Title:
WATERMARK INCORPORATION
Document Type and Number:
WIPO Patent Application WO/2005/109702
Kind Code:
A1
Abstract:
The invention relates to an inventive method for introducing a watermark into an information signal, according to which said information signal (12) is converted from a temporal representation (22) into a spectral or modulation spectral representation (30). The information signal is then manipulated in the spectral or modulation spectral representation (30) in accordance with the watermark (14) that is to be introduced, to obtain a modified spectral or modulation spectral representation. Finally, a watermarked information signal (16) is formed based on the modified spectral or modulation spectral representation. One advantage of the inventive method is that as the watermark (14) is incorporated into or derived from the spectral or spectral modulation representation or domains, traditional correlation attacks that are used on watermarking methods based on spread spectrum modulation do not necessarily reach their target.
Inventors:
HERRE JUERGEN (DE)
KULESSA RALPH (DE)
DISCH SASCHA (DE)
LINZMEIER KARSTEN (DE)
NEUBAUER CHRISTIAN (DE)
SIEBENHAAR FRANK (DE)
KULESSA RALPH (DE)
DISCH SASCHA (DE)
LINZMEIER KARSTEN (DE)
NEUBAUER CHRISTIAN (DE)
SIEBENHAAR FRANK (DE)
Application Number:
PCT/EP2005/002636
Publication Date:
November 17, 2005
Filing Date:
March 11, 2005
Export Citation:
Assignee:
FRAUNHOFER GES FORSCHUNG (DE)
HERRE JUERGEN (DE)
KULESSA RALPH (DE)
DISCH SASCHA (DE)
LINZMEIER KARSTEN (DE)
NEUBAUER CHRISTIAN (DE)
SIEBENHAAR FRANK (DE)
HERRE JUERGEN (DE)
KULESSA RALPH (DE)
DISCH SASCHA (DE)
LINZMEIER KARSTEN (DE)
NEUBAUER CHRISTIAN (DE)
SIEBENHAAR FRANK (DE)
International Classes:
H04H20/31; (IPC1-7): H04H1/00; G10L19/00
Foreign References:
| US20020176353A1 | 2002-11-28 |
Other References:
THOMPSON J K ET AL: "A non-uniform modulation transform for audio coding with increased time resolution", 2003 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING. PROCEEDINGS. (ICASSP). HONG KONG, APRIL 6 - 10, 2003, IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP), NEW YORK, NY : IEEE, US, vol. VOL. 1 OF 6, 6 April 2003 (2003-04-06), pages V397 - V400, XP010639292, ISBN: 0-7803-7663-3
Attorney, Agent or Firm:
Schenk, Markus (ZIMMERMANN STÖCKELER & ZINKLE, Postfach 246 Pullach bei München, DE)
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