发明名称 |
Optical Disk Apparatus with an Improved Track Jump Performance |
摘要 |
An optical disk device for recording or reproducing an optical disk has: an objective lens for irradiating a laser beam to the optical disk; an actuator for moving the objective lens in the radial direction of the optical disk; and a spindle motor for rotating the optical disk. After the laser beam irradiated to the optical disk passed through a PID portion of the optical disk, the actuator moves the objective lens in the radial direction of the optical disk at a timing corresponding to a rotational speed. Between signals to drive the actuator, an output time of a deceleration signal is set to a predetermined ratio of a time during which an acceleration signal is outputted. While the deceleration signal is outputted, a light spot passes through the PID portion.
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申请公布号 |
US2011096649(A1) |
申请公布日期 |
2011.04.28 |
申请号 |
US20110987778 |
申请日期 |
2011.01.10 |
申请人 |
HITACHI, LTD.;HITACHI-LG DATA STORAGE, INC. |
发明人 |
KATAOKA TAKEYOSHI;SUZUKI MOTOYUKI |
分类号 |
G11B19/00 |
主分类号 |
G11B19/00 |
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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