DE3786473D1 - Mehrfaches spurverfolgungssystem. - Google Patents

Mehrfaches spurverfolgungssystem.

Info

Publication number
DE3786473D1
DE3786473D1 DE8787200463T DE3786473T DE3786473D1 DE 3786473 D1 DE3786473 D1 DE 3786473D1 DE 8787200463 T DE8787200463 T DE 8787200463T DE 3786473 T DE3786473 T DE 3786473T DE 3786473 D1 DE3786473 D1 DE 3786473D1
Authority
DE
Germany
Prior art keywords
tracking system
tracking
multiple tracking
recording
storing
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
DE8787200463T
Other languages
English (en)
Other versions
DE3786473T2 (de
Inventor
Peter Johannes Michiel Janssen
Gerardus Lucien Mathild Jansen
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3786473D1 publication Critical patent/DE3786473D1/de
Publication of DE3786473T2 publication Critical patent/DE3786473T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G11B7/085—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
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners
    • 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)
  • Burglar Alarm Systems (AREA)
  • Vehicle Body Suspensions (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Optical Head (AREA)
DE87200463T 1986-03-17 1987-03-12 Mehrfaches Spurverfolgungssystem. Expired - Lifetime DE3786473T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/840,058 US4768180A (en) 1986-03-17 1986-03-17 Multistage tracking system

Publications (2)

Publication Number Publication Date
DE3786473D1 true DE3786473D1 (de) 1993-08-19
DE3786473T2 DE3786473T2 (de) 1994-01-27

Family

ID=25281345

Family Applications (1)

Application Number Title Priority Date Filing Date
DE87200463T Expired - Lifetime DE3786473T2 (de) 1986-03-17 1987-03-12 Mehrfaches Spurverfolgungssystem.

Country Status (8)

Country Link
US (1) US4768180A (de)
EP (1) EP0238138B1 (de)
JP (1) JP2783405B2 (de)
KR (1) KR940011230B1 (de)
AT (1) ATE91558T1 (de)
AU (1) AU601719B2 (de)
CA (1) CA1263748A (de)
DE (1) DE3786473T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2593941B2 (ja) * 1989-08-19 1997-03-26 富士通株式会社 光ディスク装置のアクチュエータオフセット除去装置
JP2861457B2 (ja) * 1990-05-24 1999-02-24 セイコーエプソン株式会社 光学式記録再生装置
US5452276A (en) * 1991-01-31 1995-09-19 Deutsche Thomson-Brandt/Gmbh Tracking regulation circuit including apparatus for disabling coarse drive signals
US5446712A (en) * 1991-04-22 1995-08-29 Seiko Epson Corporation Optical system having a precision angular displacement mechanism including a flat metal spring
EP0574996B1 (de) * 1992-06-19 1997-09-03 Koninklijke Philips Electronics N.V. Einrichtung zum optischen Abtasten einer Oberfläche
EP0574995B1 (de) * 1992-06-19 1998-01-21 Koninklijke Philips Electronics N.V. Einrichtung zum optischen Abtasten einer Oberfläche
US5566152A (en) * 1992-10-21 1996-10-15 Matsushita Electric Industrial Co., Ltd. Tracking control system with correction capabilities for correcting disagreement between optical axes
DE19743935A1 (de) * 1997-10-04 1999-04-08 Thomson Brandt Gmbh Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US29963A (en) * 1860-09-11 Improvement in wood-screws
USRE29963E (en) * 1972-03-29 1979-04-10 U.S. Philips Corporation Servo system for reading from a disc-shaped record carrier containing signals coded in optical form
US3829622A (en) * 1972-10-24 1974-08-13 Mca Disco Vision Video disc player with variably biased pneumatic head
US4225873A (en) * 1978-03-27 1980-09-30 Mca Disco-Vision, Inc. Recording and playback system
SE7405076L (sv) * 1974-04-16 1975-10-17 Erik Gerhard Natanel Westberg Optiskt massdataminne.
NL7509906A (nl) * 1975-08-21 1977-02-23 Philips Nv Inrichting voor het uitlezen van een schijfvor- mige registratiedrager.
FR2366636A1 (fr) * 1976-10-01 1978-04-28 Thomson Brandt Dispositif d'enregistrement optique d'information sur un support avec asservissement de la position de la tache d'enregistrement sur le support d'information
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.
US4271334A (en) * 1979-04-06 1981-06-02 Discovision Associates Apparatus for correcting for temperature-induced tracking errors in a system for recovering information from a recording disc
US4322837A (en) * 1979-08-27 1982-03-30 Discovision Associates Dithered center tracking system
JPS57120238A (en) * 1981-01-16 1982-07-27 Matsushita Electric Ind Co Ltd Reproducing device
US4419750A (en) * 1981-07-13 1983-12-06 Eastman Kodak Company Constant track width optical disk recording
US4466088A (en) * 1981-12-21 1984-08-14 Burroughs Corporation Galvo position sensor for track selection in optical data disk system
US4556964A (en) * 1981-12-21 1985-12-03 Burroughs Corporation Technique for monitoring galvo angle
JPH068934B2 (ja) * 1982-01-11 1994-02-02 オリンパス光学工業株式会社 光束合成装置
US4432082A (en) * 1982-02-17 1984-02-14 Burroughs Corporation Optical memory system having a long seek capability
US4432083A (en) * 1982-02-17 1984-02-14 Burroughs Corporation Optical memory system having track following
US4564754A (en) * 1982-03-08 1986-01-14 Hitachi, Ltd. Method and apparatus for optically measuring a current
WO1984001849A1 (en) * 1982-11-01 1984-05-10 Storage Technology Partners Fine and coarse servo system for access and tracking on an optical disk
NL8300133A (nl) * 1983-01-14 1984-08-01 Philips Nv Inrichting voor het met behulp van een stralingsbundel inschrijven en/of uitlezen van informatie.
US4520471A (en) * 1983-02-07 1985-05-28 Rca Corporation Multi-channel recording/playback optics for laser diode arrays
JPS613332A (ja) * 1984-06-15 1986-01-09 Hitachi Ltd スポツト位置決め方式
JPS6118918A (ja) * 1984-07-05 1986-01-27 Ricoh Co Ltd ビ−ム整形光学系
US4571712A (en) * 1984-07-06 1986-02-18 Storage Technology Partners Ii Beam alignment signal processing
US4621351A (en) * 1984-07-06 1986-11-04 Storage Technology Partners Ii Beam alignment system
JPS6122448A (ja) * 1984-07-10 1986-01-31 Fujitsu Ltd 光学ヘツド位置決め機構
US4688201A (en) * 1985-01-16 1987-08-18 Hewlett-Packard Company Focusing and tracking apparatus for an optical data storage device
JPS61194647A (ja) * 1985-02-22 1986-08-29 Fujitsu Ltd 光デイスク装置のトラツク位置検出補正方法

Also Published As

Publication number Publication date
EP0238138B1 (de) 1993-07-14
KR940011230B1 (ko) 1994-11-29
CA1263748A (en) 1989-12-05
EP0238138A2 (de) 1987-09-23
KR870009364A (ko) 1987-10-26
EP0238138A3 (en) 1989-12-13
ATE91558T1 (de) 1993-07-15
DE3786473T2 (de) 1994-01-27
AU7005687A (en) 1987-09-24
AU601719B2 (en) 1990-09-20
JP2783405B2 (ja) 1998-08-06
JPS62275328A (ja) 1987-11-30
US4768180A (en) 1988-08-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N