Methods for playing protected content
US8341424B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 2004 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | May 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/103
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One aspect of the present invention is a method of playing multi-media content through a personal computer. The personal computer includes a processor and memory, with the memory having software instructions stored therein. The processor executes the instructions to carry-out the method. The method includes: receiving data representing multi-media content at the personal computer; receiving at the personal computer an initial set of data representing a base set of usage rights that is associated with the multi-media content, wherein the initial set of data defines a first set of rights that is permissible without upgrading or renewing the base set of usage rights; and upon receiving a request to perform an action involving the multi-media content, checking the initial set of data representing the base set of usage rights to determine whether the action is permissible, and providing an option to a user through the personal computer to contact a remote computer to negotiate for an upgraded set of usage rights. The transmission of the multi-media content is among those actions that are not permissible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.