JPS6089833A - 光学式デイスク再生装置 - Google Patents

光学式デイスク再生装置

Info

Publication number
JPS6089833A
JPS6089833A JP19605383A JP19605383A JPS6089833A JP S6089833 A JPS6089833 A JP S6089833A JP 19605383 A JP19605383 A JP 19605383A JP 19605383 A JP19605383 A JP 19605383A JP S6089833 A JPS6089833 A JP S6089833A
Authority
JP
Japan
Prior art keywords
output
objective lens
error signal
signal
focus
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
JP19605383A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0373934B2 (enExample
Inventor
Masato Ikeda
正人 池田
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 Group Corp
Original Assignee
Aiwa Co Ltd
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 Aiwa Co Ltd filed Critical Aiwa Co Ltd
Priority to JP19605383A priority Critical patent/JPS6089833A/ja
Publication of JPS6089833A publication Critical patent/JPS6089833A/ja
Publication of JPH0373934B2 publication Critical patent/JPH0373934B2/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

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
JP19605383A 1983-10-21 1983-10-21 光学式デイスク再生装置 Granted JPS6089833A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19605383A JPS6089833A (ja) 1983-10-21 1983-10-21 光学式デイスク再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19605383A JPS6089833A (ja) 1983-10-21 1983-10-21 光学式デイスク再生装置

Publications (2)

Publication Number Publication Date
JPS6089833A true JPS6089833A (ja) 1985-05-20
JPH0373934B2 JPH0373934B2 (enExample) 1991-11-25

Family

ID=16351408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19605383A Granted JPS6089833A (ja) 1983-10-21 1983-10-21 光学式デイスク再生装置

Country Status (1)

Country Link
JP (1) JPS6089833A (enExample)

Also Published As

Publication number Publication date
JPH0373934B2 (enExample) 1991-11-25

Similar Documents

Publication Publication Date Title
JPS6132731B2 (enExample)
JPS6040093B2 (ja) トラッキングサ−ボ引込装置
JP2706294B2 (ja) 光学的情報記録再生装置
EP0536336A1 (en) Apparatus for eliminating focus/tracking crosstalk in an optical disk drive system
US7139229B2 (en) Optical disk identification circuit
JPS6089833A (ja) 光学式デイスク再生装置
JP2956770B2 (ja) データ再生装置
JPS6218972B2 (enExample)
JPS61156540A (ja) 光情報記録再生装置
JPH0736228B2 (ja) 自動焦点引き込み制御装置
JPH0470698B2 (enExample)
JPS5972659A (ja) 光学的記録再生装置
JP2585265B2 (ja) 情報記録再生装置
JP3462890B2 (ja) フォーカスサーボ引き込み回路及び方法
JPS61190724A (ja) フオ−カスサ−ボ装置
JPS6217287B2 (enExample)
JPH0246532A (ja) 焦点制御装置
JPH0578092B2 (enExample)
JPH01235034A (ja) 自動焦点制御方式
JPS61156541A (ja) 光情報記録再生装置
JPH0264920A (ja) 焦点制御装置
JPS63146232A (ja) 光デイスク情報記録再生装置におけるサ−ボ装置
JPS6185631A (ja) 光学式記録再生装置におけるフオ−カスサ−ボ・タイミングコントロ−ル装置
JPH1166580A (ja) 情報再生装置、情報記録再生装置及びオントラック・オフトラック検出回路
JPH10222868A (ja) 光ディスク装置