JPS5773422A - Follow-up controller - Google Patents

Follow-up controller

Info

Publication number
JPS5773422A
JPS5773422A JP14957280A JP14957280A JPS5773422A JP S5773422 A JPS5773422 A JP S5773422A JP 14957280 A JP14957280 A JP 14957280A JP 14957280 A JP14957280 A JP 14957280A JP S5773422 A JPS5773422 A JP S5773422A
Authority
JP
Japan
Prior art keywords
signal
follow
mirror
tracking
phase
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.)
Pending
Application number
JP14957280A
Other languages
English (en)
Inventor
Masahiro Daimon
Kazuo Hirasawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14957280A priority Critical patent/JPS5773422A/ja
Publication of JPS5773422A publication Critical patent/JPS5773422A/ja
Pending 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
    • G11B7/0901—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 track following only

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Control Of Position Or Direction (AREA)
JP14957280A 1980-10-24 1980-10-24 Follow-up controller Pending JPS5773422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14957280A JPS5773422A (en) 1980-10-24 1980-10-24 Follow-up controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14957280A JPS5773422A (en) 1980-10-24 1980-10-24 Follow-up controller

Publications (1)

Publication Number Publication Date
JPS5773422A true JPS5773422A (en) 1982-05-08

Family

ID=15478114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14957280A Pending JPS5773422A (en) 1980-10-24 1980-10-24 Follow-up controller

Country Status (1)

Country Link
JP (1) JPS5773422A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286323A (ja) * 2007-05-18 2008-11-27 Isel Co Ltd 直動機構

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286323A (ja) * 2007-05-18 2008-11-27 Isel Co Ltd 直動機構

Similar Documents

Publication Publication Date Title
US3952191A (en) Controlled system for focussing a read-out light beam
US4531206A (en) Method and apparatus for detecting tracking error
JPS55150138A (en) Controller for light beam position
GB1483161A (en) Videodisc-tracking servo system
JPS56156924A (en) Track following device
JPS6240766B2 (ja)
US5146440A (en) Track search apparatus
US4482987A (en) Optical information reproducing apparatus
JP3356798B2 (ja) 光学式検出装置
JPS6448226A (en) Optical disk device
JPS5773422A (en) Follow-up controller
JPH0237578A (ja) 光学式記録および／または再生装置におけるアクセス速度検出装置
JPH0262773A (ja) トラック検索装置
JPH0652578B2 (ja) 情報再生方法
JPS5830263Y2 (ja) 光学式ディスク再生機の自動焦点深索装置
JPS59178654A (ja) 目標トラツク位置検索装置
JPS54102107A (en) Control information detecting method
JPH02105336A (ja) トラッキングサーボの方法
JPS558668A (en) Optical axis control unit of optical information reader
GB2155627A (en) Tracking error signal generating apparatus for an optical information recording/playback system
JPS57189587A (en) Controlling circuit for motor
JP2007507826A (ja) 光ディスクドライブ及びレンズ位置制御方法
US3329824A (en) Photoelectric print reading circuit
JPS5753840A (ja) Tsuisekisochi
JPS5746333A (en) Reproducing system of optical information