Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Security kernel or utility
Reexamination Certificate
2005-07-26
2005-07-26
Wright, Norman M. (Department: 2134)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Security kernel or utility
C382S100000
Reexamination Certificate
active
06922777
ABSTRACT:
In an information processing system having a plurality of information processing apparatuses connected through a network, at least one of the plurality of information processing apparatuses can add first additional information to input information as an electronic watermark using a first adding method, and can add second additional information to the input information as an electronic watermark using a second adding method. The first adding method has a higher robustness than the second adding method, and the first additional information can be used for identifying the second adding method.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Wright Norman M.
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