JPH0237027B2 - - Google Patents

Info

Publication number
JPH0237027B2
JPH0237027B2 JP57026004A JP2600482A JPH0237027B2 JP H0237027 B2 JPH0237027 B2 JP H0237027B2 JP 57026004 A JP57026004 A JP 57026004A JP 2600482 A JP2600482 A JP 2600482A JP H0237027 B2 JPH0237027 B2 JP H0237027B2
Authority
JP
Japan
Prior art keywords
signal
information
level
tracking
peak level
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
JP57026004A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58143472A (ja
Inventor
Yoshimi Iso
Shigeki Inoe
Tsutomu Noda
Shinichi Oohashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57026004A priority Critical patent/JPS58143472A/ja
Priority to EP83101658A priority patent/EP0087718B1/en
Priority to DE8383101658T priority patent/DE3363996D1/de
Priority to US06/468,190 priority patent/US4539665A/en
Publication of JPS58143472A publication Critical patent/JPS58143472A/ja
Publication of JPH0237027B2 publication Critical patent/JPH0237027B2/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
    • 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
    • G11B7/0903—Multi-beam tracking systems

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Control Of Position Or Direction (AREA)
JP57026004A 1982-02-22 1982-02-22 記録情報再生装置のトラツキングサ−ボ制御装置 Granted JPS58143472A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57026004A JPS58143472A (ja) 1982-02-22 1982-02-22 記録情報再生装置のトラツキングサ−ボ制御装置
EP83101658A EP0087718B1 (en) 1982-02-22 1983-02-21 Tracking servo control unit for an information reproducing apparatus
DE8383101658T DE3363996D1 (en) 1982-02-22 1983-02-21 Tracking servo control unit for an information reproducing apparatus
US06/468,190 US4539665A (en) 1982-02-22 1983-02-22 Tracking servo control unit for an information reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57026004A JPS58143472A (ja) 1982-02-22 1982-02-22 記録情報再生装置のトラツキングサ−ボ制御装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP23115285A Division JPS61122939A (ja) 1985-10-18 1985-10-18 記録情報再生装置のトラツキングサ−ボ制御装置

Publications (2)

Publication Number Publication Date
JPS58143472A JPS58143472A (ja) 1983-08-26
JPH0237027B2 true JPH0237027B2 (en, 2012) 1990-08-22

Family

ID=12181548

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57026004A Granted JPS58143472A (ja) 1982-02-22 1982-02-22 記録情報再生装置のトラツキングサ−ボ制御装置

Country Status (4)

Country Link
US (1) US4539665A (en, 2012)
EP (1) EP0087718B1 (en, 2012)
JP (1) JPS58143472A (en, 2012)
DE (1) DE3363996D1 (en, 2012)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59139152A (ja) * 1983-01-28 1984-08-09 Canon Inc 光情報再生方法および装置
JPS59140642A (ja) * 1983-01-31 1984-08-13 Canon Inc トラツキングエラ−信号検出装置
DE3323007C1 (de) * 1983-06-25 1984-06-28 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Spurfolgesystem mit einem optischen Abtaster für ein Audio- oder Video-Plattenwiedergabegerät
JPS6069840A (ja) * 1983-09-22 1985-04-20 Canon Inc 情報記録又は再生装置
JPS6067518U (ja) * 1983-10-12 1985-05-14 ヤマハ株式会社 光学式デイスク再生装置の信号処理回路
NL8403534A (nl) * 1984-11-21 1986-06-16 Philips Nv Inrichting voor het uitlezen van een schijfvormige registratiedrager.
US4706235A (en) * 1985-01-25 1987-11-10 Storage Technology Partners 11 Differential track recording
EP0207517B1 (en) * 1985-07-05 1991-02-27 Mitsubishi Denki Kabushiki Kaisha Optical pickup apparatus
EP0216341B1 (en) * 1985-09-27 1990-07-04 Sharp Kabushiki Kaisha Tracking system for optical disc memory
JPH064414Y2 (ja) * 1986-03-10 1994-02-02 パイオニア株式会社 トラツキング制御装置
JPH0721865B2 (ja) * 1986-08-29 1995-03-08 パイオニア株式会社 光学式記録情報読取装置
JPH0679378B2 (ja) * 1986-12-15 1994-10-05 ソニー株式会社 光学式記録再生装置のトラツキングサ−ボ回路
JP2696822B2 (ja) * 1987-01-22 1998-01-14 ソニー株式会社 トラツキングサーボ装置
JPH0719385B2 (ja) * 1987-04-24 1995-03-06 株式会社日立製作所 光学的記録再生装置
JPH0654542B2 (ja) * 1987-08-28 1994-07-20 富士通株式会社 光学記憶装置
US5291466A (en) * 1989-03-22 1994-03-01 Goldstar Co., Ltd. Automatic control system for a tracking servo unbalance of optical disk player
DE3916462A1 (de) * 1989-05-20 1990-11-22 Thomson Brandt Gmbh Verfahren zum spurspringen
US5293366A (en) * 1990-07-26 1994-03-08 Canon Kabushiki Kaisha Information recording and reproducing apparatus provided with means for adding to a tracking signal offset corresponding to the positional deviation of a recording spot and a reproducing spot
US5689485A (en) * 1996-04-01 1997-11-18 Discovision Associates Tracking control apparatus and method
JPH11120576A (ja) * 1997-10-14 1999-04-30 Kenwood Corp 光ディスク再生方法、光ディスク再生装置
TW410335B (en) * 1997-10-14 2000-11-01 Kenwood Corp Method and apparatus of intermittent arrangement multibeam optical disc readout
US6339565B1 (en) 1999-03-31 2002-01-15 Lsi Logic Corporation Non-linear center-error generator for DVD servo control

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037252A (en) * 1973-11-10 1977-07-19 U.S. Philips Corporation Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking
NL7315419A (nl) * 1973-11-10 1975-05-13 Philips Nv Inrichting voor het uitlezen van een schijfvor- mige registratiedrager.
NL7509906A (nl) * 1975-08-21 1977-02-23 Philips Nv Inrichting voor het uitlezen van een schijfvor- mige registratiedrager.
NL7812111A (nl) * 1978-12-13 1980-06-17 Philips Nv Inrichting voor het optisch uitlezen van een schijf- vormige registratiedrager, in het bijzonder het snel opzoeken van een gewenst programmagedeelte.
JPS6048809B2 (ja) * 1979-10-16 1985-10-29 パイオニアビデオ株式会社 情報読取装置におけるトラッキングサ−ボ引込装置
US4340950A (en) * 1979-10-12 1982-07-20 Universal Pioneer Corporation Video disc player
JPS6331218Y2 (en, 2012) * 1979-11-08 1988-08-22
NL8001974A (nl) * 1980-04-03 1981-11-02 Philips Nv Spoorvolginrichting.
US4365324A (en) * 1980-11-19 1982-12-21 Rca Corporation Eccentricity control device
JPS57120276A (en) * 1981-01-19 1982-07-27 Pioneer Electronic Corp Tracking servo lead-in system of recorded information reader

Also Published As

Publication number Publication date
US4539665A (en) 1985-09-03
EP0087718A1 (en) 1983-09-07
EP0087718B1 (en) 1986-06-11
DE3363996D1 (en) 1986-07-17
JPS58143472A (ja) 1983-08-26

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