EP 1690367 A2 20060816 - SYSTEM AND METHOD FOR USING DRM TO CONTROL CONDITIONAL ACCESS TO BROADBAND DIGITAL CONTENT
Title (en)
SYSTEM AND METHOD FOR USING DRM TO CONTROL CONDITIONAL ACCESS TO BROADBAND DIGITAL CONTENT
Title (de)
SYSTEM UND VERFAHREN ZUR VERWENDUNG VON DRM ZUR STEUERUNG DES BEDINGTEN ZUGRIFFS AUF BREITBAND-DIGITALINHALT
Title (fr)
SYSTEME ET PROCEDE D'UTILISATION DE LA GESTION DES DROITS NUMERIQUES POUR REGULER L'ACCES CONDITIONNEL A DES CONTENUS NUMERIQUES A LARGE BANDE
Publication
Application
Priority
- IB 2004003687 W 20041110
- US 70544903 A 20031111
- US 93907804 A 20040909
Abstract (en)
[origin: WO2005045554A2] A system and method is disclosed for providing DRM in a broadcast environment. In accordance with the embodiment, a DRM system distributes encrypted service keys over the mobile telephone network to a mobile terminal. The mobile terminal receives the encrypted service key and uses it to decrypt encrypted content keys received from a DVB set top box. The decrypted content keys are sent to the set box over local link where they are used to decrypt encrypted broadcast content. A power management technique for mobile receivers is also disclosed that enables the receiver hardware to power off during a portion of the rendering process.
IPC 8 full level
H04L 9/32 (2006.01); H04M 3/42 (2006.01); H04N 5/00 (2011.01); H04N 7/16 (2011.01); H04N 7/167 (2011.01); H04N 7/173 (2011.01)
IPC 8 main group level
G06F (2006.01)
CPC (source: EP KR)
H04N 21/26606 (2013.01 - EP KR); H04N 21/41407 (2013.01 - EP KR); H04N 21/43637 (2013.01 - EP KR); H04N 21/4367 (2013.01 - EP KR); H04N 21/63345 (2013.01 - EP KR)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL HR LT LV MK YU
DOCDB simple family (publication)
WO 2005045554 A2 20050519; WO 2005045554 A3 20060323; AU 2004288307 A1 20050519; AU 2004288307 B2 20100422; EP 1690367 A2 20060816; EP 1690367 A4 20120215; JP 2007511946 A 20070510; KR 20060107806 A 20061016; KR 20080014929 A 20080214
DOCDB simple family (application)
IB 2004003687 W 20041110; AU 2004288307 A 20041110; EP 04798827 A 20041110; JP 2006538986 A 20041110; KR 20067011439 A 20060609; KR 20087002165 A 20080125