JP4473832B2 - ディスク装置、位置決め制御回路及びそれを用いた情報処理装置 - Google Patents
ディスク装置、位置決め制御回路及びそれを用いた情報処理装置 Download PDFInfo
- Publication number
- JP4473832B2 JP4473832B2 JP2006097198A JP2006097198A JP4473832B2 JP 4473832 B2 JP4473832 B2 JP 4473832B2 JP 2006097198 A JP2006097198 A JP 2006097198A JP 2006097198 A JP2006097198 A JP 2006097198A JP 4473832 B2 JP4473832 B2 JP 4473832B2
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- JP
- Japan
- Prior art keywords
- disturbance
- frequency
- disk device
- disk
- head
- 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
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Classifications
-
- 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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5582—Track change, selection or acquisition by displacement of the head across disk tracks system adaptation for working during or after external perturbation, e.g. in the presence of a mechanical oscillation caused by a shock
-
- 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
-
- 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
- G11B21/08—Track changing or selecting during transducing operation
-
- 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
- G11B5/56—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 support for the purpose of adjusting the position of the head relative to the record carrier, e.g. manual adjustment for azimuth correction or track centering
-
- 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
-
- 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
-
- 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
- G11B7/0946—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 specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
- Feedback Control In General (AREA)
- Control Of Position Or Direction (AREA)
Description
図1は、本発明の一実施の形態のディスク装置の構成図、図2は、図1の磁気ディスクの位置信号の配置図、図3は、図1及び図2の磁気ディスクの位置信号の構成図、図4は、図1のヘッド位置制御の説明図である。
図5は、図1のMCU14が実行する外乱を抑圧する位置決め制御系の第1の実施の形態のブロック図である。この位置決め制御系は、外乱周波数を検出し、所定の周波数の正弦波状の外乱を抑圧するための制御系である。
図9は、本発明の第1の実施の形態の説明図、図10は、本発明の第1の実施の形態の処理フロー図である。
図11乃至図13は、磁気ディスク装置20が、内蔵された装置例を示す。図11は、ノートパソコン30の1つの筐体内に磁気ディスク装置20と光ディスク装置30とが取り付けられているシステムを示す。図2は、ナビゲーション装置32の1つの筐体内に磁気ディスク装置20と光ディスク装置30とが取り付けられているシステムを示す。図13は、プラズマデイスプレイ、液晶デイスプレイ等の薄型パネルデイスプレイ装置34内に、磁気ディスク装置20と光ディスク装置30とが取り付けられているシステムを示す。
図16は、本発明の第3の実施の形態の設定処理フロー図である。この実施の形態では、光ディスク装置の回転数が可変である場合の設定処理を示す。又、この実施の形態は、CPUが、光ディスク装置へのアクセス毎に、光ディスク装置の回転数を読み出し、磁気ディスク装置に通知するものである。
図17は、本発明の第4の実施の形態の設定処理フロー図である。この実施の形態では、光ディスク装置の回転数が固定である場合の設定処理を示す。又、この実施の形態は、光ディスク装置の回転数が固定であるため、CPU50は、その回転数(外乱周波数)をメモリ52に保持しており、これを、磁気ディスク装置に通知するものである。
