EP 2414979 A2 20120208 - WATERMARKING METHOD AND SYSTEM
Title (en)
WATERMARKING METHOD AND SYSTEM
Title (de)
METHODE UND SYSTEM FÜR WASSERZEICHEN
Title (fr)
PROCÉDÉ ET SYSTÈME DE FILIGRANAGE
Publication
Application
Priority
- IB 2010001119 W 20100315
- CN 2009071086 W 20090331
Abstract (en)
[origin: WO2010113040A2] A method for collaboratively watermarking a media content available on a media server and produced by users in a first list of users, said media content comprising a first watermark embedded therein identifying the users of said first list of users, said method comprising, for an additional user that does not belong to the first list of users and modifies the media content, the acts of obtaining the modified media content and embedding by the media server into the modified media content a second watermark identifying a second list of users, said second list of users comprising the first list of users and the additional user.
IPC 8 full level
G06F 21/10 (2013.01)
CPC (source: EP US)
G06F 21/10 (2013.01 - EP US)
Citation (search report)
See references of WO 2010113040A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010113040 A2 20101007; WO 2010113040 A3 20101202; EP 2414979 A2 20120208
DOCDB simple family (application)
IB 2010001119 W 20100315; EP 10725498 A 20100315