发明名称 |
Copy protection system for optical discs |
摘要 |
A system for copy protection of record carriers for digital data is described according to which at least one predetermined repetitive bit pattern which encodes into channel bits having an accumulated digital sum value that exceeds a first predetermined limit and that is below a second predetermined limit is determined and recorded onto said record carrier by a mastering process so that said accumulated digital sum value which exceeds said first predetermined limit and is below said second predetermined limit is achieved in said at least one replaced and/or inserted part. <IMAGE>
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申请公布号 |
EP1355306(A1) |
申请公布日期 |
2003.10.22 |
申请号 |
EP20020008668 |
申请日期 |
2002.04.17 |
申请人 |
SONY DADC AUSTRIA AG |
发明人 |
REITER, GOTTFRIED |
分类号 |
G11B20/10;G11B7/007;G11B20/00;G11B20/12;G11B20/14;(IPC1-7):G11B20/00 |
主分类号 |
G11B20/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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