DK596387D0 - Apparat til indlaesning i og/eller aflaesning fra en skiveformet registreringsbaerer - Google Patents

Apparat til indlaesning i og/eller aflaesning fra en skiveformet registreringsbaerer

Info

Publication number
DK596387D0
DK596387D0 DK596387A DK596387A DK596387D0 DK 596387 D0 DK596387 D0 DK 596387D0 DK 596387 A DK596387 A DK 596387A DK 596387 A DK596387 A DK 596387A DK 596387 D0 DK596387 D0 DK 596387D0
Authority
DK
Denmark
Prior art keywords
track
radial
control
light spot
detection means
Prior art date
Application number
DK596387A
Other languages
English (en)
Other versions
DK596387A (da
Inventor
Philip Joseph Leo Mcgee
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 DK596387D0 publication Critical patent/DK596387D0/da
Publication of DK596387A publication Critical patent/DK596387A/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
    • G11B7/09—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
    • 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
    • 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
    • G11B7/0901—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

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Automatic Disk Changers (AREA)
DK596387A 1986-11-17 1987-11-13 Apparat til indlaesning i og/eller aflaesning fra en skiveformet registreringsbaerer DK596387A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8602911A NL8602911A (nl) 1986-11-17 1986-11-17 Inrichting voor het inschrijven en/of uitlezen van informatie in respektievelijk uit een schijfvormige registratiedrager.

Publications (2)

Publication Number Publication Date
DK596387D0 true DK596387D0 (da) 1987-11-13
DK596387A DK596387A (da) 1988-05-18

Family

ID=19848845

Family Applications (1)

Application Number Title Priority Date Filing Date
DK596387A DK596387A (da) 1986-11-17 1987-11-13 Apparat til indlaesning i og/eller aflaesning fra en skiveformet registreringsbaerer

Country Status (14)

Country Link
US (1) US4843602A (da)
EP (1) EP0268321B1 (da)
JP (1) JPS63148434A (da)
KR (1) KR880006665A (da)
CN (1) CN1009775B (da)
AT (1) ATE73950T1 (da)
AU (1) AU611611B2 (da)
BR (1) BR8706154A (da)
CA (1) CA1308192C (da)
CZ (1) CZ825287A3 (da)
DE (1) DE3777542D1 (da)
DK (1) DK596387A (da)
MX (1) MX160215A (da)
NL (1) NL8602911A (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8802435A (nl) * 1988-10-05 1990-05-01 Philips Nv Inrichting voor het aftasten van een registratiedrager, alsmede een regelschakeling voor toepassing in een dergelijke inrichting.
JPH0354737A (ja) * 1989-07-24 1991-03-08 Sony Corp 光学記録および／または再生装置
US5644560A (en) * 1991-12-26 1997-07-01 Sony Corporation Three-beam detecting system phase difference detector which eliminates phase difference error
WO2002005272A1 (en) * 2000-06-23 2002-01-17 Koninklijke Philips Electronics N.V. Device for recording and/or reproducing an optical record carrier
CN1864210A (zh) * 2002-08-28 2006-11-15 皇家飞利浦电子股份有限公司 轨道跳跃单元
WO2005081235A1 (en) * 2004-01-26 2005-09-01 Koninklijke Philips Electronics N.V. Anti-shock optical recording and reproducing device
JP4972602B2 (ja) * 2008-04-10 2012-07-11 株式会社日立製作所 光信号検出回路及びそれを用いた情報再生装置

Family Cites Families (7)

* 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
JPS5371808A (en) * 1976-12-08 1978-06-26 Toshiba Corp Optical information reader
NL8001974A (nl) * 1980-04-03 1981-11-02 Philips Nv Spoorvolginrichting.
NL8200208A (nl) * 1982-01-21 1983-08-16 Philips Nv Inrichting voor het uitlezen van een schijfvormige registratiedrager.
US4530079A (en) * 1983-03-23 1985-07-16 Xerox Corporation Track following system for optical disc drive
JPS6074129A (ja) * 1983-09-30 1985-04-26 Sony Corp 光学式デイスクのトラツキングサ−ボ回路
JPS60119641A (ja) * 1983-12-01 1985-06-27 Pioneer Electronic Corp トラッキングエラ−信号発生装置

Also Published As

Publication number Publication date
CA1308192C (en) 1992-09-29
JPS63148434A (ja) 1988-06-21
MX160215A (es) 1990-01-04
CZ825287A3 (en) 1993-03-17
CN87107886A (zh) 1988-06-01
AU8123487A (en) 1988-05-19
EP0268321B1 (en) 1992-03-18
BR8706154A (pt) 1988-06-21
AU611611B2 (en) 1991-06-13
EP0268321A1 (en) 1988-05-25
ATE73950T1 (de) 1992-04-15
KR880006665A (ko) 1988-07-23
US4843602A (en) 1989-06-27
CN1009775B (zh) 1990-09-26
DE3777542D1 (de) 1992-04-23
DK596387A (da) 1988-05-18
NL8602911A (nl) 1988-06-16

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Legal Events

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