JPH0583970B2 - - Google Patents

Info

Publication number
JPH0583970B2
JPH0583970B2 JP59103808A JP10380884A JPH0583970B2 JP H0583970 B2 JPH0583970 B2 JP H0583970B2 JP 59103808 A JP59103808 A JP 59103808A JP 10380884 A JP10380884 A JP 10380884A JP H0583970 B2 JPH0583970 B2 JP H0583970B2
Authority
JP
Japan
Prior art keywords
level
disk
signal
light beam
tracking error
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 - Lifetime
Application number
JP59103808A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60247837A (ja
Inventor
Mitsutoshi Magai
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 Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP59103808A priority Critical patent/JPS60247837A/ja
Publication of JPS60247837A publication Critical patent/JPS60247837A/ja
Publication of JPH0583970B2 publication Critical patent/JPH0583970B2/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
    • G11B7/0946—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 specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions

Landscapes

  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP59103808A 1984-05-23 1984-05-23 光学デイスク記録装置 Granted JPS60247837A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59103808A JPS60247837A (ja) 1984-05-23 1984-05-23 光学デイスク記録装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59103808A JPS60247837A (ja) 1984-05-23 1984-05-23 光学デイスク記録装置

Publications (2)

Publication Number Publication Date
JPS60247837A JPS60247837A (ja) 1985-12-07
JPH0583970B2 true JPH0583970B2 (fr) 1993-11-30

Family

ID=14363695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59103808A Granted JPS60247837A (ja) 1984-05-23 1984-05-23 光学デイスク記録装置

Country Status (1)

Country Link
JP (1) JPS60247837A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6479942A (en) * 1987-09-21 1989-03-24 Toshiba Corp Information processor
JPH077528B2 (ja) * 1988-01-25 1995-01-30 キヤノン株式会社 光学式情報記録装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189840A (ja) * 1982-04-30 1983-11-05 Hitachi Ltd 光学的情報処理装置
JPS58208973A (ja) * 1982-05-31 1983-12-05 Hitachi Ltd 信号再生装置のサ−ボ回路
JPS5965946A (ja) * 1982-10-06 1984-04-14 Hitachi Ltd ビデオデイスクプレ−ヤ
JPS5977639A (ja) * 1982-10-25 1984-05-04 Hitachi Ltd 光ディスク記録再生方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189840A (ja) * 1982-04-30 1983-11-05 Hitachi Ltd 光学的情報処理装置
JPS58208973A (ja) * 1982-05-31 1983-12-05 Hitachi Ltd 信号再生装置のサ−ボ回路
JPS5965946A (ja) * 1982-10-06 1984-04-14 Hitachi Ltd ビデオデイスクプレ−ヤ
JPS5977639A (ja) * 1982-10-25 1984-05-04 Hitachi Ltd 光ディスク記録再生方法

Also Published As

Publication number Publication date
JPS60247837A (ja) 1985-12-07

Similar Documents

Publication Publication Date Title
JPS6132731B2 (fr)
JPH0227734B2 (fr)
US5859824A (en) Digital disk player
EP0154302B1 (fr) Système optique pour détecter la position d'une lentille d'objectif
JPH069087B2 (ja) 光学的情報記録再生装置
US4891798A (en) Optical disc player with focus control for preventing erroneous focus on outer surface of optical disc
JPH0438052B2 (fr)
US5001695A (en) Optical information processing apparatus for stopping tracking and/or focusing controls in an area having preformat signal recorded therein
JPH0583970B2 (fr)
US6674694B1 (en) Light-pickup device applied to a recording and/or reproduction device for an optical disk inluding a detection circuit that generates a focus zero cross signal
JPH076372A (ja) 光ピックアップ装置およびそのフォーカス制御方法
JP2598165B2 (ja) 光ディスク記録再生装置
KR970011820B1 (ko) 광자기디스크장치의 포커스 위치결정제어방법
KR100248016B1 (ko) 광픽업의 서보방법 및 그 장치
JPH077528B2 (ja) 光学式情報記録装置
JPH10228717A (ja) 光ディスク装置
JPS61156540A (ja) 光情報記録再生装置
JPS63298822A (ja) 光ピックアップの制御方式
JPH033119A (ja) 光ディスク装置
JPH0452558B2 (fr)
JPS6356818A (ja) 情報記録再生装置
JPS60251529A (ja) 光学式ディスク・プレーヤ
JPH0438685A (ja) トラックジャンプ装置
JPS61156541A (ja) 光情報記録再生装置
JPS6231031A (ja) 情報記録装置のフオ−カスサ−ボ引込み装置

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term