Protecting content on medium from unfettered distribution
US7281273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2002 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Nov 7, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/00847
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Digital content is encrypted according to a content key (CK) to form (CK(content)) and such (CK(content)), a license generator, a start-up file, and license-generating information are placed on a digital storage medium. The license generator is for generating a digital license corresponding to the placed content, where the generated license has the content key (CK) therein. The start-up file is read and executed when the medium is mounted to a computing device, and the executed start-up file executes the license generator The license generating information includes the content key (CK) and any terms, conditions, rules, and/or requirements to be built into the license.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.