KR100733742B1 - Portable information processing terminal and communication system of the terminal - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable information processing terminal and a communication system of the terminal. The present invention relates to the exchange of data including multimedia contents between information processing terminals located remotely.

In a portable information processing terminal including a processor and a storage unit, the portable information processing terminal of the present invention receives a query request signal, which is data or meta information about the data, from outside and receives the data or query from the outside. And a slave module for outputting the data, and a data request signal to the outside by a user's operation, and when a data or query list corresponding to the output data request signal is received, stores the data in a preset shared space of the storage unit or user. And communication software including a master module for outputting a signal for display to a mobile station. By storing the software for P2P communication with other terminals in the storage unit of the portable information processing terminal as described above, it is possible to carry the information processing terminal to easily and easily exchange data of other information processing terminals anytime and anywhere.

Description

PORTABLE INFORMATION PROCESSING TERMINAL AND COMMUNICATION SYSTEM THEREOF

1 is a schematic diagram of a communication system of a portable information processing terminal according to an embodiment of the present invention;

2 is a block diagram illustrating a configuration of a portable information processing terminal according to an embodiment of the present invention.

3 is a view for explaining a storage unit of a portable information processing terminal according to an embodiment of the present invention;

4 is a view for explaining a storage unit shown in FIG.

5 is a diagram for describing communication software of a portable information processing terminal according to an embodiment of the present invention.

6 illustrates a server of a portable information processing terminal communication system according to an embodiment of the present invention.

7 is a signal flow diagram illustrating a communication process of a portable information processing terminal according to an embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable information processing terminal and a communication system of the terminal. The present invention relates to the exchange of data including multimedia contents between information processing terminals located remotely.

Currently, peer to peer (P2P) method is used as a data sharing method using a network. In the P2P method, the storage and management burden of contents is distributed among slave terminals, which can result in the efficiency of storage and management burden for the system, and user traffic is not concentrated on the central server. Since distributed, line efficiency can be increased.

Meanwhile, portable information processing terminals such as mobile phones, MP3 players, and mobile storage devices have various functions such as mobile communication, music listening, and high capacity data transmission. An advantage of such a portable information processing terminal is that it is easy to carry and can use a service provided by the portable information processing terminal anytime and anywhere.

The portable information processing terminal as described above executes software that enables data communication after connecting data such as a multimedia file to a device in which the multimedia file is stored, that is, a personal computer (PC) and the portable information communication terminal with a data communication cable. The multimedia file existing in the personal computer is transmitted to the information processing terminal.

However, the conventional portable information processing terminal as described above has to be directly connected to the host to download a multimedia file or a document file such as MP3, and executes the software, that is, a P2P program to enable data communication. There was a cumbersome problem to choose from. Furthermore, by first downloading a specific file to be downloaded to a portable terminal to a computer, there is a problem that it takes not only troublesome procedure but also takes a lot of time. In other words, in the conventional P2P program, the main purpose of the sharing of the host is to transmit the desired data from the shared folder of the host to the information processing terminal by the user.

Accordingly, the present inventors have studied a communication system that enables direct exchange of data including content between a plurality of information processing terminals located at remote locations.

The present invention has been invented by the above research results, and an object thereof is to provide an information communication terminal capable of exchanging various stored data by mutual communication between a plurality of information communication terminals located at remote locations.

Another object of the present invention is to provide a communication system for communicating between the information communication terminals.

A portable information processing terminal of the present invention for achieving the above object is a portable information processing terminal comprising a processor and a storage unit, wherein the storage unit inputs a query request signal that is data or meta information about the data from the outside. A slave module that receives the data or the query and outputs the data or query to the outside, and outputs a data request signal to the outside by a user's operation, and receives the data or query list corresponding to the output data request signal in advance in the storage unit. Communication software including a master module for outputting a signal for storing in the set shared space or display to the user is stored. By storing the software for P2P communication with other terminals in the storage unit of the portable information processing terminal as described above, it is possible to carry the information processing terminal to easily and easily exchange data of other information processing terminals anytime and anywhere.

