JP4831928B2 - フォーカス制御装置、記録媒体および光ディスク再生装置 - Google Patents

フォーカス制御装置、記録媒体および光ディスク再生装置 Download PDF

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Publication number
JP4831928B2
JP4831928B2 JP2003350437A JP2003350437A JP4831928B2 JP 4831928 B2 JP4831928 B2 JP 4831928B2 JP 2003350437 A JP2003350437 A JP 2003350437A JP 2003350437 A JP2003350437 A JP 2003350437A JP 4831928 B2 JP4831928 B2 JP 4831928B2
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Japan
Prior art keywords
objective lens
signal
focus
error signal
focus error
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Expired - Fee Related
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JP2003350437A
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Japanese (ja)
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JP2005129089A (ja
JP2005129089A5 (enExample
Inventor
俊和 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Interactive Entertainment Inc
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Sony Interactive Entertainment Inc
Sony Computer Entertainment Inc
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Application filed by Sony Interactive Entertainment Inc, Sony Computer Entertainment Inc filed Critical Sony Interactive Entertainment Inc
Priority to JP2003350437A priority Critical patent/JP4831928B2/ja
Publication of JP2005129089A publication Critical patent/JP2005129089A/ja
Publication of JP2005129089A5 publication Critical patent/JP2005129089A5/ja
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Publication of JP4831928B2 publication Critical patent/JP4831928B2/ja
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JP2003350437A 2000-03-03 2003-10-09 フォーカス制御装置、記録媒体および光ディスク再生装置 Expired - Fee Related JP4831928B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003350437A JP4831928B2 (ja) 2000-03-03 2003-10-09 フォーカス制御装置、記録媒体および光ディスク再生装置

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000059345 2000-03-03
JP2000059345 2000-03-03
JP2003350437A JP4831928B2 (ja) 2000-03-03 2003-10-09 フォーカス制御装置、記録媒体および光ディスク再生装置

Related Parent Applications (1)

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JP2001053801A Division JP2001319344A (ja) 2000-03-03 2001-02-28 フォーカス制御装置、記録媒体および光ディスク再生装置

Publications (3)

Publication Number Publication Date
JP2005129089A JP2005129089A (ja) 2005-05-19
JP2005129089A5 JP2005129089A5 (enExample) 2008-04-10
JP4831928B2 true JP4831928B2 (ja) 2011-12-07

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JP2003350437A Expired - Fee Related JP4831928B2 (ja) 2000-03-03 2003-10-09 フォーカス制御装置、記録媒体および光ディスク再生装置

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JP (1) JP4831928B2 (enExample)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0736228B2 (ja) * 1987-03-30 1995-04-19 松下電器産業株式会社 自動焦点引き込み制御装置
JPH02223023A (ja) * 1989-02-23 1990-09-05 Matsushita Electric Ind Co Ltd 焦点引き込み装置
JPH07192275A (ja) * 1993-12-27 1995-07-28 Canon Inc 光学的情報記録再生装置
JPH1139665A (ja) * 1997-07-15 1999-02-12 Pioneer Electron Corp 多層光記録媒体用フォーカス制御装置
JP3758347B2 (ja) * 1997-12-25 2006-03-22 三菱電機株式会社 光ディスク装置におけるフォーカシング装置
JP2000011389A (ja) * 1998-06-16 2000-01-14 Fujitsu Ltd フォーカス制御方法及び記録媒体

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JP2005129089A (ja) 2005-05-19

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