DE68917720D1 - Optische platte und regelung der bewegung deren optischen lichtpunktes. - Google Patents

Optische platte und regelung der bewegung deren optischen lichtpunktes.

Info

Publication number
DE68917720D1
DE68917720D1 DE68917720T DE68917720T DE68917720D1 DE 68917720 D1 DE68917720 D1 DE 68917720D1 DE 68917720 T DE68917720 T DE 68917720T DE 68917720 T DE68917720 T DE 68917720T DE 68917720 D1 DE68917720 D1 DE 68917720D1
Authority
DE
Germany
Prior art keywords
optical
track
movement
optical spot
control
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 - Fee Related
Application number
DE68917720T
Other languages
English (en)
Other versions
DE68917720T2 (de
Inventor
Seiji Kobayashi
Norio Nishida
Naoya Eguchi
Shunji Yoshimura
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
Publication of DE68917720D1 publication Critical patent/DE68917720D1/de
Application granted granted Critical
Publication of DE68917720T2 publication Critical patent/DE68917720T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Head (AREA)
  • Moving Of Heads (AREA)
DE68917720T 1988-04-18 1989-04-18 Optische platte und regelung der bewegung deren optischen lichtpunktes. Expired - Fee Related DE68917720T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63096510A JP2646645B2 (ja) 1988-04-18 1988-04-18 光ディスクの光スポット移動装置
PCT/JP1989/000414 WO1989010614A1 (en) 1988-04-18 1989-04-18 Optical disk and movement control of its optical spot

Publications (2)

Publication Number Publication Date
DE68917720D1 true DE68917720D1 (de) 1994-09-29
DE68917720T2 DE68917720T2 (de) 1995-01-12

Family

ID=14167122

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68917720T Expired - Fee Related DE68917720T2 (de) 1988-04-18 1989-04-18 Optische platte und regelung der bewegung deren optischen lichtpunktes.

Country Status (7)

Country Link
US (1) US5144605A (de)
EP (1) EP0404942B1 (de)
JP (1) JP2646645B2 (de)
KR (1) KR100195557B1 (de)
AT (1) ATE110485T1 (de)
DE (1) DE68917720T2 (de)
WO (1) WO1989010614A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0210579A (ja) * 1988-06-29 1990-01-16 Hitachi Ltd 光学的情報記録再生装置
JP2796344B2 (ja) * 1989-04-12 1998-09-10 株式会社日立製作所 光学的情報記録媒体および記録再生装置
JPH03185640A (ja) * 1989-12-15 1991-08-13 Hitachi Ltd 光学的情報記録媒体および記録再生装置
JPH04254919A (ja) * 1991-02-07 1992-09-10 Hitachi Ltd トラッキング制御方法及び装置
JP3243800B2 (ja) * 1991-06-07 2002-01-07 ソニー株式会社 光ディスク媒体のグレーコードの形成方法及びトラックアドレス再生装置
US5345435A (en) * 1991-08-30 1994-09-06 Sony Corporation Optical disc and method for recording on optical disc
US5764457A (en) * 1992-01-10 1998-06-09 Deutsche Thomson-Brandt Gmbh Cassette including a recording medium for a recording apparatus
KR940011229B1 (ko) * 1992-07-07 1994-11-29 현대전자산업 주식회사 광디스크 장치의 트래킹 인입 시스팀 및 운용 방법
KR19980029035A (ko) * 1996-10-25 1998-07-15 김영환 위상차 검출법에 의한 트랙킹 에러 생성회로
JP2001253114A (ja) * 2000-03-13 2001-09-18 Fuji Photo Film Co Ltd 画像露光記録装置における光量調整方法および装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919697A (en) * 1974-06-26 1975-11-11 Battelle Development Corp Data record tracking using track identifying information in the gaps between recorded data groups
US4032984A (en) * 1975-04-28 1977-06-28 Burroughs Corporation Transducer positioning system for providing both coarse and fine positioning
NL7702570A (nl) * 1977-03-10 1978-09-12 Philips Nv Magneetschijfgeheugen en magneetschijf voor dat geheugen.
US4352131A (en) * 1980-02-29 1982-09-28 U.S. Philips Corporation Memory disc addressing device
JPS58218079A (ja) * 1982-06-14 1983-12-19 Toshiba Corp ヘツドの位置決め方式
JPS58175169A (ja) * 1982-04-06 1983-10-14 Pioneer Electronic Corp 情報再生装置における記録トラツクとピツクアツプとの相対位置制御装置
US4677602A (en) * 1983-04-05 1987-06-30 Pioneer Electronic Corporation Device for controlling recording track jump operations with over-run correction
US4977472A (en) * 1988-03-28 1990-12-11 Seagate Technology, Inc. Servo address system

Also Published As

Publication number Publication date
KR100195557B1 (en) 1999-06-15
ATE110485T1 (de) 1994-09-15
WO1989010614A1 (en) 1989-11-02
JP2646645B2 (ja) 1997-08-27
EP0404942A4 (en) 1992-03-18
JPH01267877A (ja) 1989-10-25
DE68917720T2 (de) 1995-01-12
EP0404942A1 (de) 1991-01-02
EP0404942B1 (de) 1994-08-24
KR900701008A (ko) 1990-08-17
US5144605A (en) 1992-09-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee