(19)
(11) EP 1 720 354 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
08.08.2012 Bulletin 2012/32

(45) Mention of the grant of the patent:
11.04.2012 Bulletin 2012/15

(21) Application number: 05710168.5

(22) Date of filing: 14.02.2005
(51) International Patent Classification (IPC): 
H04N 7/24(2011.01)
G06T 1/00(2006.01)
 H04N 1/387(2006.01)
(86) International application number:
PCT/JP2005/002166
(87) International publication number:
WO 2005/079072 (25.08.2005 Gazette 2005/34)

(54)

ELECTRONIC WATERMARKING METHOD, ELECTRONIC WATERMARK DETECTING METHOD, APPARATUS AND PROGRAM

ELEKTRONISCHES WASSERZEICHENVERFAHREN, ELEKTRONISCHES WASSERZEICHENDETEKTIONSVERFAHREN, VORRICHTUNG UND PROGRAMM

METHODE DE FILIGRANAGE ELECTRONIQUE, METHODE, APPAREIL ET PROGRAMME DE DETECTION DE FILIGRANAGE ELECTRONIQUE

(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 17.02.2004 JP 2004040331

(43) Date of publication of application:
08.11.2006 Bulletin 2006/45

(73) Proprietors:
  • Mitsubishi Electric Corporation
    Chiyoda-ku Tokyo 100-8310 (JP)
  • NIPPON HOSO KYOKAI
    Tokyo 150-8001 (JP)

(72) Inventors:
  • FUJII, Ryousuke c/o Mitsubishi Denki K. K.
    Chiyoda-ku, Tokyo 1008310 (JP)
  • ITO, Hiroshi c/o Mitsubishi Denki K. K.
    Chiyoda-ku, Tokyo 1008310 (JP)
  • MAGAI, Kouichi c/o Mitsubishi Denki K. K.
    Chiyoda-ku, Tokyo 1008310 (JP)
  • SUZUKI, Mitsuyoshi c/o Mitsubishi Denki K. K.
    Chiyoda-ku, Tokyo 1008310 (JP)
  • WADA, Minoru c/o Mitsubishi Denki K. K.
    Chiyoda-ku, Tokyo 1008310 (JP)
  • OHTAKE, Go c/o NHK Science & Technical Res. Lab.
    Setagaya-ku, Tokyo 1578510 (JP)
  • GOSHI, Seiichi c/o NHK Science & Techn. Res. Lab.
    Setagaya-ku, Tokyo 1578510 (JP)

(74) Representative: Pfenning, Meinig & Partner GbR 
Patent- und Rechtsanwälte Theresienhöhe 13
80339 München
80339 München (DE)


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    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).