发明名称 |
Recordable storage medium with protected data area. |
摘要 |
A cryptographic summary of the system data stored in recordable data area (4), is generated using a hash function and stored in the fixed data area (2). The generated cryptographic summary is used for verification of the system data before reading/recording user data. Independent claims are also included for the following: (a) Recording medium with recordable data area and read only fixed data area; (b) Recording apparatus for storing data on a rewritable data storage medium; (c) Playback apparatus for playback of user data stored on a rewritable data storage medium. |
申请公布号 |
ZA200200897(B) |
申请公布日期 |
2003.04.30 |
申请号 |
ZA20020000897 |
申请日期 |
2002.01.31 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
JOHAN P M G LINNARTZ;JOHAN C TALSTRA;ANTONIUS A C M KALKER |
分类号 |
H04N5/91;G06F21/64;G06F21/80;G11B20/00;G11B20/10;G11B20/12;H04L9/32 |
主分类号 |
H04N5/91 |
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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