Invention Grant
- Patent Title: Optical disc drive and control method thereof
- Patent Title (中): 光盘驱动器及其控制方法
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Application No.: US11746113Application Date: 2007-05-09
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Publication No.: US07889606B2Publication Date: 2011-02-15
- Inventor: Kab Kyun Jeong
- Applicant: Kab Kyun Jeong
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Stanzione & Kim LLP
- Priority: KR10-2006-0070021 20060725
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
An optical disc drive and a control method thereof are disclosed to prevent unstable servo-control of a pickup module caused by an abnormal control signal, when recording/reproducing/erasing of information on/from an optical disc in the optical disc drive, and in particularly, possible collision between the pickup module and the optical disc, even when the pickup module very closely approaches the surface of the optical disc during recording/reproducing/erasing of information on/from a high density optical disc. The optical disc drive includes a pickup module having an objective lens focusing a laser on the surface of a recording layer of the optical disc, and a servo-controlling unit performing the focus servo-control of the pickup module using a high frequency broadband control and a low frequency broadband control of a focus error signal where the high frequency broadband control is performed prior to the frequency broadband control.
Public/Granted literature
- US20080025161A1 OPTICAL DISC DRIVE AND CONTROL METHOD THEREOF Public/Granted day:2008-01-31
Information query
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