, when the person carrying the customized user terminal moves, the communicable area can be moved to an arbitrary place such as a place where people are crowded at that time.

  In the distribution system 100 of the present embodiment, the content information server 4 stores and manages the content information. However, the present invention is not limited to this, and the access point 3 holds the content information in advance. It is good to be. That is, the content information server 4 in the distribution system 100 is not an essential component, and the present invention can be applied to a distribution system in which the content information server 4 does not exist. In this case, various distribution rules and common area management rules are managed and distributed by the content information creator or the like. In addition, since it is necessary for the content information creator to manage the control information, the distribution system 100 may be separately provided with a device that operates the control information as a terminal for the administrator.

  Further, in the present embodiment, the information for determining the content information and the like describes the conditions and specific examples as shown in FIG. 7, but the present invention is not limited to this, and content information and The content information may be determined based on a physical band difference, a frequency difference, a packet header difference, or the like at the time of reception or distribution.

  In the present embodiment, the content information distribution rule describes the criteria and processing as shown in FIG. 6 and is used by the user terminal on the content information distribution side when selecting the distribution content information. The invention is not limited to this, and the user terminal on the side that receives the content information may use it when receiving the distribution content information. Specifically, as the content information distribution rule, the distribution processing function 212 of the user terminal is based on criteria such as the size of content information received from other user terminals and access points, communication time, and specific user terminal. It can be defined that the communication is disconnected. According to this, when large-sized content information is distributed many times as malicious harassment, the user terminal on the side receiving the content information disconnects communication based on the content information distribution rule, Such harassment can be avoided.

  Further, in the present embodiment, the content information distributed from the global content information sub-band is a variety of information not considering field information, and the content information distributed from the local content information sub-band is a local information considering field information. The information is intended to be transmitted uniformly. However, the present invention is not limited to this. If the content information distributed from the global content information sub-band is uniform, the content information distributed from the local content information sub-band is diversified. It is also possible to take

  With the distribution system of the present invention, it is possible to manage the distribution status of content using control information and field information and perform distribution with anonymity secured.

It is a figure which shows schematic structure of the distribution system in this invention. It is a figure which shows typically the data structure of content information DB. It is a functional block diagram of the user terminal contained in the distribution system shown in FIG. It is a conceptual diagram of the various information distribution in a user terminal. It is a common area management rule list. It is a content information distribution rule list. It is an accumulation rule table. It is a figure which shows the structure of content information typically. It is a table | surface which shows the information for discriminating content information etc. It is a control information table. It is a conceptual diagram which distributes content information based on field information. It is a conceptual diagram of content information distribution. It is a flowchart of the delivery process in this invention.

Explanation of symbols

2 ... Network 3 ... Access point 4 ... Content information server 5 ... Content information DB
20 ... User terminal 21 ... User terminal 100 ... Distribution system

Claims (9)

