JPS5938936A - 情報再生装置のサ−ボコントロ−ル回路 - Google Patents

情報再生装置のサ−ボコントロ−ル回路

Info

Publication number
JPS5938936A
JPS5938936A JP14959382A JP14959382A JPS5938936A JP S5938936 A JPS5938936 A JP S5938936A JP 14959382 A JP14959382 A JP 14959382A JP 14959382 A JP14959382 A JP 14959382A JP S5938936 A JPS5938936 A JP S5938936A
Authority
JP
Japan
Prior art keywords
tracking
servo control
focus
level
information
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
JP14959382A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0526253B2 (en, 2012
Inventor
Shuichi Kimura
修一 木村
Shuji Minami
修二 南
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 JP14959382A priority Critical patent/JPS5938936A/ja
Publication of JPS5938936A publication Critical patent/JPS5938936A/ja
Publication of JPH0526253B2 publication Critical patent/JPH0526253B2/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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
JP14959382A 1982-08-28 1982-08-28 情報再生装置のサ−ボコントロ−ル回路 Granted JPS5938936A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14959382A JPS5938936A (ja) 1982-08-28 1982-08-28 情報再生装置のサ−ボコントロ−ル回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14959382A JPS5938936A (ja) 1982-08-28 1982-08-28 情報再生装置のサ−ボコントロ−ル回路

Publications (2)

Publication Number Publication Date
JPS5938936A true JPS5938936A (ja) 1984-03-03
JPH0526253B2 JPH0526253B2 (en, 2012) 1993-04-15

Family

ID=15478589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14959382A Granted JPS5938936A (ja) 1982-08-28 1982-08-28 情報再生装置のサ−ボコントロ−ル回路

Country Status (1)

Country Link
JP (1) JPS5938936A (en, 2012)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60254472A (ja) * 1984-05-31 1985-12-16 Pioneer Electronic Corp デイスクプレ−ヤ
JPS6161239A (ja) * 1984-09-03 1986-03-29 Mitsubishi Electric Corp 光学式情報読取装置の耐震防止装置
US4703468A (en) * 1983-09-30 1987-10-27 Sony Corporation Optical disc tracking servo circuit having compensation for disc defects and external disturbances
US4764860A (en) * 1985-06-26 1988-08-16 Nippon Gakki Seizo Kabushiki Kaisha Servo circuit for an information recording and/or reproducing apparatus
JPS641172A (en) * 1987-06-22 1989-01-05 Sharp Corp Displacement correcting servo device for pickup element
JPS6459637A (en) * 1987-08-31 1989-03-07 Canon Kk Optical information recording and reproducing device
JPS6486385A (en) * 1987-05-14 1989-03-31 Akai Electric Track jump preventing device for cd player
US5036505A (en) * 1987-06-11 1991-07-30 Deutsche Thomson-Brandt Gmbh Data reproduction arrangement for recalling data readable with an optical pickup from a recorded medium
WO2003107335A3 (en) * 2002-06-14 2004-02-05 Koninkl Philips Electronics Nv SWITCHABLE CHARACTERISTIC CONTROLLER

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54147208U (en, 2012) * 1978-04-04 1979-10-13
JPS54147208A (en) * 1978-01-19 1979-11-17 Procter & Gamble Ply separable paper
JPS5528600A (en) * 1978-08-22 1980-02-29 Philips Nv Disk type record carrier reading device
JPS5760568A (en) * 1980-09-29 1982-04-12 Sony Corp Controller for pickup
JPS57113428A (en) * 1980-12-29 1982-07-14 Pioneer Video Corp Focus servo device
JPS57120275A (en) * 1981-01-19 1982-07-27 Pioneer Electronic Corp Tracking servo lead-in system of recorded information reader

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54147208A (en) * 1978-01-19 1979-11-17 Procter & Gamble Ply separable paper
JPS54147208U (en, 2012) * 1978-04-04 1979-10-13
JPS5528600A (en) * 1978-08-22 1980-02-29 Philips Nv Disk type record carrier reading device
JPS5760568A (en) * 1980-09-29 1982-04-12 Sony Corp Controller for pickup
JPS57113428A (en) * 1980-12-29 1982-07-14 Pioneer Video Corp Focus servo device
JPS57120275A (en) * 1981-01-19 1982-07-27 Pioneer Electronic Corp Tracking servo lead-in system of recorded information reader

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703468A (en) * 1983-09-30 1987-10-27 Sony Corporation Optical disc tracking servo circuit having compensation for disc defects and external disturbances
JPS60254472A (ja) * 1984-05-31 1985-12-16 Pioneer Electronic Corp デイスクプレ−ヤ
JPS6161239A (ja) * 1984-09-03 1986-03-29 Mitsubishi Electric Corp 光学式情報読取装置の耐震防止装置
US4764860A (en) * 1985-06-26 1988-08-16 Nippon Gakki Seizo Kabushiki Kaisha Servo circuit for an information recording and/or reproducing apparatus
JPS6486385A (en) * 1987-05-14 1989-03-31 Akai Electric Track jump preventing device for cd player
US5036505A (en) * 1987-06-11 1991-07-30 Deutsche Thomson-Brandt Gmbh Data reproduction arrangement for recalling data readable with an optical pickup from a recorded medium
JPS641172A (en) * 1987-06-22 1989-01-05 Sharp Corp Displacement correcting servo device for pickup element
JPS6459637A (en) * 1987-08-31 1989-03-07 Canon Kk Optical information recording and reproducing device
WO2003107335A3 (en) * 2002-06-14 2004-02-05 Koninkl Philips Electronics Nv SWITCHABLE CHARACTERISTIC CONTROLLER

Also Published As

Publication number Publication date
JPH0526253B2 (en, 2012) 1993-04-15

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