Invention Grant
- Patent Title: Optical disk drive
- Patent Title (中): 光盘驱动器
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Application No.: US11488616Application Date: 2006-07-19
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Publication No.: US07933175B2Publication Date: 2011-04-26
- Inventor: Seiji Imagawa
- Applicant: Seiji Imagawa
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Hitachi, Ltd.,Hitachi-LG Data Storage, Inc.
- Current Assignee: Hitachi, Ltd.,Hitachi-LG Data Storage, Inc.
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2005-267860 20050915
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
In an optical disc drive that needs an aberration correcting element for correcting spherical aberrations, it takes long time to conduct a processing operation of the aberration correcting element in an interlayer movement of a multilayer disc and a drive initializing operation. In order to eliminate the problem, an optical disc drive using a pickup includes a focus actuator for moving an objective lens in a rotation axis direction of a disc, a tracking actuator for moving the objective lens in a radial direction of the disc, an aberration corrector for correcting aberrations, and a feeder for moving the pickup in the disc radial direction. A control operation of the aberration corrector and a control operation of the feeder are conducted in parallel.
Public/Granted literature
- US20070177469A1 Optical disk drive Public/Granted day:2007-08-02
Information query
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