DK532285A - Apparat til aflaesning af en skiveformet optegnelsesbaerer - Google Patents

Apparat til aflaesning af en skiveformet optegnelsesbaerer Download PDF

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Publication number
DK532285A
DK532285A DK532285A DK532285A DK532285A DK 532285 A DK532285 A DK 532285A DK 532285 A DK532285 A DK 532285A DK 532285 A DK532285 A DK 532285A DK 532285 A DK532285 A DK 532285A
Authority
DK
Denmark
Prior art keywords
track
locking
record carrier
point
eccentric
Prior art date
Application number
DK532285A
Other languages
English (en)
Other versions
DK532285D0 (da
Inventor
Hilde Maria Alda Overath
Martinus Petrus Maria Bierhoff
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of DK532285D0 publication Critical patent/DK532285D0/da
Publication of DK532285A publication Critical patent/DK532285A/da

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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only
    • 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
    • G11B7/095—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 discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0953—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 discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Automatic Disk Changers (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
DK532285A 1984-11-21 1985-11-18 Apparat til aflaesning af en skiveformet optegnelsesbaerer DK532285A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8403534A NL8403534A (nl) 1984-11-21 1984-11-21 Inrichting voor het uitlezen van een schijfvormige registratiedrager.

Publications (2)

Publication Number Publication Date
DK532285D0 DK532285D0 (da) 1985-11-18
DK532285A true DK532285A (da) 1986-05-22

Family

ID=19844796

Family Applications (1)

Application Number Title Priority Date Filing Date
DK532285A DK532285A (da) 1984-11-21 1985-11-18 Apparat til aflaesning af en skiveformet optegnelsesbaerer

Country Status (11)

Country Link
US (1) US4697258A (da)
EP (1) EP0183303B1 (da)
JP (1) JPH073691B2 (da)
KR (1) KR930006350B1 (da)
AT (1) ATE50660T1 (da)
AU (1) AU585764B2 (da)
CA (1) CA1246217A (da)
DE (1) DE3576234D1 (da)
DK (1) DK532285A (da)
ES (1) ES8701403A1 (da)
NL (1) NL8403534A (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06101125B2 (ja) * 1986-05-21 1994-12-12 キヤノン株式会社 光学的情報記録再生装置
US5070495A (en) * 1989-04-12 1991-12-03 International Business Machines Corporation Write calibration for magnetooptic disk recorders
US5327410A (en) * 1989-09-30 1994-07-05 Deutsche Thomson-Brandt Gmbh Direction-determination logic as for a signal pickup in recorded signal recovery apparatus
US5812506A (en) * 1992-04-10 1998-09-22 Wea Manufacturing, Inc. System and methods for measuring and correcting for overshoot in a high frequency (HF) signal generated by a compact disc player during testing of a compact disc
JPH0896379A (ja) * 1994-09-21 1996-04-12 Nec Corp 光ヘッドのトラッキング制御装置
TW509913B (en) * 2001-03-21 2002-11-11 Via Tech Inc Optical disk driver tracking method
JP5314884B2 (ja) 2007-12-05 2013-10-16 日立コンシューマエレクトロニクス株式会社 光ディスクドライブ装置

Family Cites Families (9)

* 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
JPS6040093B2 (ja) * 1978-09-09 1985-09-09 パイオニアビデオ株式会社 トラッキングサ−ボ引込装置
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
US4365324A (en) * 1980-11-19 1982-12-21 Rca Corporation Eccentricity control device
KR880000999B1 (ko) * 1981-11-25 1988-06-10 미쓰다 가쓰시게 광학적 정보 기억장치
JPS58143472A (ja) * 1982-02-22 1983-08-26 Hitachi Ltd 記録情報再生装置のトラツキングサ−ボ制御装置
JPS59185077A (ja) * 1983-04-05 1984-10-20 Pioneer Electronic Corp トラツキングサ−ボ引込装置
US4677602A (en) * 1983-04-05 1987-06-30 Pioneer Electronic Corporation Device for controlling recording track jump operations with over-run correction

Also Published As

Publication number Publication date
EP0183303B1 (en) 1990-02-28
ES8701403A1 (es) 1986-11-16
JPS61126636A (ja) 1986-06-14
EP0183303A1 (en) 1986-06-04
DE3576234D1 (de) 1990-04-05
ES548995A0 (es) 1986-11-16
AU585764B2 (en) 1989-06-22
NL8403534A (nl) 1986-06-16
ATE50660T1 (de) 1990-03-15
JPH073691B2 (ja) 1995-01-18
US4697258A (en) 1987-09-29
CA1246217A (en) 1988-12-06
AU5004585A (en) 1986-05-29
KR860004396A (ko) 1986-06-20
KR930006350B1 (ko) 1993-07-14
DK532285D0 (da) 1985-11-18

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment