AU2013368327B2 - Optical media servo tracking - Google Patents

Optical media servo tracking Download PDF

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Publication number
AU2013368327B2
AU2013368327B2 AU2013368327A AU2013368327A AU2013368327B2 AU 2013368327 B2 AU2013368327 B2 AU 2013368327B2 AU 2013368327 A AU2013368327 A AU 2013368327A AU 2013368327 A AU2013368327 A AU 2013368327A AU 2013368327 B2 AU2013368327 B2 AU 2013368327B2
Authority
AU
Australia
Prior art keywords
pickup unit
optical pickup
tracking signal
relative position
optical
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.)
Active
Application number
AU2013368327A
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English (en)
Other versions
AU2013368327A1 (en
Inventor
Faramarz Mahnad
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.)
Oracle International Corp
Original Assignee
Oracle International 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 International Corp filed Critical Oracle International Corp
Publication of AU2013368327A1 publication Critical patent/AU2013368327A1/en
Application granted granted Critical
Publication of AU2013368327B2 publication Critical patent/AU2013368327B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • G11B7/0906—Differential phase difference systems
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, 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

Landscapes

  • Optical Recording Or Reproduction (AREA)
AU2013368327A 2012-12-31 2013-12-05 Optical media servo tracking Active AU2013368327B2 (en)

Applications Claiming Priority (3)

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

Publications (2)

Publication Number Publication Date
AU2013368327A1 AU2013368327A1 (en) 2015-06-11
AU2013368327B2 true AU2013368327B2 (en) 2019-08-29

Family

ID=49596683

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2013368327A Active AU2013368327B2 (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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US7164630B2 (en) * 2002-01-31 2007-01-16 Kabushiki Kaisha Toshiba Optical disk apparatus

Family Cites Families (10)

* 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
KR0176888B1 (ko) * 1996-01-24 1999-04-15 구자홍 광디스크 기록재생기의 서보 제어 장치
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US7164630B2 (en) * 2002-01-31 2007-01-16 Kabushiki Kaisha Toshiba Optical disk apparatus

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
AU2013368327A1 (en) 2015-06-11
JP6250701B2 (ja) 2017-12-20
NZ709078A (en) 2018-07-27
WO2014105382A1 (en) 2014-07-03
US8593921B1 (en) 2013-11-26

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