发明公开
EP2104100A2 Information recording medium for recording a scrambled part of content information, and method and apparatus for reproducing information recorded therein
审中-公开
用于再现信息的信息记录介质，用于记录的内容信息的加密部分，和方法和装置在其上记录
- 专利标题： Information recording medium for recording a scrambled part of content information, and method and apparatus for reproducing information recorded therein
- 专利标题（中）： 用于再现信息的信息记录介质，用于记录的内容信息的加密部分，和方法和装置在其上记录
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申请号： EP09164909.5申请日： 2000-09-13
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公开(公告)号： EP2104100A2公开(公告)日： 2009-09-23
- 发明人: Yumiba, Takashi , Ishihara, Hideshi , Fukushima, Yoshihisa , Tatebayashi, Makoto , Yokota, Kaoru
- 申请人： Panasonic Corporation
- 申请人地址： 1006, Oaza Kadoma Kadoma-shi Osaka 571-8501 JP
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： 1006, Oaza Kadoma Kadoma-shi Osaka 571-8501 JP
- 代理机构： Unland, Jochen Hermann
- 优先权： JP28007599 19990930
- 主分类号： G11B20/00
- IPC分类号： G11B20/00 ; G11B20/12 ; G06F1/00
摘要：
An information recording medium, such as an optical disk or the like, is provided for recording at least copyrighted content information and cipher key information. A part of the content information is scrambled and recorded in the information recording medium, and the scrambled and recorded part of the content information is obtained through scrambling using scramble key information, which is obtained by converting the cipher key information by the use of a non-scrambled part of the content information. The information recording medium has a recording area divided into a plurality of sectors. A plurality of data which the content information is divided into is recorded in the sectors. The non-scrambled part of the content information includes copy control information and a part of the content information that changes sector by sector.
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