发明名称 |
ELECTRONIC WATERMARK INFORMATION IDENTIFICATION DEVICE, DATA RECORDER, DATA REPRODUCING DEVICE, DATA OUTPUT DEVICE, DISTRIBUTION APPARATUS, ITS SYSTEM, INFORMATION ADDING APPARATUS, CONTENT DATA, AND PROGRAM |
摘要 |
<P>PROBLEM TO BE SOLVED: To protect copyright without performing a complicated processing in a data processing apparatus concerning digital content data to be distributed through a communication line. <P>SOLUTION: When digital music data is distributed, the distribution apparatus 11 of a distribution system 1 distributes digital music data by embedding in digital music data embedding data which indicates that the music data is to be distributed. A data reproducing device 12 reproduces digital music data received via a network N only when embedding data for indicating that the digital music data is the data for distribution is embedded. A data recorder 15 records digital music data received via the network N in a recording medium by a recording media drive 152 only when embedding data for indicating that the digital music data is the data to be distributed and also to be permitted in copying is embedded. <P>COPYRIGHT: (C)2004,JPO |
申请公布号 |
JP2004139252(A) |
申请公布日期 |
2004.05.13 |
申请号 |
JP20020301864 |
申请日期 |
2002.10.16 |
申请人 |
KENWOOD CORP |
发明人 |
FURUKAWA MASAMICHI;SONODA TAKEO |
分类号 |
G06F12/14;G06F15/00;G06F21/00;G06F21/24;G06T1/00;G09C5/00;G10L11/00;G11B20/10;H04N1/387 |
主分类号 |
G06F12/14 |
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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