Digital rights management
US7472280B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 23, 2002 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | May 21, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/101
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of managing digital rights comprises the following steps. First, a physical electronic key containing a first activation code is provided to a requesting user. Second, locked digital content is provided to the requesting user. The digital content is encoded with a second activation code associated with the first activation code. Third, the locked digital content is received in a playing device that reads the first activation code and determines whether the first activation code is associated with the second activation code. Fourth, the playing device is enabled to unlock and play the digital content if the first activation code is associated with the second activation code. A digital right management system for implementing the foregoing method is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.