发明名称 Copy protection by adding copy control information
摘要 <p>The recording medium has discrimination data (E-bit) indicating whether or not content data has been encrypted and recorded with copy control information data (CCI data) into the content data. If the content data whose copying is not permitted is reproduced, the discrimination data (E-bit) is read out from the content data, and then the read discrimination data (E-bit) is compared with encrypted state of the reproduced content data. If the discrimination data (E-bit) shows a state different from the current encrypted state of the content data, the apparatus prohibits the reproduction of the content data. &lt;IMAGE&gt;</p>
申请公布号 EP1067540(A2) 申请公布日期 2001.01.10
申请号 EP20000114448 申请日期 2000.07.05
申请人 PIONEER CORPORATION 发明人 SUZUKI, TOSHIO
分类号 G09C1/00;G06F12/14;G06F21/24;G09C5/00;G11B20/00;G11B20/10;(IPC1-7):G11B20/00 主分类号 G09C1/00
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