Invention Grant
- Patent Title: Tilt control method of near-field optical system
- Patent Title (中): 近场光学系统的倾斜控制方法
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Application No.: US12785204Application Date: 2010-05-21
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Publication No.: US08050162B2Publication Date: 2011-11-01
- Inventor: Wei-Chih Lin , Ling-Hao Yu , Chen-I Kuo
- Applicant: Wei-Chih Lin , Ling-Hao Yu , Chen-I Kuo
- Applicant Address: TW Taipei
- Assignee: Lite-On It Corporation
- Current Assignee: Lite-On It Corporation
- Current Assignee Address: TW Taipei
- Agency: Rabin & Berdo, P.C.
- Priority: CN200910261458 20091215
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
A tilt control method for a near-field optical disc drive is provided. A gap between a lens and a disc is estimated. A tilt compensation for the lens is estimated according to a tilt signal when the lens is within a far-field region. A coarse tilt control is performed on the lens according to the tilt compensation when the lens is within the far-field region.
Public/Granted literature
- US20110141864A1 TILT CONTROL METHOD OF NEAR-FIELD OPTICAL SYSTEM Public/Granted day:2011-06-16
Information query
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