前述の第1の実施の形態では、ディスク装置を、磁気ディスク装置で説明したが、光ディスク装置、光磁気ディスク装置等の他のディスク装置に適用できる。又、位置決め制御系を、図5及び図6の構成で説明したが、他の構成のものでも良い。
3 ヘッド
4 ディスク
5 スピンドルモータ
11 HDC
11−1 インターフェース回路
14 MCU(位置決め制御系)
104,106 外乱抑圧制御系
20 磁気ディスク装置
40 光ディスク装置
50 CPU(処理ユニット)
Claims (5)
- ディスクに少なくともリードを行うヘッドと、
前記ヘッドを前記ディスクの半径方向に移動するアクチュエータと、
目標位置と前記ヘッドのリード出力から得た現在位置との位置誤差に従って、前記アクチュエータの制御量を計算し、且つ前記位置誤差に従って、外乱抑圧制御量を計算し、前記制御量と前記外乱抑圧制御量とで、前記アクチュエータを駆動する制御ユニットと、
接続された処理ユニットから、前記目標位置と、抑圧すべき外乱周波数情報を受信するインターフェース回路とを有し、
前記制御ユニットは、前記インターフェース回路が受信した前記外乱周波数を前記外乱抑圧制御量の計算の初期値に設定し、前記受信した外乱周波数を初期値として、前記位置誤差に従い、適応制御により、前記外乱抑圧制御量を計算する
ことを特徴とするディスク装置。 - 前記制御ユニットは、
前記受信した外乱周波数を初期値として、前記位置誤差に従い、前記外乱周波数を推定し、前記推定した外乱周波数に応じて、変更された前記適応制御により、前記位置誤差に従い、前記外乱抑圧制御量を計算する
ことを特徴とする請求項1のディスク装置。 - ディスクに少なくともリードを行うヘッドと、ヘッドを前記ディスクの半径方向に移動するアクチュエータと、目標位置と前記ヘッドのリード出力から得た現在位置との位置誤差に従って、前記アクチュエータの制御量を計算し、且つ前記位置誤差に従って、外乱抑圧制御量を計算し、前記制御量と前記外乱抑圧制御量とで、前記アクチュエータを駆動する制御ユニットと、外部との接続のためのインターフェース回路とを有するディスク装置と、
前記ディスク装置のデータを少なくともリードして、データ処理する処理ユニットとを有し、
前記処理ユニットは、前記ディスク装置の前記インターフェース回路に、前記目標位置と、外乱周波数情報を送信し、
前記ディスク装置の前記制御ユニットは、前記インターフェース回路が受信した前記外乱周波数を前記外乱抑圧制御量の計算の初期値に設定し、前記受信した外乱周波数を初期値として、前記位置誤差に従い、適応制御により、前記外乱抑圧制御量を計算する
ことを特徴とする情報処理装置。 - 前記処理ユニットは、前記ディスク装置の共振周波数を前記外乱周波数情報として、送信する
ことを特徴とする請求項3の情報処理装置。 - 前記処理ユニットのデータを格納する第2のディスク装置を更に有し、
前記処理ユニットは、前記第2のディスク装置の回転周波数を前記外乱周波数情報として、前記ディスク装置に送信する
ことを特徴とする請求項3の情報処理装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006097198A JP4473832B2 (ja) | 2006-03-31 | 2006-03-31 | ディスク装置、位置決め制御回路及びそれを用いた情報処理装置 |
US11/486,307 US7684142B2 (en) | 2006-03-31 | 2006-07-13 | Disk device, positioning control circuit and information processing apparatus using same |
EP06253742A EP1840882A3 (en) | 2006-03-31 | 2006-07-18 | Disk device, positioning control circuit and information processing apparatus using same |
KR1020060073653A KR100736649B1 (ko) | 2006-03-31 | 2006-08-04 | 디스크 장치, 위치 결정 제어 회로 및 그것을 이용한 정보처리 장치 |
CNA2006101154623A CN101047012A (zh) | 2006-03-31 | 2006-08-10 | 盘装置、定位控制电路以及利用其的信息处理装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006097198A JP4473832B2 (ja) | 2006-03-31 | 2006-03-31 | ディスク装置、位置決め制御回路及びそれを用いた情報処理装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007272987A JP2007272987A (ja) | 2007-10-18 |
JP4473832B2 true JP4473832B2 (ja) | 2010-06-02 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006097198A Expired - Fee Related JP4473832B2 (ja) | 2006-03-31 | 2006-03-31 | ディスク装置、位置決め制御回路及びそれを用いた情報処理装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7684142B2 (ja) |
EP (1) | EP1840882A3 (ja) |
JP (1) | JP4473832B2 (ja) |
KR (1) | KR100736649B1 (ja) |
CN (1) | CN101047012A (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5392530B2 (ja) * | 2008-07-23 | 2014-01-22 | 株式会社ジェイテクト | モータ制御装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3092593B2 (ja) | 1998-06-19 | 2000-09-25 | 日本電気株式会社 | 磁気ヘッド位置決め制御装置 |
