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Electronic watermark embedding apparatus, electronic watermark embedding method, record medium having electronic watermark and manufacturing method of record medium App 20040022412 - Iwamura, Hiroshi ;   et al. | 2004-02-05 |
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Information sending method and information sending apparatus, information receiving apparatus and information receiving method, information transmission system and information transmission method, and information recording medium App 20020027991 - Kuroda, Kazuo ;   et al. | 2002-03-07 |
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Method and apparatus for superposing a digital watermark and method and apparatus for detecting a digital watermark App 20020015509 - Nakamura, Takeshi ;   et al. | 2002-02-07 |
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Information outputting apparatus and information outputting method, information recording apparatus and information recording method, information outputting recording system and information recording medium App 20010052078 - Kuroda, Kazuo ;   et al. | 2001-12-13 |
Information distributing apparatus and method, information recording medium, and information recording apparatus and method App 20010036268 - Kuroda, Kazuo ;   et al. | 2001-11-01 |
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Information record medium wherein navigation information is recorded, apparatus for recording information including navigation information and apparatus for reproducing information according to navigation information App 20010014209 - Moriyama, Yoshiaki ;   et al. | 2001-08-16 |
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