Further, in the portable information processing terminal of the present invention, the storage unit further stores unique identification information of the information processing terminal, and each slave module and the master module request an authentication to the outside using the unique identification information. Only when authentication is allowed, the data or query request signal may be received from the outside, or the data or query list request signal may be output to the outside. The communication software, i.e., the slave module and the master module, performs authentication to the outside by using the unique identification information of the information processing terminal, so that only the information processing terminal which is authorized to communicate is made.

In the portable information processing terminal of the present invention, the communication software further comprises a viewer module for displaying the data stored in the shared area or the query list received from the outside to the user.

In addition, in the portable information processing terminal of the present invention, the storage unit stores the firmware driving logic of the information processing terminal, and the processor stores the storage means for storing a routine for calling the firmware driving logic of the low government. And a processing unit for executing the firmware driving logic stored in the storage unit by using the routine of the storage means.

As described above, only the routine for calling the firmware logic is stored in the storage means of the processor, and the firmware logic is stored in the flash type storage unit so that the processing unit of the processor drives the firmware logic using the routine. The part about masked firmware updates is extremely easy to achieve. In particular, it is possible to reduce the size of the overall controller by implementing the storage means in a very small ROM to store only the routine.

In the portable information processing terminal of the present invention, the storage unit may include a first logical area in which writing and deletion is restricted by an arbitrary user, and the firmware driving logic is stored in the first logical area.

In addition, in the portable information processing terminal of the present invention, the storage unit may further include a second logical area that is allowed to be accessed by an arbitrary user, and the shared space is present in the second logical area.

Further, in the portable information processing terminal of the present invention, the first logical area includes a hidden area in which access is restricted by an arbitrary user and only access is allowed to an authorized user, and the firmware driving logic is the hidden area. It is characterized in that stored in.

In the portable information processing terminal of the present invention, the hidden area is characterized in that the information processing terminal information generated during the manufacture of the information processing terminal or the unique identification information of the information processing terminal is further stored.

In the portable information processing terminal of the present invention, the communication software is stored in the hidden area.

In addition, the first logical area in the portable information processing terminal of the present invention is characterized in that it further comprises an executable area that is allowed only to view and read by any user.

In addition, the portable information processing terminal of the present invention further comprises a connection unit for connecting to an external host device, wherein the communication software is characterized in that it is executed by a host device connected via the connection unit.

In the portable information processing terminal of the present invention, the executable area may further include driving command information for executing contents or a program in the storage unit or the host by the host.

In the portable information processing terminal of the present invention, the executable area is further characterized in that the content or program executed by the host is further stored.

The portable information processing terminal of the present invention as described above may have an executable area in the first logical area. The executable area is an area that is recognized by a normal CD-ROM (RW), and is set so that the OS of the host is recognized as a virtual device. Therefore, when the information processing terminal is connected to the host by including the autorun (Autorun.exe) in the executable region and by including the driving command information, the setting position of the storage unit or the host by the autorun. The program or content stored in the can be executed. In this case, executable content or a program may be stored in the executable area itself.

In the portable information processing terminal of the present invention, the second logical area stores the same data as at least one program or content stored in the first logical area, and the data is copied from the first logical area. .

In case a program or content of a second logical area freely accessible by the user is deleted inadvertently deleted by the user, the same program or content is stored in the first logical area for backup, and the program or content of the second logical area is stored. When deleted, data of the first logical area is copied and copied to the second logical area.

Further, in the portable information processing terminal of the present invention, the driving command information includes an autorun executed automatically by the host when the information processing terminal is connected to the host device through a connection portion, and the communication software is driven by the autorun. It is characterized by.

On the other hand, as a communication system between the portable information processing terminals as described above, a plurality of information processing terminals and a plurality of information processing terminals receive a data including content or a query which is meta information of the data and receive the information for each information processing terminal. Cataloging and storing, receiving a data or query search request signal from a first information processing terminal among the plurality of information processing terminals, and transmitting the data list or query list to the first information processing terminal, and the data list or query list. A server for receiving data or query selection signals received in response to transmission of the first information processing terminal and transmitting connection information of a second information processing terminal having the selected data or query to the first information processing terminal, The first information processing terminal received from the server Second connection information to the second information processing terminal using the connection information of the processing device includes a feature to download the data corresponding to the data or the queries.

