Invention Grant
US07729215B2 Optical disc drive apparatus and servo control method for optical disc drive apparatus
失效
用于光盘驱动装置的光盘驱动装置和伺服控制方法
- Patent Title: Optical disc drive apparatus and servo control method for optical disc drive apparatus
- Patent Title (中): 用于光盘驱动装置的光盘驱动装置和伺服控制方法
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Application No.: US11880481Application Date: 2007-07-20
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Publication No.: US07729215B2Publication Date: 2010-06-01
- Inventor: Yuichi Suzuki
- Applicant: Yuichi Suzuki
- Applicant Address: JP
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: JPP2006-207035 20060728
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
An optical disc drive apparatus may include an optical pickup that moves along a transportation shaft provided along a radial direction of an optical disc and picks up reflected light after emitting an optical beam via an objective lens to the optical disc; a drive section that controls the objective lens to adjust an angle of the optical beam; an angular velocity detection section that detects an angular velocity around the transportation shaft; storage means for storing coefficients from which the skew of the optical disc around a virtual axis perpendicular to the transportation shaft is calculated using the angular velocity; a skew estimation section that calculates a skew estimate value by multiplying the coefficient by the angular velocity; and a drive signal generation section that generates a drive signal based on the skew estimate value to enable the drive section to adjust the angle of the optical beam.
Public/Granted literature
- US20080025163A1 Optical disc drive apparatus and servo control method for optical disc drive apparatus Public/Granted day:2008-01-31
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