Method of restricting data access to WWW server so as to permit specific user to refer to successive pages while entrance page is freely acquired by any user

Claim 1

A method of restricting a predetermined user unit to refer to data stored in a WWW server using a WWW browser in a client-server system connected to a wide area computer network, wherein: when the WWW browser at the client side demands to refer to a page-descriptive file and a relevant data file of a predetermined page of the server side, the service side generates new files which respectively have the same substantial contents as the above two files while directory-file names of character sequences for specifying each of the new files are respectively different from those of the above files to be referred to, each new file name including a character sequence specific to the user unit, and the server side informs the client side of the character sequence specific to the user unit, and the server side informs the client side of the character sequence specific to the user unit; and when the WWW browser sends the server side a request for acquiring the page-descriptive file and relevant data file by using the character sequence specific to the user unit, the server side verifies the character sequence specific to the user unit, appended to the request, and only when the verified character sequence is true, the server side sends the WWW browser the page-descriptive file and relevant data file which have been revised in content by which the WWW browser refers to the files having different names.

Claim 2

A method of restricting a predetermined user unit to refer to data stored in a WWW server using a WWW browser in a client-server system connected to a wide area computer network, wherein: when the WWW browser at the client side demands to refer to a page-descriptive file and a relevant data file of a predetermined page of the server side, the service side generates new files which respectively have the same substantial contents as the above two files while directory-file names of character sequences for specifying each of the new files are respectively different from those of the above files to be referred to, each new file name including a character sequence specific to the user unit, and the server side informs the client side of the character sequence specific to the user unit, and the server side informs the client side of the character sequence specific to the user unit; and when the WWW browser sends the server side a request for acquiring the page-descriptive file and relevant data file by using the character sequence specific to the user unit, the server side verifies the character sequence specific to the user unit, appended to the request, and only when the verified character sequence is true, the server side sends the WWW browser the page-descriptive file and relevant data file which have been revised in content by which the WWW browser refers to the files having different names.

Claim 9

A method of restricting a predetermined user unit to refer to data stored in a WWW server using a WWW browser in a client-server system connected to a wide area computer network, wherein: when the WWW browser at the client side demands to refer to a page-descriptive file and a relevant data file of a predetermined page of the server side, the server side generates a directory-file name specific to the user unit and registers data of a conversion pair of the directory-file name specific to the user unit and an original directory-file name relating to corresponding original files of the system, and informs the client side the directory-file name specific to the user unit; when the WWW browser sends the server side a request for acquiring the page-descriptive file and relevant data file using the directory-file name specific to the user unit, the server side refers to the conversion pair and converts the directory-file name specific to the user unit to the original directory-file name, and informs the WWW server at the server side of the converted name, the WWW server reads out the page-descriptive file and relevant data file according to the original directory-file name; and the server side reconverts the original directory-file name to the directory-file name specific to the user unit, and sends the WWW browser the read-out page-descriptive file and relevant data file.

Claim 10

A method of restricting a predetermined user unit to refer to data stored in a WWW server using a WWW browser in a client-server system connected to a wide area computer network, wherein: when the WWW browser at the client side demands to refer to a page-descriptive file and a relevant data file of a predetermined page of the server side, the server side generates a directory-file name specific to the user unit and registers data of a conversion pair of the directory-file name specific to the user unit and an original directory-file name relating to corresponding original files of the system, and informs the client side the directory-file name specific to the user unit; when the WWW browser sends the server side a request for acquiring the page-descriptive file and relevant data file using the directory-file name specific to the user unit, the server side refers to the conversion pair and converts the directory-file name specific to the user unit to the original directory-file name, and informs the WWW server at the server side of the converted name, the WWW server reads out the page-descriptive file and relevant data file according to the original directory-file name; and the server side reconverts the original directory-file name to the directory-file name specific to the user unit, and sends the WWW browser the read-out page-descriptive file and relevant data file.

Claim 15

A method of restricting data reference in a client-server system connected to a wide area computer network so as to collect charges, which are predetermined for each data provided from a WWW server, with telephone tolls, wherein: an information-providing server informs a client, which has connected to the wide area computer network via a predetermined telephone line, of a list of possible data provided by the WWW server at the information-providing server side; when the client side selects desired data from the communicated data list and informs the information-providing server side of the selected data, the information-providing server side informs the client side of a telephone number which has been assigned for the relevant data and is used for substitutingly performing information-charge collection; the client side then disconnects the predetermined telephone line and sends a call using the telephone number received from the information-providing server side and establishes a dial-up connection with an access control server to which the client can be connected using the above telephone number, and client side informs the access control server a name of the desired data; and when the access control server confirms that the client side has established connection using the telephone number assigned for the relevant data, the control server informs the information-providing server of agreement to data reference, by which the information-providing server sends the client side the relevant data.

Claim 16

A method of restricting data reference in a client-server system connected to a wide area computer network so as to collect charges, which are predetermined for each data provided from a WWW server, with telephone tolls, wherein: an information-providing server informs a client, which has connected to the wide area computer network via a predetermined telephone line, of a list of possible data provided by the WWW server at the information-providing server side; when the client side selects desired data from the communicated data list and informs the information-providing server side of the selected data, the information-providing server side informs the client side of a telephone number which has been assigned for the relevant data and is used for substitutingly performing information-charge collection; the client side then disconnects the predetermined telephone line and sends a call using the telephone number received from the information-providing server side and establishes a dial-up connection with an access control server to which the client can be connected using the above telephone number, and client side informs the access control server a name of the desired data; and when the access control server confirms that the client side has established connection using the telephone number assigned for the relevant data, the control server informs the information-providing server of agreement to data reference, by which the information-providing server sends the client side the relevant data.