The communication system of the portable information processing terminal of the present invention includes a separate server for P2P communication, and the server has a list of various data or a query list of data stored in a shared space of each information processing terminal. When the data search signal is received from the terminal, only the data list or query list is transmitted so that the corresponding terminal user can select data through the list.

Further, in the communication system of the portable information processing terminal of the present invention, the server includes a first authentication unit for determining connection authentication of each information processing terminal, and a first authentication database in which identification information of each information processing terminal is stored. The information processing terminal requests authentication by transmitting identification information stored in a storage unit to a server, and the first authentication unit of the server receives the identification information to search and match the first authentication database to determine whether to authenticate. It is characterized by.

In addition, in the communication system of the portable information processing terminal of the present invention, the server further includes a second authentication unit for determining connection authentication between the information processing terminals, and a second authentication database in which authentication information between each information processing terminal is stored. And receiving a data selection signal corresponding to the data or the query of the second information processing terminal from the first information processing terminal that is permitted to access through the first authentication unit. If the search is matched and the authorization of the first information processing terminal to the second information processing terminal is allowed, the connection information of the second information processing terminal is transmitted to the first information processing terminal. If the authentication is not permitted, the first information is transmitted. And outputting a disconnection message to the processing terminal.

In the communication system of the portable information processing terminal of the present invention, each of the information processing terminals is connected to a host, and is communicated with a server and other information processing terminals through the host.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce the present invention.

1 is a schematic diagram of a communication system of a portable information processing terminal according to an embodiment of the present invention.

The communication system of the portable information processing terminal according to the present embodiment includes a server 100, a plurality of information processing terminals, that is, MP3 players 301 and 401, mobile storage devices 302 and 402, mobile phones 500 and 600, and respective information processing terminals. And a network 200 in which the main communication and the server communicate. The MP3 players 301 and 401 and the mobile storage devices 302 and 402 communicate with the server 100 through the host terminals 300 and 400.

In the present embodiment, an MP3 player, a removable storage device, and a mobile phone are described as an example of the portable information processing terminal. However, the present invention is not limited thereto. .

Common components associated with the present invention of such a portable information processing terminal are shown in FIG.

2 is a block diagram showing a simplified configuration of a portable information processing terminal according to an embodiment of the present invention.

Common components of the portable information processing terminal, that is, the MP3 player, the mobile storage device, and the mobile phone of the present embodiment include a processor 10, a storage unit 20, an operation unit 30 for outputting a signal according to a user's operation, And an external interface 40 for communicating with or connecting to the outside. The processor 10 includes a processing unit 11 and a ROM 12.

In the present embodiment, the ROM 12 is described as an example of the storage means provided in the processor 10. However, the present invention is not limited thereto, and various implementations such as SRAM, Flash type, and the like may be replaced. The number of arrangements can also be implemented in various ways.

The storage unit 20 stores communication software 51 for communicating with other information processing terminals, which will be described in detail with reference to FIG. 5.

The communication software 51 includes a master module 51a, a slave module 51b, and a viewer module 51c. The master module 51a receives the data search or selection data request signal through the manipulation unit 30 and outputs the data list or data request signal to the outside. The slave module 51b receives a query value or a data request signal of data stored in a preset shared space and outputs it to the outside. The viewer module 51c transfers the data to the outside and processes the acquisition of the corresponding data list or data. The viewer module 51 provides an interface (UI; User Interface) to allow a user to use P2P communication, and is similar to the explorer (Explorer.exe) that runs on a terminal using an ordinary Microsoft Windows series as an OS. It works.

The master module 51a of the communication software 51 may set a shared space of the storage unit 20 according to a user's manipulation. In this case, the function provided to the user may be able to specify the size of the shared space and the location of the shared space. In the case where the information processing terminal is an MP3 player or a portable storage device, the shared space may be set in the storage unit 20 or the host, that is, the hard disk of the computer. Detailed description of the technical implementation thereof is already well known and used, so the detailed description is omitted.

Detailed operations of each of the modules 51a to 51c constituting the communication software 51 will be described below.

