Large capacity data sales mediation server and method

A large capacity data sales mediation method comprising steps of:

• extracting at a user terminal from a large capacity storage medium an online access code corresponding to large capacity data and sending a registration request signal including user identification information and said online access code to a large capacity data sales server;
• sending from said large capacity data sales server said user identification information to a large capacity data sales mediation server;
• performing at said large capacity data sales mediation server authentication of said user identification information and sending results of said authentication to said large capacity data sales server;
• sending from the large capacity data sales server to said user terminal a registration confirmation signal including the key code corresponding to said online access code;
• encrypting at said user terminal said key code;
• storing at said user terminal said encrypted key code;
• and
• reproducing at said user terminal said large capacity data by using said key code, wherein said large capacity data sales server sends said registration confirmation signal to said user terminal upon receiving from said large capacity data sales mediation server results of said authentication indicating that said user identification information is authentic.

A large capacity data sales mediation system having a user terminal, a large capacity data sales mediation server and a large capacity data sales server, said user terminal comprising:

• means for sending to said large capacity data sales mediation server a registration request signal including user identification information and an online access code unique to large capacity data stored in a large capacity storage medium;
• means for receiving from said large capacity data sales mediation server a registration confirmation signal including a key code corresponding to said online access code;
• means for encrypting said key code;
• means for storing said encrypted key code;
• and
• means for reproducing large capacity data by using the key code,
• said large capacity data sales mediation server comprising:
• storage means for storing user information;
• means for determining whether user information corresponding to said user identification information is stored in said storage means;
• means for sending said online access code to said large capacity data sales server;
• means for receiving from said large capacity data sales server said key code corresponding to said online access code;
• means for sending to the user terminal said registration confirmation signal;
• and
• means for counting a number of user terminals storing the key code, and
• said large capacity data sales server comprising:
• means for storing information on the key code corresponding to said online access code;
• and
• means for acquiring the key code corresponding to said online access code from said means for storing information and sending the key code to said large capacity data sales mediation server,
• wherein said large capacity data sales mediation server sends said registration confirmation signal to said user terminal upon acquiring user information corresponding to the user identification information from said storage means, meeting at the large capacity data sales server a condition that the key code corresponding to said online access code is stored in said means for storing information, and determining that the number of user terminals storing the key code is smaller than a predetermined number.

A large capacity data sales mediation method comprising steps of:

• extracting at a user terminal from a large capacity storage medium an online access code corresponding to large capacity data and sending a registration request signal including user identification information and said online access code to a large capacity data sales mediation server;
• sending by said large capacity data sales mediation server the online access code to said large capacity data sales server;
• retrieving at said large capacity data sales server a key code corresponding to said online access code and sending by said large capacity data sales server said key code to said large capacity data sales mediation server;
• sending by the large capacity data sales mediation server to said user terminal a registration confirmation signal including the key code;
• encrypting at said user terminal said key code;
• storing at said user terminal said encrypted key code;
• and
• reproducing at said user terminal the large capacity data by using said key code,
• wherein said large capacity data sales mediation server sends to said user terminal said registration confirmation signal upon said large capacity data sales mediation server acquiring user information corresponding to said user identification information, said large capacity data sales server acquiring the key code corresponding to said online access code, and said large capacity data sales mediation server determining that a number of user terminals storing the key code is smaller than a predetermined number.

A large capacity data sales mediation server comprising:

• means for receiving from a user terminal a registration request signal comprising an online access code and user identification information, said user terminal having large capacity data stored in a large capacity storage medium;
• storage means for storing user information;
• means for storing information on a key code corresponding to said online access code;
• means for acquiring the key code from a large capacity data sales server and storing the key code in said means for storing;
• means for determining whether user information corresponding to said user identification information is stored in said storage means;
• means for acquiring the key code from said means for storing and sending to the user terminal a registration confirmation signal comprising the key code;
• and
• means for counting a number of user terminals storing the key code,
• wherein said large capacity data sales mediation server sends to said user terminal said registration confirmation signal upon acquiring user information corresponding to said user identification information from said storage means, acquiring the key code from said means for storing, and t determining that the number of user terminals storing the key code is smaller than a predetermined number, and
• wherein said key code is used by said user terminal to reproduce said large capacity data at said user terminal.

A large capacity data sales mediation method comprising steps of:

• extracting, at a user terminal, from a large capacity storage medium an online access code corresponding to large capacity data and sending a registration request signal comprising user identification information and said online access code to a large capacity data sales mediation server;
• sending by a large capacity data sales server to said large capacity data sales mediation server a key code corresponding to said online access code;
• storing at said large capacity data sales mediation server said key code;
• sending by the large capacity data sales mediation server to said user terminal a registration confirmation signal including the key code;
• encrypting at said user terminal said key code;
• storing at said user terminal said encrypted key code;
• counting at said large capacity data sales mediation server a number of user terminals storing said key code;
• and
• reproducing at said user terminal the large capacity data by using said key code,
• wherein said large capacity data sales mediation server sends to said user terminal said registration confirmation signal upon acquiring user information corresponding to said user identification information from said large capacity data sales mediation server, acquiring the key code from either said large capacity data sales mediation server or said large capacity data sales server, and determining that the number of user terminals storing the key code is smaller than a predetermined number.

The large capacity data sales mediation method according to claim 56, further comprising steps of:

• sending by said user terminal to said large capacity data sales mediation server a deregistration request signal including a request for erasure of said encrypted key code in the user terminal;
• sending by said large capacity data sales mediation server send a deregistration confirmation signal to said user terminal;
• and
• upon receiving the deregistration confirmation signal from said large capacity data sales mediation server, erasing at said user terminal said encrypted key code.