SG120278A1 - A rotating recorder with dual encoder arrangement having eccentricity compensation - Google Patents

A rotating recorder with dual encoder arrangement having eccentricity compensation

Info

Publication number
SG120278A1
SG120278A1 SG200505264A SG200505264A SG120278A1 SG 120278 A1 SG120278 A1 SG 120278A1 SG 200505264 A SG200505264 A SG 200505264A SG 200505264 A SG200505264 A SG 200505264A SG 120278 A1 SG120278 A1 SG 120278A1
Authority
SG
Singapore
Prior art keywords
eccentricity compensation
encoder arrangement
dual encoder
recorder
rotating
Prior art date
Application number
SG200505264A
Other languages
English (en)
Inventor
Lawrence M Bryant
Chauhan Sundeep
Shiao-Min Kuo David
Original Assignee
Seagate Technology Llc
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 Seagate Technology Llc filed Critical Seagate Technology Llc
Publication of SG120278A1 publication Critical patent/SG120278A1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head 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 on disks
    • G11B5/59633—Servo formatting
    • 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
    • G11B21/106—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 on disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers
    • G11B5/865—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers by contact "printing"
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/10—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using electron beam; Record carriers therefor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Power Engineering (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Rotational Drive Of Disk (AREA)
  • Control Of Electric Motors In General (AREA)
SG200505264A 2004-08-19 2005-08-18 A rotating recorder with dual encoder arrangement having eccentricity compensation SG120278A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/921,276 US7298678B2 (en) 2004-08-19 2004-08-19 Rotating recorder with dual encoder arrangement having eccentricity compensation

Publications (1)

Publication Number Publication Date
SG120278A1 true SG120278A1 (en) 2006-03-28

Family

ID=35429556

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200505264A SG120278A1 (en) 2004-08-19 2005-08-18 A rotating recorder with dual encoder arrangement having eccentricity compensation

Country Status (6)

Country Link
US (1) US7298678B2 (de)
EP (1) EP1628303A3 (de)
JP (1) JP4200155B2 (de)
KR (1) KR100796839B1 (de)
CN (1) CN100382147C (de)
SG (1) SG120278A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2005124467A1 (ja) * 2004-06-21 2008-07-31 パイオニア株式会社 電子ビーム描画装置
US7236325B2 (en) * 2005-06-09 2007-06-26 Hitachi Global Storage Technologies Netherlands B.V. Method for formatting a magnetic recording disk with patterned nondata islands of alternating polarity
DE102010003526B4 (de) 2010-03-31 2024-05-02 Robert Bosch Gmbh Vorrichtung und Verfahren zur Verarbeitung von Signalen, die eine Winkelstellung einer Welle eines Motors repräsentieren
JP5479236B2 (ja) * 2010-06-15 2014-04-23 キヤノン株式会社 ロータリーエンコーダ
US8402303B2 (en) 2011-04-29 2013-03-19 Seagate Technology Llc Method for encoder frequency shift compensation
WO2017049547A1 (zh) * 2015-09-24 2017-03-30 西门子公司 电机控制系统、驱动器、逆变器及控制方法、计算机软件和存储介质
KR101963893B1 (ko) * 2018-09-04 2019-04-01 엘아이지넥스원 주식회사 엔코더 자동 정렬장치 및 이의 제어 방법
CN112379603B (zh) * 2020-11-02 2023-12-12 北京航天长征飞行器研究所 一种射频制导仿真中捷联导引头安装偏心的补偿系统及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3730782B2 (ja) * 1998-06-29 2006-01-05 パイオニア株式会社 光ディスク原盤記録装置
KR100601614B1 (ko) * 1999-07-20 2006-07-14 삼성전자주식회사 정보 기록 재생용 디스크의 편심 교정장치 및 그를 이용한 편심 교정방법
KR100829012B1 (ko) * 2001-10-12 2008-05-14 엘지전자 주식회사 광디스크의 트랙킹 제어장치
JP2003123415A (ja) * 2001-10-16 2003-04-25 Matsushita Electric Ind Co Ltd 磁気ディスクの偏心制御方法及び偏心制御方法を記録した記録媒体並びに偏心制御方法を用いた磁気ディスク装置
US7218470B2 (en) 2002-06-03 2007-05-15 Seagate Technology Llc Exposure dose control of rotating electron beam recorder
US7113360B2 (en) 2002-06-28 2006-09-26 Seagate Technology Llc Manufacture of concentric patterns from spiral source
US6885252B2 (en) * 2002-07-09 2005-04-26 Mediatex Inc. Clock recovery circuit capable of automatically adjusting frequency range of a VCO
KR20040034407A (ko) * 2002-10-15 2004-04-28 후지 샤신 필름 가부시기가이샤 전자선 묘화방법, 고밀도 기록을 위한 원반형상 담체 및자기디스크매체

Also Published As

Publication number Publication date
EP1628303A2 (de) 2006-02-22
EP1628303A3 (de) 2007-04-25
JP4200155B2 (ja) 2008-12-24
US20060039264A1 (en) 2006-02-23
KR100796839B1 (ko) 2008-01-22
CN100382147C (zh) 2008-04-16
US7298678B2 (en) 2007-11-20
JP2006092724A (ja) 2006-04-06
CN1755798A (zh) 2006-04-05
KR20060053171A (ko) 2006-05-19

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