Information security – Prevention of unauthorized use of data including prevention... – Copy detection
Reexamination Certificate
2007-10-23
2007-10-23
Moazzami, Nasser (Department: 2136)
Information security
Prevention of unauthorized use of data including prevention...
Copy detection
C726S026000, C713S176000
Reexamination Certificate
active
10419840
ABSTRACT:
Additional information is embedded in document data by inputting document data, inputting additional information, and inputting image data. The additional information is embedded in the input image data using a first digital watermark method, and the additional information is embedded in the input document data using a second digital watermark method. The document data embedded with the additional information is composited with the image data embedded with the additional information, with the image data as a background image. In a case where an original document containing information embedded using the second digital watermark method is copied by a copying machine, the information embedded in the copied document cannot be detected. The first digital watermark method has a robustness such that, when an original document containing information embedded using the first digital watermark method is copied by a copying machine, information embedded in the copied document can be detected.
REFERENCES:
patent: 5467169 (1995-11-01), Morikawa
patent: 6233347 (2001-05-01), Chen et al.
patent: 6334187 (2001-12-01), Kadono
patent: 6396937 (2002-05-01), Chen et al.
patent: 6400826 (2002-06-01), Chen et al.
patent: 6535616 (2003-03-01), Hayashi et al.
patent: 6636615 (2003-10-01), Rhoads et al.
patent: 6785814 (2004-08-01), Usami et al.
patent: 6804779 (2004-10-01), Carroni et al.
patent: 6807285 (2004-10-01), Iwamura
patent: 7027179 (2006-04-01), Mori
patent: 2001/0055390 (2001-12-01), Hayashi et al.
patent: 2002/0172398 (2002-11-01), Hayashi
patent: 2002/0176116 (2002-11-01), Rhoads et al.
patent: 2002/0199106 (2002-12-01), Hayashi
patent: 2003/0059086 (2003-03-01), Hayashi
patent: 2005/0129270 (2005-06-01), Prakash
patent: 2614369 (1997-02-01), None
Moazzami Nasser
Reza Mohammad
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