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 代理人
主权项
地址