NZ709078A - Optical media servo tracking - Google Patents

Optical media servo tracking

Info

Publication number
NZ709078A
NZ709078A NZ709078A NZ70907813A NZ709078A NZ 709078 A NZ709078 A NZ 709078A NZ 709078 A NZ709078 A NZ 709078A NZ 70907813 A NZ70907813 A NZ 70907813A NZ 709078 A NZ709078 A NZ 709078A
Authority
NZ
New Zealand
Prior art keywords
optical media
optical pickup
storage system
track
pickup unit
Prior art date
Application number
NZ709078A
Other languages
English (en)
Inventor
Faramarz Mahnad
Original Assignee
Oracle Int 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 Oracle Int Corp filed Critical Oracle Int Corp
Publication of NZ709078A publication Critical patent/NZ709078A/en

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/002Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0901Disposition 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0901Disposition 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
    • G11B7/0906Differential phase difference systems

Landscapes

  • Optical Recording Or Reproduction (AREA)
NZ709078A 2012-12-31 2013-12-05 Optical media servo tracking NZ709078A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/731,384 US8593921B1 (en) 2012-12-31 2012-12-31 Optical media servo tracking
PCT/US2013/073281 WO2014105382A1 (en) 2012-12-31 2013-12-05 Optical media servo tracking

Publications (1)

Publication Number Publication Date
NZ709078A true NZ709078A (en) 2018-07-27

Family

ID=49596683

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ709078A NZ709078A (en) 2012-12-31 2013-12-05 Optical media servo tracking

Country Status (7)

Country Link
US (1) US8593921B1 (https=)
EP (1) EP2939237B1 (https=)
JP (1) JP6250701B2 (https=)
CN (1) CN104903958B (https=)
AU (1) AU2013368327B2 (https=)
NZ (1) NZ709078A (https=)
WO (1) WO2014105382A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9142236B1 (en) 2014-09-30 2015-09-22 Oracle International Corporation H-bridge power amplifier for optical recording head actuator
US9336812B1 (en) 2015-01-09 2016-05-10 Oracle International Corporation Adaptive control of tracking servo system of optical heads in optical storage devices

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63229631A (ja) * 1987-03-18 1988-09-26 Nippon Columbia Co Ltd 光デイスク装置
JPH05325234A (ja) * 1991-11-25 1993-12-10 Pioneer Electron Corp 光ディスクプレーヤのトラッキング装置
KR0176888B1 (ko) * 1996-01-24 1999-04-15 구자홍 광디스크 기록재생기의 서보 제어 장치
JPH11175989A (ja) * 1997-12-15 1999-07-02 Hitachi Ltd トラッキング制御方式および光ディスク評価方式および光ヘッドおよび光ディスク装置
JP3566701B2 (ja) * 2002-01-31 2004-09-15 株式会社東芝 光ディスク記録再生装置
JP2007524180A (ja) * 2004-01-21 2007-08-23 マイクロコンティニュアム・インコーポレーテッド 事前フォーマット済み線状光データ記憶媒体を製造するための機器および方法
US7391701B2 (en) * 2005-08-15 2008-06-24 Opternity Storage, Inc. Methods and systems for in-track optical positioning
JP4167682B2 (ja) * 2005-09-30 2008-10-15 東芝サムスン ストレージ・テクノロジー株式会社 光ディスク装置、トラッキングエラー信号選択方法
US7609599B2 (en) * 2006-02-17 2009-10-27 Mediatek Inc. Method of identifying a type of an optical disc and the device therefor
JP2008159214A (ja) * 2006-12-26 2008-07-10 Hitachi-Lg Data Storage Inc 光ディスク装置及び光ディスクの判別方法
US8134909B2 (en) * 2007-07-10 2012-03-13 Sharp Kabushiki Kaisha Optical information storage medium, optical information storage medium playback apparatus, method of controlling optical information storage medium playback apparatus, control program of optical information storage medium playback apparatus, and storage medium storing the program therein
TWI360111B (en) * 2009-04-24 2012-03-11 Sunplus Technology Co Ltd Method for determining type of optical disk and ap
US8503276B2 (en) * 2009-12-30 2013-08-06 Mediatek Inc. Optical disk drive and method for determining type of a blu-ray disk

Also Published As

Publication number Publication date
EP2939237A1 (en) 2015-11-04
EP2939237B1 (en) 2021-06-02
CN104903958A (zh) 2015-09-09
JP2016502225A (ja) 2016-01-21
CN104903958B (zh) 2018-09-18
AU2013368327B2 (en) 2019-08-29
AU2013368327A1 (en) 2015-06-11
JP6250701B2 (ja) 2017-12-20
WO2014105382A1 (en) 2014-07-03
US8593921B1 (en) 2013-11-26

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