JP3460795B2 (ja) | 1998-06-30 | 2003-10-27 | 富士通株式会社 | ディスク記憶装置の制御方法及び制御装置 |
US6421200B2 (en) | 1998-06-30 | 2002-07-16 | Fujitsu Limited | Control method and control device for a disk storage device |
JP2000182343A (ja) | 1998-12-17 | 2000-06-30 | Toshiba Corp | 磁気ディスク装置及び同装置に適用するヘッド位置決め制御システム |
JP3586125B2 (ja) * | 1998-12-24 | 2004-11-10 | 株式会社東芝 | 磁気ディスク装置及び同装置に適用するヘッド位置決め制御システム |
US6504670B1 (en) * | 1999-07-06 | 2003-01-07 | Maxtor Corporation | Method and apparatus for reducing oscillations excited during a seek operation in a disk drive |
JP4265874B2 (ja) | 2000-07-10 | 2009-05-20 | 富士通株式会社 | デイスク装置及びトラック追従制御方法 |
US6768607B2 (en) * | 2001-08-22 | 2004-07-27 | Hitachi Global Storage Technologies Netherlands B.V. | Adaptive dual-frequency notch filter |
JP2003141833A (ja) | 2001-11-05 | 2003-05-16 | Matsushita Electric Ind Co Ltd | ヘッド位置決め装置、およびこれを用いたディスク装置 |
JP4010867B2 (ja) * | 2002-05-14 | 2007-11-21 | 株式会社日立グローバルストレージテクノロジーズ | 位置決め制御装置 |
JP3751954B2 (ja) * | 2003-04-25 | 2006-03-08 | 株式会社東芝 | ディスク記憶装置及びヘッド位置決め制御方法 |
JP4107190B2 (ja) | 2003-08-13 | 2008-06-25 | ティアック株式会社 | 光ディスク装置 |
KR20060079851A (ko) | 2003-09-08 | 2006-07-06 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 디스크 드라이브 장치 |
JP2005174510A (ja) | 2003-12-15 | 2005-06-30 | Toshiba Corp | ディスク記憶装置及びディスクシフト量算出方法 |
JP2005317130A (ja) | 2004-04-28 | 2005-11-10 | Toshiba Corp | ディスク記憶装置、ヘッド位置決め制御システム及びその方法 |
JP4987265B2 (ja) | 2004-08-05 | 2012-07-25 | パナソニック株式会社 | 周回メモリ、及びディスク装置 |
US7019934B1 (en) | 2004-12-22 | 2006-03-28 | Matsushita Electric Industrial Co. Ltd. | Optimization of media parameters for adverse operating conditions |
US7345841B2 (en) * | 2006-02-07 | 2008-03-18 | Hitachi Global Storage Technologies Netherlands B.V. | Disk drive using a disturbance sensor for disturbance frequency-identification and suppression |
-
2006
- 2006-03-31 JP JP2006097198A patent/JP4473832B2/ja not_active Expired - Fee Related
- 2006-07-13 US US11/486,307 patent/US7684142B2/en not_active Expired - Fee Related
- 2006-07-18 EP EP06253742A patent/EP1840882A3/en not_active Withdrawn
- 2006-08-04 KR KR1020060073653A patent/KR100736649B1/ko not_active IP Right Cessation
- 2006-08-10 CN CNA2006101154623A patent/CN101047012A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1840882A3 (en) | 2008-04-02 |
US7684142B2 (en) | 2010-03-23 |
EP1840882A2 (en) | 2007-10-03 |
US20070230022A1 (en) | 2007-10-04 |
JP2007272987A (ja) | 2007-10-18 |
KR100736649B1 (ko) | 2007-07-09 |
CN101047012A (zh) | 2007-10-03 |
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