The storage unit 20 has a first logical area 21 and a second logical area 22 that are logically divided as shown in FIG. 3. The first logical area 21 is an area in which writing and deletion is restricted by an arbitrary user, and the second logical area 22 is an area in which any user can freely read, write, view and delete. The above-mentioned area separation is set at the time of manufacture, and the first logical area 21 is allowed to write and delete only to an authorized user who uses a separate tool provided by the manufacturer.

The first logical area 21 is further divided into a hidden area 21a and an executable area 21b. The hidden area 21a has a file structure that is not recognized by a terminal using a Microsoft Windows series OS, and thus is read only by an authorized user using a separate tool (API; Application Program Interface) provided by the manufacturer. It is possible to write, view, delete, and any user can not access, such as read, write, view, delete. Therefore, it is not displayed in the explorer (explorer.exe) mounted in the Microsoft company's window, and thus the access itself cannot be made by any user.

The firmware logic 52 of the information communication terminal of this embodiment is recorded in the hidden area 21a. Therefore, for updating, the firmware logic 52 recorded in the hidden area 21a may be updated by separate system software provided by a manufacturer so that the hidden area 21a can be accessed among the functions of the API. . In addition, the hidden area 21a includes an ESN (Electronic Serial Number; 53), which is device identification information, together with a VID (Vendor ID) and PID (Product ID) (not shown) which are basic information about the information processing terminal. System data is recorded. In addition, when firmware logic is recorded in the hidden area 21a, a routine for calling firmware logic in the ROM 12 of the processor 10 and the hidden area where firmware logic is recorded ( It is preferable to include the addressing information of 21a). Accordingly, the firmware logic 52 recorded in the storage unit 20 is called by the routine, and the processing unit 11 of the processor 10 can access the firmware logic by loading the loading information. To execute.

The executable area 21b is an area recognized by a normal CD-ROM (RW), and is a part set to be recognized as a virtual device under a window of Microsoft. Therefore, the autorun program (Autorun.exe) 54 is recorded in the executable area, and if the information processing terminal is an MP3 player or a removable storage device, the autorun includes drive command information. When connected to a host as an OS, the autorun can automatically execute communication software 51 stored in the hidden area 21a. In addition, in the case of a mobile phone, the user can directly execute the communication program using the operation unit of the mobile phone. In this case, the communication software 51 may be executed by a separate middleware accessible to the hidden area 21a. The executable area 21b may also store content or programs executable therein.

On the other hand, the executable area 21b is to be rewritable (RW), which can also be made through a separate tool (API) provided by the manufacturer. The executable region 21b is displayed as a separate host drive in Explorer (Explorer.exe) of Microsoft Corporation. In addition, it is possible to read and copy the recorded data or content or program, but since the virtual CD-ROM, the data or content or program cannot be deleted. However, it can be made through a separate tool (API) provided by the manufacturer.

On the other hand, the content, application programs, such as anti-virus program can be selectively stored in any one of the executable area 21b, the second logical area 22, as shown in FIG.

In addition, the second logical area 22 is a freely accessible area for any user, and the application programs 55 and 58 or the contents 56 and 59 are recorded in the second logical area 22. If so, it can be deleted by the user. In this case, the entire data recorded in the second logical area 22 is equally recorded in the first logical area 21, that is, the executable area 21b, and the communication software 51 or a separate system is provided. The software may check the second logical area 22 to copy the data recorded in the first logical area 21 to the second logical area 132 when some or all of the entire data is deleted. . This is to prevent the deletion of data due to user's carelessness. For example, when the antivirus program is stored, when the antivirus program is removed from the second logical area 22, the first logical area 21 Users can feel the convenience by having the backup vaccine program automatically copied by communication software or system software.

Meanwhile, the server 100 may include a data list database 110 in which data lists received from a plurality of information processing terminals are recorded, a query list database 120 in which a query list which is meta information about data is recorded, and each information. A connection information database 130 in which connection information to a processing terminal is recorded, a first authentication unit 140 for authenticating a connection to each server 100 of each information processing terminal, and first authentication in which corresponding authentication information is recorded; A database 141, a second authentication unit 150 for authenticating a connection between each information processing terminal, and a second authentication database 151 in which corresponding authentication information is recorded.

