发明授权
- 专利标题： Data production method and apparatus
- 专利标题（中）： 资料制作方法及装置
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申请号： US11634962申请日： 2006-12-07
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公开(公告)号： US07751587B2公开(公告)日： 2010-07-06
- 发明人: Osamu Kawamae , Eijiro Tazawa
- 申请人： Osamu Kawamae , Eijiro Tazawa
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： Hitachi, Ltd.,Hitachi-LG Data Storage, Inc.
- 当前专利权人： Hitachi, Ltd.,Hitachi-LG Data Storage, Inc.
- 当前专利权人地址： JP Tokyo JP Tokyo
- 代理机构： Antonelli, Terry, Stout & Kraus, LLP.
- 优先权： JP2006-031815 20060209; JP2006-261643 20060927
- 主分类号： G06K9/00
- IPC分类号： G06K9/00 ; H04L9/32
摘要：
A watermark information detection process prevents prolonging of time required for setup process when no watermark information can be detected from an optical disc where watermark information has been recorded. During a setup, the number of retrials is limited. Weighting of the retrial is changed so that detection of watermark information is performed when it is confirmed that watermark information is recorded. This enables detection of information for copyright protection in an appropriate processing time.
公开/授权文献
- US20070198842A1 Data production method and apparatus 公开/授权日：2007-08-23
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