A user terminal having a storage area for storing information and capable of transmitting and receiving data to and from the server and other user terminals via an access point,
The storage area includes a common area for storing information for distribution to other user terminals,
The common area stores a content information area for storing content information to be distributed to other user terminals, and field information that is preference or / and regional information regarding the user terminals and other user terminals. A field information area to be
The user terminal is
A global content information distribution rule defining conditions for selecting distribution content information to be distributed to other user terminals from the content information stored in the content information area, the server or other user terminals Content information distribution rule acquisition means acquired from:
Field information acquisition means for acquiring field information from other user terminals;
Field information area storage means for storing the field information acquired from another user terminal as new field information by merging with already held field information, and storing it in the field information area of the common area;
Field information reflecting means for storing and reflecting in the field information area, as field information, information relating to a request for content information input by a user using the user terminal;
Field information distribution means for distributing field information stored in the field information area to other user terminals;
Content information acquisition means for acquiring content information from the server or another user terminal;
Content information area storage means for storing the acquired content information in the content information area;
First selection means for selecting the distribution content information from all the content information stored in the content information area based on conditions defined in the global content information distribution rule;
Global content information distribution means for distributing the distribution content information selected by the first selection means to another user terminal;
Local content distribution rule creating means for creating a local content information distribution rule from the field information stored in the field information area;
Second selection means for selecting the distribution content information from all the content information stored in the content information area based on conditions defined in the local content information distribution rule;
A user terminal comprising: local content information distribution means for distributing the distribution content information selected by the second selection means to another user terminal. The user terminal has a content information band used when distributing the content information to another user terminal, and a field information band used when distributing the field information to another user terminal. And
The content information band includes a global content information sub-band used when distributing the content information selected by the first selection unit and a local content used when distributing the content information selected by the second selection unit. Content information sub-band, and
The global content information distribution rule specifies content information distributed from the global content information sub-band, and the local content information distribution rule specifies content information distributed from the local content information sub-band,
The user terminal is
Field information distribution rule acquisition means for acquiring from the server or other user terminal a field information distribution rule that defines the distribution of the field information;
The global content information distribution unit distributes the content information selected by the first selection unit from the global content information sub-band based on the global content information distribution rule,
The local content information distribution means distributes the content information selected by the second selection information from the local content information sub-band based on the local content information distribution rule,
The user terminal according to claim 1, wherein the field information distribution unit distributes the field information reflected by the reflection unit from the field information band based on the field information distribution rule. An overall distribution rule acquisition means for acquiring, from the server or another user terminal, an overall distribution rule that defines allocation between bands when distributing information to other user terminals;
An adjustment unit that adjusts the global content information distribution unit, the local content information distribution unit, and the field information distribution unit to distribute each information based on the assignment defined in the overall distribution rule; The user terminal according to claim 2, further comprising: Content information and field information deletion processing, content information and field information storage processing, content information and field information division processing, content information and field information change for content information region and field information region constituting the common region A common area management rule receiving means for receiving processing or a common area management rule defining adjustment processing of increase / decrease of the content information area and the field information area from the server via another user terminal or the access point;
4. The apparatus according to claim 1, further comprising: a common area control unit that performs processing of a content information area and a field information area constituting the common area based on the common area management rule. The listed user terminal. Control information receiving means for receiving control information defining the change of the common area management rule from the server or another user terminal;
The user terminal according to claim 4, further comprising: a common area control rule resetting unit that changes and resets the common area management rule based on the control information. The user terminal is
From the server or other user terminal, control information that defines a change in rule for any one or more of the global content information distribution rule, the local content information distribution rule, the field information distribution rule, and the overall distribution rule Control information receiving means for receiving;
A rule resetting unit that changes and resets the rules of the global content information distribution rule, the local content information distribution rule, the field information distribution rule, or the entire distribution rule based on the control information, The user terminal according to claim 3 or 4. The user terminal further possesses a control information band used when distributing the control information to other user terminals,
The user terminal is
An acquisition means for acquiring a control information distribution rule defining distribution of the control information from the server or another user terminal;
The user according to claim 5 or 6, further comprising control information distribution means for distributing the control information from the control information band to another user terminal based on the control information distribution rule. Terminal.   The adjusting unit adjusts the global content information distributing unit, the local content information distributing unit, the field information distributing unit, and the control information distributing unit to distribute each information based on the assignment defined in the general distribution rule. The user terminal according to claim 7, wherein: A program executed by a computer having a storage area for storing information and capable of transmitting and receiving data to and from a server and another computer via an access point,
The storage area includes a common area for storing information for distribution to other computers,
The common area includes a content information area for storing content information to be distributed to other computers, a field information area for storing field information that is preference or / and area information regarding the computer and other computers, Including
The program is
Content that acquires global content information distribution rules defining conditions for selecting distribution content information to be distributed to other computers from the content information stored in the content information area from the server or other computers Information distribution rule acquisition means,
Field information acquisition means for acquiring field information from another computer;
Field information area storage means for storing the field information acquired from another user terminal as new field information by merging with the already held field information, and storing it in the field information area of the common area,
Field information reflecting means for storing and reflecting in the field information area, as field information, information relating to a request for content information input by a user using the computer;
Field information distribution means for distributing the field information stored in the field information area to another computer;
Content information acquisition means for acquiring content information from the server or another computer;
Content information area storage means for storing the acquired content information in the content information area;
First selection means for selecting the distribution content information from all the content information stored in the content information area based on the conditions defined in the global content information distribution rule;
Global content information distribution means for distributing the distribution content information selected by the first selection means to another computer;
Local content distribution rule creating means for creating a local content information distribution rule from the field information stored in the field information area;
Second selection means for selecting the distribution content information from all the content information stored in the content information area based on conditions defined in the local content information distribution rule;
A program that causes the computer to function as local content information distribution means for distributing the distribution content information selected by the second selection means to another computer.

Images