The data list database 110 stores a list of data existing in the shared space 57 of the information processing terminal allowed to be accessed through the first authentication unit 140, and the query list database 120 is stored in the data list database 110. The query information list of the data existing in the shared space 57 of the information processing terminal allowed to be accessed through the first authentication unit 140 is stored. That is, the server 100 authenticates the information processing terminal connected through the network 200 through the first authentication unit 140, and if the information processing terminal is allowed to access the data list or query to the information processing terminal. Outputs a list request signal. The slave module 51b of the information processing terminal receives the request signal and provides the server with information about the contents, data including application programs, or query information about the data existing in the shared space 57 of the storage unit 20. The server 100 receives the information and stores the information in the data list database 110 or the query list database 120 together with the identification information of the corresponding information communication terminal.

The first authentication database 141 records the unique information of the plurality of information communication terminals permitted to access the server, for example, an ID, password, or ESN which is unique identification information. In 151, grouping information of a plurality of information communication terminals that allow mutual connection is recorded.

FIG. 7 is a flowchart illustrating a user of the communication system between the server 100 and the information processing terminal as described above. Hereinafter, a detailed operation will be described with reference to FIG. 7.

In the present embodiment, the communication between the MP3 player 301 and the mobile phone 600 is described as an example, but is not limited thereto.

When the user operates the MP3 player 301 and the operation unit 30 of the mobile phone 600 and outputs a connection request signal to the server through the master module 51a (s11), each MP3 player ( 301 and the slave module 51b of the mobile phone 600 request authentication information (s12). Each MP3 player 301 and the slave module 51b of the mobile phone 600 transmit the ESN recorded in the storage unit 20 to the server 100 in response to the authentication information request (s13, s14). If the first authentication unit 140 of the server 100 is a device permitted to connect by matching with the ESN stored in the first authentication database 141, each MP3 player 301 and a master module of the mobile phone 600 are provided. A connection permission signal is sent to 51a (s15).

Subsequently, when the user operates the operation unit 30 of the MP3 player 301 to input specific keywords or the like of the corresponding data to obtain specific data, and transmits the data or query search request signal through the master module 51a (s16), The list of the plurality of information communication terminals holding the requested data or the list of the plurality of information communication terminals holding the requested query is transmitted to the MP3 player 301, and the viewer module 51c of the MP3 player 301 is Display the list to the user.

Thereafter, the user transmits a signal for requesting to receive the corresponding data from the specific mobile phone 600 through the operation unit 30 (s18), and the server 100 outputs a waiting message to the MP3 player 301 (s19), It is determined whether the MP3 player 301 and the cellular phone 600 are allowed to be interconnected. The second authentication unit 150 of the server 100 searches for grouping information stored in the second authentication database 151 (s20) to allow the MP3 player 301 and the mobile phone 600 to interconnect each other. It is determined whether the processing terminal is s21. If the state is allowed, the connection information is transmitted to the MP3 player 301 so that the mobile phone 600 can be connected, and the slave module 51b of the MP3 player 301 receives the received information and transmits it to the master module 51a. The controller transmits the data request signal by connecting to the mobile phone 600 by the master module 51a. The slave module 51b of the mobile phone 600 transmits the corresponding data stored in the shared space of the mobile phone to the master module 51a of the MP3 player 301, and the master module 51a of the MP3 player 301 is MP3. The data received from the mobile phone 600 is stored in the shared space of the player 301.

Grouping information stored in the second authentication database 151 of the server 100 is a user of the communication software 51 including the master module 51a, the slave module 51b, and the viewer module 51c. It is preferably achieved by using the friend registration function provided by the interface. Communication permission information between each information communication terminal that has been registered by a user is stored in the second authentication database 151 as grouping information, and the second authentication unit 150 uses the grouping information to communicate between the information communication terminals. To authenticate communications.

In the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the portable information processing terminal and the communication system of the present invention can exchange data between the portable information processing terminals using a P2P method, thereby enabling not only data exchange but also enhancing data utilization.

In addition, there is an advantage that can provide a reliable P2P service by enabling data exchange only between mutually permitted terminals.

One embodiment of the present invention described above should not be construed as limiting the technical spirit of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention as long as it will be apparent to those skilled in the art.

