JPH0419628B2 - - Google Patents

Info

Publication number
JPH0419628B2
JPH0419628B2 JP7915283A JP7915283A JPH0419628B2 JP H0419628 B2 JPH0419628 B2 JP H0419628B2 JP 7915283 A JP7915283 A JP 7915283A JP 7915283 A JP7915283 A JP 7915283A JP H0419628 B2 JPH0419628 B2 JP H0419628B2
Authority
JP
Japan
Prior art keywords
signal
actuator
recorded information
output
position signal
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.)
Expired
Application number
JP7915283A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59203277A (ja
Inventor
Katsumi Kawamura
Junichi Nakada
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP7915283A priority Critical patent/JPS59203277A/ja
Publication of JPS59203277A publication Critical patent/JPS59203277A/ja
Publication of JPH0419628B2 publication Critical patent/JPH0419628B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
JP7915283A 1983-05-04 1983-05-04 記録情報読取装置 Granted JPS59203277A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7915283A JPS59203277A (ja) 1983-05-04 1983-05-04 記録情報読取装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7915283A JPS59203277A (ja) 1983-05-04 1983-05-04 記録情報読取装置

Publications (2)

Publication Number Publication Date
JPS59203277A JPS59203277A (ja) 1984-11-17
JPH0419628B2 true JPH0419628B2 (fr) 1992-03-31

Family

ID=13681984

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7915283A Granted JPS59203277A (ja) 1983-05-04 1983-05-04 記録情報読取装置

Country Status (1)

Country Link
JP (1) JPS59203277A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06325392A (ja) * 1992-03-02 1994-11-25 Nippon Columbia Co Ltd ディスク再生装置

Also Published As

Publication number Publication date
JPS59203277A (ja) 1984-11-17

Similar Documents

Publication Publication Date Title
GB2125187A (en) Tracking-servo device
JPH0121552B2 (fr)
JPH01102783A (ja) トラックジャンプ回路
JPS59229773A (ja) 記録情報読取装置
US3947881A (en) Servo positioning error control for magnetic disk file
US5760991A (en) Disk storage unit positioning control for applying DC offsets to a tracking error
JPH0419628B2 (fr)
JP3153928B2 (ja) 信号再生装置
JPH06139594A (ja) 光ピックアップの駆動制御装置
JPS62273611A (ja) 垂直磁気記録媒体のヘツド読出し信号処理回路
JPH0322674B2 (fr)
JPH0725856Y2 (ja) Ｃｄプレーヤの低域発振防止回路
JP2001023186A (ja) デジタル方式定電流制御回路
JPS6215902Y2 (fr)
JPS61187172A (ja) デイスク再生装置のトラツキングサ−ボ回路
JP2606385B2 (ja) ディジタル制御装置
JPS61276133A (ja) トラツク飛び越し制御回路
JPH0525063Y2 (fr)
JPH0725855Y2 (ja) 光学式ディスクプレーヤの低域発振防止回路
JPS61170936A (ja) 制御装置
JPS62154327A (ja) アクチユエ−タ装置
JPS6312410Y2 (fr)
JPH01220231A (ja) トラッキングサーボのゲイン調整装置
JPS63271729A (ja) 光学式デイスクプレ−ヤのフオ−カスサ−ボ回路
JPS5942673A (ja) 情報検出点位置制御のためのサ−ボ装置