发明授权
US08406101B2 Optical disk drive and method for driving a feeding device of an optical disk drive
有权
光盘驱动器以及用于驱动光盘驱动器的馈送装置的方法
- 专利标题: Optical disk drive and method for driving a feeding device of an optical disk drive
- 专利标题(中): 光盘驱动器以及用于驱动光盘驱动器的馈送装置的方法
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申请号: US12275370申请日: 2008-11-21
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公开(公告)号: US08406101B2公开(公告)日: 2013-03-26
- 发明人: Chih-Ching Yu , Ying-Feng Huang , Yu-Chun Lin
- 申请人: Chih-Ching Yu , Ying-Feng Huang , Yu-Chun Lin
- 申请人地址: TW Hsin-Chu
- 专利权人: Mediatek Inc.
- 当前专利权人: Mediatek Inc.
- 当前专利权人地址: TW Hsin-Chu
- 代理机构: McClure, Qualey & Rodack, LLP
- 主分类号: G11B7/00
- IPC分类号: G11B7/00
摘要:
The invention provides an optical disk drive. In one embodiment, the optical disk drive comprises a feeding device, a power driver, and a controller. The feeding device comprises a spherical aberration (SA) lens and a stepping motor, wherein the SA lens corrects spherical aberration of a light beam emitted by a pickup head, and the stepping motor moves the SA lens according to a plurality of control signals. The power driver generates the control signals to drive the stepping motor to move the SA lens. The controller directs the power driver to drive the stepping motor to move the SA lens with only stable steps when the SA lens is required to move, so that the stepping motor is in a stable state without inducing step errors after the stepping motor rotates with the stable steps.