Rights management system for streamed multimedia content

US8290874B2 · kind B2 · utility

Assignee

• Microsoft Corporation · US

Inventors

• Brian P. Evans · Redmond, US
• Clifford P. Strom · Sammamish, US
• Daniel Rosenstein · Seattle, US

Key dates

• Filing date: Apr 22, 2005
• Grant date: Oct 16, 2012
• Expiry date: May 8, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q10/06
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

A computing device segregates licenses for corresponding content according to relatively short lived licenses for relatively short lived content and relatively long lived licenses for relatively long lived content. The computing device stores the relatively short lived licenses in a more temporary and volatile license store, and the relatively long lived licenses in a more permanent and non-volatile license store. Thus, the relatively short lived licenses are deleted when the temporary license store is turned off and do not create disorder in the permanent license store.