发明名称 |
Optical disk drive, optical disk, security control method for optical disk drive, and security control program product for optical disk drive |
摘要 |
A security control method for an optical disk drive comprises a security information reading step and a security information-determining step. In the security information reading step, security information associated with data to be read is read from a plurality of locations on an optical disk. In the security information-determining step, correct security information is determined by comparing fragments of the security information read from the plurality of locations and then by selecting a security information fragment with the highest frequency. The correct security information is used in processing of the data to be read.
|
申请公布号 |
US2004114483(A1) |
申请公布日期 |
2004.06.17 |
申请号 |
US20030700100 |
申请日期 |
2003.11.03 |
申请人 |
SANYO ELECTRIC CO., LTD. |
发明人 |
KANEKO YUTAKA |
分类号 |
G11B20/10;G11B7/005;G11B7/007;G11B7/013;G11B20/00;G11B20/12;G11B23/28;(IPC1-7):G11B7/00 |
主分类号 |
G11B20/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|