Claims (19)

delete In a portable information processing terminal comprising a processor and a storage unit, The storage unit, A slave module that receives data or a query request signal that is meta information about the data from the outside and outputs the data or query to the outside, and outputs a data request signal to the outside by a user's operation, and outputs the output data request When receiving a data or query list corresponding to a signal is stored in the communication software including a master module for outputting a signal for storing it in a predetermined shared space of the storage unit or display to the user, The storage unit further stores the unique identification information of the information processing terminal, Each of the slave module and the master module requests the authentication to the outside using the unique identification information, and receives the data or query request signal from the outside only when the authentication is permitted, or outputs the data or query list request signal to the outside. Portable information processing terminal, characterized in that. The method of claim 2, The communication software, And a viewer module for displaying the data stored in the shared area or the query list received from the outside to the user. The method of claim 2, The storage unit stores the firmware driving logic of the information processing terminal, The processor, And a first storage means in which a routine for calling the firmware driving logic of the storage unit is stored, and a processing unit for executing the firmware driving logic stored in the storage unit by using the routine of the first storage means. Portable information processing terminal characterized in that. The method of claim 4, wherein The storage unit, A first logical area to which writes and deletions are restricted by any user, And the firmware driving logic is stored in the first logical area. The method of claim 5, The storage unit, And further including a second logical area to which access is allowed by any user, And the shared space is present in the second logical area. The method of claim 5, The first logical region is, Includes a hidden area where access is restricted by any user, and only access is allowed to authorized users, And the firmware driving logic is stored in the hidden area. The method of claim 7, wherein The hidden area is, Information processing terminal characterized in that the information processing terminal information generated during the manufacturing of the information processing terminal or the unique identification information of the information processing terminal is further stored. The method of claim 7, wherein And the communication software is stored in the hidden area. The method of claim 7, wherein The first logical region is, A portable information processing terminal, characterized in that it further comprises an executable area which is allowed to view and read only by any user. The method of claim 7, wherein Further comprising a connection for connecting to an external host device, And said communication software is executed by a host device connected via said connection portion. The method of claim 11, The executable region is, And a driving instruction information for executing contents or a program in the storage unit or the host by the host. The method of claim 11, The executable region is, And a content or a program executed by the host. The method of claim 7, wherein The second logical area stores the same data as at least one program or content stored in the first logical area, And the data are copied from the first logical area. The method of claim 12, The driving command information, And an autorun executed automatically by the host when the information processing terminal is connected to the host device through a connection portion, And said communication software is driven by said autorun. A communication system of a portable information processing terminal according to any one of claims 2 to 15, A plurality of information processing terminals, Receiving data including content from the plurality of information processing terminals or a query which is meta information of the data, the data processing terminal is stored in a list for each information processing terminal, and the data or the data is received from a first information processing terminal among the plurality of information processing terminals. Receives the query search request signal and transmits the data list or query list to the first information processing terminal, and receives data or query selection signal received in response to the transmission of the data list or query list from the first information processing terminal; A server for transmitting the access information of the second information processing terminal having the selected data or query to the first information processing terminal, The first information processing terminal may be connected to the second information processing terminal by using the access information of the second information processing terminal received from the server to download the data or the data corresponding to the query. Communication system of terminal. The method of claim 16, The server includes a first authentication unit for determining connection authentication of each information processing terminal, and a first authentication database storing identification information of each information processing terminal, wherein the information processing terminal stores the identification information stored in the storage unit. And requesting authentication by transmitting to a server, wherein the first authentication unit of the server receives the identification information and searches and matches the first authentication database to determine whether to authenticate. The method of claim 17, The server further includes a second authentication unit for determining connection authentication between information processing terminals, and a second authentication database storing authentication information between each information processing terminal, When receiving the data selection signal corresponding to the data or query of the second information processing terminal from the first information processing terminal that is allowed to access through the first authentication unit, the second authentication unit of the server searches and matches the second authentication database. If authorization of the first information processing terminal is granted to the second information processing terminal, the connection information of the second information processing terminal is transmitted to the first information processing terminal, and if authorization is not permitted, to the first information processing terminal. A communication system of a portable information processing terminal further comprising a feature for outputting a connection not available message. The method of claim 16, Wherein each information processing terminal is connected to a host and communicates with a server and other information processing terminals via the host.

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