Large capacity data sales/mediation/purchase method, system, server, terminal and recording medium recording program thereof

Abstract

An animation data sales mediation method, an animation data sales mediation system and so on are capable of providing large capacity data such as animation data by a large capacity storage medium in advance, rendering the time required for transfer of the data via the network extremely short by passing a key code for viewing the animation data via the network, rendering the labor and costs required for sales of the animation data extremely low, and providing the latest unauthorized copy technology to the animation data. The animation data sales mediation system has the steps of having a user terminal send to a large capacity data sales server an online access code corresponding to the large capacity data one to one, having the large capacity data sales server send the key code to the user terminal, having the user terminal encrypt and store the key code, and having the animation data used by using the key code.

What is claimed is:  
     
         1 . A large capacity data sales system having a user terminal and a large capacity data sales server, said user terminal comprising: 
 means for sending to said large capacity data sales server an online access code unique to large capacity data stored in a large capacity storage medium by including it in a registration request signal;    means for encrypting and storing a key code included in a registration confirmation signal received from said large capacity data sales server; and    means for reproducing the large capacity data by using 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 one to one; and  
 means for, in the case where said registration request signal has a registration confirmation signal sending requirement, acquiring the key code corresponding to said online access code from said means for storing and sending the key code to the user terminal by including it in the registration confirmation signal.  
   
     
     
         2 . The large capacity data sales system according to  claim 1 , wherein said large capacity data sales server further comprising means for determining the number of the user terminals for storing the key code corresponding to said online access code one to one respectively.  
     
     
         3 . The large capacity data sales system according to  claim 2 , wherein said large capacity data sales server sets conditions for said registration confirmation signal sending requirement, including a condition that information on the key code corresponding to said online access code one to one is stored in said means for storing and a condition that the number of the user terminals for storing the key code corresponding to said online access code one to one is smaller than a predetermined number.  
     
     
         4 . The large capacity data sales system according to  claim 1 , wherein; 
 said registration request signal further includes user identification information, and    said large capacity data sales server further has storage means for user information, and sets a condition, for said registration confirmation signal sending requirement, that said user identification information corresponds to said user information.    
     
     
         5 . The large capacity data sales system according to  claim 1 , wherein said large capacity data sales server sets a condition, for said registration confirmation signal sending requirement, that a usage charge for said large capacity data is paid.  
     
     
         6 . The large capacity data sales system according to  claim 1 , wherein said user terminal further comprises: 
 means for sending to said large capacity data sales server a deregistration request signal for requesting erasure of said key code in the user terminal; and    means for, in the case of receiving the deregistration confirmation signal from the large capacity data sales server, erasing said key code in said user terminal, and    said large capacity data sales server further comprises means for, in the case where said deregistration request signal has a deregistration confirmation signal sending requirement, sending said deregistration confirmation signal to said user terminal.    
     
     
         7 . A user terminal comprising: 
 means for sending to the large capacity data sales server an online access code unique to large capacity data stored in a large capacity storage medium by including it in a registration request signal;    means for encrypting and storing a key code included in a registration confirmation signal received from said large capacity data sales server; and    means for reproducing the large capacity data by using the key code.    
     
     
         8 . The user terminal according to  claim 7 , comprising: 
 means for sending to said large capacity data sales server a deregistration request signal including a request for erasure of said key code in the user terminal; and    means for, in the case of receiving a deregistration confirmation signal from the large capacity data sales server, erasing said key code.    
     
     
         9 . A large capacity data sales server, comprising: 
 means for storing information on a key code corresponding to an online access code one to one;    means for, in the case where a registration request signal received from a user terminal has a registration confirmation signal sending requirement, acquiring the key code corresponding to said online access code one to one from said means for storing and sending a registration confirmation signal including the key code to the user terminal.    
     
     
         10 . The large capacity data sales server according to  claim 9 , comprising: 
 means for determining the number of the user terminals for storing the key code corresponding to said online access code one to one respectively; and    conditions for said registration confirmation signal sending requirement including a condition that information on the key code corresponding to said online access code one to one is stored in said means for storing and a condition that the number of the user terminals for storing the key code corresponding to said online access code one to one is smaller than a predetermined number.    
     
     
         11 . The large capacity data sales server according to  claim 10 , wherein said registration request signal further includes user identification information, and said server further has storage means for user information, and sets a condition, for said registration confirmation signal sending requirement, that said user identification information corresponds to said user information.  
     
