Information providing system, providing information updating method, information terminal device, information terminal device control method, information updating server, information updating server control method and information memorizing medium

1. An information providing system, comprising:

an information management server;

an object server;

a first information terminal device, and

a second information terminal device, wherein:

the information management server includes:

a space database storing space information of a virtual three-dimensional space; and

partial provided information transmitting means for transmitting a part of provided information to the first information terminal device, the part of the provided information including the space information; and

the first information terminal device includes:

partial provided information receiving means for receiving the part of the provided information transmitted by the partial provided information transmitting means;

information sharing means for sharing the part of the provided information with the second information terminal device;

user information acquiring means for acquiring user information of the second information terminal device, wherein the user information comprises information about a user's age or sex; and

information outputting means for outputting the user information acquired by the user information acquiring means and part specifying information for specifying the part of the provided information,

wherein the information management server updates the space information stored in the space database based on a combination of the part specifying information and the user information; and

wherein the object server provides the part of provided information based on the part specifying information and the user information, determining whether the space information stored in the space database needs to be updated,

wherein, if the object server determines that the user information included in the combination includes a number of users that is determined to match a predetermined number, then the information management server updates the space information stored in the space database related to the part specifying information so as to dispose an advertisement at a position specified by the part specifying information in the three-dimensional space and sends the updated part specifying information to the first information terminal device which sends the updated part specifying information to the second information terminal device,

wherein the object server and the first and second user terminal devices are separate and distinct units in communication with one another via a network, and

wherein said object server is a dedicated server to manage objects, the objects including said advertisement.

2. An information providing system according to claim 1 , wherein the information sharing means transmits the part of the provided information to the second information terminal device.

3. An information providing system according to claim 2 , further comprising a plurality of the information terminal devices, the plurality of the information terminal devices constituting a P2P network.

4. An information providing system according to claim 1 , further comprising an information updating server for receiving the user information and the part specifying information outputted from the information outputting means, and requesting updating of the provided information according to contents of the user information and the part specifying information.

5. An information providing system according to claim 1 , wherein the user information includes a user attribute.

6. The information providing system according to claim 1 , wherein the object server downloads said user information from said first terminal device.

7. The information providing system according to claim 6 , wherein the object server updates the information management server with respect to a location of the advertisement position.

8. The information providing system according to claim 1 , wherein a third information terminal is notified of the updated space information by the first information terminal, and downloads the updated space information from the first information terminal.

9. A provided information updating method for an information providing system which includes an information management server for managing provided information, an object server to manage objects, a first information terminal device, and a second information terminal device, comprising:

a partial provided information transmitting step of transmitting, by the information management server, a part of the provided information to the first information terminal device, the part of the provided information including space information of a virtual three-dimensional space stored in a space database of the information management server;

a partial provided information receiving step of receiving, by the first information terminal device, the part of the provided information from the information management server;

an information sharing step of sharing, by the first information terminal device, the part of the provided information with the second information terminal device;

a user information acquiring step of acquiring, by the first information terminal device, user information of the second information terminal device, wherein the user information comprises information about a user's age or sex;

an information outputting step of outputting, by the first information terminal device, the user information and part specifying information for specifying the part of the provided information; and

an information updating step of updating, by the information management server, the provided information according to contents of the part specifying information and the user information outputted from the first information terminal device,

wherein the information management server updates the space information stored in the space database based on a combination of the part specifying information and the user information,

wherein the object server provides the part of provided information based on the part specifying information and the user information, determining whether the space information stored in the space database needs to be updated,

wherein, if the object server determines that the user information includes in the combination includes a number of users that is determined to match a predetermined number, then the information management server updates the space information stored in the space database related to the part specifying information so as to dispose an advertisement at a position specified by the part specifying information in the three-dimensional space and sends the updated part specifying information to the first information terminal device which sends the updated part specifying information to the second information terminal device,

wherein the object server and the first and second information terminal devices are separate and distinct units in communication with one another via a network, and

wherein said object server is a dedicated server to manage objects, the objects including said advertisement.

10. A provided information updating method for an information providing system which includes an information management server for managing provided information, an object server for managing objects, a first information terminal device, and a second information terminal device, comprising:

transmitting, by the information management server, a part of the provided information to the first information terminal device, the part of the provided information including space information of a virtual three-dimensional space stored in a space database of the information management server;

receiving, by the first information terminal device, the part of the provided information from the information management server;

sharing, by the first information terminal device, the part of the provided information with the second information terminal device;

acquiring, by the first information terminal device, user information of the second information terminal device, wherein the user information comprises information about a user's age or sex;

outputting, by the first information terminal device, the user information and part specifying information for specifying the part of the provided information; and

updating, by the information management server, the provided information according to contents of the part specifying information and the user information outputted from the first information terminal device,

wherein the information management server updates the space information stored in the space database based on a combination of the part specifying information and the user information,

wherein the object server provides the part of provided information based on the part specifying information and the user information, determining whether the space information stored in the space database needs to be updated,

wherein, if the object server determines that the user information included in the combination includes a number of users that is determined to match a predetermined number, then the information management server updates the space information stored in the space database related to the part specifying information so as to dispose an advertisement at a position specified by the part specifying information in the three-dimensional space and sends the updated part specifying information to the first information terminal device which sends the updated part specifying information to the second information terminal device,

wherein the object server and the first and second user terminal devices are separate and distinct units in communication with one another via a network, and

wherein said object server is a dedicated server to manage objects, the objects including said advertisement.