Invention Grant
- Patent Title: Optical disk apparatus
- Patent Title (中): 光盘装置
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Application No.: US11709754Application Date: 2007-02-23
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Publication No.: US07660212B2Publication Date: 2010-02-09
- 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: Morgan, Lewis & Bockius LLP
- Priority: JPP2006-057351 20060303
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
An optical disk apparatus includes: a servo controller, operable to carry out a servo control of tracking of an optical pickup based on a tracking error signal; a TE balance regulator, operable to detect a TE balance correction value for equalizing, with a reference voltage, a central voltage of the tracking error signal when a beam spot of the optical pickup crosses a track; a detrack regulator, operable to detect a detrack correction value for causing signal quality of an output of the optical pickup to be the highest; and a TE offset corrector, operable to set an offset voltage, which is to be added to the tracking error signal, to be the TE balance correction value when a difference between the TE balance correction value and the detrack correction value is smaller than a predetermined value, and to set the offset voltage to be a value between the TE balance correction value and the detrack correction value when the difference is greater than the predetermined value.
Public/Granted literature
- US20070206457A1 Optical disk apparatus Public/Granted day:2007-09-06
Information query
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