     
         12 . The large capacity data sales server according to  claim 9 , characterized by setting a condition, for said registration confirmation signal sending requirement, that a usage charge for said large capacity data is paid.  
     
     
         13 . The large capacity data sales server according to  claim 9 , characterized by further comprising means for, in the case where a deregistration request signal has a deregistration confirmation signal sending requirement, sending a deregistration confirmation signal to the user terminal having sent said deregistration request signal.  
     
     
         14 . A large capacity data sales method comprising the steps of: 
 having a user terminal extract from a large capacity storage medium an online access code corresponding to large capacity data one to one and send the online access code to a large capacity data sales server by including it in a registration request signal;    in the case where said registration request signal has a registration confirmation signal sending requirement, having the large capacity data sales server send to said user terminal a registration confirmation signal including a key code corresponding to said online access code one to one;    having said user terminal encrypt and store said key code; and    having said user terminal reproduce the large capacity data by using said key code.    
     
     
         15 . The large capacity data sales method according to  claim 14 , further comprising the step of: 
 having said large capacity data sales server determine for each said online access code the number of the user terminals for storing the key code corresponding to said online access code one to one;    the conditions for said registration request signal to have said registration confirmation signal sending requirement including a condition that said large capacity data sales server can acquire information on the key code corresponding to said online access code one to one and a condition that the number of the user terminals for storing the key code is smaller than a predetermined number.    
     
     
         16 . The large capacity data sales method according to  claim 14 , wherein said registration request signal further includes user identification information, and said large capacity data sales server further stores user information, and sets a condition, for said registration confirmation signal sending requirement, that said user identification information corresponds to said user information.  
     
     
         17 . The large capacity data sales method according to  claim 14 , characterized by setting a condition, for said registration confirmation signal sending requirement, that a usage charge for said large capacity data is paid.  
     
     
         18 . The large capacity data sales method according to  claim 14 , comprising the steps of: 
 having said user terminal send to said large capacity data sales server a deregistration request signal including a request for erasure of said key code in the user terminal;    in the case where said deregistration request signal has a deregistration confirmation signal sending requirement, having said large capacity data sales server send said deregistration confirmation signal to said user terminal; and    in the case of receiving the deregistration confirmation signal from said large capacity data sales server, having said user terminal erase said key code.    
     
     
         19 . 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 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 encrypting and storing a key code included in a registration confirmation signal received from said large capacity data sales server; and    means for reproducing the large capacity data by using the key code,    said large capacity data sales server comprising: 
 means for storing information on the key code corresponding to said online access code one to one;  
 means for sending said user identification information to said large capacity data sales mediation server; and  
 means for, in the case where the registration request signal inputted from said user terminal has a registration confirmation signal sending requirement, acquiring the key code corresponding to said online access code from said means for storing and sending the key code to the user terminal by including it in the registration confirmation signal, and  
 said large capacity data sales mediation server comprising:  
   storage means for user information; and    means for determining whether or not the user information corresponding to said user identification information is stored in said storage means and sending the determination results to said large capacity data sales mediation server, and    said registration confirmation signal sending requirement setting a condition that it receives from said large capacity data sales mediation server a notice to the effect that the user information corresponding to said user identification information is stored in said storage means.    
     
     
         20 . The large capacity data sales mediation system according to  claim 19 , wherein said large capacity data sales server further comprises means for determining the number of the user terminals for storing the key code corresponding to said online access code one to one respectively.  
     
     
         21 . The large capacity data sales mediation system according to  claim 20 , wherein said large capacity data sales server further has conditions for said registration confirmation signal sending requirement including a condition that information on the key code corresponding to said online access code one to one is stored in said means for storing, and a condition that the number of the user terminals for storing the key code corresponding to said online access code one to one is smaller than a predetermined number.  
     
     
         22 . The large capacity data sales mediation system according to  claim 19 , wherein said large capacity data sales server sets a condition, for said registration confirmation signal sending requirement, that a usage charge for said large capacity data is paid.  
     
     
         23 . The large capacity data sales mediation system according to  claim 19 , wherein said user terminal further comprises: 
 means for sending to said large capacity data sales server a deregistration request signal for requesting erasure of said key code in the user terminal; and    means for, in the case of receiving the deregistration confirmation signal from the large capacity data sales server, erasing said key code in said user terminal, and    said large capacity data sales server further comprises means for, in the case where said deregistration request signal has a deregistration confirmation signal sending requirement, sending said deregistration confirmation signal to said user terminal.    
     
