发明名称 |
Optical disk reproducing apparatus for compensating for tracking error by using real-time repetitive control and method of driving optical disk reproducing apparatus |
摘要 |
An optical disk reproducing apparatus for compensating for a tracking error by using a real-time repetitive control and a method of driving the optical reproducing apparatus are provided. The optical disk reproducing apparatus repetitively compensates for the tracking error in a real time and with high resolution in accordance with the tracking error frequency by using a sampling frequency obtained by performing frequency multiplication on a disk rotation detection signal, corresponding to one rotation of a disk, without initially compensating the tracking error by using tracking error signals in one or several disk rotations. Accordingly, it is possible to cope with a frequency change of the tracking error due to a rotational frequency difference between inner and outer circumferences in a CLV mode or a rotational frequency change generated when the speed changes in a CAV mode. In addition, it is possible to stably compensate for the tracking error without additionally compensating for a phase or gain.
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申请公布号 |
US2005018557(A1) |
申请公布日期 |
2005.01.27 |
申请号 |
US20040863919 |
申请日期 |
2004.06.09 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM JEONG-HUN |
分类号 |
G11B7/00;G11B7/09;G11B7/095;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/00 |
代理机构 |
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地址 |
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