Method of preventing reduction of sales amount of records due to a digital music file illegally distributed through communication network
US7434267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2001 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Jul 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/101
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.