Loudeye Corporation

Chang-Young Lee

Cheol-Woong Lee

A method of preventing reduction of sales amount of records due to a digital music file illegally distributed through a communication network is disclosed. The method comprises a)collecting an illegally produced digital music file, which is derived from a record of a cooperating record corporation by searching the network, b)encrypting the collected digital music file with a predetermined key; and c)redistributing the encrypted digital music file through the network. According to present invention, the method collects the illegally produced(or reproduced) digital music file that is shared and distributed through the network, encrypts the collected music file, and enables only users having a private key to use the digital music files, thus inducing the users habitually using the digital music files to use them after paying a justifiable fee and being assigned the encryption key, and to purchase the formal record.

Method of preventing reduction of sales amount of records due to a digital music file illegally distributed through communication network

A system and method of sharing digital literary works while protecting against an illegal reproduction through a communication network is disclosed. The system comprises a data communication network, a list providing server, at least one agent server, at least one user terminal, a main server, at least one sub-server, a premise communication network, and a network interface unit. The system is advantageous in that it enables users to share digital literary works produced for publicity, works having a low quality, or encrypted digital literary works through the network against a distribution of illegally reproduced digital literary works having the same quality as original literary works through a Sharing Web, thus preventing a reduction of sales amounts of original literary works due to such illegal reproductions.

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Seoul, South Korea

Chang-Young Lee