     
         24 . A large capacity data sales server, comprising: 
 means for storing information on a key code corresponding to an online access code one to one;    means for having a large capacity data sales mediation server perform user authentication based on user identification information included in a registration request signal inputted from a user terminal; and    means for, in the case where said registration request signal has a registration confirmation signal sending requirement, acquiring the key code corresponding to said online access code from said means for storing and sending the key code to the user terminal by including it in a registration confirmation signal,    said registration confirmation signal sending requirement including a condition that the user is identified by said user authentication.    
     
     
         25 . The large capacity data sales server according to  claim 24 , further comprising: 
 means for determining the number of the user terminals for storing the key code corresponding to said online access code one to one respectively; and    conditions, for said registration confirmation signal sending requirement, that is, a condition that information on the key code corresponding to said online access code one to one is stored in said means for storing and a condition that the number of the user terminals for storing the key code corresponding to said online access code one to one is smaller than a predetermined number.    
     
     
         26 . The large capacity data sales server according to  claim 24 , characterized by setting a condition, for said registration confirmation signal sending requirement, that a usage charge for said large capacity data is paid.  
     
     
         27 . The large capacity data sales server according to  claim 24 , further comprising means for, in the case where a received deregistration request signal has a deregistration confirmation signal sending requirement, sending a deregistration confirmation signal to said user terminal.  
     
     
         28 . A large capacity data sales mediation server comprising: 
 storage means for user information; and    means for determining whether or not the user information corresponding to user identification information inputted from a large capacity data sales server is stored in said storage means and sending the determination results to said large capacity data sales mediation server.    
     
     
         29 . A large capacity data sales mediation method comprising the steps of: 
 having a user terminal extract from a large capacity storage medium an online access code corresponding to large capacity data one to one and send a registration request signal including user identification information and said online access code to a large capacity data sales server;    having said large capacity data sales server send said user identification information to the large capacity data sales mediation server;    having said large capacity data sales mediation server perform user authentication based on said user identification information and send authentication results to said large capacity data sales server;    in the case where said registration request signal has a registration confirmation signal sending requirement, having the large capacity data sales server send to said user terminal a registration confirmation signal including the key code corresponding to said online access code one to one;    having said user terminal encrypt and store said key code; and    having said user terminal reproduce said large capacity data by using said key code, wherein said registration confirmation signal sending requirement has a condition that the user is identified by said authentication results.    
     
     
         30 . The large capacity data sales mediation method according to  claim 29 , further comprising the step of: 
 having said large capacity data sales server determine for each said online access code the number of the user terminals for storing the key code corresponding to said online access code one to one; wherein    the conditions for said registration request signal to meet said registration confirmation signal sending requirement includes a condition that said large capacity data sales server can acquire information on the key code corresponding to said online access code one to one and a condition that the number of the user terminals for storing said key code is smaller than a predetermined number.    
     
     
         31 . The large capacity data sales mediation method according to  claim 29 , characterized by setting a condition, for said registration confirmation signal sending requirement, that a usage charge for said large capacity data is paid.  
     
     
         32 . The large capacity data sales mediation method according to  claim 31 , further comprising the steps of: 
 having a manager of said large capacity data sales mediation server pay said usage charge to a manager of said large capacity data sales server; and    having the manager of said large capacity data sales mediation server collect said usage charge from the user of said large capacity data.    
     
     
         33 . The large capacity data sales mediation method according to  claim 29 , further comprising the steps of: 
 having said user terminal send to said large capacity data sales server a deregistration request signal including a request for erasure of said key code in the user terminal;    in the case where said deregistration request signal has a deregistration confirmation signal sending requirement, having said large capacity data sales server send said deregistration confirmation signal to said user terminal; and    in the case of receiving the deregistration confirmation signal from said large capacity data sales server, having said user terminal erase said key code.    
     
