Invention Grant
- Patent Title: Optical disk device
- Patent Title (中): 光盘装置
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Application No.: US13482172Application Date: 2012-05-29
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Publication No.: US08477574B2Publication Date: 2013-07-02
- Inventor: Futoshi Takeda
- Applicant: Futoshi Takeda
- Applicant Address: JP Osaka
- Assignee: Funai Electric Co., Ltd.
- Current Assignee: Funai Electric Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JP2011-127525 20110607
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
An optical disk device is configured such that when an optical disk including three or more recording layers on one side is inserted into the optical disk device, a movable lens position adjustment device performs adjustment using as an index a tracking error signal provided with a limit to an amount of movement of a movable lens for spherical aberration correction at start-up of the optical disk device and sets an upper limit to the number of retries of the adjustment at the recording layer farthest away from the side on which the laser beam is incident to 1 or more.
Public/Granted literature
- US20120314550A1 OPTICAL DISK DEVICE Public/Granted day:2012-12-13
Information query
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