Patent · US Active

Extending the DRM realm to external devices

US8166300B2 · kind B2 · utility

4Cited by

3References

23Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Ulf Bjorkengren · Bjärred, SE
Per St{dot over (a)}hl · Klagshamn, SE
Magnus Olsson · Uppsala, SE

Key dates

Filing date	May 8, 2007
Grant date	Apr 24, 2012
Priority date	—
Expiry date	Dec 22, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/2129
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Disclosed is a method and a system for rendering content on external devices securely. The method comprises setting up a communication channel between a proxy rendering server of a mobile device and an external rendering server of an external device, authenticating at least the external rendering server and upon successful authentication transferring a key from the proxy rendering server to the external rendering server, transferring the content encrypted with the transferred key from the proxy rendering server to the external rendering server for rendering the content, wherein the rendering of the content is performed in one of two modes, either in a preprocessing mode or in a non-preprocessing mode, and wherein a DRM agent is only present in the mobile device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.