     
         34 . 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 encrypting and storing a key code included in a registration confirmation signal received from said large capacity data sales mediation server; and    means for reproducing large capacity data by using the key code, and    said large capacity data sales mediation server comprising: 
 storage means for user information;  
 means for determining whether or not user information corresponding to said user identification information is stored in said storage means;  
 means for sending an online access code included in said registration request signal to said large capacity data sales server;  
 means for, in the case where the registration request signal inputted from said user terminal has a registration confirmation signal sending requirement, sending to the user terminal said registration confirmation signal including the key code inputted from said large capacity data sales server; and  
 means for determining the number of the user terminals for storing the key code corresponding to said online access code one to one, and  
 said large capacity data sales server comprising:  
   means for storing information on the key code corresponding to said online access code one to one; and    means for acquiring the inputted key code corresponding to said online access code from said means for storing and sending the key code to said large capacity data sales mediation server, and    said registration confirmation signal sending requirement including a condition that user information corresponding to the user information included in said registration request signal is stored in said storage means, a condition that the information on the key code corresponding to said online access code one to one is stored in said means for storing, and a condition that the number of the user terminals for storing the key code corresponding to said online access code one to one is smaller than a predetermined number.    
     
     
         35 . The large capacity data sales mediation system according to  claim 34 , wherein said large capacity data sales mediation server sets a condition, for said registration confirmation signal sending requirement, that a usage charge for said large capacity data is paid.  
     
     
         36 . The large capacity data sales mediation system according to  claim 34 , wherein said user terminal further comprises: 
 means for sending to said large capacity data sales mediation server a deregistration request signal for requesting erasure of said key code in the user terminal; and    means for, in the case of receiving a deregistration confirmation signal from the large capacity data sales mediation server, erasing said key code in said user terminal, and    said large capacity data sales mediation server further has means for, in the case where said deregistration request signal received has a deregistration confirmation signal sending requirement, sending said deregistration confirmation signal to said user terminal.    
     
     
         37 . A user terminal comprising: 
 means for sending to a 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 encrypting and storing a key code included in a registration confirmation signal received from said large capacity data sales mediation server; and    means for reproducing large capacity data by using the key code.    
     
     
         38 . The user terminal according to  claim 37 , further comprising: 
 means for sending to said large capacity data sales mediation server a deregistration request signal requesting erasure of said key code in the user terminal; and    means for, in the case of receiving a deregistration confirmation signal from the large capacity data sales mediation server, erasing said key code in said user terminal.    
     
     
         39 . A large capacity data sales server comprising: 
 means for storing information on a key code corresponding to an online access code one to one;    means for acquiring from said means for storing the key code corresponding to the online access code inputted from the large capacity data sales mediation server and sending the key code to said large capacity data sales mediation server.    
     
     
         40 . A large capacity data sales mediation server comprising: 
 storage means for user information;    means for determining whether or not the user information corresponding to user identification information included in a registration request signal is stored in said storage means;    means for sending an online access code included in said registration request signal to said large capacity data sales server;    means for, in the case where said registration request signal has a registration confirmation signal sending requirement, sending to the user terminal said registration confirmation signal including a key code inputted from said large capacity data sales server; and    means for determining the number of the user terminals for storing the key code corresponding to said online access code one to one respectively,    said registration confirmation signal sending requirement setting a condition that user information corresponding to said user identification information is stored in said storage means, a condition that the information on the key code corresponding to said online access code one to one is stored in said means for storing, and a condition that the number of the user terminals for storing the key code corresponding to said online access code one to one is smaller than a predetermined number.    
     
     
         41 . The large capacity data sales mediation server according to  claim 40 , wherein said registration confirmation signal sending requirement includes a condition that a usage charge for said large capacity data is paid.  
     
     
         42 . The large capacity data sales mediation server according to  claim 40 , comprising means for sending a deregistration confirmation signal to said user terminal in the case where a deregistration request signal received from the user terminal meets a deregistration confirmation signal sending requirement.  
     
     
         43 . A large capacity data sales mediation method comprising the steps of: 
 having a user terminal extract from a large capacity storage medium an online access code corresponding to large capacity data one to one and send a registration request signal including user identification information and said online access code to a large capacity data sales mediation server;    having said large capacity data sales mediation server send the online access code included in said registration request signal to said large capacity data sales server;    having said large capacity data sales server send a key code corresponding to said inputted online access code one to one to said large capacity data sales mediation server;    in the case where said registration request signal has a registration confirmation signal sending requirement, having the large capacity data sales mediation server send to said user terminal a registration confirmation signal including the key code inputted from said large capacity data sales server;    having said user terminal encrypt and store said key code; and    having said user terminal reproduce the large capacity data by using said key code,    wherein said registration confirmation signal sending requirement includes a condition that user information corresponding to said user identification information is stored in said large capacity data sales mediation server, a condition that the information on the key code corresponding to said online access code one to one is stored in said large capacity data sales server, and a condition that the number of the user terminals for storing the key code corresponding to said online access code one to one is smaller than a predetermined number.    
     
