JPH0439815U - - Google Patents

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Publication number
JPH0439815U
JPH0439815U JP7933290U JP7933290U JPH0439815U JP H0439815 U JPH0439815 U JP H0439815U JP 7933290 U JP7933290 U JP 7933290U JP 7933290 U JP7933290 U JP 7933290U JP H0439815 U JPH0439815 U JP H0439815U
Authority
JP
Japan
Prior art keywords
comparator
error signal
focus
focus error
focus servo
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7933290U
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English (en)
Japanese (ja)
Other versions
JP2523866Y2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP7933290U priority Critical patent/JP2523866Y2/ja
Publication of JPH0439815U publication Critical patent/JPH0439815U/ja
Application granted granted Critical
Publication of JP2523866Y2 publication Critical patent/JP2523866Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP7933290U 1990-07-27 1990-07-27 フォーカスサーボ引込装置 Expired - Lifetime JP2523866Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7933290U JP2523866Y2 (ja) 1990-07-27 1990-07-27 フォーカスサーボ引込装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7933290U JP2523866Y2 (ja) 1990-07-27 1990-07-27 フォーカスサーボ引込装置

Publications (2)

Publication Number Publication Date
JPH0439815U true JPH0439815U (enrdf_load_stackoverflow) 1992-04-03
JP2523866Y2 JP2523866Y2 (ja) 1997-01-29

Family

ID=31623396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7933290U Expired - Lifetime JP2523866Y2 (ja) 1990-07-27 1990-07-27 フォーカスサーボ引込装置

Country Status (1)

Country Link
JP (1) JP2523866Y2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04162218A (ja) * 1990-10-26 1992-06-05 Nec Corp 光ディスク装置のフォーカスサーチ方式及び光ディスク装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04162218A (ja) * 1990-10-26 1992-06-05 Nec Corp 光ディスク装置のフォーカスサーチ方式及び光ディスク装置

Also Published As

Publication number Publication date
JP2523866Y2 (ja) 1997-01-29

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term