Patent ID: 7222181
Filing Date: 2007-05-22
Classification: G06F,G06Q,H04L

Abstract:
1. A musical scores distributing system comprising a server and a client terminal that are communicable with each other, said server comprising: a database for storing a plurality of musical scores; musical scores transmitting means for transmitting at least one of the musical scores in said database to said client terminal in accordance with a request from said client terminal; and key file transmitting means for generating and transmitting a key file including identification data sent from said client terminal to said client terminal in accordance with a request from said client terminal, the key file controlling restriction on printing one or more musical scores transmitted to said client terminal, and said client terminal comprising: musical scores requesting means for sending a request for at least one of the musical scores stored in said database to said server; key file requesting means for sending a request of the key file and the identification data to said server, the identification data being generated when said client terminal sends the request of the key file to said server; a data memory for storing at least one of the musical scores and the key file transmitted from said server and for storing the identification data generated by said key file requesting means; print controlling means for controlling the restriction on printing at least one of the musical scores in said data memory, wherein said print controlling means compares the identification data of the key file sent from the server and stored in said data memory with the identification data generated by said key file requesting means and stored in said data memory and, if both the identification data are coincident with each other, generates a print releasing file for releasing the restriction on printing at least one of the musical scores and erases the key file stored in the data memory after generating the print releasing file.