JP2002373431A5 - - Google Patents

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Publication number
JP2002373431A5
JP2002373431A5 JP2001181032A JP2001181032A JP2002373431A5 JP 2002373431 A5 JP2002373431 A5 JP 2002373431A5 JP 2001181032 A JP2001181032 A JP 2001181032A JP 2001181032 A JP2001181032 A JP 2001181032A JP 2002373431 A5 JP2002373431 A5 JP 2002373431A5
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JP
Japan
Prior art keywords
gain
error signal
focusing
amplitude
recording layer
Prior art date
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Pending
Application number
JP2001181032A
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English (en)
Japanese (ja)
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JP2002373431A (ja
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Publication date
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Priority to JP2001181032A priority Critical patent/JP2002373431A/ja
Priority claimed from JP2001181032A external-priority patent/JP2002373431A/ja
Publication of JP2002373431A publication Critical patent/JP2002373431A/ja
Publication of JP2002373431A5 publication Critical patent/JP2002373431A5/ja
Pending legal-status Critical Current

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JP2001181032A 2001-06-15 2001-06-15 フォーカシング方法、及びそれを用いた光ディスク装置 Pending JP2002373431A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001181032A JP2002373431A (ja) 2001-06-15 2001-06-15 フォーカシング方法、及びそれを用いた光ディスク装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001181032A JP2002373431A (ja) 2001-06-15 2001-06-15 フォーカシング方法、及びそれを用いた光ディスク装置

Publications (2)

Publication Number Publication Date
JP2002373431A JP2002373431A (ja) 2002-12-26
JP2002373431A5 true JP2002373431A5 (enExample) 2005-06-02

Family

ID=19021362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001181032A Pending JP2002373431A (ja) 2001-06-15 2001-06-15 フォーカシング方法、及びそれを用いた光ディスク装置

Country Status (1)

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JP (1) JP2002373431A (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200501123A (en) * 2003-04-18 2005-01-01 Matsushita Electric Industrial Co Ltd Compact disc controller
US7800987B2 (en) 2003-10-03 2010-09-21 Panasonic Corporation Optical pickup driving apparatus and optical pickup beam spot positioning method
EP1758106B8 (en) 2004-05-28 2012-04-18 Panasonic Corporation Optical disc apparatus
JP4569812B2 (ja) * 2004-11-30 2010-10-27 ソニー株式会社 光ディスク装置、光ディスク装置の焦点位置制御方法及び焦点位置制御装置

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