     
         44 . The large capacity data sales mediation method according to  claim 43 , wherein said registration confirmation signal sending requirement includes a condition that a usage charge for said large capacity data is paid.  
     
     
         45 . The large capacity data sales mediation method according to  claim 43 , further comprising the steps of: 
 having said user terminal send to said large capacity data sales mediation server a deregistration request signal including a request for erasure of said key code in the user terminal;    in the case where said received deregistration request signal has a deregistration confirmation signal sending requirement, having said large capacity data sales mediation server send said deregistration confirmation signal to said user terminal; and    in the case of receiving the deregistration confirmation signal from said large capacity data sales mediation server, having said user terminal erase said key code.    
     
     
         46 . 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 encrypting and storing a key code included in a registration confirmation signal received from said large capacity data sales mediation server; and    means for using large capacity data by using the key code,    said large capacity data sales server comprising: 
 first means for storing information on the key code corresponding to said online access code one to one; and  
 means for sending information on the key code to said large capacity data sales mediation server in predetermined timing, and  
 said large capacity data sales mediation server comprising:  
   storage means for user information;    second means for storing information on the key code corresponding to said online access code one to one;    means for determining the number of the user terminals for storing the key code corresponding to said online access code one to one respectively;    means for acquiring the information on the key code from said large capacity data sales server and storing it in said second means for storing;    means for determining whether or not user information corresponding to said user identification information is stored in said storage means; and    means for, in the case where the registration request signal has a registration confirmation signal sending requirement, acquiring the key code corresponding to the registration request signal one to one from said second means for storing and sending to the user terminal said registration confirmation signal including the key code,    wherein said registration confirmation signal sending requirement includes a condition that user information corresponding to said user identification information is stored in said storage means, a condition that the information on the key code corresponding to said online access code one to one is stored in either said first or second means for storing, and a condition that the number of the user terminals for storing the key code corresponding to said online access code one to one is smaller than a predetermined number.    
     
     
         47 . The large capacity data sales mediation system according to  claim 46 , wherein said predetermined timing is timing to be given a notice from said large capacity data sales mediation server that no key code corresponding to said online access code is stored in said second means for storing.  
     
     
         48 . The large capacity data sales mediation system according to  claim 46 , wherein said large capacity data sales mediation server sets a condition, for said registration confirmation signal sending requirement, that a usage charge for said large capacity data is paid.  
     
     
         49 . The large capacity data sales mediation system according to  claim 46 , wherein said user terminal further comprises: 
 means for sending to said large capacity data sales mediation server a deregistration request signal for requesting erasure of said key code in the user terminal; and    means for, in the case of receiving a deregistration confirmation signal from the large capacity data sales mediation server, erasing said key code in said user terminal, and    said large capacity data sales mediation server further comprises means for, in the case where said received deregistration request signal has a deregistration confirmation signal sending requirement, sending said deregistration confirmation signal to said user terminal.    
     
     
         50 . A large capacity data sales server comprising: 
 means for storing information on a key code corresponding to an online access code one to one; and    means for sending information on the key code to a large capacity data sales mediation server in predetermined timing.    
     
     
         51 . The large capacity data sales server according to  claim 50 , wherein said predetermined timing is the timing to be given a notice that said large capacity data sales mediation server detects no key signal corresponding to said online access signal stored in the server.  
     
     
         52 . A large capacity data sales mediation server comprising: 
 storage means for user information;    means for storing information on a key code corresponding to an online access code one to one;    means for acquiring the information on the key code from said large capacity data sales server and storing it in said means for storing;    means for determining whether or not user information corresponding to user identification information included in a registration request signal inputted from the user terminal is stored in said storage means;    means for, in the case where said registration request signal has a registration confirmation signal sending requirement, acquiring the key code corresponding to the registration request signal one to one from said means for storing and sending to the user terminal said registration confirmation signal including the key code;    means for determining the number of the user terminals for storing the key code corresponding to said online access code one to one respectively,    wherein said registration confirmation signal sending requirement includes a condition that user information corresponding to said user identification information is stored in said storage means, a condition that the information on the key code corresponding to said online access code one to one is stored in said means for storing, and a condition that the number of the user terminals for storing the key code corresponding to said online access code one to one is smaller than a predetermined number.    
     
