发明名称 |
Information processing apparatus enabling electronic watermarking, and communication network connectable to such information processing apparatus |
摘要 |
In order to protect the copyright of data in accordance with the intent of a copyright holder, an arbitrary timing can be set for the application of an electronic watermark to data. For example, a data registration timing, a data communication timing or a data output timing can be arbitrarily selected.
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申请公布号 |
US6980668(B1) |
申请公布日期 |
2005.12.27 |
申请号 |
US19990409347 |
申请日期 |
1999.09.30 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
NAITO KIKUO;NOGUCHI TOSHIYUKI |
分类号 |
H04N1/387;G06F3/12;G06F13/00;G06K9/00;G06T1/00;G09C5/00;(IPC1-7):G06K9/00 |
主分类号 |
H04N1/387 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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