发明授权
- 专利标题： Information recording method and apparatus, information recording medium, and information recording medium manufacturing method and apparatus
- 专利标题（中）： 信息记录方法和装置，信息记录介质和信息记录介质的制造方法和装置
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申请号： US12677724申请日： 2008-04-21
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公开(公告)号： US08526281B2公开(公告)日： 2013-09-03
- 发明人: Kazuhiko Nakane
- 申请人： Kazuhiko Nakane
- 申请人地址： JP Tokyo
- 专利权人： Mitsubishi Electric Corporation
- 当前专利权人： Mitsubishi Electric Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2007-272417 20071019
- 国际申请： PCT/JP2008/057675 WO 20080421
- 国际公布： WO2009/050907 WO 20090423
- 主分类号： G11B11/00
- IPC分类号： G11B11/00
摘要：
Content information (CI) is recorded, and then control information including an encryption key is recorded. The area in which the content information (CI) is written is shifted with respect to the user area (UIA) in a playback-only disc. The control information (SI) is written with an identical shift. As a result of the shift, content information (CI) or dummy data (DD) is written in the area (SIA) in which control information is recorded in a playback-only disc. Information indicating the value of the shift is selected randomly and deleted when the disc is removed from the recording apparatus. When encrypted content is downloaded and recorded on a recordable optical disc, the complete content can be recorded on the disc correctly just once.
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