     
         53 . The large capacity data sales mediation server according to  claim 52 , wherein the information on said key code is acquired from said large capacity data sales server in the case of detecting no key code corresponding to the online access code included in said registration request signal stored in said means for storing.  
     
     
         54 . The large capacity data sales mediation server according to  claim 52 , wherein said registration confirmation signal sending requirement includes a condition that a usage charge for said large capacity data is paid.  
     
     
         55 . The large capacity data sales mediation server according to  claim 52 , comprising means for, in the case where said received deregistration request signal has a deregistration confirmation signal sending requirement, sending a deregistration confirmation signal to said user terminal.  
     
     
         56 . A large capacity data sales mediation method comprising the steps of: 
 having a large capacity data sales server send to a large capacity data sales mediation server information on a key code corresponding to an online access code one to one;    having said large capacity data sales mediation server store the information on said key code;    having a user terminal extract the online access code corresponding one to one to large capacity data stored in a large capacity storage medium storing the large capacity data and send a registration request signal including user identification information and said online access code to the large capacity data sales mediation server;    in the case where said registration request signal has a registration confirmation signal sending requirement, having the large capacity data sales mediation server send to said user terminal a registration confirmation signal including the key code corresponding to the online access signal included in the registration request signal;    having said user terminal encrypt and store said key code; and    having said user terminal reproduce the large capacity data by using said key code,    said registration confirmation signal sending requirement including a condition that user information corresponding to said user identification information is stored in said large capacity data sales mediation server, a condition that the information on the key code corresponding to said online access code one to one is stored in either said large capacity data sales mediation server or said large capacity data sales server, and a condition that the number of the user terminals for storing the key code corresponding to said online access code one to one is smaller than a predetermined number.    
     
     
         57 . The large capacity data sales mediation method according to  claim 56 , wherein said registration confirmation signal sending requirement includes a condition that a usage charge for said large capacity data is paid.  
     
     
         58 . The large capacity data sales mediation method according to  claim 56 , further comprising the steps of: 
 in the case where no information on the key code corresponding to said online access code is stored, having said large capacity data sales mediation server send the online access code to said large capacity data sales server; and    having said large capacity data sales server send the information on the key code corresponding to said online access code to said large capacity data sales mediation server.    
     
     
         59 . The large capacity data sales mediation method according to  claim 56 , further comprising the steps of: 
 having said user terminal send to said large capacity data sales mediation server a deregistration request signal including a request for erasure of said key code in the user terminal;    in the case where said received deregistration request signal has a deregistration confirmation signal sending requirement, having said large capacity data sales mediation server send said deregistration confirmation signal to said user terminal; and    in the case of receiving the deregistration confirmation signal from said large capacity data sales mediation server, having said user terminal erase said key code.    
     
     
         60 . A computer-readable recording medium recording a program for implementing the steps of: 
 sending to a large capacity data sales server a registration request signal including an online access code unique to large capacity data;    extracting a key code in a registration confirmation signal inputted from the large capacity data sales server to encrypt and store it; and    decoding the key code and using said large capacity data by using the key code.    
     
     
         61 . The computer-readable recording medium according to claim  60 , recording a program for further implementing the steps of: 
 sending to said large capacity data sales server a deregistration request signal for requesting deregistration; and    in the case of receiving a deregistration confirmation signal from the large capacity data sales server, erasing said stored key code.    
     
     
         62 . A computer-readable recording medium recording a program for implementing the steps of: 
 sending to a large capacity data sales mediation server a registration request signal including an online access code unique to large capacity data;    extracting a key code in a registration confirmation signal inputted from the large capacity data sales mediation server to encrypt and store it; and    decoding the key code and using said large capacity data by using the key code.    
     
     
         63 . The computer-readable recording medium according to claim  62 , recording a program for further implementing the steps of: 
 sending to said large capacity data sales mediation server a deregistration request signal for requesting deregistration; and    in the case of receiving the deregistration confirmation signal from said large capacity data sales mediation server, erasing said stored key code.