EP 1797717 A1 20070620 - DIGITAL RIGHTS MANAGEMENT CONVERSION METHOD AND APPARATUS
Title (en)
DIGITAL RIGHTS MANAGEMENT CONVERSION METHOD AND APPARATUS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR UMSETZUNG DER VERWALTUNG DIGITALER RECHTE
Title (fr)
PROCEDE ET DISPOSITIF DE CONVERSION DE GESTION DE DROITS ELECTRONIQUES
Publication
Application
Priority
- KR 2005003188 W 20050926
- US 61662604 P 20041008
- KR 20040090758 A 20041109
Abstract (en)
[origin: WO2006080650A1] A digital rights management (DRM) conversion method and apparatus are provided. The DRM conversion method includes: (a) obtaining a first content key for the first content and a second content key for the second content through reciprocal authentication between a DRM conversion apparatus and a DRM conversion server, the DRM conversion apparatus converting the first content into the second content; and (b) converting the first content into the second content wherein the DRM conversion apparatus is disconnected from the DRM conversion server. Accordingly, it is possible to transmit content between devices using different DRM systems even offline with the use of a conversion manager (CM) that performs authentication and DRM conversion operations.
IPC 8 full level
H04N 5/00 (2011.01); H04N 7/167 (2011.01); H04N 7/173 (2006.01)
CPC (source: EP)
H04N 7/1675 (2013.01); H04N 21/43607 (2013.01); H04N 21/4367 (2013.01); H04N 21/4405 (2013.01); H04N 21/4408 (2013.01); H04N 21/4623 (2013.01); H04N 21/835 (2013.01)
Citation (search report)
See references of WO 2006080650A1
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
DOCDB simple family (application)
KR 2005003188 W 20050926; EP 05856370 A 20050926