Multiplex communications – Special services – Distribution of signal to multiple agent stations
Reexamination Certificate
2000-04-18
2004-09-14
Chin, Wellington (Department: 2664)
Multiplex communications
Special services
Distribution of signal to multiple agent stations
C370S260000
Reexamination Certificate
active
06791951
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a method and system for establishing a connection between terminals without specifying a called terminal, and a switched network control device using this method. Particularly, the present invention relates to a software game service capable of executing a one-to-one game or a game in which a plurality of players can simultaneously participate.
DESCRIPTION OF THE RELATED ART
Conventionally, a software game company has a game service facility with a plurality of modems and a lobby server in order to execute one-to-one games or games in each of which a plurality of players can simultaneously participate.
FIG. 1
schematically illustrates a system configuration of a conventional game service system. As shown in the figure, a player who wants to participate in a game can access to a server
2
of the software game company from a game terminal
4
via a telephone network
3
or Internet. Thus, the game can be advanced by a plurality of players who log in the server
2
.
Most of the latest software games require real time high-speed transmission in order to more increase an actual feeling of the game. Especially, in match type games such as shooting games, car race or rally games and battle games, it is necessary to transmit control information between the participated players in an instant. However, in the conventional game service system, because many communication devices such as routers, modems or terminal adapters (TA) are existed between players connected with each other via the telephone network or the Internet, there is a large time delay in information transmission between the players and thus it is difficult to play with satisfaction such games requiring high-speed information transmission.
Also, according to the conventional game service, since an accounting system in which the account is always charged to an originating player (caller accounting system) is adopted, it is very inconvenient for playing a one-to-one match type game between two players.
Furthermore, the conventional game service system cannot be expected to completely keep identity of a game terminal in secret. Most of game players will hope to hide behind anonymity when they participate in games like as in the chat page of Internet. Also, it is very important for the connection number of the game terminal to be kept secret so that it may not be abused.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a method and system for establishing a connection between terminals without specifying a called terminal, and a switched network control device using this method, whereby high-speed information transmission can be expected in a one-to-one communication or a communication in which a plurality of terminals can simultaneously participate.
Another object of the present invention is to provide a method and system for establishing a connection between terminals without specifying a called terminal, and a switched network control device using this method, whereby split accounting can be expected in a one-to-one communication or a communication in which a plurality of terminals can simultaneously participate.
Further object of the present invention is to provide a method and system for establishing a connection between terminals without specifying a called terminal, and a switched network control device using this method, whereby the identity of a terminal subscriber can be kept secret in a one-to-one communication or a communication in which a plurality of terminals can simultaneously participate.
According to the present invention, a method establishes a connection in a system without specifying a called terminal. The system includes a plurality of terminals which contain first and second terminals, a terminal selection device for selecting at least one terminal to be connected from the terminals and a switched network control device for controlling connection of call between the terminals and the terminal selection device. The method includes first to third connection stages. The first connection stage includes issuing a call from the first terminal using a predetermined number without specifying a called terminal, connecting by the switched network control device the call from the first terminal with the terminal selection device, registering the first terminal in the terminal selection device when no terminal is selected, noticing “there is no terminal to be connected” to the first terminal as a selected result from the terminal selection device when no terminal is selected, and disconnecting the call. The second connection stage includes issuing a call from the second terminal using a predetermined number without specifying a called terminal, connecting by the switched network control device the call from the second terminal with the terminal selection device, noticing “there is a terminal to be connected” and “a connection number of the first terminal” to the second terminal as a selected result from the terminal selection device when the first terminal is selected, and disconnecting the call. The third connection stage includes issuing a call from the second terminal using the predetermined number when the selection result is “there is a terminal to be connected”, noticing “a connection number of the first terminal” from the second terminal to the switched network control device, and connecting by the switched network control device the call from the second terminal with the first terminal.
Since calls of a plurality of terminals can be directly connected, high-speed information transmission is expected in a one-to-one communication or a communication in which a plurality of terminals can simultaneously participate. Thus, software services that require real time operations can be used between the terminals.
According to the present invention, also, a method for establishing a connection in a system without specifying a called terminal includes first to third connection stages. The first connection stage includes issuing a call from the first terminal using a predetermined number without specifying a called terminal, connecting by the switched network control device the call from the first terminal with the terminal selection device, registering the first terminal in the terminal selection device when no terminal is selected, noticing “there is no terminal to be connected” to the first terminal as a selected result from the terminal selection device when no terminal is selected, and disconnecting the call. The second connection stage includes issuing a call from the second terminal using a predetermined number without specifying a called terminal, connecting by the switched network control device the call from the second terminal with the terminal selection device, noticing “there is a terminal to be connected” and cipher data of “a connection number of the first terminal” to the second terminal as a selected result from the terminal selection device when the first terminal is selected, and disconnecting the call. The third connection stage includes issuing a call from the second terminal using the predetermined number when the selection result is “there is a terminal to be connected”, noticing “cipher data of a connection number of the first terminal” from the second terminal to the switched network control device, deciphering the cipher data to obtain “a connection number of the first terminal”, and connecting by the switched network control device the call from the second terminal with the first terminal.
The connection number of the selected first terminal can be kept secret. Thus, the connection number is never used by an illegal terminal.
According to the present invention, furthermore, a method for establishing a connection in a system without specifying a called terminal includes first to third connection stages. The first connection stage includes issuing a call from the first terminal using a predetermined number without specifying a called terminal, connecting by the switched network control device the call
Kawabe Shuji
Matsumoto Kazuyasu
Miyamoto Junnosuke
Murakami Hitomi
Arent & Fox PLLC
Chin Wellington
KDD Corporation
Schultz William
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