Method and apparatus for processing usage rights expressions
US7359884B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2003 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Feb 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/1073
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for processing a rights expression for association with an item for use in a system for controlling use of the item in accordance with the rights expression. A rights expression is specified in a conventional manner in an original format. An intermediate format of the rights expression is generated based on at least one of syntax information and semantics information associated with the original format. The rights expression specifies a manner of use of said item for enforcement on a device. The intermediate format can be converted to a device specific format or a simplified format for resource constrained devices to permit rights enforcement on various devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.