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VERFAHREN UND VORRICHTUNG ZUM EINBETTEN UND EXTRAHIEREN VON WASSERZEICHENINFORMATIONEN

Watermarking of audio and video data signals using a signal synchronization device so that a combined information and watermark signal can be transmitted, and also extraction of an information signal from a watermarked signal.
 
: Neubauer, C.; Herre, J.; Kulessa, R.; Siebenhaar, F.; Spinnler, W.

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DE 2002-10216261 A: 20020412
EP 2003-706575 AW: 20030225
WO 2003-EP1914 A: 20030225
DE 2002-10216261 A: 20020412
DE 10216261 A1: 20031106
EP 1495445 A1: 20050112
G06T0001
H04L0009
German
Patent, Electronic Publication
Fraunhofer IIS ()

Abstract
WO2003088146 A UPAB: 20031128 NOVELTY - Device for embedding watermark information (16) in an information signal (21) that contains audio and or video data comprises: a device (10, 12, 14) for provision of a synchronization sequence; a combination device (18) for generation of a combination sequence with a multiplicity of combination sequence units from the synchronization sequence and the phase shifted data sequence; and a device (20) for combined transmission of a combination sequence and the data signal, in order to embed the watermark information in the information signal. DETAILED DESCRIPTION - The invention also relates to a corresponding method for embedding watermark information as well as a device and method for extraction of watermark information from the signal. USE - Watermarking of audio and video data signals. ADVANTAGE - The invention provides a high data transfer rate.

: http://publica.fraunhofer.de/documents/N-44191.html